Patent Grant
9017321
Aspects of this disclosure generally are related to systems and methods for activating transducers, such systems and methods applicable to, among other things, medical systems.
Cardiac surgery was initially undertaken using highly invasive open procedures. A sternotomy, which is a type of incision in the center of the chest that separates the sternum was typically employed to allow access to the heart. In the past several decades, more and more cardiac operations are performed using intravascular or percutaneous techniques, where access to inner organs or other tissue is gained via a catheter.
Intravascular or percutaneous surgeries benefit patients by reducing surgery risk, complications and recovery time. However, the use of intravascular or percutaneous technologies also raises some particular challenges. Medical devices used in intravascular or percutaneous surgery need to be deployed via catheter systems which significantly increase the complexity of the device structure. As well, doctors do not have direct visual contact with the medical devices once the devices are positioned within the body.
One example of where intravascular or percutaneous medical techniques have been employed is in the treatment of a heart disorder called atrial fibrillation. Atrial fibrillation is a disorder in which spurious electrical signals cause an irregular heartbeat. Atrial fibrillation has been treated with open heart methods using a technique known as the “Cox-Maze procedure”. During this procedure, physicians create specific patterns of lesions in the left and right atria to block various paths taken by the spurious electrical signals. Such lesions were originally created using incisions, but are now typically created by ablating the tissue with various techniques including radio-frequency (RF) energy, microwave energy, laser energy and cryogenic techniques. The procedure is performed with a high success rate under the direct vision that is provided in open procedures, but is relatively complex to perform intravascularly or percutaneously because of the difficulty in creating the lesions in the correct locations. Various problems, potentially leading to severe adverse results, may occur if the lesions are placed incorrectly. It is particularly important to know the position of the various transducers which will be creating the lesions relative to cardiac features such as the pulmonary veins and mitral valve. The continuity, transmurality and placement of the lesion patterns that are formed can impact the ability to block paths taken within the heart by spurious electrical signals. Other requirements for various ones of the transducers to perform additional functions such as, but not limited to, mapping various anatomical features, mapping electrophysiological activity, sensing tissue characteristics such as impedance and temperature and tissue stimulation can also complicate the operation of the employed medical device.
In this regard, there is a need for intra-bodily-cavity transducer-based devices with improved performance and reduced complexity as compared to conventional devices.
At least the above-discussed need is addressed and technical solutions are achieved by various embodiments of the present invention. In some embodiments, device systems and methods executed by such systems exhibit enhanced capabilities for the activation of various transducers, which may be located within a bodily cavity, such as an intra-cardiac cavity. In some embodiments, the systems or a portion thereof may be percutaneously or intravascularly delivered to position the various transducers within the bodily cavity. Various ones of the transducers may be activated to distinguish tissue from blood and may be used to deliver positional information of the device relative to various anatomical features in the bodily cavity, such as the pulmonary veins and mitral valve in an atrium. Various ones of the transducers may employ characteristics such as blood flow detection, impedance change detection or deflection force detection to discriminate between blood and tissue. Various ones of the transducers may be used to treat tissue within a bodily cavity. Treatment may include tissue ablation by way of non-limiting example. Various ones of the transducers may be used to stimulate tissue within the bodily cavity. Stimulation can include pacing by way of non-limiting example. Other advantages will become apparent from the teaching herein to those of skill in the art.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program includes reception instructions configured to cause reception from the input-output device system of a first sequence of transducer sets selected from a plurality of transducers of a catheter device. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in a bodily cavity. The transducer sets in the first sequence form a group of transducer sets, each of the transducer sets in the group including at least one of the plurality of transducers. The program includes generation instructions configured to, in response to receiving at least part of the first sequence, cause generation of a second sequence of transducer sets based at least on an analysis of the transducer sets in the group. The second sequence is different than the first sequence, and the transducer sets in the second sequence include transducers in the group. The program includes activation instructions configured to cause sequential activation, initiated during or after completion of the generation of the second sequence according to the generation instructions, of the transducer sets in the second sequence according to the second sequence. The activation instructions are further configured to cause activation of at least one transducer in each of the sequentially activated transducer sets.
The input-output device system may include the catheter device and the memory device system may store information associated with a respective activation time interval for each of at least two of the transducers included in the transducer sets in the group, the respective activation time intervals having different durations. The analysis may include an analysis of each of the respective activation time intervals, and the activation instructions may be further configured to cause activation of each of the at least two of the transducers for the duration of the respective activation time interval. The input-output device system may include an energy source device system connected to each transducer in each of the at least two transducers, and the activation of the at least two of the transducers may include causing a delivery of energy from the energy source device system to each of the at least two transducers for the duration of the respective activation time interval. The respective activation time interval associated with each of the at least two transducers may be a default time interval.
The input-output device system may include the catheter device and the analysis may include an analysis of a spatial relationship between a first transducer in a first one of the transducer sets in the group and a second transducer in a second one of the transducer sets in the group. The input-output device system may include a plurality of energy source devices, each of the plurality of energy source devices arranged to selectively provide energy to each of at least some but not all of the transducers in the group, the plurality of energy source devices numbering fewer than the plurality of transducers, and the analysis may include an analysis of a connection arrangement between each of at least some of the transducer sets in the group and the plurality of energy source devices.
The input-output device system may include the catheter device and each of the transducers in the group may include an electrode having an energy transmission surface, each energy transmission surface having a corresponding size. The corresponding sizes of at least two of the electrodes may have a difference in magnitude, and the analysis may include an analysis of the difference in magnitude between the respective corresponding sizes of the at least two of the electrodes. The size of each energy transmission surface may be a surface area size of an exposed conductive portion of the corresponding energy transmission surface.
The input-output device system may include the catheter device and each of at least two of the transducer sets in the group may include a respective pair of adjacent ones of the transducers in the distribution, the transducers in each pair of adjacent ones of the transducers in the distribution spaced with respect to one another by a respective transducer-to-transducer distance. The respective transducer-to-transducer distances associated with the at least two of the transducer sets in the group may have a difference or differences in magnitude, and the analysis may include an analysis of the difference or at least one of the differences in magnitude between the respective transducer-to-transducer distances associated with the least two of the transducer sets in the group.
The input-output device system may include the catheter device. Each of at least some of the transducer sets in the group may include a respective pair of adjacent ones of the transducers in the distribution, and the analysis may include an analysis of whether a region of space not including any transducer and not associated with any physical part of the catheter device is present or absent between the respective pair of adjacent ones of transducers of each of the at least some of the transducer sets in the group. The catheter device may include a plurality of elongate members, each elongate member of the plurality of elongate members including a proximal end, a distal end and an intermediate portion positioned between the proximal and distal ends. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity. Each of at least some of the transducer sets in the group may include a respective pair of adjacent ones of the transducers in the distribution, and the analysis may include an analysis of whether the transducers of the respective pair of adjacent ones of transducers of each of the at least some of the transducer sets in the group are located on a same elongate member of the plurality of elongate members or on different elongate members of the plurality of elongate members.
The input-output device system may include the catheter device, and each of at least two of the transducer sets in the group may include a respective pair of adjacent ones of the transducers in the distribution. The analysis may include an analysis of whether each of the respective pairs of adjacent ones of transducers of the at least two of the transducer sets in the group has a same transducer as another of the respective pairs of adjacent ones of transducers of the at least two of the transducer sets in the group.
Each of at least some of the transducer sets in the group may include at least two transducers in the plurality of transducers of the catheter device. Each of the at least some of the transducer sets in the group may include at least one transducer different than each of the other transducer sets in the group. Each of at least some of the transducer sets in the group may include a respective pair of adjacent ones of the transducers in the distribution. The respective pair of adjacent ones of the transducers of each of the at least some of the transducer sets in the group may have a same transducer as the respective pair of adjacent ones of the transducers of another of the at least some of the transducer sets in the group. At least a first transducer set in the group may have a same transducer as a second transducer set in the group.
The input-output device system may include the catheter device and an energy source device system. The sequential activation may include causing a delivery of energy from the energy source device system to transducers in the second sequence, the energy sufficient to cause ablation of tissue in the bodily cavity. The energy may be sufficient to cause bipolar ablation of at least a portion of the tissue in the bodily cavity.
The input-output device system may include the catheter device, an energy source device system and a sensing device system. The sequential activation may include causing a delivery of energy from the energy source device system to transducers in the second sequence. The sensing device system may be configured to sense at least one tissue electrical characteristic at respective one or more locations at least proximate each of the transducers in the second sequence that receive energy from the energy source device system according to the activation instructions.
The input-output device system may include the catheter device and the bodily cavity may be an intra-cardiac cavity. The sequential activation may include causing a generation of a respective set of one or more electrograms for each transducer set in the second sequence. The catheter device may include a structure that includes a plurality of elongate members, each elongate member of the plurality of elongate members including a proximal end, a distal end and an intermediate portion positioned between the proximal and distal ends. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity, the plurality of transducers located on at least some of the plurality of elongate members. At least a first one of the transducer sets in the group may include a pair of adjacent ones of the transducers in the distribution located on a same elongate member of the at least some of the plurality of elongate members, and at least a second one of the sets of the group of transducer sets may include a pair of adjacent ones of the transducers in the distribution located on different elongate members of the at least some of the plurality of elongate members. The respective intermediate portion of each elongate member of the plurality of elongate members may include a thickness, a front surface and a back surface opposite across the thickness from the front surface, and the respective intermediate portions of the plurality of elongate members may be arranged front surface-toward-back surface in a stacked array when the structure is in the delivery configuration. The structure may include a proximal portion and a distal portion, each of the proximal and the distal portions including a respective part of each of the plurality of elongate members, the proximal portion of the structure forming a first domed shape and the distal portion of the structure forming a second domed shape when the structure is in the deployed configuration.
The input-output device system may include the catheter device, the catheter device including a structure that includes a proximal portion and a distal portion. The structure may be selectively moveable between a delivery configuration in which the structure is sized for percutaneous delivery to the bodily cavity, the structure arranged to be advanced distal portion first into the bodily cavity, and a deployed configuration in which the structure is sized too large to be delivered percutaneously to the bodily cavity. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration, the proximal and the distal portions of the structure arranged in a clam shell configuration when the structure is in the deployed configuration.
The input-output device system may include the catheter device and each transducer in the plurality of transducers of the catheter device may be spaced apart from each of the other transducers in the distribution.
The transducer sets in the second sequence may include all of the transducers in the transducer sets in the group. The transducer sets in the second sequence may collectively include only transducers in the group of transducer sets. The transducer sets in the second sequence may be the transducer sets in the group, but in a different order. The first sequence may indicate at least (a) a selection of a first transducer in a first transducer set in the group followed by a selection of second and third transducers in a second transducer set in the group, (b) a selection of fourth and fifth transducers in a third transducer set in the group followed by a selection of a sixth transducer in a fourth transducer set in the group, or both (a) and (b).
The second sequence may indicate at least (a) an order of activation of a first transducer in a first transducer set in the second sequence followed by activation of second and third transducers in a second transducer set in the second sequence, (b) an order of activation of fourth and fifth transducers in a third transducer set in the second sequence followed by activation of a sixth transducer in a fourth transducer set in the second sequence, or both (a) and (b).
The program may further include display instructions configured to cause the input-output device system to display a graphical representation of at least a portion of the catheter device. The graphical representation may include a first transducer graphical element, a second transducer graphical element, and a between graphical element, the first transducer graphical element associated with a first transducer of the plurality of transducers of the catheter device, the second transducer graphical element associated with a second transducer of the plurality of transducers of the catheter device different than and spaced apart from the first transducer, and the between graphical element associated with a region of space between the first transducer and the second transducer, the region of space not including any transducer. The first sequence may indicate at least a selection of (a) the first transducer graphical element, (b) the second transducer graphical element, (c) the between graphical element, or a combination or subcombination of (a), (b), and (c) as at least part of the selecting of the transducer sets in the group.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The data processing device system is configured by the program at least to receive from the input-output device system a first sequence of transducer sets selected from a plurality of transducers of a catheter device, the plurality of transducers arranged in a distribution, the plurality of transducers positionable in a bodily cavity, the transducer sets in the first sequence forming a group of transducer sets, each of the transducer sets in the group including at least one of the plurality of transducers. The data processing device system is configured by the program at least to generate, in response to receiving at least part of the first sequence, a second sequence of transducer sets based at least on an analysis of the transducer sets in the group, the second sequence different than the first sequence, and the transducer sets in the second sequence including transducers in the group. The data processing device system is configured by the program at least to cause sequential activation, initiated during or after completion of the generation of the second sequence, of the transducer sets in the second sequence according to the second sequence, and cause activation of at least one transducer in each of the sequentially activated transducer sets.
In some embodiments, a transducer-activation method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system. The method may be summarized as including receiving from the input-output device system a first sequence of transducer sets selected from a plurality of transducers of a catheter device, the plurality of transducers arranged in a distribution, the plurality of transducers positionable in a bodily cavity. The transducer sets in the first sequence form a group of transducer sets, each of the transducer sets in the group including at least one of the plurality of transducers. The method includes generating, in response to receiving at least part of the first sequence, a second sequence of transducer sets based at least on an analysis of the transducer sets in the group, the second sequence different than the first sequence, and the transducer sets in the second sequence including transducers in the group. The method includes causing sequential activation, initiated during or after completion of the generation of the second sequence, of the transducer sets in the second sequence according to the second sequence, and causing activation of at least one transducer in each of the sequentially activated transducer sets.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The program includes a reception module configured to cause reception from the input-output device system of a first sequence of transducer sets selected from a plurality of transducers of a catheter device. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in a bodily cavity. The transducer sets in the first sequence form a group of transducer sets, each of the transducer sets in the group including at least one of the plurality of transducers. The program includes a generation module configured to, in response to receiving at least part of the first sequence, cause generation of a second sequence of transducer sets based at least on an analysis of the transducer sets in the group, the second sequence different than the first sequence, and the transducer sets in the second sequence including transducers in the group. The program includes an activation module configured to cause sequential activation, initiated during or after completion of the generation of the second sequence according to the generation instructions, of the transducer sets in the second sequence according to the second sequence, the activation module further configured to cause activation of at least one transducer in each of the sequentially activated transducer sets. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program includes reception instructions configured to cause reception of a selection from the input-output device system of an ablation path along which tissue of a bodily cavity is to be ablated by transducers of a catheter device, the selection including an indication of a first order of transducer sets along the selected ablation path, and each of the transducer sets in the first order including at least one of the transducers of the catheter device. The program includes generation instructions configured to, in response to receiving at least part of the selection, cause generation of a second order of transducer sets different than the first order based at least on an analysis of the transducer sets in the first order, the transducer sets in the second order including transducers in the first order. The program includes activation instructions configured to cause ablation, initiated during or after completion of the generation of the second order according to the generation instructions, of the selected ablation path at least by ablation-activating transducers in the second order according to the second order with at least two of the ablation-activating transducers in the second order activated sequentially.
Two or more of the transducer sets in the first order may be sequentially selected. Each of at least some of the transducer sets in the first order may include two or more of the transducers of the catheter device. Each of the at least some of the transducer sets in the first order may include at least one different transducer than each of the other transducer sets in the first order.
The input-output device system may include the catheter device. The transducers of the catheter device may be arranged in a distribution and each of at least some of the transducer sets in the first order may include a respective pair of adjacent ones of the transducers in the distribution. The respective pair of adjacent ones of the transducers of each of the at least some of the transducer sets in the first order may have a same transducer as the respective pair of adjacent ones of the transducers of another of the at least some of the transducer sets in the first order.
The transducer sets in the second order may include all of the transducers in the transducer sets in the first order. The transducer sets in the second order may collectively include only transducers in the first order. The ablation-activating transducers in the second order may not include any transducers not present in the first order. The ablation-activating transducers in the second order may include all of the transducers in the first order.
The program may further include display instructions configured to cause the input-output device system to display a graphical representation of at least a portion of the catheter device. The graphical representation may include a first transducer graphical element, a second transducer graphical element, and a between graphical element, the first transducer graphical element associated with a first transducer of the plurality of transducers of the catheter device, the second transducer graphical element associated with a second transducer of the plurality of transducers of the catheter device different than and spaced apart from the first transducer, and the between graphical element associated with a region of space between the first transducer and the second transducer, the region of space not including any transducer. The selection may indicate at least a selection of (a) the first transducer graphical element, (b) the second transducer graphical element, (c) the between graphical element, or a combination or subcombination of (a), (b), and (c) as at least part of the selecting of the transducer sets in the first order.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The data processing device system is configured by the program at least to receive a selection from the input-output device system of an ablation path along which tissue of a bodily cavity is to be ablated by transducers of a catheter device, the selection including an indication of a first order of transducer sets along the selected ablation path, and each of the transducer sets in the first order including at least one of the transducers of the catheter device. The data processing device system is configured by the program at least to generate, in response to receiving at least part of the selection, a second order of transducer sets different than the first order based at least on an analysis of the transducer sets in the first order, the transducer sets in the second order including transducers in the first order. The data processing device system is configured by the program at least to cause ablation, initiated during or after completion of the generation of the second order, of the selected ablation path at least by ablation-activating transducers in the second order according to the second order with at least two of the ablation-activating transducers in the second order activated sequentially.
In some embodiments, a transducer-activation method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system. The method may be summarized as including receiving a selection from the input-output device system of an ablation path along which tissue of a bodily cavity is to be ablated by transducers of a catheter device, the selection including an indication of a first order of transducer sets along the selected ablation path, and each of the transducer sets in the first order including at least one of the transducers of the catheter device. The method includes generating, in response to receiving at least part of the selection, a second order of transducer sets different than the first order based at least on an analysis of the transducer sets in the first order, the transducer sets in the second order including transducers in the first order. The method includes causing ablation, initiated during or after completion of the generation of the second order, of the selected ablation path at least by ablation-activating transducers in the second order according to the second order with at least two of the ablation-activating transducers in the second order activated sequentially.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The program includes a reception module configured to cause reception of a selection from the input-output device system of an ablation path along which tissue of a bodily cavity is to be ablated by transducers of a catheter device, the selection including an indication of a first order of transducer sets along the selected ablation path, and each of the transducer sets in the first order including at least one of the transducers of the catheter device. The program includes a generation module configured to, in response to receiving at least part of the selection, cause generation of a second order of transducer sets different than the first order based at least on an analysis of the transducer sets in the first order, the transducer sets in the second order including transducers in the first order. The program includes an activation module configured to cause ablation, initiated during or after completion of the generation of the second order according to the generation instructions, of the selected ablation path at least by ablation-activating transducers in the second order according to the second order with at least two of the ablation-activating transducers in the second order activated sequentially. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a method of ablating tissue with a catheter device system is executed. The catheter device system includes an energy source device system, a structure and a plurality of transducers located on the structure. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in an intra-cardiac cavity defined at least in part by a tissue wall. A plurality of pairs of adjacent ones of the transducers in the distribution include at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The method may be summarized as including delivering energy provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution to form at least a first lesion in a first region of the tissue wall over a first time interval. The method includes delivering energy provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution to form at least a second lesion in a second region of the tissue wall over a second time interval. Each of the first and the second lesions block electrophysiological activity in a respective one of the first and the second regions, and a duration of the second time interval is different than a duration of the first time interval.
Each of the transducers in the distribution may include a respective electrode having an energy transmission surface, each energy transmission surface having a respective corresponding size. The respective corresponding size of the energy transmission surface of one of the respective electrodes of the first pair of adjacent ones of the transducers in the distribution may have a different magnitude than the respective corresponding size of the energy transmission surface of one of the respective electrodes of the second pair of adjacent ones of the transducers in the distribution. The method may include determining the duration of the first time interval based at least on the respective corresponding size of the energy transmission surface of each of at least one of the electrodes of the first pair of adjacent ones of the transducers in the distribution, and determining the duration of the second time interval based at least on the respective corresponding size of the energy transmission surface size of each of at least one of the electrodes of the second pair of adjacent ones of the transducers in the distribution. The duration of the second time interval may be determined to be different than the duration of the first time interval at least because of the different magnitude. The respective corresponding size of each energy transmission surface may be a surface area of the energy transmission surface. The surface area of the energy transmission surface of the one of the respective electrodes of the first pair of adjacent ones of the transducers in the distribution may be greater than the surface area of the energy transmission surface of the one of the respective electrodes of the second pair of adjacent ones of the transducers in the distribution, and the duration of the second time interval may be greater than the duration of the first time interval. The duration of the second time interval may be greater than the duration of the first time interval as a result of at least the greater surface area of the energy transmission surface of the one of the respective electrodes of the first pair of adjacent ones of the transducers in the distribution as compared to the surface area of the energy transmission surface of the one of the respective electrodes of the second pair of adjacent ones of the transducers in the distribution. Each of the first and the second pairs of adjacent ones of the transducers in the distribution may have an electrode having a same corresponding size.
The respective transducers of the first pair of adjacent ones of the transducers in the distribution may be spaced with respect to one another by a first distance, and the respective transducers of the second pair of adjacent ones of the transducers in the distribution may be spaced with respect to one another by a second distance longer than the first distance. The duration of the second time interval may be greater than the duration of the first time interval. The duration of the second time interval may be greater than the duration of the first time interval as a result of at least the second distance being longer than the first distance.
A first region of space that is associated with a physical part of the structure may be located between the respective transducers of the first pair of adjacent ones of the transducers in the distribution and a second region of space that is not associated with any physical part of the structure may be located between the respective transducers of the second pair of adjacent ones of the transducers in the distribution. The duration of the second time interval may be greater than the duration of the first time interval. The duration of the second time interval may be greater than the duration of the first time interval as a result of at least the first region of space being associated with a physical part of the structure and the second region of space being not associated with any physical part of the structure. The first lesion may be formed along a first physical path extending across a portion of the first region of space and the second lesion may be formed across a second physical path extending across a portion of the second region of space.
The structure may include a plurality of elongate members. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously delivered to the intra-cardiac cavity and a deployed configuration in which the structure is sized too large to be percutaneously delivered to the intra-cardiac cavity. The respective transducers of the first pair of adjacent ones of the transducers in the distribution may be located on a same elongate member of the plurality of elongate members and the respective transducers of the second pair of adjacent ones of the transducers in the distribution may be located on different elongate members of the plurality of elongate members. The duration of the second time interval may be greater than the duration of the first time interval at least as a result of the respective transducers of the first pair of adjacent ones of the transducers in the distribution being located on a same elongate member of the plurality of elongate members and the respective transducers of the second pair of adjacent ones of the transducers in the distribution being located on different elongate members of the plurality of elongate members.
Each of at least one of the first time interval and the second time interval may be a predetermined time interval.
The method may include delivering a portion of the energy delivered to each transducer of the first pair of adjacent ones of the transducers in the distribution between the transducers of the first pair of adjacent ones of the transducers in the distribution, delivering a portion of the energy delivered to each transducer of the second pair of adjacent ones of the transducers in the distribution between the transducers of the second pair of adjacent ones of the transducers in the distribution, or both. The catheter device system may include an indifferent electrode, and the method may include delivering a respective portion of the energy delivered to each transducer of the first pair of adjacent ones of the transducers in the distribution to the indifferent electrode, delivering a respective portion of the energy delivered to each transducer of the second pair of adjacent ones of the transducers in the distribution to the indifferent electrode, or both.
Each transducer in the distribution may be spaced from each of the other transducers in the distribution. The first pair of adjacent ones of the transducers in the distribution may have a same transducer as the second pair of adjacent ones of the transducers in the distribution.
Various methods may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program is configured to cause the data processing device system to interact, via the input-output device system, with an energy source device system and a plurality of transducers located on a catheter structure. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in an intra-cardiac cavity defined at least in part by a tissue wall. A plurality of pairs of adjacent ones of the transducers in the distribution include at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The program includes first delivery instructions configured to cause a delivery of energy provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution over a first time interval, the energy provided to each of the transducers of the first pair of adjacent ones of the transducers sufficient for forming at least a first lesion in a first region of the tissue wall over the first time interval, the first lesion capable of blocking electrophysiological activity in the first region. The program includes second delivery instructions configured to cause a delivery of energy provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution over a second time interval, the energy provided to each of the transducers of the second pair of adjacent ones of the transducers sufficient for forming at least a second lesion in a second region of the tissue wall over the second time interval, the second lesion capable of blocking electrophysiological activity in the second region. A duration of the second time interval is different than a duration of the first time interval.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program is configured to cause the data processing device system to interact, via the input-output device system, with an energy source device system and a plurality of transducers located on a catheter structure, the plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in an intra-cardiac cavity defined at least in part by a tissue wall. A plurality of pairs of adjacent ones of the transducers in the distribution includes at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The data processing device system is configured by the program at least to cause a delivery of energy provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution over a first time interval, the energy provided to each of the transducers of the first pair of adjacent ones of the transducers sufficient for forming at least a first lesion in a first region of the tissue wall over the first time interval, the first lesion capable of blocking electrophysiological activity in the first region; and cause a delivery of energy provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution over a second time interval, the energy provided to each of the transducers of the second pair of adjacent ones of the transducers sufficient for forming at least a second lesion in a second region of the tissue wall over the second time interval, the second lesion capable of blocking electrophysiological activity in the second region. A duration of the second time interval is different than a duration of the first time interval.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The program is configured to cause the data processing device system to interact, via the input-output device system, with an energy source device system and a plurality of transducers located on a catheter structure. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in an intra-cardiac cavity defined at least in part by a tissue wall. A plurality of pairs of adjacent ones of the transducers in the distribution includes at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The program includes first delivery instructions configured to cause a delivery of energy provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution over a first time interval, the energy provided to each of the transducers of the first pair of adjacent ones of the transducers sufficient for forming at least a first lesion in a first region of the tissue wall over the first time interval, the first lesion capable of blocking electrophysiological activity in the first region. The program includes second delivery instructions configured to cause a delivery of energy provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution over a second time interval, the energy provided to each of the transducers of the second pair of adjacent ones of the transducers sufficient for forming at least a second lesion in a second region of the tissue wall over the second time interval, the second lesion capable of blocking electrophysiological activity in the second region. A duration of the second time interval is different than a duration of the first time interval. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program is configured to cause the data processing device system to interact, via the input-output device system, with an energy source device system and a plurality of transducers located on a structure. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in a bodily cavity defined at least in part by a tissue wall. The program includes reception instructions configured to cause reception of a selection of a group of pairs of adjacent ones of the transducers in the distribution including a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The program includes first delivery instructions configured to cause a first delivery of energy to be provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution, the first delivery of energy configured to occur over a first time interval (a) during the reception of the selection, (b) after a completion of the reception of the selection, or both (a) and (b) to form at least a first lesion in the tissue wall. The program includes second delivery instructions configured to cause a second delivery of energy to be provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution, the second delivery of energy configured to occur over a second time interval (c) during the reception of the selection, (d) after the completion of the reception of the selection, or both (c) and (d) to form at least a second lesion in the tissue wall. A duration of the second time interval is different than a duration of the first time interval.
The input-output device system may include the plurality of transducers. Each of the transducers in the distribution may include a respective electrode having an energy transmission surface, each energy transmission surface having a respective corresponding size. The respective corresponding size of the energy transmission surface of one of the respective electrodes of the first pair of adjacent ones of the transducers in the distribution may have a different magnitude than the respective corresponding size of the energy transmission surface of one of the respective electrodes of the second pair of adjacent ones of the transducers in the distribution. The program may further include first determination instructions configured to cause a determination of the duration of the first time interval based at least on the respective corresponding size of the energy transmission surface of each of at least one of the electrodes of the first pair of adjacent ones of the transducers in the distribution. The program may further include second determination instructions configured to cause a determination of the duration of the second time interval based at least on the respective corresponding size of the energy transmission surface of each of at least one of the electrodes of the second pair of adjacent ones of the transducers in the distribution. The duration of the second time interval may be different than the duration of the first time interval at least because of the different magnitude. The energy transmission surface of the one of the respective electrodes of the first pair of adjacent ones of the transducers in the distribution may have a surface area greater than a surface area of the energy transmission surface of the one of the respective electrodes of the second pair of adjacent ones of the transducers in the distribution and the duration of the second time interval may be greater than the duration of the first time interval. Each of the first and the second pairs of adjacent ones of the transducers in the distribution may have an electrode having a same corresponding size.
The input-output device system may include the plurality of transducers. The respective transducers of the first pair of adjacent ones of the transducers in the distribution may be spaced with respect to one another by a first distance, and the respective transducers of the second pair of adjacent ones of the transducers in the distribution may be spaced with respect to one another by a second distance longer than the first distance. The program may further include first determination instructions configured to cause a determination of the duration of the first time interval based at least on the first distance. The program may further include second determination instructions configured to cause a determination of the duration of the second time interval based at least on the second distance. The duration of the second time interval may be different than the duration of the first time interval at least because the second distance is longer than the first distance. The duration of the second time interval may be greater than the duration of the first time interval.
The input-output device system may include the plurality of transducers. A first region of space that is associated with a physical part of the structure may be located between the respective transducers of the first pair of adjacent ones of the transducers in the distribution and a second region of space that is not associated with any physical part of the structure may be located between the respective transducers of the second pair of adjacent ones of the transducers in the distribution. The program may further include first determination instructions configured to cause a determination of the duration of the first time interval based at least as a result of the first region of space being associated with a physical part of the structure. The program may further include second determination instructions configured to cause a determination of the duration of the second time interval based at least as a result of the second region of space being not associated with any physical part of the structure. The duration of the second time interval may be different than the duration of the first time interval at least because the first region of space is associated with a physical part of the structure and the second region of space is not associated with any physical part of the structure. The duration of the second time interval may be greater than the duration of the first time interval.
The input-output device system may include the plurality of transducers, the plurality of transducers included in a catheter device. The bodily cavity may be an intra-cardiac cavity and each of the first lesion and the second lesion may be an electrophysiological activity conduction block.
The program may further include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include positional determination instructions configured to cause a determination of a spatial relationship between the at least some of the plurality of transducers and the bodily cavity based at least on an analysis of the transducer data. The program may further include duration determination instructions configured to cause a determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on the determined spatial relationship.
The program may further include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include proximity determination instructions configured to cause a determination of a proximity of each of the at least some of the plurality of transducers to an anatomical feature in the bodily cavity based at least on an analysis of the transducer data. The program may include duration determination instructions configured to cause a determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on the determined proximity of each of the at least some of the plurality of transducers to the anatomical feature in the bodily cavity.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include tissue determination instructions configured to cause a determination of a tissue characteristic in the bodily cavity based at least on an analysis of the transducer data. The program may further include duration determination instructions configured to cause a determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on the determined tissue characteristic.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include duration determination instructions configured to cause a determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on an analysis of the transducer data. The first delivery instructions may be configured to cause the first delivery of energy to be provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution during or after completion of the reception of the transducer data, and the second delivery instructions may be configured to cause the second delivery of energy to be provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution during or after completion of the reception of the transducer data.
The first pair of adjacent ones of the transducers in the distribution may have a same transducer as the second pair of adjacent ones of the transducers in the distribution.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program is configured to cause the data processing device system to interact, via the input-output device system, with an energy source device system and a plurality of transducers located on a structure. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in a bodily cavity defined at least in part by a tissue wall. The data processing device system is configured by the program at least to receive a selection of a group of pairs of adjacent ones of the transducers in the distribution including a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The data processing device system is configured by the program at least to cause a first delivery of energy to be provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution, the first delivery of energy configured to occur over a first time interval (a) during the reception of the selection, (b) after a completion of the reception of the selection, or both (a) and (b) to form at least a first lesion in the tissue wall. The data processing device system is configured by the program at least to cause a second delivery of energy to be provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution, the second delivery of energy configured to occur over a second time interval (c) during the reception of the selection, (d) after the completion of the reception of the selection, or both (c) and (d) to form at least a second lesion in the tissue wall, a duration of the second time interval different than a duration of the first time interval.
In some embodiments, a transducer-activation method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system. The data processing device system is further communicatively connected to an input-output device system. The program is configured to cause the data processing device system to interact, via the input-output device system, with an energy source device system and a plurality of transducers located on a structure. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in a bodily cavity defined at least in part by a tissue wall. The method includes receiving a selection of a group of pairs of adjacent ones of the transducers in the distribution including a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The method includes causing a first delivery of energy to be provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution, the first delivery of energy configured to occur over a first time interval (a) during the reception of the selection, (b) after a completion of the reception of the selection, or both (a) and (b) to form at least a first lesion in the tissue wall. The method includes causing a second delivery of energy to be provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution, the second delivery of energy configured to occur over a second time interval (c) during the reception of the selection, (d) after the completion of the reception of the selection, or both (c) and (d) to form at least a second lesion in the tissue wall. A duration of the second time interval is different than a duration of the first time interval.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The program is configured to cause the data processing device system to interact, via the input-output device system, with an energy source device system and a plurality of transducers located on a structure. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in a bodily cavity defined at least in part by a tissue wall. The program includes a reception module configured to cause reception of a selection of a group of pairs of adjacent ones of the transducers in the distribution including a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The program includes a first delivery module configured to cause a first delivery of energy to be provided by the energy source device system to each of the transducers of the first pair of adjacent ones of the transducers in the distribution, the first delivery of energy configured to occur over a first time interval (a) during the reception of the selection, (b) after a completion of the reception of the selection, or both (a) and (b) to form at least a first lesion in the tissue wall. The program includes a second delivery module configured to cause a second delivery of energy to be provided by the energy source device system to each of the transducers of the second pair of adjacent ones of the transducers in the distribution, the second delivery of energy configured to occur over a second time interval (c) during the reception of the selection, (d) after the completion of the reception of the selection, or both (c) and (d), to form at least a second lesion in the tissue wall. A duration of the second time interval is different than a duration of the first time interval. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
A transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program includes reception instructions configured to cause reception of a selection from the input-output device system of at least two of a plurality of transducers of a transducer-based device. The plurality of transducers are arranged in a distribution, and the plurality of transducers are positionable in a bodily cavity. The at least two of the plurality of transducers include at least a first transducer in the distribution and one of a second transducer and a third transducer in the distribution. The program includes activation instructions configured to cause activation via the input-output device system of each of the at least two of the plurality of transducers. The activation of at least the first transducer occurs for a first time interval when the at least two of the plurality of transducers include the second transducer in the distribution, and the activation of at least the first transducer occurs for a second time interval when the at least two of the plurality of transducers include the third transducer in the distribution. Each of the first, the second, and the third transducers are different transducers in the distribution and a duration of the second time interval is different than a duration of the first time interval.
Each of the first, the second and the third transducers may include a respective electrode having an energy transmission surface, each energy transmission surface having a respective corresponding size. The respective corresponding size of the energy transmission surface of the respective electrode of the second transducer may have a different magnitude than the respective corresponding size of the energy transmission surface of the respective electrode of the third transducer. The respective corresponding sizes of the energy transmission surfaces of the respective electrodes of the first, the second, and the third transducers may have different magnitudes. The respective corresponding size of each energy transmission surface may be a surface area of the energy transmission surface. The surface area of the energy transmission surface of the respective electrode of the second transducer may be greater than the surface area of the energy transmission surface of the respective electrode of the third transducer, and the duration of the second time interval may be greater than the duration of the first time interval.
The first transducer may be spaced from the second transducer by a first distance in the distribution and the first transducer may be spaced from the third transducer by a second distance in the distribution, the second distance being longer than the first distance. The duration of the second time interval may greater than the duration of the first time interval.
The input-output device system may include the transducer-based device. The transducer-based device may include a structure on which is located the plurality of transducers arranged in the distribution. A first region of space that is associated with a physical part of the structure may be located between the second transducer and the first transducer, and a second region of space that is not associated with any physical part of the structure may be located between the first transducer and the third transducer. The duration of the second time interval may be greater than the duration of the first time interval.
The input-output device system may include the transducer-based device. The transducer-based device may include a structure on which is located the plurality of transducers arranged in the distribution. The structure may include a plurality of elongate members. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity. Each of the first and the second transducers in the distribution may be located on a first elongate member of the plurality of elongate members, and the third transducer in the distribution may be located on a second elongate member of the plurality of elongate members, the second elongate member different from the first elongate member. The duration of the second time interval may be greater than the duration of the first time interval.
Each of the first transducer and the second transducer may form a first pair of adjacent ones of the transducers in the distribution and each of the first transducer and the third transducer may form a second pair of adjacent ones of the transducers in the distribution. Each of the activation occurring for the first time interval and the activation occurring for the second time interval may be sufficient for ablating tissue in the bodily cavity. The activation occurring for the first time interval may include a delivery of energy between the first and the second transducers in the distribution, and the activation occurring for the second time interval may include a delivery of energy between the first and the third transducers. Each of the activation occurring for the first time interval and the activation occurring for the second time interval may include a delivery of energy between at least the first transducer and an indifferent electrode.
The input-output device system may include at least one display and the program may further include display instructions configured to cause generation of an image including a plurality of graphical elements on a display region of the at least one display. The program may further include second reception instructions configured to cause reception of independent user-selections, via the input-output device system, of each of at least some of the plurality of graphical elements to select at least the first transducer, or the second transducer, or the third transducer in the distribution. The independent user-selections may include an independent user-selection of a single one of the plurality of graphical elements that selects either a first transducer set that includes at least the first and the second transducers in the distribution, or a second transducer set that includes at least the first and the third transducers in the distribution.
The input-output device system may include the transducer-based device. The transducer-based device may include a structure on which is located the plurality of transducers arranged in the distribution. The structure may include a plurality of elongate members, each elongate member of the plurality of elongate members including a proximal end, a distal end and an intermediate portion positioned between the proximal and distal ends. The respective intermediate portion of each elongate member of the plurality of elongate members may include a thickness, a front surface and a back surface opposite across the thickness from the front surface. The structure may be selectively moveable between a delivery configuration in which the respective intermediate portions of the plurality of elongate members are arranged front surface-toward-back surface in a stacked array sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity. The structure may include a proximal portion and a distal portion, each of the proximal and the distal portions including a respective part of each of the plurality of elongate members, the proximal portion of the structure forming a first domed shape and the distal portion of the structure forming a second domed shape when the structure is in the deployed configuration.
The input-output device system may include the transducer-based device. The transducer-based device may include a structure on which is located the plurality of transducers arranged in the distribution. The structure may include a proximal portion and a distal portion. The structure may be selectively moveable between a delivery configuration in which the structure is sized for percutaneous delivery to the bodily cavity, the structure arranged to be advanced distal portion first into the bodily cavity, and a deployed configuration in which the structure is sized too large to be delivered percutaneously to the bodily cavity. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration. The proximal and the distal portions of the structure may be arranged in a clam shell configuration when the structure is in the deployed configuration.
Each of at least one of the first time interval and the second time interval may be a predetermined time interval.
The input-output device system may include a sensing device system operable for detecting temperature at each of a plurality of locations, each of at least two of the plurality of locations at least proximate a respective one of the at least two of the plurality of transducers in the distribution. The program may further include determination instructions configured to cause a determination of at least one of the first and the second time intervals based at least on the detecting temperature at each of at least some of the plurality of locations.
The input-output device system may include a sensing device system operable for detecting an electrical characteristic at each of a plurality of locations, each of at least two of the plurality of locations at least proximate a respective one of the at least two of the plurality of transducers in the distribution. The program may further include determination instructions configured to cause a determination of at least one of the first and the second time intervals based at least on the detected electrical characteristic at each of at least some of the plurality of locations. The electrical characteristic may be a tissue electrical characteristic.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include positional determination instructions configured to cause a determination of spatial relationship between the at least some of the plurality of transducers and the bodily cavity based at least on an analysis of the transducer data. The program may include duration determination instructions configured to cause a determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on the determined spatial relationship.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include proximity determination instructions configured to cause a determination of a proximity of each of the at least some of the plurality of transducers to an anatomical feature in the bodily cavity based at least on an analysis of the transducer data. The program may include duration determination instructions configured to cause a determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on the determined proximity of each of the at least some of the plurality of transducers to the anatomical feature in the bodily cavity.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include tissue determination instructions configured to cause a determination of a tissue characteristic in the bodily cavity based at least on an analysis of the transducer data. The program may include duration determination instructions configured to cause a determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on the determined tissue characteristic.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include duration determination instructions configured to cause a determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on an analysis of the transducer data. The activation instructions may be configured to cause activation of each of the at least two of the plurality of transducers during or after completion of the reception of the transducer data.
The input-output device system may include the transducer-based device. The selection may be a first selection. The first selection may be a selection of the first and second transducers in the distribution, but not the third transducer in the distribution. The reception instructions may be further configured to cause a reception of a second selection from the input-output device system after reception of the first selection and after initiation of the activation of at least the first transducer for the first time interval, the second selection being a selection of at least the third transducer in the distribution.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The data processing device system is configured by the program at least to receive a selection from the input-output device system of at least two of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution, the plurality of transducers positionable in a bodily cavity. The at least two of the plurality of transducers include at least a first transducer in the distribution and one of a second transducer and a third transducer in the distribution. The data processing device system is configured by the program at least to cause activation via the input-output device system of each of the at least two of the plurality of transducers, the activation of at least the first transducer occurring for a first time interval when the at least two of the plurality of transducers include the second transducer in the distribution, and the activation of at least the first transducer occurring for a second time interval when the at least two of the plurality of transducers include the third transducer in the distribution. Each of the first, the second, and the third transducers are different transducers in the distribution and a duration of the second time interval is different than a duration of the first time interval.
In some embodiments, a transducer-activation method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system. The method may be summarized as including receiving a selection from the input-output device system of at least two of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution, the plurality of transducers positionable in a bodily cavity. The at least two of the plurality of transducers include at least a first transducer in the distribution and one of a second transducer and a third transducer in the distribution. The method includes causing activation via the input-output device system of each of the at least two of the plurality of transducers, the activation of at least the first transducer occurring for a first time interval when the at least two of the plurality of transducers include the second transducer in the distribution, and the activation of at least the first transducer occurring for a second time interval when the at least two of the plurality of transducers include the third transducer in the distribution. Each of the first, the second, and the third transducers are different transducers in the distribution and a duration of the second time interval is different than a duration of the first time interval.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The program includes a reception module configured to cause reception of a selection from the input-output device system of at least two of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution, the plurality of transducers positionable in a bodily cavity, the at least two of the plurality of transducers including at least a first transducer in the distribution and one of a second transducer and a third transducer in the distribution. The program includes an activation module configured to cause activation via the input-output device system of each of the at least two of the plurality of transducers, the activation of at least the first transducer occurring for a first time interval when the at least two of the plurality of transducers include the second transducer in the distribution, and the activation of at least the first transducer occurring for a second time interval when the at least two of the plurality of transducers include the third transducer in the distribution. Each of the first, the second, and the third transducers are different transducers in the distribution and a duration of the second time interval is different than a duration of the first time interval. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program includes selection instructions configured to cause reception of a selection from the input-output device system of at least some of a plurality of pairs of adjacent ones of transducers in a distribution of the transducers carried by a transducer-based device. The distribution is positionable in a bodily cavity, and the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution include at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The program includes activation instructions configured to cause activation of each of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The program includes delay instructions configured to cause a delay of the activation of the first pair of adjacent ones of the transducers in the distribution with respect to a starting of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where a respective transducer in each of the first and the second pairs of adjacent ones of the transducers in the distribution forms part of a third pair of adjacent ones of the transducers in the distribution. The first pair, the second pair, and the third pair of adjacent ones of the transducers in the distribution are different pairs of transducers.
The delay instructions may include instructions configured to delay the start of the activation of the first pair of adjacent ones of the transducers in the distribution until after completion of the activation of the second pair of adjacent ones of the transducers in the distribution. The third pair of adjacent ones of the transducers in the distribution may form part of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The program may further include instructions configured to cause a delay of the activation of the third pair of adjacent ones of the transducers in the distribution with respect to a starting of the activation of each of the first pair and the second pair of adjacent ones of the transducers in the distribution in response to the circumstance where the respective transducer in each of the first and the second pairs of adjacent ones of the transducers in the distribution forms part of the third pair of adjacent ones of the transducers in the distribution. The program may further include instructions configured to cause a starting of the activation of the third pair of adjacent ones of the transducers in the distribution after completion of the activation of each of the first and the second pairs of adjacent ones of the transducers in the distribution.
The delay instructions may include instructions configured to delay the starting of the activation of the first pair of adjacent ones of the transducers in the distribution until after expiry of a time interval, the time interval commencing after completing of the activation of the second pair of adjacent ones of the transducers in the distribution.
The third pair of adjacent ones of the transducers in the distribution may form part of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The third pair of adjacent ones of the transducers in the distribution may not form part of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The delay may be a predetermined delay.
The input-output device system may include the transducer-based device. The input-output device system may include an energy source device system connected at least to each of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The activation instructions may include instructions configured to cause energy from the energy source device system to be delivered to each of the at least some of the plurality of pairs of adjacent ones of the transducers, the energy sufficient to cause ablation of tissue in the bodily cavity. The activation instructions may include instructions configured to cause energy from the energy source device system to be delivered to each of the at least some of the plurality of pairs of adjacent ones of the transducers. The input-output device system may further include a sensing device system configured to detect at least one tissue characteristic at respective locations at least proximate each of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution with the energy delivered to each of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The at least one tissue characteristic may include a tissue impedance characteristic.
The activation instructions may include instructions configured to cause activation of at least the first pair of adjacent ones of the transducers in the distribution for a first time interval and cause activation of at least the second pair of adjacent ones of the transducers in the distribution for a second time interval, a duration of the second time interval different than a duration of the first time interval. The first time interval, the second time interval, or each of the first time interval and the second time interval may be a predetermined time interval.
The program may further include instructions configured to cause the input-output device system to display a graphical representation of at least a spatial relationship of at least a portion of the transducers in the distribution, the graphical representation including a plurality of graphical elements including a first graphical element associated with the first pair of adjacent ones of the transducers in the distribution and a second graphical element associated with the second pair of adjacent ones of the transducers in the distribution. The selection instructions may include instructions configured to cause reception of a selection from the input-output device system of at least the first graphical element and the second graphical element.
The bodily cavity may be an intra-cardiac cavity. The input-output device system may include the transducer-based device. The transducer-based device may include a structure having a proximal end, a distal end and a respective length between the proximal end and the distal end. Each of the transducers of at least the first pair, the second pair and the third pair of adjacent ones of the transducers in the distribution may be arranged along the respective length of the structure. The third pair of adjacent ones of the transducers in the distribution may be arranged adjacently between each of the first and the second pairs of adjacent ones of the transducers in the distribution when the respective transducer in each of the first and the second pairs of adjacent ones of the transducers in the distribution forms part of the third pair of adjacent ones of the transducers in the distribution.
The input-output device system may include the transducer-based device. A region of space associated with a physical part of the transducer-based device may be between the transducers of (a) the first pair of adjacent ones of the transducers in the distribution, (b) the second pair of adjacent ones of the transducers in the distribution, or (c) each of (a) and (b). A region of space not associated with any physical part of the transducer-based device may be between the transducers of the third pair of adjacent ones of the transducers in the distribution.
The input-output device system may include the transducer-based device. The transducer-based device may include a structure that includes a plurality of elongate members. The transducers of the first pair of adjacent ones of the transducers in the distribution may be located on a first elongate member of the plurality of elongate members and the transducers of the second pair of adjacent ones of the transducers in the distribution may be located on a second elongate member of the plurality of elongate members, the second elongate member different from the first elongate member. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity. Each elongate member of the plurality of elongate members may include a proximal end, a distal end and an intermediate portion positioned between the proximal and distal ends. The respective intermediate portion of each elongate member of the plurality of elongate members may include a thickness, a front surface, and a back surface opposite across the thickness from the front surface. The respective intermediate portions of the plurality of elongate members may be arranged front surface-toward-back surface in a stacked array when the structure is in the delivery configuration. The structure further may include a proximal portion and a distal portion, each of the proximal and the distal portions including a respective part of each of the plurality of elongate members, the proximal portion of the structure forming a first domed shape and the distal portion of the structure forming a second domed shape when the structure is in the deployed configuration.
The input-output device system may include the transducer-based device. The transducer-based device may include a structure, the structure including a proximal portion and a distal portion. The structure may be selectively moveable between a delivery configuration in which the structure is arranged and sized for percutaneous delivery, distal portion first, into the bodily cavity, and a deployed configuration in which the structure is sized too large to be delivered percutaneously to the bodily cavity. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration. The proximal and the distal portions of the structure may be arranged in a clam shell configuration when the structure is in the deployed configuration.
Each transducer in the distribution may be spaced apart from each of the other transducers in the distribution. The activation instructions may further include instructions configured to cause bipolar activation of at least the first pair of adjacent ones of the transducers in the distribution and the second pair of adjacent ones of the transducers in the distribution. Each of the first and second pairs of adjacent ones of the transducers in the distribution may share a same transducer. Each of the transducers in the first pair of adjacent ones of the transducers in the distribution may be different from each of the transducers in the second pair of adjacent ones of the transducers in the distribution.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The data processing device system is configured by the program at least to receive a selection from the input-output device system of at least some of a plurality of pairs of adjacent ones of transducers in a distribution of the transducers carried by a transducer-based device, the distribution positionable in a bodily cavity, and the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution including at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The data processing device system is configured by the program at least to cause activation of each of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The data processing device system is configured by the program at least to cause a delay of the activation of the first pair of adjacent ones of the transducers in the distribution with respect to a starting of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where a respective transducer in each of the first and the second pairs of adjacent ones of the transducers in the distribution forms part of a third pair of adjacent ones of the transducers in the distribution. The first pair, the second pair, and the third pair of adjacent ones of the transducers in the distribution are different pairs of transducers.
In some embodiments, a transducer-activation method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system. The method may be summarized as including receiving a selection from the input-output device system of at least some of a plurality of pairs of adjacent ones of transducers in a distribution of the transducers carried by a transducer-based device, the distribution positionable in a bodily cavity, and the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution including at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The method includes causing activation of each of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The method includes causing a delay of the activation of the first pair of adjacent ones of the transducers in the distribution with respect to a starting of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where a respective transducer in each of the first and the second pairs of adjacent ones of the transducers in the distribution forms part of a third pair of adjacent ones of the transducers in the distribution. The first pair, the second pair, and the third pair of adjacent ones of the transducers in the distribution are different pairs of transducers.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The program includes a selection module configured to cause reception of a selection from the input-output device system of at least some of a plurality of pairs of adjacent ones of transducers in a distribution of the transducers carried by a transducer-based device, the distribution positionable in a bodily cavity, and the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution including at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The program includes an activation module configured to cause activation of each of the at least some of the plurality of pairs of adjacent ones of the transducers in the distribution. The program includes a delay module configured to cause a delay of the activation of the first pair of adjacent ones of the transducers in the distribution with respect to a starting of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where a respective transducer in each of the first and the second pairs of adjacent ones of the transducers in the distribution forms part of a third pair of adjacent ones of the transducers in the distribution. The first pair, the second pair, and the third pair of adjacent ones of the transducers in the distribution are different pairs of transducers. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program includes selection instructions configured to cause reception of a selection from the input-output device system of at least some of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution positionable in a bodily cavity. The at least some of the plurality of transducer includes a plurality of pairs of adjacent ones of the transducers in the distribution that includes at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The program includes activation instructions configured to cause activation of each of the plurality of pairs of adjacent ones of the transducers in the distribution. The activation instructions include instructions configured to cause the activation of the first pair of adjacent ones of the transducers in the distribution to start after completion of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers in the distribution share a same transducer. The activation instructions include instructions configured to cause at least part of the activation of the first pair of adjacent ones of the transducers in the distribution to occur concurrently with at least part of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers in the distribution do not share a same transducer.
The activation instructions may further include instructions configured to cause the activation of the first pair of adjacent ones of the transducers in the distribution to start after the completion of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where a respective transducer in each of the first and the second pairs of the transducers in the distribution forms part of another pair of the plurality of pairs of adjacent ones of the transducers in the distribution.
The input-output device system may include the transducer-based device. The input-output device system may include an energy source device system connected at least to each of the plurality of pairs of adjacent ones of the transducers in the distribution. The activation instructions may include instructions configured to cause energy from the energy source device system to be delivered to each of the plurality of pairs of adjacent ones of the transducers, the energy sufficient to cause ablation of tissue in the bodily cavity. The activation instructions may include instructions configured to cause energy from the energy source device system to be delivered to each of the plurality of pairs of adjacent ones of the transducers, and the input-output device system may further include a sensing device system arranged to sense at least one tissue characteristic at respective locations at least proximate each of the plurality of pairs of adjacent ones of the transducers in the distribution with the energy delivered to each of the plurality of pairs of adjacent ones of the transducers in the distribution. The at least one tissue characteristic may include a tissue impedance characteristic.
The activation instructions may include instructions configured to cause activation of at least the first pair of adjacent ones of the transducers in the distribution for a first time interval and cause activation of at least the second pair of adjacent ones of the transducers in the distribution for a second time interval, a duration of the second time interval different than a duration of the first time interval. The first time interval, the second time interval, or each of the first time interval and the second time interval may be a predetermined time interval.
The program may further include instructions configured to cause the input-output device system to display a graphical representation of at least a spatial relationship of at least a portion of the transducers in the distribution, the graphical representation including a plurality of graphical elements including a first graphical element associated with the first pair of adjacent ones of the transducers in the distribution and a second graphical element associated with the second pair of adjacent ones of the transducers in the distribution. The selection instructions may include instructions configured to cause reception of a selection from the input-output device system of at least the first graphical element and the second graphical element.
The bodily cavity may be an intra-cardiac cavity. A first region of space may be between the transducers of the first pair of adjacent ones of the transducers in the distribution, the first region of space associated with a physical part of the transducer-based device, and a second region of space may be between the transducers of the second pair of adjacent ones of the transducers in the distribution, the second region of space not associated with any physical part of the transducer-based device.
The transducer-based device may include a structure that includes a plurality of elongate members. The transducers of the first pair of adjacent ones of the transducers in the distribution may be located on a same elongate member of the plurality of elongate members, and the transducers of the second pair of adjacent ones of the transducers in the distribution may be located on different elongate members of the plurality of elongate members.
The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity. Each elongate member of the plurality of elongate members may include a proximal end, a distal end and an intermediate portion positioned between the proximal and distal ends. The respective intermediate portion of each elongate member of the plurality of elongate members may include a thickness, a front surface, and a back surface opposite across the thickness from the front surface, and the respective intermediate portions of the plurality of elongate members may be arranged front surface-toward-back surface in a stacked array when the structure is in the delivery configuration.
The structure may further include a proximal portion and a distal portion, each of the proximal and the distal portions including a respective part of each of the plurality of elongate members. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration.
The transducer-based device may include a structure, the structure including a proximal portion and a distal portion. The structure may be selectively moveable between a delivery configuration in which the structure is arranged and sized for percutaneous delivery, distal portion first, into the bodily cavity, and a deployed configuration in which the structure is sized too large to be delivered percutaneously to the bodily cavity. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration. The proximal and the distal portions of the structure may be arranged in a clam shell configuration when the structure is in the deployed configuration.
Each transducer in the distribution may be spaced apart from each of the other transducers in the distribution. The activation instructions may include instructions configured to cause bipolar activation of at least the first pair of adjacent ones of the transducers in the distribution and the second pair of adjacent ones of the transducers in the distribution.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The data processing device system is configured by the program at least to receive, according to reception instructions, a selection from the input-output device system of at least some of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution positionable in a bodily cavity. The at least some of the plurality of transducers includes a plurality of pairs of adjacent ones of the transducers in the distribution that includes at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The data processing device system is configured by the program at least to cause, according to activation instructions, activation of each of the plurality of pairs of adjacent ones of the transducers in the distribution. The activation instructions further configure the data processing device system to cause the activation of the first pair of adjacent ones of the transducers in the distribution to start after completion of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers in the distribution share a same transducer. The activation instructions further configure the data processing device system to cause at least part of the activation of the first pair of adjacent ones of the transducers in the distribution to occur concurrently with at least part of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers in the distribution do not share a same transducer.
In some embodiments, a transducer-activation method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system. The method may be summarized as including receiving a selection from the input-output device system of at least some of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution positionable in a bodily cavity. The at least some of the plurality of transducers include a plurality of pairs of adjacent ones of the transducers in the distribution that includes at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The method includes causing activation of each of the plurality of pairs of adjacent ones of the transducers in the distribution. The causing of the activation includes causing the activation of the first pair of adjacent ones of the transducers in the distribution to start after completion of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers in the distribution share a same transducer. The causing of the activation includes causing at least part of the activation of the first pair of adjacent ones of the transducers in the distribution to occur concurrently with at least part of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers in the distribution do not share a same transducer.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The program includes a selection module configured to cause reception of a selection from the input-output device system of at least some of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution positionable in a bodily cavity, the at least some of the plurality of transducers including a plurality of pairs of adjacent ones of the transducers in the distribution that includes at least a first pair of adjacent ones of the transducers in the distribution and a second pair of adjacent ones of the transducers in the distribution. The program includes an activation module configured to cause activation of each of the plurality of pairs of adjacent ones of the transducers in the distribution. The activation module is further configured to cause the activation of the first pair of adjacent ones of the transducers in the distribution to start after completion of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers in the distribution share a same transducer. The activation module is further configured to cause at least part of the activation of the first pair of adjacent ones of the transducers in the distribution to occur concurrently with at least part of the activation of the second pair of adjacent ones of the transducers in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers in the distribution do not share a same transducer. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The program includes reception instructions configured to cause reception of a selection from the input-output device system of at least some of a plurality of transducers of a transducer-based device. The plurality of transducers are arranged in a distribution, the distribution positionable in a bodily cavity. The at least some of the plurality of transducers define a continuous series of pairs of the transducers, each pair of transducers in the continuous series having a same transducer as another pair of the transducers in the continuous series. The continuous series includes at least a first pair of the transducers, a second pair of the transducers and a third pair of the transducers. The program includes activation instructions configured to, in response to receiving at least part of the selection, cause activation of the transducers of each pair of the transducers in the continuous series according to a sequence, wherein the activation includes activating the transducers of the first pair after activating at least the transducers of the second and the third pairs according to the sequence. At least the first pair of the transducers is arranged in the continuous series between the second and the third pairs of the transducers in the continuous series.
At least part of the activating of (a) the transducers of the second pair, (b) the transducers of the third pair, or both (a) and (b), may not occur during the activating of the transducers of the first pair. The activating of the transducers of the first pair may occur after completing the activating of: (c) the transducers of the second pair, (d) the transducers of the third pair, or both (c) and (d). The completion of the activating of (c), (d), or both (c) and (d) may be a completion of an ablation of tissue between the respective pair or pairs of the transducers.
The transducers of the pairs of the transducers in the continuous series may be arranged to form a continuous lesion in tissue upon completion of activation of the transducers of the pairs of the transducers in the continuous series.
The activating of the transducers of the first pair may occur after expiry of a time interval, the time interval commencing after completing: (a) the activating of the transducers of the second pair, (b) the activating of the transducers of the third pair, or both (a) and (b). The time interval may be a predetermined time interval. The input-output device system may include a sensing device system. The program may further include instructions configured to cause the sensing device system to detect temperature at each of one or more locations, each of the one or more locations at least proximate a respective one of one or more of the transducers in the distribution, and instructions configured to cause the data processing device system to determine at least an end of the time interval based at least on the detected temperature at each of the one or more locations. The program further may include instructions configured to cause the sensing device system to detect an electrical characteristic at each of one or more locations, each of the one or more locations at least proximate a respective one of one or more of the transducers in the distribution, and instructions configured to cause the data processing device system to determine at least an end of the time interval based at least on the detected electrical characteristic at each of the one or more locations.
The program may further include instructions configured to, in response to receiving at least part of the selection, cause a starting of the activating of at least one transducer of the second pair to occur at a different time than a starting of the activating of at least one transducer of the third pair. The program further may include instructions configured to, in response to receiving at least part of the selection, cause a completion of the activating of at least one transducer of the second pair to occur at a different time than a completion of the activating of at least one transducer of the third pair. The program may further include instructions configured to, in response to receiving at least part of the selection, cause the activating of the transducers of the second pair to occur for a different duration than the activating of the transducers of the third pair.
The first pair of the transducers may have different transducers than the second pair of the transducers, the third pair of the transducers, or both the second pair and the third pair of the transducers. The first pair of the transducers may have different transducers than each of the second and third pairs of the transducers. Each pair of the transducers in the continuous series may have a same transducer as an adjacent pair of the transducers in the continuous series. Each pair of the transducers in the continuous series may be arranged in the continuous series between a respective two adjacent pairs of the transducers in the continuous series.
Each pair of the transducers in the continuous series may be associated with a different respective set of two pairs of the transducers in the continuous series, each of the transducers in each pair of the transducers in the continuous series included in a different pair of the respective set of two pairs of the transducers in the continuous series. Each pair of the transducers in the continuous series may be arranged in the continuous series between the two pairs of the respective set of two pairs of the transducers in the continuous series.
The input-output system may include the transducer-based device. The input-output device system may include an energy source device system connected at least to each of the at least some of the plurality of transducers. The activation instructions may further include instructions configured to cause energy from the energy source device system to be delivered to each of the at least some of the plurality of transducers, the energy sufficient to cause ablation of tissue in the bodily cavity. The energy may be delivered to cause bipolar ablation of the tissue in the bodily cavity. A portion of the energy from the energy source device system delivered to each of the at least some of the plurality of transducers may be transmitted by each of the at least some of the plurality of transducers to an indifferent electrode.
The input-output device system may include an energy source device system connected at least to each pair of the transducers in the continuous series. The activation instructions may further include instructions configured to cause energy from the energy source device system to be delivered to each of the at least some of the plurality of transducers. The input-output device system may further include a sensing device system arranged to sense at least one tissue electrical characteristic at respective locations at least proximate each of the at least some of the plurality of transducers in response to the energy delivered to each of the at least some of the plurality of transducers. The at least one tissue electrical characteristic may include an impedance characteristic of tissue in the bodily cavity.
The program may further include instructions configured to cause the input-output system to display a graphical representation that includes a respective at least one graphical element associated with each pair of the transducers in the continuous series. The program may further include instructions configured to, in response to receiving at least part of the selection, cause the input-output device system to change a visual characteristic of the respective at least one graphical element associated with each pair of the transducers in the continuous series. The program may further include instructions configured to, in response to activating the transducers of each pair of the transducers in the continuous series according to the sequence, cause the input-output device system to change the visual characteristic of the respective at least one graphical element associated with the corresponding pair of the transducers in the continuous series.
The program may further include instructions configured to cause the input-output system to display a graphical representation, the graphical representation including a plurality of transducer graphical elements, each transducer graphical element associated with a respective one of the at least some of the plurality of transducers. The graphical representation may include a first spatial relationship between each of the plurality of transducer graphical elements that is consistent with a second spatial relationship in the distribution between the corresponding ones of the at least some of the plurality of transducers. The graphical representation may include a plurality of between graphical elements, each between graphical element associated with a respective one of the pairs of the transducers in the continuous series, each between graphical element positioned in the graphical representation between a respective pair of the transducer graphical elements corresponding to the transducers of the respective one of the pairs of the transducers in the continuous series.
The bodily cavity may be an intra-cardiac cavity. A region of space may be between two transducers of the at least some of the plurality of transducers in the distribution, the two transducers defining one of the pairs of the transducers in the continuous series, the region of space not associated with any physical part of the transducer-based device.
The input-output system may include the transducer-based device. The transducer-based device may include a structure that includes a plurality of elongate members. The respective transducers of at least one of the pairs of the transducers in the continuous series may be located on a same elongate member of the plurality of elongate members and the respective transducers of at least another of the pairs of the transducers in the continuous series may be located on different elongate members of the plurality of elongate members. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity. Each elongate member of the plurality of elongate members may include a proximal end, a distal end and an intermediate portion positioned between the proximal and distal ends, the respective intermediate portion of each elongate member of the plurality of elongate members including a thickness, a front surface, and a back surface opposite across the thickness from the front surface. The respective intermediate portions of the plurality of elongate members may be arranged front surface-toward-back surface in a stacked array when the structure is in the delivery configuration. The structure may further include a proximal portion and a distal portion, each of the proximal and the distal portions including a respective part of each of the plurality of elongate members. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration.
The input-output system may include the transducer-based device. The transducer-based device may include a structure, the structure including a proximal portion and a distal portion. The structure may be selectively moveable between a delivery configuration in which the structure is sized for percutaneous delivery to the bodily cavity, the structure arranged to be advanced distal portion first into the bodily cavity and a deployed configuration in which the structure is sized too large to be delivered percutaneously to the bodily cavity. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration. The proximal and the distal portions of the structure may be arranged in a clam shell configuration when the structure is in the deployed configuration.
The sequence may be a predetermined sequence. The activation of the transducers of each pair of the transducers in the continuous series may include bipolar activation of the transducers of each pair of the transducers in the continuous series. The pairs of the transducers in the continuous series may be arranged one after another in spatial succession in the distribution. The continuous series may be an ordered list of the pairs of the transducers, the ordered list stored by the memory device system.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected the data processing device system, and a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The data processing device system is configured by the program at least to receive a selection from the input-output device system of at least some of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution, the distribution positionable in a bodily cavity. The at least some of the plurality of transducers define a continuous series of pairs of the transducers, each pair of the transducers in the continuous series having a same transducer as another pair of the transducers in the continuous series. The continuous series include at least a first pair of the transducers, a second pair of the transducers and a third pair of the transducers. The data processing device system is configured by the program at least to cause, in response to receiving at least part of the selection, activation of the transducers of each pair of the transducers in the continuous series according to a sequence. The activation includes activating the transducers of the first pair after activating at least the transducers of the second and the third pairs according to the sequence. At least the first pair of the transducers is arranged in the continuous series between the second and the third pairs of the transducers in the continuous series.
In some embodiments, a transducer-activation method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system. The method may be summarized as including receiving a selection from the input-output device system of at least some of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution, the distribution positionable in a bodily cavity. The at least some of the plurality of transducers define a continuous series of pairs of the transducers, each pair of the transducers in the continuous series having a same transducer as another pair of the transducers in the continuous series. The continuous series includes at least a first pair of the transducers, a second pair of the transducers and a third pair of the transducers. The method includes causing, in response to receiving at least part of the selection, activation of the transducers of each pair of the transducers in the continuous series according to a sequence. The activation includes activating the transducers of the first pair after activating at least the transducers of the second and the third pairs according to the sequence. At least the first pair of the transducers is arranged in the continuous series between the second and the third pairs of the transducers in the continuous series.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The program includes a reception module configured to cause reception of a selection from the input-output device system of at least some of a plurality of transducers of a transducer-based device, the plurality of transducers arranged in a distribution, the distribution positionable in a bodily cavity. The at least some of the plurality of transducers define a continuous series of pairs of the transducers, each pair of the transducers in the continuous series having a same transducer as another pair of the transducers in the continuous series. The continuous series includes at least a first pair of the transducers, a second pair of the transducers and a third pair of the transducers. The program includes an activation module configured to, in response to receiving at least part of the selection, cause activation of the transducers of each pair of the transducers in the continuous series according to a sequence. The activation includes activating the transducers of the first pair after activating at least the transducers of the second and the third pairs according to the sequence. At least the first pair of the transducers is arranged in the continuous series between the second and the third pairs of the transducers in the continuous series. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a method of ablating tissue with a catheter device system is executed. The catheter device system includes an energy source device system and a catheter device. The catheter device includes a plurality of transducers, the plurality of transducers arranged in a distribution, the distribution positionable in a bodily cavity, the bodily cavity defined by at least one tissue wall. The energy source device system is connected to at least some of the plurality of transducers. The method may be summarized as including activating each pair of a plurality of pairs of adjacent transducers in the distribution to cause energy from the energy source device system to be delivered to each of the transducers in each pair of the plurality of pairs of adjacent transducers in the distribution to form a series of ablated regions in the tissue wall, each of the ablated regions in the series positioned one after the other in spatial succession and corresponding to one of the plurality of pairs of adjacent transducers. Each pair of the plurality of pairs of adjacent transducers in the distribution has a same transducer as another pair of the plurality of pairs of adjacent transducers in the distribution, and each pair of the plurality of pairs of adjacent transducers in the distribution is activated in a sequence that causes at least one of the ablated regions in the series to be formed in a region of the tissue wall that has not been previously ablated. The region in the tissue wall that has not been ablated is positioned between at least two previously formed ones of the ablated regions in the series.
The at least one of the ablated regions in the series may be spatially separated from at least one of the at least two previously formed ones of the ablated regions in the series. Each of the ablated regions in the series may be positioned one after the other in spatial succession to form a continuous ablated region. Each of the ablated regions in the series may be adjacently positioned in the series between a respective pair of ablated regions in the series.
Various methods may include combinations and subsets of all those summarized above.
In some embodiments, a catheter device system may be summarized as including an energy source device system, a catheter device including a plurality of transducers, the plurality of transducers arranged in a distribution, the distribution positionable in a bodily cavity, the bodily cavity defined by at least one tissue wall, and the energy source device system connected to at least some of the plurality of transducers. The catheter device system includes a data processing device system connected to at least the energy source device system and configured at least to activate each pair of a plurality of pairs of adjacent transducers in the distribution to cause energy from the energy source device system to be delivered to each of the transducers in each pair of the plurality of pairs of adjacent transducers in the distribution, the energy sufficient to form a series of ablated regions in the tissue wall, each of the ablated regions in the series positioned one after the other in spatial succession and corresponding to one of the plurality of pairs of adjacent transducers. Each pair of the plurality of pairs of adjacent transducers in the distribution has a same transducer as another pair of the plurality of pairs of adjacent transducers in the distribution. Each pair of the plurality of pairs of adjacent transducers in the distribution is activated in a sequence that causes at least one of the ablated regions in the series to be formed in a region of the tissue wall that has not been previously ablated, the region in the tissue wall that has not been ablated being positioned between at least two previously formed ones of the ablated regions in the series.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to at least an energy source device system, which is connected to at least some of a plurality of transducers of a catheter device, the plurality of transducers arranged in a distribution, the distribution positionable in a bodily cavity, the bodily cavity defined by at least one tissue wall. The program includes an activation module configured to cause activation of each pair of a plurality of pairs of adjacent transducers in the distribution to cause energy from the energy source device system to be delivered to each of the transducers in each pair of the plurality of pairs of adjacent transducers in the distribution, the energy sufficient to form a series of ablated regions in the tissue wall, each of the ablated regions in the series positioned one after the other in spatial succession and corresponding to one of the plurality of pairs of adjacent transducers. Each pair of the plurality of pairs of adjacent transducers in the distribution has a same transducer as another pair of the plurality of pairs of adjacent transducers in the distribution. Each pair of the plurality of pairs of adjacent transducers in the distribution is activated in a sequence that causes at least one of the ablated regions in the series to be formed in a region of the tissue wall that has not been previously ablated, the region in the tissue wall that has not been ablated being positioned between at least two previously formed ones of the ablated regions in the series. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a medical device system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system. The input-output device system includes a catheter device, an energy source device system, and a sensing device system. The catheter device includes a structure and a plurality of transducers located on the structure, the plurality of transducers arranged in a distribution, and the plurality of transducers positionable in a bodily cavity. The medical device system includes a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The memory device system further stores target temperature information associated with a respective target temperature for each transducer of a first pair of adjacent ones of the transducers in the distribution, the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution having different values. The program includes energy delivery instructions configured to selectively cause energy from the energy source device system to be delivered to both transducers of the first pair of adjacent ones of the transducers in the distribution. The program includes thermal sensing instructions configured to cause reception of detected temperature information indicating respective temperatures detected by the sensing device system at respective locations at least proximate each of at least some of the plurality of transducers in the distribution. The energy delivery instructions are configured to cause the energy delivered to at least one transducer of the first pair of adjacent ones of the transducers in the distribution to be adjusted based at least on a difference between the respective temperature detected by the sensing device system at the respective location at least proximate a first transducer of the first pair of adjacent ones of the transducers in the distribution and the respective target temperature associated with the first transducer of the first pair of adjacent ones of the transducers in the distribution.
Each of the transducers of the first pair of adjacent ones of the transducers in the distribution may include a respective electrode having an energy transmission surface, each energy transmission surface having a respective corresponding size. The respective corresponding sizes of the respective electrodes of the transducers of the first pair of adjacent ones of the transducers in the distribution may have different magnitudes. The corresponding size of each energy transmission surface may be a surface area of the energy transmission surface.
Each of the transducers of the first pair of adjacent ones of the transducers in the distribution may include a respective electrode having an energy transmission surface. The respective electrode of each of the transducers of the first pair of adjacent ones of the transducers in the distribution may have a different shape.
The energy delivery instructions may be configured to control the energy provided to the at least one transducer of the first pair of adjacent ones the transducers in the distribution to maintain the temperature detected by the sensing device system at the location at least proximate the first transducer of the first pair of adjacent ones of the transducers in the distribution at or near the respective target temperature associated with the first transducer of the first pair of adjacent ones of the transducers in the distribution. The at least one transducer of the first pair of adjacent ones of the transducers in the distribution may include the first transducer of the first pair of adjacent ones of the transducers in the distribution. The at least one transducer of the first pair of adjacent ones of the transducers in the distribution may include a second transducer of the first pair of adjacent ones of the transducers in the distribution. The at least one transducer of the first pair of adjacent ones of the transducers in the distribution may include both transducers of the first pair of adjacent ones of the transducers in the distribution.
The plurality of transducers may be arranged to form a plurality of different pairs of adjacent ones of the transducers in the distribution including the first pair of adjacent ones of the transducers in the distribution and at least a second pair of adjacent ones of the transducers in the distribution. The target temperature information stored by the memory device system may be further associated with a respective target temperature for each transducer of at least the second pair of adjacent ones of the transducers in the distribution. At least one of the respective target temperatures associated with the transducers of the second pair of adjacent ones of the transducers in the distribution may have a different value than each of the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution. The respective target temperatures associated with the transducers of the second pair of adjacent ones of the transducers in the distribution may have different values. Each of the respective target temperatures associated with the transducers of the second pair of adjacent ones of the transducers in the distribution may have a different value than each of the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution. Each of the transducers of the first and the second pairs of adjacent ones of the transducers in the distribution may include a respective electrode having an energy transmission surface, each energy transmission surface having a respective corresponding size. The respective corresponding size of the respective electrode of each of the at least one of the transducers of the first pair of adjacent ones of the transducers in the distribution may have a different magnitude than the respective corresponding size of the respective electrode of each of at least one of the transducers of the second pair of adjacent ones of the transducers in the distribution. The respective electrode of each of the at least one of the transducers of the first pair of adjacent ones of the transducers in the distribution may have a different shape than the respective electrode of each of at least one of the transducers of the second pair of adjacent ones of the transducers in the distribution.
Each transducer in the distribution may be spaced apart from each of the other transducers in the distribution. The target temperature information may include different predetermined values for each of the target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers in the distribution. The program may include positional determination instructions configured to cause a determination of spatial relationship between the transducer(s) that acquired the transducer data and the bodily cavity based at least on an analysis of the transducer data. The program may include target temperature determination instructions configured to cause a determination of a value of each of at least one of the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution based at least on the determined spatial relationship.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers in the distribution. The program may include proximity determination instructions configured to cause a determination of a proximity of each transducer or each of the transducers that acquired the transducer data to an anatomical feature in the bodily cavity based at least on an analysis of the transducer data. The program may include target temperature determination instructions configured to cause a determination of a value of each of at least one of the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution based at least on the determined proximity or proximities to the anatomical feature in the bodily cavity.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers in the distribution. The program may include tissue determination instructions configured to cause a determination of a tissue characteristic in the bodily cavity based at least on an analysis of the transducer data. The program may include target temperature determination instructions configured to cause a determination of a value of each of at least one of the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution based at least on the determined tissue characteristic.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers in the distribution. The program may include target temperature determination instructions configured to cause a determination of a value of each of at least one of the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution based at least on an analysis of the transducer data. The energy delivery instructions may be configured to cause the energy to be delivered to the at least one transducer of the first pair of adjacent ones of the transducers in the distribution during, after completion of, or both during and after completion of the reception of the transducer data.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a medical device system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system. The input-output device system includes a catheter device, an energy source device system, and a sensing device system. The catheter device includes a structure and a plurality of transducers located on the structure, the plurality of transducers arranged in a distribution, and the plurality of transducers positionable in a bodily cavity. The medical device system includes a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The memory device system further stores target temperature information associated with a respective target temperature for each transducer of a first pair of adjacent ones of the transducers in the distribution, the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution having different values. The data processing device system is configured by the program at least to selectively cause energy from the energy source device system to be delivered to both transducers of the first pair of adjacent ones of the transducers in the distribution. The data processing device system is configured by the program at least to receive detected temperature information indicating respective temperatures detected by the sensing device system at respective locations at least proximate each of at least some of the plurality of transducers in the distribution. The data processing device system is configured by the program at least to cause the energy delivered to at least one transducer of the first pair of adjacent ones of the transducers in the distribution to be adjusted based at least on a difference between the respective temperature detected by the sensing device system at the respective location at least proximate a first transducer of the first pair of adjacent ones of the transducers in the distribution and the respective target temperature associated with the first transducer of the first pair of adjacent ones of the transducers in the distribution.
In some embodiments, a method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system. The input-output device system includes a catheter device, an energy source device system, and a sensing device system. The catheter device includes a structure and a plurality of transducers located on the structure, the plurality of transducers arranged in a distribution, the plurality of transducers positionable in a bodily cavity. The method may be summarized as including storing, in the memory device system, target temperature information associated with a respective target temperature for each transducer of a first pair of adjacent ones of the transducers in the distribution, the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution having different values. The method includes selectively causing energy from the energy source device system to be delivered to both transducers of the first pair of adjacent ones of the transducers in the distribution. The method includes receiving detected temperature information indicating respective temperatures detected by the sensing device system at respective locations at least proximate each of at least some of the plurality of transducers in the distribution. The method includes causing the energy delivered to at least one transducer of the first pair of adjacent ones of the transducers in the distribution to be adjusted based at least on a difference between the respective temperature detected by the sensing device system at the respective location at least proximate a first transducer of the first pair of adjacent ones of the transducers in the distribution and the respective target temperature associated with the first transducer of the first pair of adjacent ones of the transducers in the distribution.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The input-output device system includes a catheter device, an energy source device system, and a sensing device system. The catheter device includes a structure and a plurality of transducers located on the structure, the plurality of transducers arranged in a distribution, the plurality of transducers positionable in a bodily cavity. The program includes a storing module configured to store, in the memory device system, target temperature information associated with a respective target temperature for each transducer of a first pair of adjacent ones of the transducers in the distribution, the respective target temperatures associated with the transducers of the first pair of adjacent ones of the transducers in the distribution having different values. The program includes an energy delivery module configured to selectively cause energy from the energy source device system to be delivered to both transducers of the first pair of adjacent ones of the transducers in the distribution. The program includes a thermal sensing module configured to cause reception of detected temperature information indicating respective temperatures detected by the sensing device system at respective locations at least proximate each of at least some of the plurality of transducers in the distribution. The energy delivery module is configured to cause the energy delivered to at least one transducer of the first pair of adjacent ones of the transducers in the distribution to be adjusted based at least on a difference between the respective temperature detected by the sensing device system at the respective location at least proximate a first transducer of the first pair of adjacent ones of the transducers in the distribution and the respective target temperature associated with the first transducer of the first pair of adjacent ones of the transducers in the distribution. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, the input-output device system including a transducer-based device, an energy source device system, and a sensing device system. The transducer-based device includes a structure and a plurality of transducers located on the structure, the plurality of transducers arranged in a distribution, and the plurality of transducers positionable in a bodily cavity. The sensing device system is configured to detect temperature at each of a plurality of locations, one of the plurality of locations at least proximate a first transducer of a pair of the transducers in the distribution. The transducer-activation system includes a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The memory device system further stores information associated with a respective set of one or more target temperatures for each of a number of the transducers in the distribution, the respective set of one or more target temperatures associated with the first transducer of the pair of transducers including a first target temperature and a second target temperature having a different value than the first target temperature. The program includes energy delivery instructions configured to selectively cause energy from the energy source device system to be delivered to each transducer of the pair of the transducers in the distribution. The program includes first adjustment instructions configured to, when the pair of the transducers includes a second transducer different than the first transducer, cause adjustment of the energy delivered from the energy source device system to the first transducer, the second transducer, or both the first transducer and the second transducer of the pair of the transducers in the distribution based at least on a difference between (a) the temperature detected by the sensing device system at the location at least proximate the first transducer of the pair of the transducers, and (b) the first target temperature. The program includes second adjustment instructions configured to, when the pair of the transducers includes a third transducer different than the second transducer and the first transducer, cause adjustment of the energy delivered from the energy source device system to the first transducer, the third transducer, or both the first transducer and the third transducer of the pair of the transducers in the distribution based at least on a difference between (c) the temperature detected by the sensing device at the location at least proximate the first transducer of the pair of the transducers, and (d) the second target temperature.
Each of the first, the second and the third transducers may include a respective electrode having an energy transmission surface, each energy transmission surface having a respective corresponding size. The respective corresponding size of the respective electrode of the second transducer may have a different magnitude than the respective corresponding size of the respective electrode of the third transducer. The respective corresponding sizes of the respective electrodes of the first, the second, and the third transducers may have different magnitudes. The respective corresponding size of each energy transmission surface may be a surface area of the energy transmission surface.
The first transducer may be spaced from the second transducer in the distribution by a first distance and the first transducer may be spaced from the third transducer in the distribution by a second distance, the second distance different than the first distance.
A first region of space that is associated with a physical part of the structure may be located between the first transducer and the second transducer, and a second region of space that is not associated with any physical part of the structure may be located between the first transducer and the third transducer.
The structure may include a plurality of elongate members. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity. Each of the first and the second transducers in the distribution may be located on a first elongate member of the plurality of elongate members, and the third transducer in the distribution may be located on a second elongate member of the plurality of elongate members, the second elongate member different from the first elongate member.
Each of the first transducer and the second transducer may form a first pair of adjacent ones of the transducers in the distribution and each of the first transducer and the third transducer may form a second pair of adjacent ones of the transducers in the distribution. The energy delivered to each transducer of the pair of the transducers in the distribution may be sufficient for ablating tissue in the bodily cavity. A portion of the energy delivered to each transducer of the pair of the transducers in the distribution may be delivered between the transducers of the pair of the transducers in the distribution. The transducer-activation system may further include at least one indifferent electrode positionable to receive a portion of the energy delivered to each transducer of the pair of the transducers in the distribution.
The input-output device system may include at least one display and the program may further include display instructions configured to cause generation of an image including a plurality of graphical elements on a display region of the at least one display, and reception instructions configured to cause reception of independent user-selections, via the input-output device system, of each of at least some of the plurality of graphical elements to select at least the first transducer, the second transducer, or the third transducer in the distribution. The independent user-selections may include an independent user-selection of a single one of the plurality of graphical elements that selects either a first transducer set that includes at least the first and the second transducers in the distribution, or a second transducer set that includes at least the first and the third transducers in the distribution.
The structure may include a plurality of elongate members. Each elongate member of the plurality of elongate members may include a proximal end, a distal end and an intermediate portion positioned between the proximal and distal ends, the respective intermediate portion of each elongate member of the plurality of elongate members including a thickness, a front surface and a back surface opposite across the thickness from the front surface. The structure may be selectively moveable between a delivery configuration in which the respective intermediate portions of the plurality of elongate members are arranged front surface-toward-back surface in a stacked array sized to be percutaneously delivered to the bodily cavity and a deployed configuration in which the structure has a size too large to be percutaneously delivered to the bodily cavity. The structure may include a proximal portion and a distal portion, each of the proximal and the distal portions including a respective part of each of the plurality of elongate members. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration.
The structure may include a proximal portion and a distal portion. The structure may be selectively moveable between a delivery configuration in which the structure is sized for percutaneous delivery to the bodily cavity, the structure arranged to be advanced distal portion first into the bodily cavity, and a deployed configuration in which the structure is sized too large to be delivered percutaneously to the bodily cavity. The proximal portion of the structure may form a first domed shape and the distal portion of the structure may form a second domed shape when the structure is in the deployed configuration. The proximal and the distal portions of the structure may be arranged in a clam shell configuration when the structure is in the deployed configuration.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include positional determination instructions configured to cause a determination of spatial relationship between the at least some of the plurality of transducers and the bodily cavity based at least on an analysis of the transducer data. The program may include target temperature determination instructions configured to cause a determination of a value of the first target temperature, the second target temperature, or both a value of each of the first and the second target temperatures based at least on the determined spatial relationship.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include proximity determination instructions configured to cause a determination of a proximity of each of the at least some of the plurality of transducers to an anatomical feature in the bodily cavity based at least on an analysis of the transducer data. The program may include target temperature determination instructions configured to cause a determination of a value of the first target temperature, the second target temperature, or both a value of each of the first and the second target temperatures based at least on the determined proximity of each of the at least some of the plurality of transducers to the anatomical feature in the bodily cavity.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include tissue determination instructions configured to cause a determination of a tissue characteristic in the bodily cavity based at least on an analysis of the transducer data. The program may include target temperature determination instructions configured to cause a determination of a value of the first target temperature, the second target temperature, or both a value of each of the first and the second target temperatures based at least on the determined tissue characteristic.
The program may include data reception instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers. The program may include target temperature determination instructions configured to cause a determination of a value of the first target temperature, the second target temperature, or both a value of each of the first and the second target temperatures based at least on an analysis of the transducer data. The energy delivery instructions may be configured to selectively cause the energy from the energy source device system to be delivered to each transducer of the pair of transducers in the distribution during or after completion of the reception of the transducer data.
Various systems may include combinations and subsets of all those summarized above.
In some embodiments, a transducer-activation system may be summarized as including a data processing device system, an input-output device system communicatively connected to the data processing device system, the input-output device system including a transducer-based device, an energy source device system, and a sensing device system. The transducer-based device includes a structure and a plurality of transducers located on the structure, the plurality of transducers arranged in a distribution, and the plurality of transducers positionable in a bodily cavity. The sensing device system is configured to detect temperature at each of a plurality of locations, one of the plurality of locations at least proximate a first transducer of a pair of the transducers in the distribution. The transducer-activation system includes a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system. The memory device system further stores information associated with a respective set of one or more target temperatures for each of a number of the transducers in the distribution, the respective set of one or more target temperatures associated with the first transducer of the pair of transducers including a first target temperature and a second target temperature having a different value than the first target temperature. The data processing device system is configured by the program at least to selectively cause energy from the energy source device system to be delivered to each transducer of the pair of the transducers in the distribution. The data processing device system is configured by the program at least to cause, when the pair of the transducers includes a second transducer different than the first transducer, adjustment of the energy delivered from the energy source device system to the first transducer, the second transducer, or both the first transducer and the second transducer of the pair of the transducers in the distribution based at least on a difference between (a) the temperature detected by the sensing device system at the location at least proximate the first transducer of the pair of the transducers, and (b) the first target temperature. The data processing device system is configured by the program at least to cause, when the pair of the transducers includes a third transducer different than the second transducer and the first transducer, adjustment of the energy delivered from the energy source device system to the first transducer, the third transducer, or both the first transducer and the third transducer of the pair of the transducers in the distribution based at least on a difference between (c) the temperature detected by the sensing device at the location at least proximate the first transducer of the pair of the transducers, and (d) the second target temperature.
In some embodiments, a transducer-activation method is executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system. The input-output device system includes a transducer-based device, an energy source device system, and a sensing device system. The transducer-based device includes a structure and a plurality of transducers located on the structure, the plurality of transducers arranged in a distribution, and the plurality of transducers positionable in a bodily cavity. The sensing device system is configured to detect temperature at each of a plurality of locations, one of the plurality of locations at least proximate a first transducer of a pair of the transducers in the distribution. The memory device system further stores information associated with a respective set of one or more target temperatures for each of a number of the transducers in the distribution, the respective set of one or more target temperatures associated with the first transducer of the pair of transducers including a first target temperature and a second target temperature having a different value than the first target temperature. The method may be summarized as including selectively causing energy from the energy source device system to be delivered to each transducer of the pair of the transducers in the distribution. The method includes causing, when the pair of the transducers includes a second transducer different than the first transducer, adjustment of the energy delivered from the energy source device system to the first transducer, the second transducer, or both the first transducer and the second transducer of the pair of the transducers in the distribution based at least on a difference between (a) the temperature detected by the sensing device system at the location at least proximate the first transducer of the pair of the transducers, and (b) the first target temperature. The method includes causing, when the pair of the transducers includes a third transducer different than the second transducer and the first transducer, adjustment of the energy delivered from the energy source device system to the first transducer, the third transducer, or both the first transducer and the third transducer of the pair of the transducers in the distribution based at least on a difference between (c) the temperature detected by the sensing device at the location at least proximate the first transducer of the pair of the transducers, and (d) the second target temperature.
In some embodiments, a computer-readable storage medium system may be summarized as including one or more computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system. The input-output device system includes a transducer-based device, an energy source device system, and a sensing device system. The transducer-based device includes a structure and a plurality of transducers located on the structure, the plurality of transducers arranged in a distribution, and the plurality of transducers positionable in a bodily cavity. The sensing device system is configured to detect temperature at each of a plurality of locations, one of the plurality of locations at least proximate a first transducer of a pair of the transducers in the distribution. The program includes a storage module configured to store, in a memory device system, information associated with a respective set of one or more target temperatures for each of a number of the transducers in the distribution, the respective set of one or more target temperatures associated with the first transducer of the pair of transducers including a first target temperature and a second target temperature having a different value than the first target temperature. The program includes an energy delivery module configured to selectively cause energy from the energy source device system to be delivered to each transducer of the pair of the transducers in the distribution. The program includes a first adjustment module configured to, when the pair of the transducers includes a second transducer different than the first transducer, cause adjustment of the energy delivered from the energy source device system to the first transducer, the second transducer, or both the first transducer and the second transducer of the pair of the transducers in the distribution based at least on a difference between (a) the temperature detected by the sensing device system at the location at least proximate the first transducer of the pair of the transducers, and (b) the first target temperature. The program includes a second adjustment module configured to, when the pair of the transducers includes a third transducer different than the second transducer and the first transducer, cause adjustment of the energy delivered from the energy source device system to the first transducer, the third transducer, or both the first transducer and the third transducer of the pair of the transducers in the distribution based at least on a difference between (c) the temperature detected by the sensing device at the location at least proximate the first transducer of the pair of the transducers, and (d) the second target temperature. In some embodiments, the computer-readable storage medium system is a non-transitory computer-readable storage medium system including one or more non-transitory computer-readable storage mediums storing the program.
Various systems may include combinations and subsets of all the systems summarized above.
Various methods may include combinations and subsets of all the methods summarized above.
It is to be understood that the attached drawings are for purposes of illustrating aspects of various embodiments and may include elements that are not to scale.
In the following description, certain specific details are set forth in order to provide a thorough understanding of various embodiments of the invention. However, one skilled in the art will understand that the invention may be practiced without these details. In other instances, well-known structures (e.g., structures associated with radio-frequency (RF) ablation and electronic controls such as multiplexers) have not been shown or described in detail to avoid unnecessarily obscuring descriptions of various embodiments of the invention.
Reference throughout this specification to “one embodiment” or “an embodiment” or “an example embodiment” or “an illustrated embodiment” or “a particular embodiment” and the like means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” or “in an example embodiment” or “in this illustrated embodiment” or “in this particular embodiment” and the like in various places throughout this specification are not necessarily all referring to one embodiment or a same embodiment. Furthermore, the particular features, structures or characteristics of different embodiments may be combined in any suitable manner to form one or more other embodiments.
It is noted that, unless otherwise explicitly noted or required by context, the word “or” is used in this disclosure in a non-exclusive sense. In addition, unless otherwise explicitly noted or required by context, the word “set” is intended to mean one or more.
Further, the phrase “at least” is used herein at times to emphasize the possibility that other elements can exist besides those explicitly listed. However, unless otherwise explicitly noted (such as by the use of the term “only”) or required by context, non-usage herein of the phrase “at least” does not exclude the possibility that other elements can exist besides those explicitly listed. For example, the phrase, “activation of at least transducer A” includes activation of transducer A by itself, as well as activation of transducer A and activation of one or more other additional elements besides transducer A. In the same manner, the phrase, “activation of transducer A” includes activation of transducer A by itself, as well as activation of transducer A and activation of one or more other additional elements besides transducer A. However, the phrase, “activation of only transducer A” includes only activation of transducer A, and excludes activation of any other transducers besides transducer A.
The word “ablation” as used in this disclosure should be understood to include any disruption to certain properties of tissue. Most commonly, the disruption is to the electrical conductivity and is achieved by heating, which can be generated with resistive or radio-frequency (RF) techniques for example. Other properties, such as mechanical or chemical, and other means of disruption, such as optical, are included when the term “ablation” is used.
The word “fluid” as used in this disclosure should be understood to include any fluid that can be contained within a bodily cavity or can flow into or out of, or both into and out of a bodily cavity via one or more bodily openings positioned in fluid communication with the bodily cavity. In the case of cardiac applications, fluid such as blood will flow into and out of various intra-cardiac cavities (e.g., a left atrium or right atrium).
The words “bodily opening” as used in this disclosure should be understood to include a naturally occurring bodily opening or channel or lumen; a bodily opening or channel or lumen formed by an instrument or tool using techniques that can include, but are not limited to, mechanical, thermal, electrical, chemical, and exposure or illumination techniques; a bodily opening or channel or lumen formed by trauma to a body; or various combinations of one or more of the above. Various elements having respective openings, lumens or channels and positioned within the bodily opening (e.g., a catheter sheath) may be present in various embodiments. These elements may provide a passageway through a bodily opening for various devices employed in various embodiments.
The words “bodily cavity” as used in this disclosure should be understood to mean a cavity in a body. The bodily cavity may be a cavity provided in a bodily organ (e.g., an intra-cardiac cavity of a heart).
The word “tissue” as used in some embodiments in this disclosure should be understood to include any surface-forming tissue that is used to form a surface of a body or a surface within a bodily cavity, a surface of an anatomical feature or a surface of a feature associated with a bodily opening positioned in fluid communication with the bodily cavity. The tissue can include part or all of a tissue wall or membrane that defines a surface of the bodily cavity. In this regard, the tissue can form an interior surface of the cavity that surrounds a fluid within the cavity. In the case of cardiac applications, tissue can include tissue used to form an interior surface of an intra-cardiac cavity such as a left atrium or right atrium. In some embodiments, the word tissue can refer to a tissue having fluidic properties (e.g., blood).
The term “transducer” as used in this disclosure should be interpreted broadly as any device capable of distinguishing between fluid and tissue, sensing temperature, creating heat, ablating tissue, measuring electrical activity of a tissue surface, stimulating tissue, or any combination thereof. A transducer can convert input energy of one form into output energy of another form. Without limitation, a transducer can include an electrode that functions as, or as part of, a sensing device included in the transducer, an energy delivery device included in the transducer, or both a sensing device and an energy delivery device included in the transducer. A transducer may be constructed from several parts, which may be discrete components or may be integrally formed. In this regard, although transducers, electrodes, or both transducers and electrodes are referenced with respect to various embodiments, it is understood that other transducers or transducer elements may be employed in other embodiments. It is understood that a reference to a particular transducer in various embodiments may also imply a reference to an electrode, as an electrode may be part of the transducer as shown, e.g., with
The term “activation” as used in this disclosure should be interpreted broadly as making active a particular function as related to various transducers disclosed in this disclosure. Particular functions can include, but are not limited to, tissue ablation, sensing electrophysiological activity, sensing temperature and sensing electrical characteristics (e.g., tissue impedance). For example, in some embodiments, activation of a tissue ablation function of a particular transducer is initiated by causing energy sufficient for tissue ablation from an energy source device system to be delivered to the particular transducer. Alternatively, in this example, the activation can be deemed to be initiated when the particular transducer causes a temperature sufficient for the tissue ablation due to the energy provided by the energy source device system. Also in this example, the activation can last for a duration of time concluding when the ablation function is no longer active, such as when energy sufficient for the tissue ablation is no longer provided to the particular transducer. Alternatively, in this example, the activation period can be deemed to be concluded when the temperature caused by the particular transducer is below the temperature sufficient for the tissue ablation. In some contexts, however, the word “activation” can merely refer to the initiation of the activating of a particular function, as opposed to referring to both the initiation of the activating of the particular function and the subsequent duration in which the particular function is active. In these contexts, the phrase or a phrase similar to “activation initiation” may be used.
The term “program” in this disclosure should be interpreted as a set of instructions or modules that can be executed by one or more components in a system, such a controller system or data processing device system, in order to cause the system to perform one or more operations. The set of instructions or modules can be stored by any kind of memory device, such as those described subsequently with respect to the memory device system 130 shown in
The word “device” and the phrase “device system” both are intended to include one or more physical devices or sub-devices (e.g., pieces of equipment) that interact to perform one or more functions, regardless of whether such devices or sub-devices are located within a same housing or different housings. In this regard, for example, this disclosure sometimes refers to a “catheter device”, but such catheter device could equivalently be referred to as a “catheter device system”.
In some contexts, the term “adjacent” is used in this disclosure to refer to objects that do not have another substantially similar object between them. For example, object A and object B could be considered adjacent if they contact each other (and, thus, it could be considered that no other object is between them), or if they do not contact each other, but no other object that is substantially similar to object A, object B, or both objects A and B, depending on context, is between them.
Further, the phrase “in response to” commonly is used in this disclosure. For example, this phrase might be used in the following context, where an event A occurs in response to the occurrence of an event B. In this regard, such phrase can include, for example, that at least the occurrence of the event B causes or triggers the event A.
Further still, example methods are described herein with respect to
The data processing device system 110 includes one or more data processing devices that implement or execute, in conjunction with other devices, such as those in the system 100, the methods of various embodiments, including the example methods of
The memory device system 130 includes one or more processor-accessible memory devices configured to store information, including the information needed to execute the methods of various embodiments, including the example methods of
Each of the phrases “processor-accessible memory” and “processor-accessible memory device” is intended to include any processor-accessible data storage device, whether volatile or nonvolatile, electronic, magnetic, optical, or otherwise, including but not limited to, registers, floppy disks, hard disks, Compact Discs, DVDs, flash memories, ROMs, and RAMs. In some embodiments, each of the phrases “processor-accessible memory” and “processor-accessible memory device” is intended to include a non-transitory computer-readable storage medium. And in some embodiments, the memory device system 130 can be considered a non-transitory computer-readable storage medium system.
The phrase “communicatively connected” is intended to include any type of connection, whether wired or wireless, between devices, data processors, or programs in which data may be communicated. Further, the phrase “communicatively connected” is intended to include a connection between devices or programs within a single data processor, a connection between devices or programs located in different data processors, and a connection between devices not located in data processors at all. In this regard, although the memory device system 130 is shown separately from the data processing device system 110 and the input-output device system 120, one skilled in the art will appreciate that the memory device system 130 may be located completely or partially within the data processing device system 110 or the input-output device system 120. Further in this regard, although the input-output device system 120 is shown separately from the data processing device system 110 and the memory device system 130, one skilled in the art will appreciate that such system may be located completely or partially within the data processing system 110 or the memory device system 130, depending upon the contents of the input-output device system 120. Further still, the data processing device system 110, the input-output device system 120, and the memory device system 130 may be located entirely within the same device or housing or may be separately located, but communicatively connected, among different devices or housings. In the case where the data processing device system 110, the input-output device system 120, and the memory device system 130 are located within the same device, the system 100 of
The input-output device system 120 may include a mouse, a keyboard, a touch screen, another computer, or any device or combination of devices from which a desired selection, desired information, instructions, or any other data is input to the data processing device system 110. The input-output device system may include a user-activatable control system that is responsive to a user action. The input-output device system 120 may include any suitable interface for receiving information, instructions or any data from other devices and systems described in various ones of the embodiments. In this regard, the input-output device system 120 may include various ones of other systems described in various embodiments. For example, the input-output device system 120 may include at least a portion a transducer-based device system. The phrase “transducer-based device system” is intended to include one or more physical systems that include various transducers. The phrase “transducer-based device” is intended to include one or more physical devices that include various transducers.
The input-output device system 120 also may include an image generating device system, a display device system, a processor-accessible memory device, or any device or combination of devices to which information, instructions, or any other data is output by the data processing device system 110. In this regard, if the input-output device system 120 includes a processor-accessible memory device, such memory device may or may not form part or all of the memory device system 130. The input-output device system 120 may include any suitable interface for outputting information, instructions or data to other devices and systems described in various ones of the embodiments. In this regard, the input-output device system may include various other devices or systems described in various embodiments.
Various embodiments of transducer-based devices are described herein. Some of the described devices are medical devices that are percutaneously or intravascularly deployed. Some of the described devices are moveable between a delivery or unexpanded configuration (e.g.,
In some example embodiments, the device includes transducers that sense characteristics (e.g., convective cooling, permittivity, force) that distinguish between fluid, such as a fluidic tissue (e.g., blood), and tissue forming an interior surface of the bodily cavity. Such sensed characteristics can allow a medical system to map the cavity, for example using positions of openings or ports into and out of the cavity to determine a position or orientation (e.g., pose), or both of the portion of the device in the bodily cavity. In some example embodiments, the described devices are capable of ablating tissue in a desired pattern within the bodily cavity. In some example embodiments, the devices are capable of sensing characteristics (e.g., electrophysiological activity) indicative of whether an ablation has been successful. In some example embodiments, the devices are capable of providing stimulation (e.g., electrical stimulation) to tissue within the bodily cavity. Electrical stimulation may include pacing.
Transducer-based device 200 can be percutaneously or intravascularly inserted into a portion of the heart 202, such as an intra-cardiac cavity like left atrium 204. In this example, the transducer-based device 200 is part of a catheter 206 inserted via the inferior vena cava 208 and penetrating through a bodily opening in transatrial septum 210 from right atrium 212. In other embodiments, other paths may be taken.
Catheter 206 includes an elongated flexible rod or shaft member appropriately sized to be delivered percutaneously or intravascularly. Various portions of catheter 206 may be steerable. Catheter 206 may include one or more lumens (not shown). The lumen(s) may carry one or more communications or power paths, or both. For example, the lumens(s) may carry one or more electrical conductors 216 (two shown in this embodiment). Electrical conductors 216 provide electrical connections to device 200 that are accessible externally from a patient in which the transducer-based device 200 is inserted.
Transducer-based device 200 includes a frame or structure 218 which assumes an unexpanded configuration for delivery to left atrium 204. Structure 218 is expanded (e.g., shown in a deployed or expanded configuration in
The elongate members 304 are arranged in a frame or structure 308 that is selectively movable between an unexpanded or delivery configuration (e.g., as shown in
The flexible circuit structure 401 can be formed by various techniques including flexible printed circuit techniques. In some embodiments, the flexible circuit structure 401 includes various layers including flexible layers 403a, 403b and 403c (i.e., collectively flexible layers 403). In some embodiments, each of flexible layers 403 includes an electrical insulator material (e.g., polyimide). One or more of the flexible layers 403 can include a different material than another of the flexible layers 403. In some embodiments, the flexible circuit structure 401 includes various electrically conductive layers 404a, 404b and 404c (collectively electrically conductive layers 404) that are interleaved with the flexible layers 403. In some embodiments, each of the electrically conductive layers 404 is patterned to form various electrically conductive elements. For example, electrically conductive layer 404a is patterned to form a respective electrode 415 of each of the transducers 406. Electrodes 415 have respective electrode edges 415-1 that form a periphery of an electrically conductive surface associated with the respective electrode 415.
Electrically conductive layer 404b is patterned, in some embodiments, to form respective temperature sensors 408 for each of the transducers 406 as well as various leads 410a arranged to provide electrical energy to the temperature sensors 408. In some embodiments, each temperature sensor 408 includes a patterned resistive member 409 (two called out) having a predetermined electrical resistance. In some embodiments, each resistive member 409 includes a metal having relatively high electrical conductivity characteristics (e.g., copper). In some embodiments, electrically conductive layer 404c is patterned to provide portions of various leads 410b arranged to provide an electrical communication path to electrodes 415. In some embodiments, leads 410b are arranged to pass though vias (not shown) in flexible layers 403a and 403b to connect with electrodes 415. Although
In some embodiments, electrodes 415 are employed to selectively deliver RF energy to various tissue structures within a bodily cavity (not shown) (e.g., an intra-cardiac cavity). The energy delivered to the tissue structures may be sufficient for ablating portions of the tissue structures. The energy delivered to the tissue may be delivered to cause monopolar tissue ablation, bipolar tissue ablation or blended monopolar-bipolar tissue ablation by way of non-limiting example. In some embodiments, each electrode 415 is employed to sense an electrical potential in the tissue proximate the electrode 415. In some embodiments, each electrode 415 is employed in the generation of an intra-cardiac electrogram. In some embodiments, each resistive member 409 is positioned adjacent a respective one of the electrodes 415. In some embodiments, each of the resistive members 409 is positioned in a stacked or layered array with a respective one of the electrodes 415 to form a respective one of the transducers 406. In some embodiments, the resistive members 409 are connected in series to allow electrical current to pass through all of the resistive members 409. In some embodiments, leads 410a are arranged to allow for a sampling of electrical voltage in between each resistive members 409. This arrangement allows for the electrical resistance of each resistive member 409 to be accurately measured. The ability to accurately measure the electrical resistance of each resistive member 409 may be motivated by various reasons including determining temperature values at locations at least proximate the resistive member 409 based at least on changes in the resistance caused by convective cooling effects (e.g., as provided by blood flow).
Referring to
Transducer-activation device system 322 includes an input-output device system 320 (e.g., from
Transducer-activation device system 322 may also include an energy source device system 340 including one or more energy source devices connected to transducers 306. In this regard, although
In any event, the number of energy source devices in the energy source device system 340 is fewer than the number of transducers in some embodiments. The energy source device system 340 may, for example, be connected to various selected transducers 306 to selectively provide energy in the form of electrical current or power (e.g., RF energy), light or low temperature fluid to the various selected transducers 306 to cause ablation of tissue. The energy source device system 340 may, for example, selectively provide energy in the form of electrical current to various selected transducers 306 and measure a temperature characteristic, an electrical characteristic, or both at a respective location at least proximate each of the various transducers 306. The energy source device system 340 may include as its energy source devices various electrical current sources or electrical power sources. In some embodiments, an indifferent electrode 326 is provided to receive at least a portion of the energy transmitted by at least some of the transducers 306. Consequently, although not shown in
It is understood that input-output device system 320 may include other systems. In some embodiments, input-output device system 320 may optionally include energy source device system 340, transducer-based device 300 or both energy source device system 340 and transducer-based device 300 by way of non-limiting example. Input-output device system 320 may include the memory device system 330 in some embodiments.
Structure 308 can be delivered and retrieved via a catheter member, for example a catheter sheath 312. In some embodiments, a structure provides expansion and contraction capabilities for a portion of the medical device (e.g., an arrangement, distribution or array of transducers 306). The transducers 306 can form part of, be positioned or located on, mounted or otherwise carried on the structure and the structure may be configurable to be appropriately sized to slide within catheter sheath 312 in order to be deployed percutaneously or intravascularly.
In a manner similar to that described in co-assigned International Application No.: PCT/US2012/022061 and co-assigned International Application No.: PCT/US2012/022062, each of the elongate members 304 is arranged in a fanned arrangement 370 in
The transducers 306 can be arranged in various distributions or arrangements in various embodiments. In this example embodiment, various ones of the transducers 306 are spaced apart from one another in a spaced apart distribution in the delivery configuration shown in
Block 702 includes instructions (e.g., graphical representation instructions or graphical interface instructions provided by a program) configured to cause an input-output device system (e.g., input-output device system 120 or 320) to display a graphical representation of at least a portion of a transducer-based device. For example,
In this embodiment, the graphical representation 500 includes a plurality of graphical elements 501. Each of the graphical elements 501 is respectively associated with a respective one of a plurality of transducer sets. Each respective transducer set includes at least one of a plurality of transducers included as part of the transducer-based device (e.g., transducer-based devices 200, 300, or 400) and each respective transducer set has at least one different transducer than another of the other transducer sets. In this particular embodiment, each respective transducer set has at least one different transducer than each of the others of the other transducer sets.
In this example embodiment, each of at least some of the graphical elements 501 are provided by a respective one of a plurality of transducer graphical elements 502 that include at least a first transducer graphical element 502a, a second transducer graphical element 502b, and a third transducer graphical element 502c (e.g., all the transducer graphical elements collectively referred to as transducer graphical elements 502). In this example embodiment, each transducer graphical element 502 is associated with a single respective transducer of the transducer-based device. In some example embodiments, each transducer graphical element 502 is representative of a respective transducer of the transducer-based device. In some example embodiments, each transducer graphical element 502 is representative of a location or position of a respective transducer of the transducer-based device. In this example embodiment, the graphical representation 500 includes a first spatial relationship between the transducer graphical elements 502 that is consistent with a second spatial relationship between the corresponding transducers associated with the transducer graphical elements 502. An electrocardiogram (ECG/EKG) signal 523 is also shown in the graphical interface of
In this example embodiment, each of at least some of the graphical elements 501 are provided by a respective one of a plurality of between graphical elements 504 including a first between graphical element 504a and a second between graphical element 504b (e.g., all the between graphical elements collectively referred to as between graphical elements 504). In various embodiments, each of the between graphical elements 504 is associated with a set of at least two of the transducers of the transducer-based device. In some example embodiments, each of the between graphical elements 504 is associated with a pair of transducers in the transducer-based device. In some example embodiments, each between graphical element 504 is associated with a region of space between a respective pair of transducers in the transducer-based device. In some example embodiments, each between graphical element 504 is associated with a region of space between a respective pair of adjacent ones of the transducers in the transducer-based device.
In this example embodiment, first transducer graphical element 502a is associated with a first transducer (e.g., first transducer 306a) of the transducer-based device, second transducer graphical element 502b associated with a second transducer (e.g., second transducer 306b) of the transducer-based device, and third transducer graphical element 502c associated with a third transducer (e.g., third transducer 306c) of the transducer-based device. In this example embodiment, the first between graphical element 504a is associated with a first region of space that is between the first and the second transducers and the second between graphical element 504b is associated with a second region of space that is between the second and the third transducers. In this illustrated embodiment, the first region of space is a region of space that is not associated with any physical part of the transducer-based device (e.g., first region of space 350) and the second region of space is a region of space that is associated with a physical part of the transducer-based device (e.g., second region of space 360). In this example embodiment, each of the first and the second between graphical elements 504a, 504b is associated with a region of space that does not include a transducer of the transducer-based device. In this example embodiment, each of the first and the second between graphical elements 504a, 504b is associated with a region of space that does not include any transducer. It is understood that a “region of space” need not be a vacant space but can include physical matter therein.
In this example embodiment, the second transducer graphical element 502b is depicted in a first direction (e.g., represented by arrow 506a) from the first transducer graphical element 502a, and the first between graphical element 504a is positioned between the second and the first transducer graphical elements 502b, 502a in the graphical representation. In this example embodiment, the third transducer graphical element 502c is depicted in a second direction (e.g., represented by arrow 506b) from the second transducer graphical element 502b, and the second between graphical element 504b is positioned between the second and the third transducer graphical elements 502b, 502c. In this example embodiment, the first and the second directions are non-parallel to each other. In this example embodiment, the first between graphical element 504a is formed, at least in part, at a location in the graphical representation intersected by the first direction from the first graphical transducer element 502a and the second between graphical element 504b is formed, at least in part at a location in the graphical representation intersected by the second direction from the second transducer graphical element 502b. In other example embodiments, other spatial relationships exist between the transducer graphical elements 502 and the between graphical elements 504 in the graphical representation. It is understood that arrows 506a, 506b do not form part of the graphical representation in this embodiment.
In this example embodiment, each of the between graphical elements 504 includes a first end 507 (only one called out), a second end 508 (only one called out) and an elongate portion 509 (only one called out) extending between the first and the second ends 507, 508. The transducer graphical elements 502, the between graphical elements 504, or both may have different sizes, shapes or forms than those shown in the illustrated embodiment. In some embodiments, different ones of the transducer graphical elements 502 may be depicted with different shapes, sizes or forms in the graphical representation. In some embodiments, different ones of the between graphical elements 504 may be depicted with different shapes, sizes or forms in the graphical representation. In this embodiment, the respective elongate portion 509 of the first between graphical element 504a is depicted extending along the first direction (e.g., again represented by arrow 506a) and the respective elongate portion 509 of the second between graphical element 504b is depicted extending along the second direction (e.g., again represented by arrow 506b). In this example embodiment the first direction is depicted generally orthogonal to the second direction in the three-dimensional graphical representation. Other orientations between the first and the second direction are possible in other embodiments. For example,
In a manner similar to the embodiment of
Referring back to
In this example embodiment, a portion of each of the rows 510 corresponds to regions of space not associated with any physical portion of the transducer-based device (e.g., regions of space 350 between adjacent ones of the elongate members 304). In other example embodiments, different numbers of transducer graphical elements 502 and different numbers and spatial arrangements of between graphical elements 504 may be depicted in the graphical representation. In other example embodiments, different numbers and spatial arrangements of rows 510 and columns 512 may be depicted in the graphical representation. In various embodiments, each of the between graphical elements (e.g., between graphical elements 504, 604) depicted in the graphical representation are representative of a respective physical path extending between a respective pair of transducers of the transducer-based device. Each of the physical paths may extend over a physical surface of the transducer-based device or over a portion of an opening defined by a physical surface of the transducer-based device. In the embodiment shown in
Referring back to
The graphical interface of
Selection menu 515 provides various selection boxes 520 that can control mouse drag functions between rotating and panning modes. A rotating mode may be advantageously used for manipulation of a three-dimensional representation of the transducer-based device to allow for viewing a portion of the three-dimensional representation that was not previously viewable. Selection menu 515 includes a plurality of selection boxes 522 that allow for variations in the viewable content of the graphical representation. In this embodiment, a selection box 522 allows for the selective inclusion in the graphical representation of graphical elements associated with various anatomical features. In some example embodiments, the graphical elements associated with the anatomical features are selectable from a menu and may be tailored to a particular procedure in which the transducer-based device is employed. Various ones of the selection boxes 522 allow for selective inclusions of the transducer graphical elements 502 (e.g., indicated as “Electrodes” in this illustrated embodiment) and the selective inclusion of the between graphical elements 504 (e.g., indicated as “Segments” in this illustrated embodiment). In this embodiment, a selection box 522 allows for the selective inclusion in the graphical representation of graphical elements associated with lesions which may be of particular interest in embodiments in which various transducers of the transducer based-device ablate tissue to form the lesions therein.
In this example embodiment, a selection box 522 allows for the selective inclusion of identification labels 513 (e.g., indicated as “Labels” in this illustrated embodiment). In this example embodiment, each of the identification labels 513 is employs an alpha-numeric format including a letter representative of the column 512 in which a corresponding transducer graphical element is located and a number representative of a location of the transducer graphical element 502 in the corresponding column 514. Other identification schemes may be employed in other embodiments.
Having described examples of the graphical representation displayed according to the instructions of block 702 in
In this regard, the selection according to the instructions of block 710 includes, in some embodiments, multiple constituent or sub-selections (although in other embodiments, the selection according to the instructions of block 710 includes only a single selection). For instance, in some embodiments, block 710 includes selection instructions configured to cause, due to execution of the selection instructions by the data processing device system (e.g., exemplified by data processing device systems 110 or 310), selection of a graphical element. In some embodiments, such selection instructions include a first group of instructions configured to cause the data processing device system to receive or process, via the input-output device system, a user instruction to select a graphical element. In some of these embodiments, such selection instructions also include a second group of instructions configured to cause the data processing device system to perform its own selection of the graphical element in response to receiving the user instruction. For instance, the user instruction to select the graphical element might originate from a user clicking a mouse button (e.g., a first constituent selection) while a cursor is above a user-selected graphical element. In this case, the first group of instructions could configure the data processing device system to recognize this user instruction when it is received via the data input-output device system as a user instruction to select the user-selected graphical element below the cursor at the time of the mouse-button click. In some embodiments, the second group of instructions may configure the data processing device system, in response to the first group of instructions recognizing this user instruction, to perform its own selection (e.g., a second constituent selection) of the user-selected graphical element at least by causing, via the input output device system, the display of the user-selected graphical element to change one or more visual characteristics of the user-selected graphical element. Accordingly, the selection according to the instructions of block 710 may be deemed, in some embodiments, to involve a first, user-based constituent selection and a second, machine-based or automatic constituent selection triggered by the user-based constituent selection.
Although a mouse-click was provided above as an example of a user-based constituent selection, and the changing of a visual characteristic of the user-selected graphical element was provided as an example of a machine-based constituent selection, it should be noted, however, that any form of user-based selection or machine-based selection of a graphical element known in the art can be used. In this regard, direct interaction with a graphical element itself (e.g., by way of a mouse click on the graphical element) is not required to directly select the graphical element or its corresponding transducer. For example, a user might type a unique identifier associated with a graphical element or transducer via a keyboard, which can cause direct selection of that graphical element or transducer.
Further, although a user-based constituent selection of a user-selected graphical element followed by a machine-based constituent selection of that user-selected graphical element was provided above as an example of constituent selections involved with block 710, it should be noted that a user-based constituent selection of a first user-selected graphical element can also cause a machine-based constituent selection of a second, different, non-user-selected graphical element. For example, a user-performed mouse-click while the mouse cursor is above a user-selected between-graphical element 504 (e.g., a user-based constituent selection) can cause, possibly among other things, a machine-based constituent selection of the non-user-selected transducer graphical elements 502 at each end of the user-selected between graphical element 504. In this regard, the phrase, “user-selected”, when used herein to describe a selected graphical element (e.g., a transducer graphical element or a between graphical element), is intended to refer to a graphical element directly selected by a user, as opposed to a non-user-selected graphical element, which is a machine-selected graphical element that is machine-selected either in response to no user instruction to select any graphical element or in response to a user-instruction to select a user-selected graphical element different than the machine-selected graphical element. In cases where a user selection of a user-selected graphical element causes a machine-selection of a different graphical element, it can be said that the different graphical element is indirectly selected by the user.
Further still, although a user-based constituent selection followed by a machine-based constituent selection was provided above as an example of constituent selections involved with block 710, it should be noted that any number of constituent selections, whether user-based or machine-based, can be involved with block 710. For example, depending upon how the user-interface is structured, one or more user-based constituent selections may result in one or more machine-based constituent selections. For instance, multiple user gestures (e.g., a double-fingered gesture on a touch screen, a mouse click-drag-and-release sequence, or other multiple user-gesture technique) might be required to identify a particular user-selected graphical element in order to cause the data processing device system to change the visual characteristics of (or provide another form of selection of) the particular user-selected graphical element. For another example, multiple user-based constituent selections might be a mouse click-and-hold followed by a dragging of a cursor to expand a selection box originating from the initial mouse click location, followed by a releasing of the mouse button to define the final size of the selection box. This initial user-based selection (comprised of the multiple user-based constituent selections) could be recognized by the data processing device system according to the above-discussed first group of instructions, and cause multiple machine-based or automatic constituent selections performed by the data processing device system according to the above-discussed second group of instructions. For instance, these multiple machine-based or automatic constituent selections could include a first constituent selection by the data processing device system of all graphical elements residing within the selection box, followed by a second constituent selection of only those graphical elements deemed to reside within the selection box whose corresponding transducers have been deemed acceptable for concurrent selection (see, e.g., the discussions below regarding block 707 in
Further still, although one or more user-based constituent selections followed by one or more machine-based constituent selections was provided above as an example of constituent selections involved with block 710, it should be noted that block 710 might not involve any user-based constituent selections. For example, graphical element selection according to block 710 might occur based upon data received from transducers, and this data might result in one or more machine-based or automatic constituent selections performed by the data processing device system.
It should be noted that, whenever a selection of a graphical element is discussed herein, such selection, in some embodiments, can include the above-discussed constituent selections. However, the above-discussed constituent selections are not limited to just selections of graphical elements and can apply to any selection described herein. For example, one or more user-based constituent selections of a user-selected graphical element can lead to one or more machine-based constituent selections of the user-selected graphical element or some other graphical element(s), which can lead to one or more machine-based selections of one or more transducers corresponding to the machine-selected graphical elements, the machine-based selection(s) of the one or more transducers possibly causing an activation of the one or more transducers. For another example, one or more user-based constituent selections of a user-selected graphical element can lead to one or more machine-based constituent selections of one or more data objects associated with the user-selected graphical element, one or more other associated graphical elements, one or more transducers associated with the user-selected graphical element, or one or more other objects associated with the user-selected graphical element, such as for purposes of viewing or changing properties of the one or more data objects or causing an activation based upon information provided by the one or more data objects. It should also be noted that the above-discussion regarding block 710 and user and machine based selections and constituent selections may apply, in some embodiments, to block 710 in
In view of the above-discussion regarding selection types involved with block 710, in some embodiments, the instructions of block 710 are provided in a program that includes instructions configured to cause the data processing device system to receive a selection from the input-output device system of a transducer graphical element (e.g., transducer graphical element 502 or 602).
The selection of one or more graphical elements according to instructions of block 710 in
In some embodiments, the program can include activation instructions (e.g., in accordance with block 712) configured to, in response to receiving the selection of a transducer graphical element (e.g., transducer graphical element 502, 602), cause, via the input-output device system, activation of the respective transducer of the transducer-based device corresponding to the selected transducer graphical element. In various embodiments, the instructions configured to activate the respective transducer corresponding to the selected transducer graphical element include instructions that are configured to cause energy from an energy source device system (e.g., energy source device system 340) to be delivered to the respective transducer. In some embodiments, a sensing device system (e.g., provided at least in part by a number of the transducers) is arranged to sense at least one tissue electrical characteristic (e.g., tissue impedance) at a respective location at least proximate the respective transducer corresponding to the selected transducer graphical element with the energy delivered to the transducer (e.g., in some embodiments, tissue impedance may be measured between transducers on the structure 308 or between a transducer on the structure 308 and the indifferent electrode 326). In some of these various embodiments, the energy is sufficient for ablating tissue (e.g., tissue-ablating energy). In some of these various embodiments, an indifferent electrode (e.g., indifferent electrode 326) is provided (e.g., usually to an external surface of a body) while the transducer-based device is received in a bodily cavity within the body. A portion of the tissue-ablating energy delivered to the respective transducer corresponding to the selected transducer graphical element may be transmitted from the respective transducer to the indifferent electrode in a process typically referred to as monopolar ablation. In some embodiments, the instructions of block 712 that are configured to activate the respective transducer corresponding to the selected transducer graphical element includes instructions that are configured to cause a sensing device system (e.g., sensing device system 325) to detect electrophysiological activity in an intra-cardiac cavity at a location at least proximate the respective transducer. The detected electrophysiological activity can be displayed as an electrogram via the input-output device system (e.g. electrograms 535 in various ones of
For another example, in some embodiments, the instructions of block 710 are provided in a program that includes selection instructions configured to cause, due to execution of the selection instructions by the data processing device system (e.g., again exemplified by data processing device systems 110 or 310), reception of a selection from the input-output device system of a between graphical element (e.g., between graphical elements 504 or 604). In accordance with the instructions of block 712 the program can include activation instructions configured to, in response to receiving the selection, cause activation, via the input-output device system, of a respective set of two or more of the transducers (e.g., a pair of the transducers in some embodiments) of the transducer-based device corresponding to the between graphical element.
Advantageously, activating a set of two or more of the transducers based on a selection of a single graphical element (e.g., between graphical element 504 or 604) provides for a workflow that is less cumbersome and more expeditious than individually selecting the respective graphical elements (e.g., transducer graphical elements 502 or 602) associated with each transducer of the set of two or more of the transducers, especially when 50, 100, 200 or even over 300 or more transducer graphical elements are provided in the graphical representation. This is even more advantageous, when a single graphical element (e.g., between graphical element 504 or 604) provides additional information (e.g., spatial information) relating each of the transducers in the set of two or more of the transducers. For example, a between graphical element 504 or 604 can indicate a distance between or acceptability-of-activation of transducers of a corresponding transducer pair, and, accordingly, the between graphical element 504 or 604 provides, in some embodiments, information about the corresponding pair of transducers and, thereby, makes the selection process more efficient. In addition, allowing selection of the between-graphical elements for corresponding transducer activation can provide a more intuitive user-interface in certain applications. For example, such an arrangement allows a user to make selections along an ablation path or a path along which data is to be obtained, without having to focus on the transducers required to make that ablation path or acquire that data. The user can, for example, just select a path using between graphical elements (e.g., user-based selection(s)/constituent selection(s)), and the corresponding transducers are automatically selected (e.g., machine-based selection(s)/constituent selection(s)) in response. Since various ones of the between graphical elements need not be tied to any physical portion of the transducer-based device, they can be freely designed to reflect the path (e.g., over tissue or fluid) in which their corresponding transducers will interact when activated (e.g., by causing ablation or gathering data). In this regard, if the between graphical elements are configured to accurately represent their respective path segments in which ablation or data gathering will occur, according to some embodiments, the user can gain an even better understanding of the expected results of activation of the corresponding transducers.
In some of the embodiments where the instructions according to block 712 are configured to cause a data processing device system to activate a respective set of two or more of the transducers, the instructions according to block 712 include instructions that are configured to cause energy from an energy source device system (e.g., energy source device system 340) to be delivered to the respective set of two or more of the transducers. In some embodiments, a sensing device system (e.g., sensing device system 325) is arranged to sense at least one tissue electrical characteristic (e.g., tissue impedance) at respective locations at least proximate each transducer of the respective set of two or more of the transducers with the energy delivered to the respective set of two or more of the transducers (e.g., in some embodiments, tissue impedance may be measured between transducers on the structure 308 or between a transducer on the structure 308 and the indifferent electrode 326). In some embodiments, (a) a portion of the energy delivered to a first transducer of the respective set of two or more of the transducers (e.g., first transducer 306a) is transmitted by the first transducer, (b) a portion of the energy delivered to a second transducer of the respective set of two or more of the transducers (e.g., second transducer 306b) is transmitted by the second transducer, or both (a) or (b). In some of embodiments, (a) a portion of the energy delivered to a first transducer of the respective set of two or more of the transducers (e.g., first transducer 306a) is transmitted by the first transducer to a second transducer of the respective set of two or more of the transducers (e.g., second transducer 306b), (b) a portion of the energy delivered to the second transducer of the respective set of two or more of the transducers is transmitted by the second transducer to the first transducer, or both (a) or (b). In some embodiments, the energy is sufficient for ablating tissue (e.g., tissue ablating energy). In some example embodiments, a selected between graphical element (e.g., between graphical elements 504 or 604) is representative of a physical path extending between a respective pair of the transducers associated with the selected between graphical element and the energy is sufficient for ablating a portion of tissue extending along the physical path. A portion of the tissue-ablating energy may be transmitted between the respective pair of the transducers in a process typically referred to as bipolar ablation. In some embodiments, an indifferent electrode (e.g., indifferent electrode 326) is provided (e.g., usually to an external surface of a body) while the transducer-based device is received in a bodily cavity within the body. Some of the tissue-ablating energy may be transmitted between the respective pair of the transducers while some of the tissue-ablating energy may be transmitted from various ones of the respective pair of the transducers to the indifferent electrode in a process typically referred to as blended monopolar-bipolar ablation. The term “bipolar ablation” as used in this disclosure is to be interpreted broadly to include blended monopolar-bipolar ablation in some embodiments.
In addition to embodiments where the instructions according to block 712 are configured to cause a data processing device system to cause bipolar ablation, the instructions according to block 712, in some embodiments, are configured to cause a data processing device system to cause multi-transducer monopolar ablation with the respective set of two or more of the transducers, e.g., dual monopolar ablation for two transducers, or triple monopolar ablation for three transducers. In such cases, for example, the respective set of two or more of the transducers may be ‘queued’ for monopolar ablation, such that monopolar ablation occurs for each transducer in the respective set of two or more of the transducers within some period of time, but not necessarily at the same time or even contiguously one right after another. In this regard, references herein to the occurrence of monopolar ablation for more than one transducer may include this multi-transducer monopolar ablation according to some embodiments. In addition, any reference herein to the occurrence of bipolar ablation may be replaced with the occurrence of dual monopolar ablation (or other multi-transducer monopolar ablation when more than two transducers are involved), according to some embodiments.
In some embodiments, the instructions, according to block 712, configured to activate the respective set of two or more of the transducers include instructions that are configured to cause a sensing device system to detect electrophysiological activity in an intra-cardiac cavity at each of respective locations at least proximate each of the transducers of the set. The detected electrophysiological activity detected at each of the respective locations can be displayed as an electrogram via the input-output device system (e.g., electrograms 535 shown in various ones of
Having discussed embodiments where blocks 710 and 712 follow block 702 in
Various embodiments can process or analyze the transducer data received by the data processing device system according to the instructions of block 704 in order to, for example, generate and possibly display one or more electrograms, determine the acceptability of selection or activation of particular transducers, generate a map (e.g., a map of anatomical features), determine the status of tissue ablation, or combinations of these tasks. Accordingly, it should be noted that some embodiments need not be limited to any particular form of processing or analysis of the transducer data received by the data processing device system according to the instructions of block 704. In this regard, although various embodiments need not be limited to any particular processing or analysis of the transducer data received according to the instructions of block 704, block 706 of method 700 pertains to some embodiments where the transducer data is analyzed to identify various regions that correspond to at least a portion of one or more anatomical features. For example, according to some embodiments, block 706 includes instructions (e.g., determination or identification instructions included in a program) that are configured to identify various regions 525 (e.g.,
In embodiments such as these, where the transducer-based device is deployed in a bodily cavity (e.g., when the transducer-based device takes the form of a catheter device arranged to be percutaneously or intravascularly delivered to a bodily cavity), it may be desirable to perform various mapping procedures in the bodily cavity. Although these mapping procedures can be implemented according to the instructions of block 706, these mapping procedures can be performed at other times, such as any time during the generation of or after the display of the graphical representation of at least a portion of the transducer-based device (e.g., block 702, 802, or 902). It is noted that in some embodiments, the mapping procedure need not be limited to the mapping of various anatomical landmarks. For example, when the bodily cavity is an intra-cardiac cavity, the mapping procedure may include mapping electrophysiological activity in the intra-cardiac cavity. In some embodiments, the mapping procedure may include mapping varying degrees of contact between various ones of the transducers (e.g., electrodes) and a tissue surface of a bodily cavity into which the transducers are located.
An example of the mapping performed by devices according to various embodiments (such as those represented by block 706 in
In some example embodiments, the mapping is based at least on locating such bodily openings by differentiating between fluid and tissue (e.g., tissue defining a surface of a bodily cavity). There are many ways to differentiate tissue from a fluid such as blood or to differentiate tissue from a bodily opening in case a fluid is not present. Four approaches may include by way of non-limiting example:
1. The use of convective cooling of heated transducer elements by fluid. A slightly heated arrangement of transducers that is positioned adjacent to the tissue that forms the interior surface(s) of a bodily cavity and across the ports of the bodily cavity will be cooler at the areas which are spanning the ports carrying the flow of fluid.
2. The use of tissue impedance measurements. A set of transducers positioned adjacently to tissue that forms the interior surface(s) of a bodily cavity and across the ports of the bodily cavity can be responsive to electrical tissue impedance. Typically, heart tissue will have higher associated tissue impedance values than the impedance values associated with blood.
3. The use of the differing change in dielectric constant as a function of frequency between blood and tissue. A set of transducers positioned around the tissue that forms the interior surface(s) of the atrium and across the ports of the atrium monitors the ratio of the dielectric constant from 1 KHz to 100 KHz. Such can be used to determine which of those transducers are not proximate to tissue, which is indicative of the locations of the ports.
4. The use of transducers that sense force (e.g., force sensors). A set of force detection transducers positioned around the tissue that forms the interior surface of the bodily cavity and across the bodily openings or ports of the bodily cavity can be used to determine which of the transducers are not engaged with the tissue, which is indicative of the locations of the ports.
The graphical interface of
Returning to the specific case of block 706 in
In
Identification of the regions 525 may be motivated for various reasons. For example, in embodiments in which transducers of transducer-based device are activated to treat or diagnose various regions in a bodily cavity, the identification of various regions 525 and their spatial relationship relative to one another may impact the efficacy of the treatment or diagnostic procedure. For example, in situations in which at least some of the transducers of a transducer-based device are employed to ablate various regions within an intra-cardiac cavity (e.g., to treat atrial fibrillation), ablation of a pulmonary vein may result in an undesired condition referred to as pulmonary stenosis. Identification of regions 525c, 525d in the graphical representation may be employed to reduce occurrences of this undesired condition.
In some embodiments, contrary to what is shown in
In any event, regarding block 707 and block 710, concurrent selection of a set of two or more of the transducers in the transducer-based device (e.g., a pair of adjacent transducers 306) is provided in some embodiments for enhanced workflows that are less cumbersome and more expeditious than those associated with non-concurrent selection of each transducer of the set of two or more of the transducers. For example, in some embodiments, a user-based selection of a between graphical element (e.g., between graphical elements 504 or 604) allows for a machine-based concurrent selection of an associated set of two or more transducers in various embodiments.
In this regard, block 707 includes, in some embodiments, identification instructions (e.g., instructions provided in a program) configured to cause identification of which of the respective transducers of each of various sets of two or more of the transducers of a transducer-based device are and which are not acceptable for concurrent selection.
Concurrent selection or non-concurrent selection of the respective transducers of a given one of the sets of two or more of the transducers may be motivated for various reasons. For example, concurrent selection of transducers may lead to a more expeditious workflow that advantageously reduces diagnostic or treatment times. Conditions, however, may not allow for the concurrent selection of the respective transducers of each of various ones of selectable sets of two or more transducers.
For example, if a transducer of a transducer pair is deemed not-activation-ready (e.g., according to the instructions of block 708 or block 804, discussed below), the transducer pair can be deemed, according to the instructions of block 707, to be a transducer set that is not acceptable for concurrent selection. A set of two or more transducers (e.g., a pair of transducers) that is identified (e.g., via instructions of block 708 or block 804, discussed below) as including at least one not-activation-ready transducer of the transducer-based device (e.g., a not-ablation-ready transducer) may, in some embodiments, be deemed, according to the identification instructions of block 707, as a set of two or more of the transducers of a transducer-based device whose respective transducers are not acceptable for concurrent selection. In some embodiments, a set of two or more of the transducers that is identified (e.g., via instructions of block 708 or block 804, discussed below) as not including any not-activation-ready transducer of the transducer-based device (e.g., a not-ablation-ready transducer) may be deemed, according to the identification instructions of block 707, as a set of two or more of the transducers whose respective transducers are acceptable for concurrent selection.
The identification instructions of block 707 need not be limited to causing identification of a set of two or more transducers as acceptable or not acceptable for concurrent selection, and need not be limited to determining the acceptability of concurrency of selection based upon a determination of activation-ready transducers (e.g., via instructions of block 708 or block 804, discussed below). In some embodiments, the identification instructions of block 707 include instructions configured to cause, at least in part, the identification of the respective transducers of each of the sets of two or more transducers which are acceptable for concurrent selection based at least on an analysis of transducer data received in accordance with the instructions of block 704. In other words, acceptability of the concurrency of selection can be determined on a transducer-group basis or on an individual-transducer basis. These differing approaches can lend themselves to different circumstances. For example, in some situations, it may be preferable to determine whether an entire group of transducers is acceptable for concurrent selection, while in other situations, it may be beneficial to know whether individual transducers in each group are acceptable for concurrent selection.
In some embodiments, each of the sets of two or more of the transducers of the transducer-based device including a pair of adjacent transducers that are spaced with respect to one another across a corresponding region of space, each region of space not including any transducer. In some of these embodiments, a determination of whether or not one of these regions of space is acceptable for activation by its corresponding respective transducer pair is used as a basis for determining whether or not the respective transducer pair is acceptable for concurrent selection. For example, if the region of space is deemed to be acceptable for activation by the corresponding respective transducer pair, then the respective transducer pair is identified as being acceptable for concurrent selection in some embodiments. In some embodiments, the regions of space are determined to be acceptable for activation of the corresponding respective transducers according to determination instructions (e.g., according to some embodiments of the instructions of block 708 in
Acceptability of concurrency of selection of transducers or a region of space corresponding to transducers need not based on or solely on a determination of the acceptability of activation of the corresponding transducers (e.g., pursuant to instructions according to block 708 or block 804, discussed below) in some embodiments. In this regard, transducers or regions of space each corresponding to transducers can be deemed to be acceptable or not acceptable for concurrent selection, according to various embodiments of the instructions of block 707, based on any reason which might make it beneficial or not beneficial to concurrently select the corresponding transducers.
In some embodiments, a result of one or more of the identifications according to the instructions of block 707 is the distinguishing display (e.g., by different visual characteristics) of graphical elements associated with transducers identified to be acceptable for concurrent selection as compared to graphical elements associated with transducers identified to be not-acceptable for concurrent selection. In this regard, the instructions according to block 707 include, in some embodiments, instructions configured to cause the graphical representation displayed according to the instructions of block 702 to visually distinguish its graphical elements associated with transducers identified to be acceptable for concurrent selection as compared to graphical elements associated with transducers identified to be not-acceptable for concurrent selection. In this regard, any instructions according to block 707 that affect the appearance of the graphical representation can be considered to be part of block 702 in some embodiments. The same applies to block 708 (with respect to block 702) in
To elaborate with respect to block 702 for example purposes only, various graphical element sets may be displayed by the display instructions of block 702, each graphical element set including one or more graphical elements (e.g., graphical elements 501 or 601) and each graphical element set associated with a respective one of a number of sets of two or more of the transducers (e.g., transducers of transducer-based devices 200, 300 or 400). Method 700 may include instructions (e.g., instructions provided in a program), (not shown) configured to cause graphical representation instructions of block 702 to cause the input-output device system (e.g., input-output device system 120 or 320) to display each of the graphical element sets associated with each of the sets of two or more of the transducers whose respective transducers have been identified (e.g., according to identification instructions associated with block 707) to be acceptable for concurrent selection with a respective set of visual characteristics that distinguishes each of the graphical element sets associated with each of the sets of two or more of the transducers whose respective transducers have been identified to be acceptable for concurrent selection from each of the graphical element sets associated with each of the sets of two or more of the transducers whose respective transducers have been identified to be not acceptable for concurrent selection. Differences in the displayed visual characteristics may include different colors, opacities, hues, intensities, shading, patterns, shapes or the addition or removal of any displayed information suitable for distinguishing a concurrently-selectable transducer set from a not-concurrently-selectable transducer set.
For example, in some embodiments associated with
In various embodiments of
One reason for identifying a transducer set as being not-acceptable for concurrent selection according to the instructions of block 707 is that the transducer set, when activated, could be harmful to an affected region of space. However, other factors may also have a bearing on whether the respective transducers of a particular set of two more of the transducers are deemed concurrently selectable. In addition, combinations of different factors may be considered in the determination of whether the respective transducers of a particular set of two or more of the transducers are, or are not, acceptable for concurrent selection.
By way of a non-limiting example, another reason for determining a transducer set to be not-acceptable for concurrent selection, according to some embodiments of the instructions of block 707, is that transducers in the transducer set are too far apart, such that, for example, activation of the transducers in the set would lead to a result that may be considered ineffective. For example, if a transducer pair is too far apart, ablation performed by the pair might not be able to reliably form an electrophysiological conduction block between them.
The embodiments of
In this illustrated embodiment, graphical representation 500 in
In some example embodiments, the instructions 707 are further configured to cause, at least in part, the identification of the respective transducers of each of the pairs of adjacent ones of the transducers in a distribution which are acceptable for concurrent selection as the respective transducers of each of the plurality of pairs of adjacent ones of the transducers in the distribution having a respective transducer-to-transducer distance that is not greater than a target transducer-to-transducer distance, and cause identification, at least in part, of the respective transducers of each of the pairs of adjacent ones of the transducers in the distribution which are not acceptable for concurrent selection as the respective transducers of each of the plurality of pairs of adjacent ones of the transducers in the distribution having a transducer-to-transducer distance that is greater than the target transducer-to-transducer distance. In embodiments involving relatively low temperature ablations, the target transducer-to-transducer distance might be one-half an electrode width. In embodiments involving relatively higher temperature ablations, larger target transducer-to-transducer distances might be sufficient. In various embodiments, ablation temperatures lower than the thermal coagulation temperature of blood are preferred. Other factors that may impact the target transducer-to-transducer distance might include tissue thickness, tissue type, characteristics of fat layers embedded in the tissue, the blood's susceptibility to forming coagulum, and whether or not a pair of transducers performing the ablation are separated by a physical portion of the transducer-based device, such as by an elongate member 304. In some embodiments, a target transducer-to-transducer distance associated with a particular pair of the transducers is determined or selected to increase a likelihood that a electrophysiological conduction block that blocks electrophysiological activity between the particular pair of transducers will be formed in tissue upon activation of the transducers. In some embodiments, concurrent selection of a pair of transducers whose activation would not likely result in a desired electrophysiological conduction block may be deemed unacceptable according to the instructions of block 707.
It is noted that different target transducer-to-transducer distances may be employed for different pairs of the transducers. For example, a first target transducer-to-transducer distance associated with a pair of transducers spaced with respect to one another over a region of space that includes a physical portion of a structure on which the transducers are located (e.g., structure 308) may be different (e.g., greater) than a second target transducer-to-transducer distance associated with a pair of transducer that are spaced with respect to one another across a region of space that does not include a physical portion of a supporting structure (e.g., structure 308). In the embodiments of
In some particular embodiments, between graphical elements 504 are not displayed between transducer graphical elements 502 arranged in rows 510a and 510b, because the transducer-to-transducer distances of the transducers (e.g., transducers 306) corresponding to these transducer graphical elements 502 in these rows each exceeds a target distance (e.g., in use). Therefore, in some embodiments, it is determined (e.g., according to the instructions of block 707) that the transducers corresponding to the transducer graphical elements 502 along rows 510a and 510b are not acceptable for concurrent selection, which results in the non-display of the corresponding between graphical elements 504. However, between graphical elements 504 are displayed between transducer graphical elements 502 arranged in the other rows (including row 510c), because the transducer-to-transducer distances of the transducers corresponding to these transducer graphical elements 502 in these rows each are within a target distance. Therefore, in some embodiments, it is determined (e.g., according to the instructions of block 707) that the transducers corresponding to the transducer graphical elements 502 along the other rows (besides rows 510a and 510b) are acceptable for concurrent selection, which results in the display of the corresponding between graphical elements 504.
It should be noted that although the embodiments of
Further, in some embodiments, acceptability of concurrency of selection need not be performed on a transducer-pair-basis. For example, in some of these embodiments, a group of three or more transducers that could form one possible ablation path could be evaluated as a group to determine whether all transducers within that group are acceptable for concurrent selection, e.g., to determine whether a possible ablation path is acceptable of activation (e.g., ablation). In this regard, in some embodiments, the instructions of block 707 are configured to cause identification, for each of a plurality of transducer sets of three or more transducers (e.g., each representing a possible ablation path), whether or not all transducers within the corresponding transducer set are acceptable for concurrent selection.
Having discussed the identification of transducer sets that are acceptable and transducer sets that are not acceptable for concurrent selection according to the instructions of block 707, a discussion of some embodiments of graphical element selection and activation according to the instructions of blocks 710 and 712 in
For example, a user might directly select a between graphical element such as a between graphical element 504 or 604 (i.e., the between graphical element is a user-selected between graphical element), which might cause the first selection instructions to cause the data processing device system to (a) perform a machine-selection of the user-selected between graphical element (e.g., by changing its visual characteristics), and (b) perform a machine-selection (or in some embodiments, a concurrent selection) of the transducers in a transducer pair corresponding to the user-selected between graphical element. In some embodiments, the transducer pair is identified to be acceptable for concurrent selection. In some embodiments, the machine-based selection of the transducer pair may lead to an activation (or in some embodiments, a concurrent activation) of the transducers of that pair (e.g., block 712A, discussed below). In some embodiments, including, but not limited to embodiments where the user directly selects a between graphical element (i.e., the between graphical element is user-selected), the machine-selection(s) may or may not include a machine-selection of a transducer graphical element. In some embodiments, the first selection does not include a user-selected transducer graphical element. In some embodiments, including, but not limited to embodiments where the user directly selects a between graphical element, the selection of the at least one graphical element in the first graphical element set according to the instructions of block 710A is a selection, at one time, of each of the at least one graphical element in the first graphical element set. For example, the user directly selects, at one time, a between graphical element via a mouse click with the cursor above the between graphical element, which causes a corresponding machine selection, at one time, of the user-selected between graphical element, e.g., by changing a visual characteristic of the user-selected between graphical element. Although the above-discussion regarding block 710A includes examples involving both a user graphical element selection and a machine graphical element selection, some embodiments involve only a machine graphical element selection at block 710A.
Block 710B includes second selection instructions configured to cause selection (e.g., a second selection as opposed to the first selection discussed above with respect to block 710A) of at least one graphical element in a second graphical element set of the graphical element sets. In some embodiments, the second graphical element set is associated with a second one of the sets of two or more of the transducers whose respective transducers have been identified according to the instructions of block 707 to be not acceptable for concurrent selection, and the second selection instructions are configured to cause non-concurrent selection, in response to the selection of the at least one graphical element in the second graphical element set, of the respective transducers of the second one of the sets of two or more of the transducers. However, identification of the respective transducers as not acceptable for concurrent selection, and non-concurrent selection of the respective transducers are not required in some embodiments. In some embodiments, the selection of the at least one graphical element in the second graphical element set is a selection, over a time interval, of at least two of the graphical elements in the second graphical element set.
For example, a user might directly select a first transducer graphical element such as a first transducer graphical element 502 or 604 (i.e., the first transducer graphical element is a user-selected transducer graphical element), which might cause the second selection instructions to cause the data processing device system to (a1) perform a selection (or machine selection) of the user-selected first transducer graphical element (e.g., by changing its visual characteristics), and (b1) select the transducer corresponding to the user-selected first transducer graphical element. Then, the user might directly select a second transducer graphical element such as a second transducer graphical element 502 or 604 (i.e., the second transducer graphical element is a user-selected transducer graphical element), which might cause the second selection instructions to cause the data processing device system to (a2) perform a selection (or machine selection) of the user-selected second transducer graphical element (e.g., by changing its visual characteristics), and (b2) select the transducer corresponding to the user-selected second transducer graphical element. Accordingly, in some embodiments, the user-selections of the first and second transducer graphical elements over a time interval cause the corresponding machine-selections of the first and second transducer graphical elements over a time interval. In some embodiments, these machine selections (b1) and (b2) of the transducers corresponding to the user-selected first and second transducer graphical elements are non-concurrent selections. In some embodiments, the machine-based selections (b1) and (b2) of the transducers corresponding to the user-selected first and second transducer graphical elements may lead to an activation (or in some embodiments, a non-concurrent activation) of such transducers (e.g., block 712, discussed below).
In some embodiments, the second graphical element set selected according to the instructions of block 710B has a different number of graphical elements than the first graphical element set selected according to the instructions of block 710A. For example, the second graphical element set selected according to the instructions of block 710B could include two transducer graphical elements 502, while the first graphical element set selected according to the instructions of block 710A could include, in some embodiments, only a between graphical element 504 or, in other embodiments, two transducer graphical elements 502 and a between graphical element 504.
Block 712A shown in
In some embodiments, the activation instructions of block 712A include activation instructions configured to, in response to the concurrent selection of the respective transducers of the first one of the sets of two or more of the transducers cause concurrent activation, via the input-output device system (e.g., input-output device system 120 or 320), of each of the respective transducers of the first one of the sets of two or more of the transducers. In some embodiments, the concurrent activation may include monopolar activation of each of the respective transducers of the first one of the sets of two or more of the transducers. In some embodiments, the concurrent activation may include bipolar activation between the respective transducers of the first one of the sets of two or more of the transducers. The monopolar or bipolar activation of the respective transducers of the first one of the sets of two or more of the transducers may include sufficient energy being delivered from an energy source device system (e.g., energy source device system 340) to each of the respective transducers of the first one of the sets of two or more of the transducers, the energy sufficient to cause ablation of tissue in a bodily cavity. In some of these embodiments, conditions allow for the energy to be sufficient to cause an electrophysiological activity conduction block to be formed in the tissue between the respective transducers of the first one of the sets of two or more of the transducers.
In some embodiments, the activation instructions of block 712B include second activation instructions configured to, in response to the non-concurrent selection of the respective transducers of the second one of the sets of two or more of the transducers cause non-concurrent activation, via the input-output device system, of each of the respective transducers of the second one of the sets of two or more of the transducers. In some embodiments, the activation instructions of block 712B include second activation instructions configured to, in response to the non-concurrent selection of the respective transducers of the second one of the sets of two or more of the transducers, preclude bipolar activation, via the input-output device system, between the respective transducers of the second one of the sets of two or more of the transducers. In various embodiments, selection instructions (e.g., the selection instructions of block 808) allow for the concurrent selection of a pair of transducers by the selection of a particular between graphical element 504 made in accordance with various aspects of method 700.
In some embodiments associated with
In some embodiments, a second selection of at least one of the graphical elements 501 in
As stated above, a first spatial relationship between the plurality of transducer graphical elements 502 in the graphical representation of
As discussed above, the selections according to the instructions of blocks 710A and 710B can occur by way of any combination of one or more machine-based constituent selections and, optionally or additionally, user-based constituent selections. In some embodiments, each of the first selection (e.g., according to the instructions of block 710A) and the second selection (e.g., according to the instructions of block 710B) includes a user-selected graphical element 501 selected by a user according to a user instruction (e.g., a user-based constituent selection, as discussed above) to select the user-selected graphical element 501. In some embodiments, the first selection, the second selection, or each of the first selection and the second selection does not include a selection of a user-selected transducer graphical element 502 made in response to a user instruction to select the transducer graphical element. For instance, a user may instruct selection of a between graphical element 504, which can cause a machine-based selection of a pair of transducer graphical elements 502 that correspond to the user-selected between graphical element 504, and, optionally, a machine-based selection of a pair of transducers that correspond to the pair of transducer graphical elements 502. In some embodiments, the second selection does not include a selection of a user-selected transducer graphical element 502 made in response to a user instruction to select the transducer graphical element.
While in some embodiments, both the first selection (e.g., according to the instructions of block 710A) and the second selection (e.g., according to the instructions of block 710B) do not include a selection of a user-selected transducer graphical element made 502 in response to a user selection to select the user-selected transducer graphical element 502, in other embodiments, the second selection may include a selection of at least one user-selected between graphical element 504 (e.g., 504d) (e.g., made in response to a user-instruction to select the at least one user-selected between graphical element).
Block 710C shown in
Having discussed identifying the acceptability of concurrency of selection of transducer sets with respect to block 707 and corresponding subsequent selection of transducer graphical elements and activation of corresponding transducers pursuant to
In this regard, block 708 includes, in some embodiments, instructions (e.g., identification instructions) provided by a program configured to cause the data processing device system to identify activation-ready transducers of the transducer-based device as transducers deemed, based at least on an analysis of the transducer data (e.g., received according to the instructions of block 704), acceptable for activation (e.g., activation according to the instructions of block 712), and not-activation-ready transducers of the transducer-based device as transducers deemed, based at least on the analysis of the transducer data, not acceptable for activation (e.g., activation according to the instructions of block 712).
As discussed above, the identification of activation-ready transducers and not-activation-ready transducers of a transducer-based device in accordance with the instructions of block 708 can take different forms. In this regard, block 804 in
The example of block 804, in some embodiments, includes instructions (e.g., identification instructions provided by a program) configured to identify an activation-ready transducer of the transducer-based device (e.g., transducer-based devices 100, 300, 400) as a transducer that is associated with or adjacent a region of space deemed, based at least on an analysis of the transducer data, acceptable for ablation. In some embodiments, this “adjacent region of space” is a region of space that includes matter that would be activated, ablated, or otherwise interacted with by the corresponding transducer due to ablation activation or other activation of the corresponding transducer. In some embodiments, a region of space is determined, in view of an analysis of the transducer data, to be acceptable for ablation or activation of a corresponding transducer set, when the region of space is not determined to be unacceptable for ablation or activation. In some embodiments, a region of space is determined, in view of an analysis of the transducer data, to be not acceptable for ablation or activation of a corresponding transducer set, when all or particular matter in the region of space may be negatively or unacceptably negatively impacted by the ablation or activation of the corresponding transducer set. In some embodiments, block 804 includes instructions (not shown, e.g., identification instructions provided by a program) configured to cause identification of an activation-ready transducer of the transducer-based device (e.g., transducer-based devices 100, 300, 400) as a transducer that is deemed, based at least on an analysis of the transducer data, to be located within sufficient proximity to a region of space, the sufficient proximity deemed acceptable for ablation. In some embodiments, this sufficient proximity is deemed to require contact between the transducer and the tissue to be ablated.
In some embodiments, block 804 also includes instructions (e.g., identification instructions provided by a program) configured to identify a not-activation-ready transducer of the transducer-based device as a transducer that is adjacent a region of space deemed, based at least on the analysis of the transducer data, not acceptable for ablation. In some embodiments, block 804 includes instructions (not shown, e.g., identification instructions provided by a program) configured to identify a not-activation-ready transducer of the transducer-based device (e.g., transducer-based devices 100, 300, 400) as a transducer that is deemed, based at least on an analysis of the transducer data, not within sufficient proximity to a region of space, the sufficient proximity deemed acceptable for ablation.
It is understood that a transducer may be identified as an activation-ready transducer or not-activation-ready transducer on the basis of other criteria in other embodiments. In some embodiments, activation-ready transducers are referred to as ablation-ready transducers and not-activation-ready transducers are referred to as not-ablation-ready transducers. In some embodiments, at least two of the ablation-ready transducers or at least two of the not-ablation-ready transducers may be located on a same structural member (e.g., an elongate member 304) of a transducer-based device. In some embodiments, at least two of the ablation-ready transducers or at least two of the not-ablation-ready transducers may be located on different structural members (e.g., different elongate members 304) of a transducer-based device. These differences can be important as transducers along a structural member may have different ablation characteristics than transducers located on different structural members that have no physical portion of the transducer based device between them. For example, ablation along structural members may have, for example, different insulating effects on ablation as compared to ablation between structural members.
In some embodiments where the transducer-based device or a portion thereof is receivable or positionable in a bodily cavity, the instructions of block 804 may include instructions configured to require that, in order for a region of space to be deemed acceptable for ablation, the region of space be determined, based at least on the analysis of the transducer data (e.g., received according to the instructions of block 704, which may be part of block 804 or between blocks 802 and 804 in some embodiments), to be associated with a tissue in the bodily cavity that is acceptable for ablation. The instructions of block 804 may include instructions configured to require that, in order for a region of space to be deemed not acceptable for ablation, the region of space be determined, based at least on the analysis of the transducer data, to be associated with a tissue in the bodily cavity that is not acceptable for ablation. In some embodiments, the bodily cavity is an intra-cardiac cavity and the tissue in the bodily cavity that is not acceptable for ablation is blood.
In some embodiments where the transducer-based device or a portion thereof is receivable or positionable in a bodily cavity, the instructions of block 804 may include instructions configured to require that, in order for a region of space to be deemed acceptable for ablation, the region of space be determined, based at least on the analysis of the transducer data, to be associated with an anatomical feature of the bodily cavity that is acceptable for ablation. The instructions of block 804 may include instructions configured to require that, in order for a region of space to be deemed not acceptable for ablation, the region of space be determined, based at least on the analysis of the transducer data, to be associated with an anatomical feature of the bodily cavity that is not acceptable for ablation (e.g., a pulmonary vein).
In some embodiments where the transducer-based device or a portion thereof is receivable or positionable in a bodily cavity that includes a tissue wall surface interrupted by one or more ports in fluid communication with the bodily cavity, the instructions of block 804 may include instructions configured to require that, in order for a region of space to be deemed not acceptable for ablation, the region of space be determined, based at least on the analysis of the transducer data, to overlie a least part of a port of the one or more ports.
Referring back to
In some embodiments, like the above-discussion with respect to blocks 708 and 702, the graphical representation instructions may include instructions configured to cause the input-output device system to display the graphical elements 501 that are associated with transducer sets including the ablation-ready transducers with a first set of visual characteristics and to display the graphical elements 501 that are associated with transducer sets including the not-ablation-ready transducers with a second set of visual characteristics different than the first set of visual characteristics. In some embodiments, the first set of visual characteristics, the second set of visual characteristics, or both the first and the second sets of visual characteristics each includes a plurality of different visual characteristics. Different visual characteristics can include different colors, opacities, hues, intensities, shading, patterns, shapes or the addition or removal of any displayed information suitable for distinguishing an ablation-ready transducer from a not-ablation-ready transducer. In the embodiment of
In the embodiment illustrated in
In the embodiment illustrated in
Moving on to a discussion of blocks 806 and 808 in
In some embodiments, the ablation request associated with block 806 may be considered part of a selection of one or more graphical elements according to the instructions of block 710 in
It is noted that in some embodiments (e.g., embodiments where ablation-ready transducers and not-ablation-ready transducers are selectable in accordance with blocks 806 or 808), the method 800 may include determination instructions (e.g., instructions provided by a program) (not shown, but could be shown connected (immediately) downstream of block 806 and (immediately) upstream of block 822) configured to cause the data processing device system to determine whether an ablation-requested transducer set including the at least some of the plurality of transducers selected in accordance with blocks 806 or 808 includes a not-ablation-ready transducer. In this case, the method 800 may include ablation denial instructions (e.g., instructions provided in a program) configured to, if it is determined according to the determination instructions that the ablation-requested transducer set includes the not-ablation-ready transducer, deny the ablation request. In some embodiments, the ablation denial instructions are configured to deny the ablation request at least with respect to the not-ablation-ready transducer in the ablation-requested transducer set if it is determined according to the determination instructions that the ablation-requested transducer set includes the not-ablation-ready transducer. In some embodiments, the ablation denial instructions can take a form of non-activation instructions (e.g., instructions provided by a program) associated with block 822 in
Block 812 of method 800 includes instructions (e.g., instructions provided in a program) configured to, in response to receiving independent selections of graphical elements in accordance with block 808, cause the input-output device system to change a visual characteristic of the selected graphical elements 501 during a time interval that occurs during the receiving of the independent selections, after a completion of the receiving of the independent selections, or both during the receiving of the independent selections and after a completion of the receiving of the independent selections. In some embodiments, the selected graphical elements 501 include a selected between graphical element 504a as shown in
In a similar fashion, a visual characteristics of others of the graphical elements 501 (e.g., including transducer graphical elements 502) may change upon their selection in accordance with the instructions of block 808. For example, as shown in
It should be noted that, although the above discussion regarding changing of visual characteristics occurs within the context of
Block 814 of method 800 includes instructions (e.g., instructions provided in a program) configured to cause the input-output device system to display a respective electrogram 535 (only two called out in each of
Block 816 of method 800 includes path-display instructions (e.g., instructions provided in a program) configured to, in response to receiving the independent selections (e.g., selected according to the instructions of block 808 or 710) of between graphical elements 504, cause the graphical representation to include a displayed visual representation of a path 537 passing through at least a portion of each of the selected between graphical elements 504, during a time interval that occurs (a) during the receiving of the independent selections, (b) after a completion of the receiving of the independent selections, or both (a) and (b). In this embodiment, the displayed visual representation of the path extends between at least two of the plurality of rows 510 and between at least two of the plurality of columns 512. In this embodiment, path 537 surrounds a region 525 (e.g., one of the regions 525c). In this example embodiment, path 537 is a contiguous path. In this example embodiment, path 537 is a closed path. In this embodiment, the path display instructions of block 816 are further configured to cause the displayed visual representation of the path 537 to pass through at least some of the transducer graphical elements 502 associated with the transducers between which the regions of space associated with the selected between graphical elements 504 respectively reside. In some example embodiments (e.g., a visual or graphical representation (e.g., 600 in
Block 810 of method 800 (which could represent a particular subset of implementations of block 712 in
In some embodiments, selection of various graphical elements (e.g., graphical elements 501, 601) is not required to provide a visual representation of an ablation path (e.g., path 537). For example,
In a manner similar to block 702, block 902 of method 900 includes instructions (e.g., graphical representation instructions or graphical interface instructions included in a program) configured to cause an input-output device system (e.g., input-output device system 120 or 320) to display a graphical representation of at least a portion of a transducer-based device (e.g., transducer-based devices 200, 300, or 400).
In a manner similar to block 706, block 906 of method 900 includes instructions (e.g., identification instructions included in a program) that are configured to identify a region of the graphical representation that corresponds to at least a portion of one or more anatomical features based at least on the transducer data. In this example embodiment, a plurality of identified regions 525 is shown in the three-dimensional graphical representation provided by the graphical representation 500 of
Block 908 of method 900 includes selection instructions (e.g., instructions provided in a program) configured to cause the data processing device system (e.g., data processing device systems 110 or 310) to receive a selection from the input-output device system of at least one of the identified regions 525. Block 910 of method 900 includes path-display instructions (e.g., instructions provided in a program) configured to, in response to receiving the selection of the at least one of the identified regions, causes the displayed graphical representation to include a displayed visual representation of an ablation path configured for the anatomical feature.
Referring to
Unlike the embodiment of
In this example embodiment, the path-display instructions are configured to, in response to receiving the selection of the identified region 525c, cause the displayed visual representation of the ablation path to surround the identified region 525c. In this example embodiment, the path-display instructions are configured to, in response to receiving the selection of the identified region 525c, cause the displayed visual representation of the ablation path to continuously surround the identified region 525c. In some example embodiments, the respective ablation paths associated with different ones of at least two selected ones of the identified regions 525 may have different configurations (e.g., shape, continuity). In some example embodiments, the transducer data includes data associated with an electrical characteristic (e.g., impedance) of tissue within a bodily cavity in which the transducer based-device or a portion thereof is receivable or positionable. In some example embodiments, the transducer data includes data associated with a flow characteristic of fluid within a bodily cavity in which the transducer-based device or a portion thereof is receivable or positionable.
In this example embodiment, block 912 of method 900 includes instructions (e.g., instructions provided in a program) configured to, in response to receiving the selection of the identified region 525, cause the input-output device system to vary a visual characteristic of each of at least some of the graphical elements 501. In this example embodiment, a visual characteristic of each of at least some of the transducer graphical elements 502 and each of at least some of the between graphical elements 504 is changed.
In this example embodiment, block 914 of method 900 includes path-acceptance instructions (e.g., instructions provided in a program) configured to cause the data processing device system to receive an acceptance of the visual representation of the ablation path based at least on a user response via the input-output device system.
In this example embodiment, block 916 of method 900 includes activation instructions (e.g., instructions provided in a program) configured to, in response to receiving the acceptance, cause, via the input-output device system, energy from an energy source device system (e.g., energy source device system 340) to be delivered to each of the transducers associated with the at least some of the plurality of transducer graphical elements 502, the energy sufficient for ablating tissue. Ablation can include monopolar ablation, or bipolar ablation or combinations thereof.
In various embodiments, each of the transducer sets in the first sequence form part of a group of the transducer sets. In various embodiments, various transducer sets in a group of transducer sets are selected according to a first sequence (e.g., the first sequence described above with regard to block 807) with at least two of the transducer sets in the group sequentially selected. In accordance with the discussion above, in at least some of these various embodiments, each of at least some of the selected transducer sets in the group includes at least one transducer different than each of the other transducer sets in the group. In at least some of these various embodiments, each of at least some of the transducer sets in the group includes at least two transducers. In at least some of these various embodiments, each of at least some of the transducer sets in the group includes a respective pair of adjacent ones of the transducers in a distribution of the transducers. The respective pair of adjacent ones of the transducers of each of the at least some of the transducer sets in the group may have a same transducer as the respective pair of adjacent ones of the transducers of another of the at least some of the of the transducer sets in the group. In some of these various embodiments, at least a first transducer set in the group has a same transducer as a second transducer set in the group. In at least some of these various embodiments, two or more of the transducers in a given one of the transducer sets may be selected concurrently (e.g., a pair of transducers selected by a selection of a between graphical element 504, 604 as described above). In at least some of these various embodiments, two or more of the transducer sets in the group may also be selected concurrently in the first sequence. In at least some of these various embodiments, an additional transducer set may be selected concurrently with one of the at least two of the transducer sets sequentially selected according to the first sequence. Transducer sets in the group that include different numbers of transducers or different transducers may be selected according to the first sequence. For example, the first sequence may indicate at least (a) a selection (e.g., by a selection of a transducer graphical element 502, 602) of a first transducer in a first transducer set in the group followed by a selection (e.g., by a selection of a between graphical element 504, 604) of a pair of second and third transducers in a second transducer set in the group, (b) a selection (e.g., by a selection of a between graphical element 504, 604) of a pair of fourth and fifth transducers in a third transducer set in the group followed by a selection (e.g., by a selection of a transducer graphical element 502, 602) of a sixth transducer in a fourth transducer set in the group, or both (a) and (b).
In some embodiments, the activation instructions of block 810 of method 800 includes activation instructions as per block 811 (e.g., instructions provided in a program) configured to cause sequential activation, initiated during or after completion of a generation of a second sequence of transducer sets (discussed below), of the transducer sets in the second sequence of transducer sets. The activation of the transducer sets in the second sequence occurs according to the second sequence, and the activation instructions are configured to cause activation of at least one transducer in each of the sequentially activated sets. In one particular embodiment, the activation of instructions of block 811 are configured to cause activation of the transducer sets of a group of transducer sets according to a second sequence different than the first sequence in which the transducer sets of the group of transducers sets were selected.
The second sequence may be determined in various manners. For example, in some embodiments, method 800 may include a block 809 (e.g., shown in
In various embodiments, ablation request instructions (e.g., instructions provided by block 806) include reception instructions (e.g., provided in a program) (not shown in the Figures) configured to receive a selection of a path (e.g., path 537 in
Generation instructions (not shown in the Figures, but similar to the generation instructions associated with block 809) may be configured to, in response to receiving at least part of the selection of the ablation path (e.g., path 537), cause generation of a second order of transducer sets different than the first order based at least on an analysis of the transducer sets in the first order. In this regard, the generation of the second order can be initiated in response to receiving part of the selection of the ablation path, such that it is initiated during the receiving of the selection of the ablation path. Or, the generation of the second order can be initiated after receiving the entirety of the selection of the ablation path. Like the above-discussion with respect to block 809,
In regard to the analysis that might lead to the above-discussed generation of the second sequence or second order based on an analysis of transducer sets in the respective first sequence and first order, situations may arise that make it undesirable to activate various transducer sets in a group concurrently, and at least two of the transducer sets in the group may, therefore, need to be activated sequentially or a delay between the activation of at least two of the transducer sets in the group may be required. Consequently, if the first sequence or first order includes these various transducer sets in the group, the second sequence or second order could be generated according to some embodiments to indicate an activation sequence or order that does not activate such various transducer sets in the group concurrently.
For example,
It should be noted that the reference to the “at least one-transducer gap”, above, may be a function of the distance between transducers. Accordingly,
It should also be noted that the “at least one-transducer gap”, above, need not only be applied to the context where a first sequence or first order of transducer sets is selected, and can apply anytime a transducer-set-activation schedule is generated from a pool of transducer sets.
Block 1102 includes selection instructions configured to cause a reception from an input-output device system (e.g., input-output device system 120 or 320) of a selection of at least some of a plurality of pairs of adjacent ones of the transducers arranged in a distribution by a transducer-based device (e.g., transducers 306 shown in
In one example embodiment, a first pair of the transducers 306 and a second pair of the transducers 306 is selected. This selection could be according to the above-discussed first sequence or first order, in some embodiments. Block 1104 includes activation instructions configured to cause activation of the selected at least some of the plurality of adjacent ones of the transducers 306 in the distribution, subject to delay instructions configured to cause a delay in the activation of the first pair of adjacent ones of the transducers 306 in the distribution with respect to a starting of the activation of the second pair of adjacent ones of the transducers 306 in the distribution in response to a circumstance where a respective transducer in each of the first and the second pairs of adjacent ones of the transducers 306 forms part of a third pair of adjacent ones of the transducers 306 in the distribution.
For example, in
In various embodiments, activation in accordance with method 1100 can ensure the above-discussed “at least one-transducer gap” and, therefore, may allow each of the selected transducer pairs to be treated independently of one another in ablation activation embodiments and may lead to more consistent and uniform ablated regions or the use of more uniform operating parameters as discussed above. In addition, in some embodiments, an activation sequence or order, which may be the above-discussed second sequence or second order, respectively, may be generated based on an analysis of transducer sets in an initial transducer-selection sequence or order, which may be the above-discussed first sequence or first order, respectively, according to the delay instructions associated with block 1104. For example, in some embodiments, a user might initially select a sequence of the following four transducers sets, each set including a single transducer: 306d, 306e, 306f, and 306g (e.g.,
In some embodiments, each of the transducers 306 in the first pair of adjacent ones of the transducers 306 according to block 1104 is different than each of the transducers 306 in the second pair of adjacent ones of the transducers 306 according to block 1104. In some embodiments, each of the first and the second pairs of adjacent ones of the transducers 306 share a same transducer 306. For example, the first pair might include transducers 602b and 602c in
It is noted that in various embodiments, method 1100 may be employed not only with pairs of adjacent ones of the transducers located on a same elongate member 304 but may be employed with transducer pairs located on different elongate members 304. For example, if the selected first pair of adjacent transducers 306 includes transducers 306d and 306i, and the selected second pair of adjacent transducers 306 includes transducers 306j and 306k, then activation of transducers 306d, 306i forming the first pair of adjacent transducers 306 may be delayed with respect to a starting of the activation of transducers 306j, 306k forming the second pair of adjacent transducers 306 since, in accordance with the instructions of block 1104, a respective transducer in the first pair of adjacent transducers 306 (e.g., transducer 306i) and a respective transducer in the second pair of adjacent transducers 306 (e.g., transducer 306j) forms part of a third pair of adjacent ones of transducers 306 in the distribution. In some embodiments, diagonally arranged pairs of adjacent ones of the transducers 306 are also considered in method 1100. In some embodiments, the transducers 306 of the selected first pair of adjacent ones of the transducers 306 in the distribution are located on a first elongate member 304 and the transducers 306 of the selected second pair of adjacent ones of the transducers 306 in the distribution are located on a second elongate member 304, the second elongate member 304 different than the first elongate member 304. In some embodiments, a region of space associated with a physical part of the transducer-based device 300 is between the transducers 306 of (a) the selected first pair of adjacent ones of the transducers 306 in the distribution, (b) the selected second pair of adjacent ones of the transducers 306 in the distribution, or (c) each of (a) and (b), and a region of space not associated with any physical part of the transducer-based device 300 is between the transducers 306 of the third pair of adjacent ones of the transducers 306 in the distribution.
In some embodiments, the delay instructions of block 1104 include instructions configured to cause a delay of the activation of the first pair of adjacent ones of the transducers 306 in the distribution until after completion of the activation of the second pair of adjacent ones of the transducers 306 in the distribution. In some embodiments the third pair of transducers 306 may form part of the selected pairs of adjacent transducers 306. For example, each of the first, the second, and the third pairs of adjacent ones of the transducers 306 may be selected by a selection of a respective between graphical element (e.g., between graphical element 504, 604) associated with each pair. In some embodiments, method 1100 may include instructions (not shown) configured to cause a delay of the activation of a selected third pair of adjacent ones of the transducers 306 in the distribution with respect to a starting of the activation of each of the selected first pair and the selected second pair of adjacent ones of the transducers 306 in the distribution in response to the circumstance where a respective transducer 306 in each of the selected first and the second pairs of adjacent ones of transducers 306 in the distribution forms part of the selected third pair of adjacent ones of the transducers 306 in the distribution. In various embodiments, method 1100 includes instructions (not shown) configured to cause the starting of the activation of the selected third pair of adjacent ones of the transducers 306 in the distribution after completion of the activation of each of the selected first and the selected second pair of adjacent ones of the transducers 306 in the distribution.
In some embodiments, the delay instructions of block 1104 are configured to cause a delay of the starting of the activation of the first pair of adjacent ones of the transducers 306 in the distribution until after expiry of a time interval, the time interval commencing after completion of the activation of the second pair of adjacent ones of the transducers 306 in the distribution. The use of a time interval may be motivated for different reasons. For example, the time interval may provide a cool down time period to further promote more uniform ablation region characteristics. In some embodiments, the third pair of adjacent ones of the transducers 306 in the distribution is not selected in accordance with the instructions of block 1102. In some embodiments, a predetermined delay is employed by the delay instructions of block 1104.
In various embodiments, the activation instructions of block 1104 cause energy from an energy source device system (e.g. energy source device system 340) to be delivered to each of at least some of the selected pairs of adjacent ones of the transducers in the distribution. In some of these various embodiments, the delivered energy is sufficient for tissue ablation. In some of these various embodiments, the input-output device system includes a sensing device system (e.g., sensing device system 325) configured to detect at least one tissue characteristic (e.g., tissue impedance) at respective locations at least proximate each of the selected pairs of adjacent ones of the transducers 306 in the distribution with the energy delivered to each of at least some of the selected pairs of adjacent ones of transducers 306 in the distribution (e.g., in some embodiments, tissue impedance may be measured between transducers on the structure 308 or between a transducer on the structure 308 and the indifferent electrode 326). The activation instructions of block 1104 may include instructions (not shown) configured to cause bipolar activation of at least the selected first pair of adjacent ones of the transducers 306 in the distribution and the selected second pair of adjacent ones of the transducers 306 in the distribution. The activation instructions of block 1104 may include instructions (not shown) configured to cause monopolar activation of at least the selected first pair of adjacent ones of the transducers 306 in the distribution and the selected second pair of adjacent ones of the transducers 306 in the distribution.
In various embodiments, the activation instructions of block 1104 include instructions (not shown) configured to cause activation of at least the selected first pair of adjacent ones of the transducers 306 in the distribution for a first time interval and cause activation of at least the second pair of adjacent ones of the transducers 306 in the distribution for a second time interval, a duration of the second time interval being different than a duration of the first time interval. In some of these various embodiments, the first time interval, the second time interval, or each of the first and the second time interval is a predetermined time interval. Example reasons for having these different activation time intervals are discussed below with respect to
Block 1206A includes instructions configured to cause the activation of the first pair of adjacent ones of the transducers 306 in the distribution to start after completion of the activation of the second pair of the adjacent ones of the transducers 306 in the distribution in response to a circumstance where the first pair and the second pair of adjacent ones of the transducers 306 in the distribution share a same transducer 306. Block 1206B includes instructions configured to cause at least part of the activation of the first pair of adjacent ones of the transducers 306 in the distribution to occur concurrently with at least part of the activation of the second pair of adjacent ones of the transducers 306 in the distribution in response to a circumstance where the first and the second pair of adjacent ones of the transducers 306 in the distribution do not share a same transducer 306. For example, if the selected first pair of adjacent transducers 306 includes transducers 306d and 306e and the selected second pair of adjacent transducers 306 includes transducers 306e and 306f, each of the selected first and the second pairs of adjacent transducers shares a same transducer 306e and the activation of the first pair of adjacent transducers 306 may occur after the completion of the activation of the second pair of adjacent transducers 306 in accordance with the instructions of block 1206A. If the selected first pair of adjacent transducers 306 includes transducers 306d and 306e and the selected second pair of adjacent transducers 306 includes transducers 306g and 306h, each of the first and the second pairs of adjacent transducers does not share a same transducer 306 and at least part of the activation of the first pair of adjacent transducers 306 may occur concurrently with at least part of the activation of the second pair of adjacent transducers 306 in accordance with the instructions of block 1206B. Ablation activation embodiments carried out in accordance with the instructions of method 1200 may allow for more uniform ablation characteristics.
In some embodiments, an activation sequence or order, which may be the above-discussed second sequence or second order, respectively, may be generated based on an analysis of transducer sets in an initial transducer-selection sequence or order, which may be the above-discussed first sequence or first order, respectively, can occur according to the instructions of block 1206A, block 1206B, or both blocks 1206A and 1206B.
In some embodiments, aspects of method 1200 may be combined with aspects of method 1100. For example, the activation instructions of block 1206 may further include instructions (not shown) configured to cause the activation of the selected first pair of adjacent transducers 306 to start after a completion of the activation of the selected second pair of adjacent transducers 306 in response to a circumstance where a respective transducer 306 in each of the selected first and the second pairs of adjacent transducers 306 forms part of another pair of adjacent ones of the transducers 306 in the distribution.
In some embodiments, the activation instructions of block 1206 include instructions (not shown) configured to cause activation of at least the selected first pair of the adjacent transducers 306 for a first time interval and cause activation of at least the selected second pair of adjacent transducers for a second time interval, a duration of the second time interval being different than a duration of the first time interval. Activation of selected pairs of adjacent transducers 306 may include an activation resulting in tissue ablation, an activation resulting in the determination of a tissue characteristic (e.g., tissue impedance), or other forms of activation. Activation of the selected pairs of adjacent transducers 306 may include bipolar activation or monopolar activation or combinations thereof. Selection of the pairs of adjacent transducers 306 may be accomplished by the selection of various graphical elements as previously described in this detailed description.
As discussed above, in some embodiments, generation of the above-discussed second sequence or second order in accordance with the generation instructions of block 809 may be based at least in part on various aspects of
In some embodiments, generation of a second sequence of transducer sets or a second order of transducer sets in accordance with the generation instructions of block 809 may be based at least on the analysis that reduces an overall activation time of various transducer sets in a selected group. An analysis of the transducers sets in a selected group to determine the second sequence may take various factors into account especially when a reduction in, or the optimization of, the overall activation time of various ones or all of the transducer sets in the group is desired. For example, in some embodiments that employ relatively large numbers of transducers (e.g., a hundred or more transducers), economic constraints may prevent having a one-to-one correspondence between a respective one of a plurality of energy source devices (e.g., power source drivers) and a respective one of the plurality of transducers. Generation of a second sequence or second order in accordance with the generation instructions of block 809 may be based at least on an analysis of a connection arrangement between each of at least some of the transducer sets in the group and the plurality of energy source devices. For example, generation of a second sequence or second order in accordance with the generation instructions of block 809 may be based at least on an analysis of availability of a particular one of the plurality of energy sources during a desired activation of an associated one of the transducer sets.
Other factors may include differing activation time intervals. Different activation time intervals may be associated with different transducer sets for various reasons. As described above, in some embodiments, activation of a first transducer set may occur after a completion of the activation of a second transducer set. In some embodiments, an employed memory device system (e.g., memory device systems 130, 330) may store information associated with a respective activation time interval for each of at least two of the selected transducer sets, the respective activation time intervals having different durations. The analysis may include an analysis of each of the respective activation time intervals or other factors associated with these time intervals.
Block 1302 includes reception instructions configured to cause a reception from an input-output device system (e.g., input-output device system 120 or 320) of a selection of a group of pairs of adjacent transducers arranged in a distribution by a transducer-based device (e.g., transducer-based device 300 shown in
In this example embodiment, block 1306 includes activation instructions, which in this example embodiment, are configured to cause energy from an energy source device system (e.g., energy source device system 340) to be delivered to the transducers 306 of various ones of the selected pairs of adjacent transducers 306 in the distribution. In this embodiment, the instructions of block 1306 include instructions associated with blocks 1306A and 1306B. Block 1306A includes first delivery instructions configured to cause a first delivery of energy to be provided by the energy source device system to each of the transducers 306 of the first pair of the adjacent ones of the transducers 306 in the distribution, the first delivery of energy configured to occur over a first interval (a) during the reception of the selection of the group of pairs of adjacent transducers 306, (b) after a completion of the reception of the selection of the group of pairs of adjacent transducers 306, or both (a) and (b) to form at least a first lesion in a first region of a tissue wall. Block 1306B includes second delivery instructions configured to cause a second delivery of energy to be provided by the energy source device system to each of the transducers 306 of the second pair of the adjacent ones of the transducers 306 in the distribution, the second delivery of energy configured to occur over a second interval (c) during the reception of the selection of the group of pairs of adjacent transducers 306, (d) after a completion of the reception of the selection of the group of pairs of adjacent transducers 306, or both (c) and (d) to form at least a second lesion in a second region of a tissue wall, a duration of the second time interval being different than a duration of the first time interval. In some embodiments, the first lesion extends continuously across the first region between the transducers 306 of the first pair of adjacent transducers 306. In some embodiments, the second lesion extends continuously across the second region between the transducers 306 of the second pair of adjacent transducers 306. In some embodiments, each of the first lesion, the second lesion, or both the first and the second lesions act as an electrophysiological activity conduction block that blocks electrophysiological activity in a respective one of the first region and the second region of the tissue wall.
The duration of activation time intervals (e.g., the first and the second time intervals in this example embodiment) may vary based on various factors, such as those described below with respect to blocks 1304A-1304G. In some embodiments, block 1304 includes instructions configured to cause a determination of various ones of the activation time intervals. In some embodiments, block 1304 includes first determination instructions configured to cause a determination of a duration of a first time interval for a first pair of transducers (selected, e.g., according to block 1302) and second determination instructions configured to cause a determination of a duration of a second time interval for a second pair of transducers (selected, e.g., according to block 1302). It should be noted, however, that the determinations described herein with respect to block 1304 need not apply only to the activation intervals for transducer pairs, and equally pertain to the determination of activation intervals for single transducers. Blocks 1304A-1304G provide examples of factors that can be used individually or in combination to determine one or more activation time intervals.
In some embodiments, the duration of the first time interval is determined in accordance with the instructions of block 1304A based at least on the respective corresponding size of the energy transmission surface 319 of each of at least one of the electrodes 315 of the first pair of adjacent transducers 306, and additionally or alternatively, the duration of the second time interval is determined based at least on the respective corresponding size of the energy transmission surface 319 of at least one of the electrodes 315 of the second pair of adjacent transducers 306. In some embodiments, a duration of the second time interval may be different than the duration of the first time interval at least because of a difference in a magnitude between a determined corresponding size of at least one of the respective electrodes 315 of the first pair of adjacent transducers 306 and a determined corresponding size of at least one of the respective electrodes 315 of the second pair of adjacent transducers 306.
For example, with respect to
In this example embodiment, three transducers 306 including a first transducer 306m, a second transducer 306l, and a third transducer 306n are shown. In this example embodiment, the selected first pair of adjacent transducers 306 includes transducers 306l and 306m and the selected second pair of transducers 306 includes transducers 306m and 306n. It is understood that selected first and second pairs of adjacent transducers 306 need not share a same transducer 306 and, in some embodiments, each of the transducers in the selected first pair of adjacent transducers 306 is different from each of the transducers in the selected second pair of adjacent transducers 306. In this example embodiment, each of the first, the second, and the third transducers 306m, 306l and 306n includes a respective electrode (i.e., a respective one of first electrode 315m, second electrode 315l, and third electrode 315n) having a respective energy transmission surface 319 (i.e., a respective one of first energy transmission surface 319m, second energy transmission surface 319l and third energy transmission surface 319n). In this example embodiment, each of the energy transmission surfaces 319 has a corresponding size and a corresponding shape. In this particular embodiment, a magnitude of a surface area size of an exposed conductive portion of the first energy transmission surface 319m associated with first electrode 306m is less than a magnitude of a surface area size of an exposed conductive portion of the second energy transmission surface 319l associated with the second transducer 306l. In this particular embodiment, the magnitude of the surface area size of the exposed conductive portion of the first energy transmission surface 319m is greater than a magnitude of a surface area size of an exposed conductive portion of the third energy transmission surface 319n associated with the third transducer 306n. Magnitude differences between the corresponding sizes of various transducers 306 employed in various embodiments may be motivated by various factors. In this example embodiment, electrodes 315 having smaller sizes are employed in regions where the elongate members 304 are spaced closer with respect to one another or overlap one another.
As discussed above, the energy transmission surface 319l of electrode 315l of the first pair of adjacent transducers 306 has a greater surface area than the energy transmission surface 319n of electrode 315n of the second pair of adjacent transducers 306, and, therefore, the duration of the second time interval is greater than the duration of the first time interval. In this example embodiment, each of the first and the second pairs of adjacent electrodes 315 has an electrode (e.g., electrode 315m) having a same corresponding size.
In some embodiments, a determination of a particular duration of the first and the second time intervals is based on various relationships between the respective transducers 306 of an associated one of the selected first and the second pairs of adjacent transducers 306. For example, as shown by block 1304B in
With respect to block 1304G in
In some example embodiments, the first time interval (for activating the first pair of transducers, e.g., selected according to block 1302), the second time interval (for activating the second pair of transducers, e.g., selected according to block 1302) or both the first and the second time intervals may be determined at least in part from transducer data. For example, in various embodiments, block 1303 may include data request instructions configured to cause a reception of transducer data via the input-output device system, the transducer data indicating data acquired by at least some of the plurality of transducers 306. In some of these various embodiments, duration instructions provided by block 1304C are configured to cause a determination of the first time interval, the second time interval, or both the first and the second time intervals based at least on an analysis of the transducer data. In some of these embodiments the first delivery instructions of block 1306A are configured to cause the first delivery of energy to be provided by the energy source device system to each of the transducers 306 of the first pair of adjacent transducers 306 during or after completion of the reception of the transducer data. In some of these embodiments, the second delivery instructions of block 1306B are configured to cause the second delivery of energy to be provided by the energy source device system to each of the transducers 306 of the second pair of adjacent transducers 306 during or after the completion of the reception of the transducer data.
Various analyses of the transducer data may be performed. In some embodiments, positional determination instructions associated with block 1304D may be configured to cause, based at least on an analysis of the transducer data, a determination of a spatial relationship between the transducers 306 providing the transducer data and a bodily cavity in which the transducers 306 are positioned. In this regard, the first time interval, the second time interval, or both the first and the second time intervals can be determined based at least on the determined spatial relationship at block 1304D.
In some embodiments, proximity determination instructions associated with block 1304E may be configured to cause, based at least on an analysis of the transducer data, a determination of a proximity of each of the transducer data providing-transducers 306 to an anatomical feature in a bodily cavity in which the transducers 306 are positioned. In this regard, the first time interval, the second time interval, or both the first and the second time intervals can be determined according to block 1304E based at least on the determined proximity of each of the transducer data providing-transducers to the anatomical feature.
In some embodiments, tissue determination instructions associated with block 1304F are configured to cause, based at least on an analysis of the transducer data, a determination of a tissue characteristic (e.g., tissue thickness, tissue type). In this regard, the first time interval, the second time interval, or both the first and the second time intervals can be determined according to block 1304F based at least on the determined tissue characteristic.
For example, in regard to blocks 1304D, 1034E, and 1304F, the transducer data might include impedance or other information that indicates that a first pair of transducers is in contact with thinner tissue than is a second pair of transducers. Thicker tissue, in some embodiments, requires a longer ablation duration than thinner tissue and, therefore, the first pair of transducers might be activated, e.g., by delivery of ablative energy, according to the instructions of block 1306 for a first interval longer than a second interval by which the second pair of transducers is activated (assuming the transducers of the first and second pairs have roughly equivalent sizes and energy delivery capabilities).
In some embodiments, the determination instructions associated with block 1304 (or any sub-block therein) are configured to determine the duration of the first time interval, the second time interval or both the first and the second time intervals based at least in part from a selection of data stored in a memory device system (e.g., memory device system 130, 330). In some example embodiments, predetermined values (e.g., default values) associated with the first time interval, the second time interval, or both the first and the second time intervals are provided by data stored in the memory device system. In this regard, the time intervals can be pre-calculated (instead of being calculated in real-time) in some embodiments and stored in the memory device system, such that the determination at, for example, any of blocks 1304A-G, could merely be a retrieval of the appropriate time intervals from the memory device system.
In some embodiments, generation of a second sequence or second order in accordance with the generation instruction of block 809 may be based at least in part on various aspects of the determinations described with respect to block 1304, which can generate activation time intervals and then cause transducer activation according to the generated time intervals according to the above-discussed second sequence or second order in a time-efficient manner.
In various embodiments, a particular transducer may form part of each of at least two sets of transducers arranged in a distribution by a transducer-based device, each of the at least two sets of transducers independently selectable, (e.g., by a graphical interface described herein). In various embodiments, an activation of a particular transducer may vary based at least on which of the at least two selectable sets of transducers the particular transducer forms part of.
For example,
Block 1406 includes activation instructions configured to cause activation via the input-output device system of each of the selected at least two of the plurality of transducers 306. In some example embodiments, block 1406 includes blocks 1407A and 1407B. Block 1407A includes instructions configured to cause the activation of at least the first transducer 306 to occur for a first time interval when the selected at least two of the plurality of transducers 306 includes the second transducer 306 in the distribution. Block 1407B includes instructions configured to cause the activation of at least the first transducer 306 to occur for a second time interval when the selected at least two of the plurality of transducers 306 includes the third transducer 306 in the distribution. In this embodiment, a duration of the second time interval is different than a duration of the first time interval. Activation of the selected at least two of the plurality of transducers 306 may include an activation resulting in tissue ablation, an activation resulting in the determination of a tissue characteristic (e.g., tissue impedance), or other forms of activation. Activation of the selected at least two of the plurality of transducers 306 may include bipolar activation or monopolar activation or combinations thereof.
As previously described in this detailed description, various factors may have a bearing on the use of different activation time intervals. In some embodiments, each of the first, the second, and the third transducers 306 includes a respective electrode 315 having an energy transmission surface 319, each energy transmission surface 319 having a respective corresponding size, with the respective corresponding size associated with the second transducer 306 having a different magnitude than the respective corresponding size associated with the third transducer 306. Such may occur, for example in one particular embodiment, when the first transducer is transducer 306m, the second transducer is transducer 306l, and the third transducer is transducer 306n as shown in
In various embodiments, the first transducer 306 is spaced from the second transducer 306 by a first distance in the distribution, and the first transducer 306 is spaced from the third transducer 306 by a second distance in the distribution, the second distance being longer than the first distance. In some of these various embodiments, a duration of the second time interval associated with a selection of the third transducer 306 is longer than a duration of the first time interval associated with a selection of the second transducer 306.
In various embodiments, a first region of space that is associated with a physical part of the structure 308 of the transducer-based device 300 is located between the second transducer 306 and the first transducer 306 and a second region of space is that is not associated with any physical part of the structure 308 is located between the first transducer 306 and the third transducer 306. Such may occur, for example, when the first transducer is transducer 306b, the second transducer is transducer 306c and the third transducer is transducer 306a as shown in
In some embodiments, each of at least one of the first time interval and the second time interval is a predetermined time interval. In various example embodiments, a sensing device system (e.g., sensing device system 325) detects a detectable attribute (e.g., temperature, a tissue or non-tissue electrical characteristic) at each of a plurality of locations, each of at least two of the plurality of locations at least proximate a respective one of the selected at least two of the plurality of transducers 306. In some of these various embodiments, method 1400 may include instructions (not shown) configured to cause a determination of each of the at least one of the first and the second time intervals based at least on the detected attributes at each of at least some of the plurality of locations. Determination of any of the first and the second time intervals may be based at least on transducer data indicating data acquired by at least some of the plurality of transducers 306. For example, duration determination instructions (not shown) may be provided to cause determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on a spatial relationship caused to be determined based at least on the transducer data by positional determination instructions (not shown, but similar to the instructions of block 1304D). In some embodiments, the duration determination instructions may be provided to cause determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on a determined proximity of each of at least some of the plurality of transducers to an anatomical feature in a bodily cavity, the determined proximity caused to be determined based at least on the transducer data by proximity determination instructions (not shown but similar to the proximity determination instructions of block 1304E). In some embodiments, the duration determination instructions may be provided to cause determination of the duration of the first time interval, the second time interval, or both the first and the second time intervals based at least on a determined tissue characteristic caused to be determined based at least on the transducer data by tissue determination instructions (not shown but similar to the instructions of block 1304F). In some embodiments, the activation instructions of block 1406 are configured to cause activation of each of the at least two of the plurality of transducers 306 during or after completion of the reception of the transducer data. In some embodiments, as discussed above, generation of a second sequence or second order in accordance with the generation instruction of block 809 may be based at least in part on various aspects of method 1400.
In some embodiments, other forms of variances in the activation of a particular transducer may occur depending on which of at least two selectable sets of transducers the particular transducer forms part of For example,
In some particular embodiments, block 1406A includes energy delivery instructions configured to selectively cause energy from an energy source device system (e.g., energy source device system 340) to be delivered to each transducer of a selected pair of transducers 306 that includes the first transducer 306 and one of a second transducer 306 and a third transducer 306 selected as per block 1402. Again, each of the first, the second, and the third transducers 306 are different transducers 306. In various embodiments, each of the first transducer 306 and the second transducer 306 form a first pair of adjacent ones of the transducers 306 in the distribution, and each of the first transducer 306 and the third transducer 306 form a second pair of adjacent ones of the transducers 306 in the distribution. It is noted that other transducer-based devices employing other transducers may be employed in other embodiments associated with block 1406A. In some embodiments, the energy delivered from the energy source device system is sufficient for tissue ablation (e.g., bipolar tissue ablation).
In various embodiments associated with block 1406A, a memory device system (e.g., memory device system 130, 330) stores information associated with a respective set of one or more target temperatures for each of a number of the transducers 306 in the distribution of transducers 306 provided by transducer-based device 300 (e.g., at least the first transducer 306 and the second transducer 306 or the third transducer 306 selected according to block 1402). In this regard, thermal sensing instructions provided by block 1409 may be configured to cause reception of detected temperature information indicating respective temperatures detected by a sensing device system (e.g., sensing device system 325) at respective locations at least proximate each of at least some of the transducers 306 in a selected set of transducers 306 (e.g., from block 1402). This detected temperature information can be for comparison with the target temperatures, in some embodiments.
For example, in various embodiments, the energy delivery instructions of block 1406A include adjustment instructions provided by block 1410A configured to cause the energy delivered to at least one transducer 306 of a selected pair of transducers 306 (e.g., from block 1402) to be adjusted based at least on a difference between a respective temperature detected by a sensing device system (e.g., sensing device system 325) at a respective location at least proximate the first transducer 306 of the selected pair of transducers 306 and the respective target temperature associated with the first transducer 306. In some embodiments, the energy delivery instructions of block 1406A are configured to control the energy provided to the at least one transducer 306 of the selected pair of transducers 306 to maintain the temperature detected by the sensing device system at the location at least proximate the first transducer 306 of the selected pair of transducers 306 at or near the respective target temperature associated with the first transducer 306 of the selected pair of transducers 306. In some embodiments, the at least one transducer 306 of the selected pair of transducers 306 includes the first transducer 306 of the selected pair, or the first transducer of the selected pair and either the second transducer 306 or the third transducer 306, whichever is selected according to block 1402.
In some embodiments, the respective set of one or more target temperatures associated with the first transducer 306 of the selected pair of transducers 306 includes a first target temperature and a second target temperature having a different value than the first target temperature. The first target temperature or the second target temperature may be utilized for energy delivery control depending upon what other transducer the first transducer 306 is paired with. For example, the first target temperature may be selected for energy delivery control when the first transducer 306 is paired with the second transducer 306. On the other hand, the second target temperature may be selected for energy delivery control when the first transducer 306 is paired with the third transducer 306. Such an arrangement may be beneficial for temperature control in circumstances where the second transducer 306 and the third transducer 306 have different characteristics, such as size, location, distance from the first transducer 306, relationship with respect to a bodily cavity, or whether a physical part of the transducer-based device (e.g., 300) or a region of space not associated with any physical part of the transducer-based device is between the respective transducer and the first transducer 306, et cetera.
In this regard, block 1406A may include first adjustment instructions provided by block 1410B, the first adjustment instructions configured to, when the selected pair of transducers 306 includes the second transducer 306, cause adjustment of the energy delivered from the energy source device system to the first transducer 306, the second transducer 306, or both the first transducer 306 and the second transducer 306 based at least on a difference between (a) the temperature detected by a sensing device system (e.g., sensing device system 325) at a location at least proximate the first transducer 306 and (b) the first target temperature. On the other hand, block 1406A may include second adjustment instructions provided by block 1410C, the second adjustment instructions configured to, when the selected pair of transducers 306 includes the third transducer 306, cause adjustment of the energy delivered from the energy source device system to the first transducer 306, the third transducer 306 or both the first and the third transducers 306 based at least on a difference between (c) the temperature detected by the sensing device system at a location proximate the first transducer 306 and (d) the second target temperature.
In some embodiments, the selected pair is considered a selected first pair of transducers 306, and the memory device system stores target temperature information associated with a respective target temperature for each transducer 306 of at least a second pair of transducers 306 in the distribution, at least one of the respective target temperatures associated with the transducers 306 of the second pair of transducers 306 having a different value than each of the respective target temperatures associated with the transducers 306 of the first pair of transducers 306. In some embodiments, the respective target temperatures associated with the transducers 306 of the second pair of transducers 306 have different values. In some embodiments, each of the respective target temperatures associated with the transducers 306 of the second pair of transducers 306 has a different value than each of the respective target temperatures associated with the transducers 306 of the first pair of transducers 306. For example, different transducer characteristics (location, size, relationship with respect to another transducer or a bodily cavity, material or lack thereof between transducers) can lead to respectively different target temperatures.
In some embodiments, the respective set of one more target temperatures associated with each of the number of transducers 306 in the distribution may be such that the memory device system stores target temperature information for each transducer 306 of a first pair of the transducers 306 in the distribution, the respective target temperatures associated with the transducers 306 of the first pair of transducers 306 in the distribution having different values. In various embodiments, the first pair of transducers 306 is a first pair of adjacent ones of the transducers 306 in the distribution. For example, when the selected first pair of the transducers 306 includes the first transducer 306 and the second transducer 306 described above, a value of a target temperature associated with the second transducer 306 may be different than a value of a target temperature associated with the first transducer 306. In some embodiments, a respective set of one or more target temperatures associated with the first transducer 306 may include only a single target temperature value.
In a manner similar to at least some of the embodiments employing different activation time intervals, various factors may have a bearing on the use of different target temperatures. For example, in some embodiments, different transducer-electrode energy transmission surface sizes, shapes, or both cause differences in energy-delivery characteristics, which raise the need for different target temperatures. In this regard, in some embodiments, each of the first, the second, and the third transducers 306 includes a respective electrode 315 having an energy transmission surface 319, each energy transmission surface having a respective corresponding size, with the respective corresponding size associated with the second transducer 306 having a different magnitude than the respective corresponding size associated with the third transducer 306. Also, in some embodiments, the energy transmission surface 319 may have a respective shape, the respective shape of the energy transmission surface 319 of the second transducer 306 being different than the respective shape of the energy transmission surface 319 of the third transducer 306. In various embodiments, a respective size or respective shape of the energy transmission surface 319 of at least one of the second transducer 306 and the third transducer 306 may be different than the respective corresponding size or the respective shape of the first transducer 306. Consequently, in some embodiments involving different electrode sizes, shapes, or both sizes and shapes, different target temperatures are associated with the respective transducer sets.
For another example, in some embodiments, different transducer spacings, different types of material between transducers, or both cause differences in energy-delivery characteristics, which raise the need for different target temperatures. In this regard, in various embodiments, the first transducer 306 is spaced from the second transducer 306 by a first distance in the distribution and the first transducer 306 is spaced from the third transducer 306 by a second distance in the distribution, the second distance being different than the first distance. In various embodiments, a first region of space that is associated with a physical part of the structure 308 of the transducer-based device 300 is located between the second transducer 306 and the first transducer 306 and a second region of space is that is not associated with any physical part of the structure 308 is located between the first transducer 306 and the third transducer 306. Consequently, in some embodiments involving different transducer spacings, different types of material between transducers, or both different transducer spacings and different types of material between transducers, different target temperatures are associated with the respective transducer sets.
In some embodiments, a value of various ones of the target temperatures is predetermined. In various example embodiments, a sensing device system (e.g., sensing device system 325) detects a detectable attribute (e.g., temperature, a tissue or non-tissue electrical characteristic) at each of a plurality of locations, each of at least two of the plurality of locations at least proximate a respective transducer 306 of the selected pair of transducers 306 (e.g., selected according to block 1402). In some of these various embodiments, determination instructions (not shown) may be configured to cause a determination of a value of each of at least one of the first and the second target temperatures of the respective set of one or more target temperatures associated with the first transducer 306 based at least on the detected attribute at each of at least some of the plurality of locations. In some of these various embodiments, determination instructions (not shown) may be provided that may be configured to cause a determination of a value of each of at least one of the respective target temperatures associated with various transducers 306 based at least on the detected attribute at each of at least some of the plurality of locations. Determination of a particular target temperature may be based at least on transducer data indicating data acquired by at least some of the plurality of transducers 306. For example, target temperature determination instructions (not shown) may be provided to cause determination of a value of the first target temperature, the second target temperature, or both the first and the second target temperatures of the respective set of one or more target temperatures associated with the first transducer 306 or any of the target temperatures associated with any other of the sets of one or more target temperatures based at least on a spatial relationship caused to be determined based at least on the transducer data by positional determination instructions (not shown, but similar to the instructions of block 1304D). In some embodiments, the target temperatures determination instructions may be provided to cause determination of a value of a particular target temperature based at least on a determined proximity of each of at least some of the plurality of transducers 306 to an anatomical feature in a bodily cavity, the determined proximity caused to be determined based at least on the transducer data by proximity determination instructions (not shown but similar to the proximity determination instructions of block 1304E). In some embodiments, determination instructions may be provided to cause determination of a value of a particular target temperature based at least on a determined tissue characteristic caused to be determined based at least on the transducer data by tissue determination instructions (not shown but similar to the instructions of block 1304F). In some embodiments, the energy delivery instructions of block 1406A are configured to cause activation of each of the selected transducers during or after completion of the reception of the transducer data. In various embodiments, different target temperatures may result in different activation time intervals.
Returning for a moment to the above-discussions regarding method 800 of
In this regard,
Accordingly,
Block 1506 includes activation instructions configured to, in response to receiving at least part of the selection (e.g., a sufficient number of the selected at least some of the plurality of transducers (selected, e.g., according to block 1502) to define at least some pairs of the transducers), cause activation of the transducers of each pair of the transducers in the continuous series according to a sequence, the activation including activating the transducers of the first pair of the transducers after activating at least the transducers of the second pair of the transducers and the third pair of the transducers according to the sequence. For example, as compared between
In this example embodiment, the continuous series is associated with a desired ablation path and the first pair of the transducers is spatially arranged in the continuous series between the second and the third pairs of the transducers in the continuous series. In this example embodiment, the first pair of the transducers (e.g., the pair of the transducers associated with the between graphical element 504 identified as “S:7-R:7”) has different transducers than each of the second pair of the transducers (e.g., the pair of transducers associated with the between graphical element 504 identified as “R:6-Q:6”) and the third pair of the transducers (e.g., a pair of the transducers associated with the between graphical element 504 identified as “P:10-Q:10”). In some embodiments, the first pair of the transducers has different transducers than the second pair of the transducers, the third pair of the transducers, or both the second and the third pairs of the transducers. In some example embodiments, the sequence is predetermined.
In some embodiments, at least part of the activating of (a) the second pair of the transducers (e.g., the pair of the transducers associated with the between graphical element 504 identified as “R:6-Q:6”), (b) the third pair of the transducers (e.g., the pair of the transducers associated with the between graphical element 504 identified as “P:10-Q:10”), or both (a) and (b) does not occur during the activating of the first pair of the transducers (e.g., the pair of the transducers associated with the between graphical element 504 identified as “S:7-R:7”). In some embodiments, the activating of the first pair of the transducers (e.g., the pair of the transducers associated with the between graphical element 504 identified as “S:7-R:7”) occurs after completing the activation of (c) the second pair of the transducers (e.g., a pair of transducers associated with the between graphical element 504 identified as “R:6-Q:6”), (d) the third pair of the transducers (e.g., a pair of transducers associated with the between graphical element 504 identified as “P:10-Q:10”), or both (c) and (d) as shown in
In some embodiments, the input-output device system includes a sensing device system (e.g., sensing device system 325) arranged to detect at least one tissue characteristic (e.g., a tissue impedance characteristic) at respective locations at least proximate each of the selected at least some of the plurality of transducers with the energy delivered to each of the selected at least some of the plurality of transducers (e.g., in some embodiments, tissue impedance may be measured between transducers on the structure 308 or between a transducer on the structure 308 and the indifferent electrode 326). In some embodiments, the activating of the first pair of the transducers (e.g., the pair of the transducers associated with the between graphical element 504 identified as “S:7-R:7”) occurs after expiry of a time interval, the time interval commencing after completing: (a) the activating the transducers of the second pair (e.g., a pair of the transducers associated with the between graphical element 504 identified as “R:6-Q:6”), (b) the transducers of the third pair (e.g., a pair of the transducers associated with the between graphical element 504 identified as “P:10-Q:10”), or both (a) and (b). In some embodiments, the time interval is a predetermined time interval. In some embodiments, the input-output device system includes a sensing device system and instructions (e.g., instructions provided in a program) configured to cause the sensing device system to detect a detectable attribute (e.g., temperature, an electrical characteristic, a tissue electrical characteristic) at each of one or more locations, each of the one or more locations at least proximate to a respective one of one or more of the transducers in the distribution. Instructions (not shown) may be provided to cause the data processing device system (e.g., data processing device system 110 or 310) to determine at least an end of the time interval based at least on the detected attribute. The use of a time interval in various embodiments may be motivated by various factors. For example, a time interval sufficient to allow for a cool down period may be employed.
In some embodiments, each of the second and the third pairs of the transducers are activated concurrently as exemplified by the respective pairs of the transducers associated with the between graphical element 504 identified as “R:6-Q:6” and the between graphical element 504 identified as “P:10-Q:10” in
We now turn to embodiments that vary visual characteristics of graphical elements during transducer activation processes. For example, the activation instructions as per block 811 in method 800 in
In this regard,
In this example embodiment, the activation instructions of blocks 810, 811 cause the transmission of energy-delivery instructions (not shown) to cause energy from the energy source device system to be delivered to each of the respective first transducer and second transducer of the corresponding transducer set associated with each of the selected between graphical elements 504.
In
While some of the embodiments disclosed above are described with examples of cardiac mapping, the same or similar embodiments may be used for mapping other bodily organs, for example gastric mapping, bladder mapping, arterial mapping and mapping of any lumen or cavity into which the devices of the present invention may be introduced.
While some of the embodiments disclosed above are described with examples of cardiac ablation, the same or similar embodiments may be used for ablating other bodily organs or any lumen or cavity into which the devices of the present invention may be introduced.
Subsets or combinations of various embodiments described above can provide further embodiments.
These and other changes can be made to the invention in light of the above-detailed description. In general, in the following claims, the terms used should not be construed to limit the invention to the specific embodiments disclosed in the specification and the claims, but should be construed to include other transducer-based device systems including all medical treatment device systems and all medical diagnostic device systems in accordance with the claims. Accordingly, the invention is not limited by the disclosure, but instead its scope is to be determined entirely by the following claims.
This application claims the benefit of each of U.S. Provisional Application No. 61/649,734, filed May 21, 2012; U.S. Provisional Application No. 61/670,881, filed Jul. 12, 2012; and U.S. Provisional Application No. 61/723,311, filed Nov. 6, 2012. The entire disclosure of each of the applications cited in this paragraph is hereby incorporated herein by reference.
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