Surgical instrument comprising an electrode

Information

  • Patent Grant
  • 10098691
  • Patent Number
    10,098,691
  • Date Filed
    Friday, April 24, 2015
    9 years ago
  • Date Issued
    Tuesday, October 16, 2018
    6 years ago
Abstract
A surgical instrument configured to deliver electrical energy to the tissue of a patient is disclosed. The surgical instrument comprises a frame, a first electrode, a second electrode, and a guard movable between a first position and a second position. The surgical instrument further comprises a spring positioned intermediate the guard and the frame. The spring is configured to bias the guard into the first position. When the guard is in the first position, a distal end of the guard is positioned at least flush with distal ends of the first electrode and the second electrode, which prevents current from arcing between the first electrode and the second electrode. When the guard is in the second position, the distal end of the guard is in contact with the tissue, which prevents current from arcing between the first electrode and the second electrode without passing through the tissue.
Description
BACKGROUND

i. Field of the Invention


The present invention generally relates to surgical devices and methods.


ii. Description of the Related Art


Traditional, or open, surgical techniques may require a surgeon to make large incisions in a patient's body in order to access a tissue treatment region, or surgical site. In some instances, these large incisions may prolong the recovery time of and/or increase the scarring to the patient. As a result, minimally invasive surgical techniques are becoming more preferred among surgeons and patients owing to the reduced size of the incisions required for various procedures. In some circumstances, minimally invasive surgical techniques may reduce the possibility that the patient will suffer undesirable post-surgical conditions, such as scarring and/or infections, for example. Further, such minimally invasive techniques can allow the patient to recover more rapidly as compared to traditional surgical procedures.


Endoscopy is one minimally invasive surgical technique which allows a surgeon to view and evaluate a surgical site by inserting at least one cannula, or trocar, into the patient's body through a natural opening in the body and/or through a relatively small incision. In use, an endoscope can be inserted into, or through, the trocar so that the surgeon can observe the surgical site. In various embodiments, the endoscope may include a flexible or rigid shaft, a camera and/or other suitable optical device, and a handle portion. In at least one embodiment, the optical device can be located on a first, or distal, end of the shaft and the handle portion can be located on a second, or proximal, end of the shaft. In various embodiments, the endoscope may also be configured to assist a surgeon in taking biopsies, retrieving foreign objects, and introducing surgical instruments into the surgical site.


Laparoscopic surgery is another minimally invasive surgical technique where procedures in the abdominal or pelvic cavities can be performed through small incisions in the patient's body. A key element of laparoscopic surgery is the use of a laparoscope which typically includes a telescopic lens system that can be connected to a video camera. In various embodiments, a laparoscope can further include a fiber optic system connected to a halogen or xenon light source, for example, in order to illuminate the surgical site. In various laparoscopic, and/or endoscopic, surgical procedures, a body cavity of a patient, such as the abdominal cavity, for example, can be insufflated with carbon dioxide gas, for example, in order to create a temporary working space for the surgeon. In such procedures, a cavity wall can be elevated above the organs within the cavity by the carbon dioxide gas. Carbon dioxide gas is usually used for insufflation because it can be easily absorbed and removed by the body.


In at least one minimally invasive surgical procedure, an endoscope and/or laparoscope can be inserted through a natural opening of a patient to allow a surgeon to access a surgical site. Such procedures are generally referred to as Nature Orifice Transluminal Endoscopic Surgery or (NOTES)™ and can be utilized to treat tissue while reducing the number of incisions, and external scars, to a patient's body. In various NOTES procedures, for example, an endoscope can include at least one working channel defined therein which can be used to allow the surgeon to insert a surgical instrument therethrough in order to access the surgical site.


The foregoing discussion is intended only to illustrate various aspects of the related art in the field of the invention at the time, and should not be taken as a disavowal of claim scope.





FIGURES

Various features of the embodiments described herein are set forth with particularity in the appended claims. The various embodiments, however, both as to organization and methods of operation, together with advantages thereof, may be understood in accordance with the following description taken in conjunction with the accompanying drawings as follows.



FIG. 1 illustrates one embodiment of an electrical ablation system.



FIGS. 2A-D illustrate one embodiment of the electrical ablation system in various phases of deployment.



FIG. 2E illustrates one embodiment of the electrical ablation device comprising multiple needle electrodes.



FIG. 3 illustrates one embodiment of the electrical ablation system shown in FIGS. 1 and 2A-D in use to treat undesirable tissue located on the surface of the liver.



FIG. 4 is a cross-sectional view of a surgical instrument comprising a first electrode, a second electrode, and a retractable sheath movable relative to the first electrode and the second electrode.



FIG. 5 is a perspective view of a distal end of the surgical instrument of FIG. 4 illustrating the sheath in an extended position.



FIG. 6 is a perspective view of a distal end of the surgical instrument of FIG. 4 illustrating the sheath in a retracted position.



FIG. 7 is a perspective view of a distal end of an alternative embodiment of a surgical instrument illustrating a first electrode, a second electrode, and insulative jackets positioned around the first electrode and the second electrode.



FIG. 8 is a cross-sectional view of the surgical instrument of FIG. 7 illustrating the first and second electrodes positioned within tissue and the insulative jackets positioned against the tissue.



FIG. 9 is a perspective view of a distal end of an alternative embodiment of a surgical instrument illustrating a first electrode, a second electrode, and an insulative guard, wherein the insulative guard is movable between an extended positioned in which it is positioned intermediate the distal ends of the first electrode and the second electrode and a retracted position in which it is displaced proximally relative to the distal ends of the first and second electrodes.



FIG. 10 is a cross-sectional view of the surgical instrument of FIG. 9 illustrating the distal ends of the first and second electrodes positioned against tissue and the insulative guard in its extended position.



FIG. 11 is a cross-sectional view of the surgical instrument of FIG. 9 illustrating the distal ends of the first and second electrodes inserted into the tissue and the insulative guard in a retracted position.



FIG. 12 is a perspective view of a distal end of an alternative embodiment of a surgical instrument comprising a flexible electrode.



FIG. 13 illustrates the surgical instrument of FIG. 12 positioned against the liver of a patient at one location and an additional surgical instrument comprising an electrode positioned against the liver at another location.



FIG. 14 illustrates the necrotic regions of liver tissue which can be created by the surgical instrument of FIG. 12 and the additional surgical instrument of FIG. 13.



FIG. 15 is another illustration of the necrotic regions of liver tissue which can be created by the surgical instrument of FIG. 12 and the additional surgical instrument of FIG. 13.



FIG. 16 illustrates an alternative embodiment of a surgical instrument comprising a flexible balloon positioned against the liver of a patient.



FIG. 17 is a perspective view of a distal end of a surgical instrument.



FIG. 18 is an end view of the surgical instrument of FIG. 17.



FIG. 19 is a graph of the voltage field that can be generated by the surgical instrument of FIG. 17.



FIG. 20 is an elevational view of a distal end of a surgical instrument.



FIG. 21 is an end view of the surgical instrument of FIG. 20.





Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate various embodiments of the invention, in one form, and such exemplifications are not to be construed as limiting the scope of the invention in any manner.


DESCRIPTION

Various embodiments are directed to apparatuses, systems, and methods for the electrical ablation treatment of undesirable tissue such as diseased tissue, cancer, malignant and benign tumors, masses, lesions, and other abnormal tissue growths. Numerous specific details are set forth to provide a thorough understanding of the overall structure, function, manufacture, and use of the embodiments as described in the specification and illustrated in the accompanying drawings. It will be understood by those skilled in the art, however, that the embodiments may be practiced without such specific details. In other instances, well-known operations, components, and elements have not been described in detail so as not to obscure the embodiments described in the specification. Those of ordinary skill in the art will understand that the embodiments described and illustrated herein are non-limiting examples, and thus it can be appreciated that the specific structural and functional details disclosed herein may be representative and do not necessarily limit the scope of the embodiments, the scope of which is defined solely by the appended claims.


Reference throughout the specification to “various embodiments,” “some embodiments,” “one embodiment,” or “an embodiment”, or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in various embodiments,” “in some embodiments,” “in one embodiment,” or “in an embodiment”, or the like, in places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, the particular features, structures, or characteristics illustrated or described in connection with one embodiment may be combined, in whole or in part, with the features structures, or characteristics of one or more other embodiments without limitation.


It will be appreciated that the terms “proximal” and “distal” may be used throughout the specification with reference to a clinician manipulating one end of an instrument used to treat a patient. The term “proximal” refers to the portion of the instrument closest to the clinician and the term “distal” refers to the portion located furthest from the clinician. It will be further appreciated that for conciseness and clarity, spatial terms such as “vertical,” “horizontal,” “up,” and “down” may be used herein with respect to the illustrated embodiments. However, surgical instruments may be used in many orientations and positions, and these terms are not intended to be limiting and absolute.


Electrical ablation devices in accordance with the described embodiments may comprise one or more electrodes configured to be positioned into or proximal to undesirable tissue in a tissue treatment region (e.g., target site, worksite) where there is evidence of abnormal tissue growth, for example. In general, the electrodes comprise an electrically conductive portion (e.g., medical grade stainless steel) and are configured to electrically couple to an energy source. Once the electrodes are positioned into or proximal to the undesirable tissue, an energizing potential is applied to the electrodes to create an electric field to which the undesirable tissue is exposed. The energizing potential (and the resulting electric field) may be characterized by multiple parameters such as frequency, amplitude, pulse width (duration of a pulse or pulse length), and/or polarity. Depending on the diagnostic or therapeutic treatment to be rendered, a particular electrode may be configured either as an anode (+) or a cathode (−) or may comprise a plurality of electrodes with at least one configured as an anode and at least one other configured as a cathode. Regardless of the initial polar configuration, the polarity of the electrodes may be reversed by reversing the polarity of the output of the energy source.


In various embodiments, a suitable energy source may comprise an electrical waveform generator, which may be configured to create an electric field that is suitable to create irreversible electroporation in undesirable tissue at various electric filed amplitudes and durations. The energy source may be configured to deliver irreversible electroporation pulses in the form of direct-current (DC) and/or alternating-current (AC) voltage potentials (e.g., time-varying voltage potentials) to the electrodes. The irreversible electroporation pulses may be characterized by various parameters such as frequency, amplitude, pulse length, and/or polarity. The undesirable tissue may be ablated by exposure to the electric potential difference across the electrodes.


In one embodiment, the energy source may comprise a wireless transmitter to deliver energy to the electrodes using wireless energy transfer techniques via one or more remotely positioned antennas. Those skilled in the art will appreciate that wireless energy transfer or wireless power transmission is the process of transmitting electrical energy from an energy source to an electrical load without interconnecting wires. An electrical transformer is the simplest instance of wireless energy transfer. The primary and secondary circuits of a transformer are not directly connected and the transfer of energy takes place by electromagnetic coupling through a process known as mutual induction. Power also may be transferred wirelessly using RF energy. Wireless power transfer technology using RF energy is produced by Powercast, Inc. and can achieve an output of 6 volts for a little over one meter. Other low-power wireless power technology has been proposed such as described in U.S. Pat. No. 6,967,462, the entire disclosure of which is incorporated by reference herein.


The apparatuses, systems, and methods in accordance with certain described embodiments may be configured for minimally invasive ablation treatment of undesirable tissue through the use of irreversible electroporation to be able to ablate undesirable tissue in a controlled and focused manner without inducing thermally damaging effects to the surrounding healthy tissue. The apparatuses, systems, and methods in accordance with the described embodiments may be configured to ablate undesirable tissue through the use of electroporation or electropermeabilization. More specifically, in various embodiments, the apparatuses, systems, and methods in accordance with the described embodiments may be configured to ablate undesirable tissue through the use of irreversible electroporation. Electroporation increases the permeabilization of a cell membrane by exposing the cell to electric pulses. The external electric field (electric potential/per unit length) to which the cell membrane is exposed to significantly increases the electrical conductivity and permeability of the plasma in the cell membrane. The primary parameter affecting the transmembrane potential is the potential difference across the cell membrane. Irreversible electroporation is the application of an electric field of a specific magnitude and duration to a cell membrane such that the permeabilization of the cell membrane cannot be reversed, leading to cell death without inducing a significant amount of heat in the surrounding tissue. The destabilizing potential forms pores in the cell membrane when the potential across the cell membrane exceeds its critical membrane voltage causing the cell to die under a process known as apoptosis and/or necrosis. The application of irreversible electroporation pulses to cells is an effective way for ablating large volumes of undesirable tissue without deleterious thermal effects to the surrounding healthy tissue associated with thermal-inducing ablation treatments. This is because irreversible electroporation destroys cells without heat and thus does not destroy the cellular support structure or regional vasculature. A destabilizing irreversible electroporation pulse, suitable to cause cell death without inducing a significant amount of thermal damage to the surrounding healthy tissue, may have amplitude in the range of about several hundred to about several thousand volts and is generally applied across biological membranes over a distance of about several millimeters, for example, for a relatively long duration. Thus, the undesirable tissue may be ablated in-vivo through the delivery of destabilizing electric fields by quickly creating cell necrosis.


The apparatuses, systems, and methods for electrical ablation therapy in accordance with the described embodiments may be adapted for use in minimally invasive surgical procedures to access the tissue treatment region in various anatomic locations such as the brain, lungs, breast, liver, gall bladder, pancreas, prostate gland, and various internal body lumen defined by the esophagus, stomach, intestine, colon, arteries, veins, anus, vagina, cervix, fallopian tubes, and the peritoneal cavity, for example, without limitation. Minimally invasive electrical ablation devices may be introduced to the tissue treatment region using a trocar inserted though a small opening formed in the patient's body or through a natural body orifice such as the mouth, anus, or vagina using translumenal access techniques known as Natural Orifice Translumenal Endoscopic Surgery (NOTES)™. Once the electrical ablation devices (e.g., electrodes) are located into or proximal to the undesirable tissue in the treatment region, electric field potentials can be applied to the undesirable tissue by the energy source. The electrical ablation devices can comprise portions that may be inserted into the tissue treatment region percutaneously (e.g., where access to inner organs or other tissue is done via needle-puncture of the skin). Other portions of the electrical ablation devices may be introduced into the tissue treatment region endoscopically (e.g., laparoscopically and/or thoracoscopically) through trocars or working channels of the endoscope, through small incisions, or transcutaneously (e.g., where electric pulses are delivered to the tissue treatment region through the skin).



FIG. 1 illustrates one embodiment of an electrical ablation system 10. The electrical ablation system 10 may be employed to ablate undesirable tissue such as diseased tissues, cancers, tumors, masses, lesions, abnormal tissue growths inside a patient using electrical energy. The electrical ablation system 10 may be used in conjunction with endoscopic, laparoscopic, thoracoscopic, open surgical procedures via small incisions or keyholes, percutaneous techniques, transcutaneous techniques, and/or external non-invasive techniques, or any combinations thereof without limitation. The electrical ablation system 10 may be configured to be positioned within a natural body orifice of the patient such as the mouth, anus, or vagina and advanced through internal body lumen or cavities such as the esophagus, colon, cervix, urethra, for example, to reach the tissue treatment region. The electrical ablation system 10 also may be configured to be positioned and passed through a small incision or keyhole formed through the skin or abdominal wall of the patient to reach the tissue treatment region using a trocar. The tissue treatment region may be located in the brain, lungs, breast, liver, gall bladder, pancreas, prostate gland, various internal body lumen defined by the esophagus, stomach, intestine, colon, arteries, veins, anus, vagina, cervix, fallopian tubes, and the peritoneal cavity, for example, without limitation. The electrical ablation system 10 can be configured to treat a number of lesions and ostepathologies comprising metastatic lesions, tumors, fractures, infected sites, and/or inflamed sites. Once positioned into or proximate the tissue treatment region, the electrical ablation system 10 can be actuated (e.g., energized) to ablate the undesirable tissue. In one embodiment, the electrical ablation system 10 may be configured to treat diseased tissue in the gastrointestinal (GI) tract, esophagus, lung, or stomach that may be accessed orally. In another embodiment, the electrical ablation system 10 may be adapted to treat undesirable tissue in the liver or other organs that may be accessible using translumenal access techniques such as, without limitation, NOTES™ techniques, where the electrical ablation devices may be initially introduced through a natural orifice such as the mouth, anus, or vagina and then advanced to the tissue treatment site by puncturing the walls of internal body lumen such as the stomach, intestines, colon, cervix. In various embodiments, the electrical ablation system 10 may be adapted to treat undesirable tissue in the brain, liver, breast, gall bladder, pancreas, or prostate gland, using one or more electrodes positioned percutaneously, transcutaneously, translumenally, minimally invasively, and/or through open surgical techniques, or any combination thereof.


In one embodiment, the electrical ablation system 10 may be employed in conjunction with a flexible endoscope 12, as well as a rigid endoscope, laparoscope, or thoracoscope, such as the GIF-100 model available from Olympus Corporation. In one embodiment, the endoscope 12 may be introduced to the tissue treatment region trans-anally through the colon, trans-orally through the esophagus and stomach, trans-vaginally through the cervix, transcutaneously, or via an external incision or keyhole formed in the abdomen in conjunction with a trocar. The electrical ablation system 10 may be inserted and guided into or proximate the tissue treatment region using the endoscope 12.


In the embodiment illustrated in FIG. 1, the endoscope 12 comprises an endoscope handle 34 and an elongate relatively flexible shaft 32. The distal end of the flexible shaft 32 may comprise a light source and a viewing port. Optionally, the flexible shaft 32 may define one or more working channels for receiving various instruments, such as electrical ablation devices, for example, therethrough. Images within the field of view of the viewing port are received by an optical device, such as a camera comprising a charge coupled device (CCD) usually located within the endoscope 12, and are transmitted to a display monitor (not shown) outside the patient.


In one embodiment, the electrical ablation system 10 may comprise an electrical ablation device 20, a plurality of electrical conductors 18, a handpiece 16 comprising an activation switch 62, and an energy source 14, such as an electrical waveform generator, electrically coupled to the activation switch 62 and the electrical ablation device 20. The electrical ablation device 20 comprises a relatively flexible member or shaft 22 that may be introduced to the tissue treatment region using a variety of known techniques such as an open incision and a trocar, through one of more of the working channels of the endoscope 12, percutaneously, or transcutaneously, for example.


In one embodiment, one or more electrodes (e.g., needle electrodes, balloon electrodes), such as first and second electrodes 24a,b, extend out from the distal end of the electrical ablation device 20. In one embodiment, the first electrode 24a may be configured as the positive electrode and the second electrode 24b may be configured as the negative electrode. The first electrode 24a is electrically connected to a first electrical conductor 18a, or similar electrically conductive lead or wire, which is coupled to the positive terminal of the energy source 14 through the activation switch 62. The second electrode 24b is electrically connected to a second electrical conductor 18b, or similar electrically conductive lead or wire, which is coupled to the negative terminal of the energy source 14 through the activation switch 62. The electrical conductors 18a,b are electrically insulated from each other and surrounding structures, except for the electrical connections to the respective electrodes 24a,b. In various embodiments, the electrical ablation device 20 may be configured to be introduced into or proximate the tissue treatment region using the endoscope 12 (laparoscope or thoracoscope), open surgical procedures, or external and non-invasive medical procedures. The electrodes 24a,b may be referred to herein as endoscopic or laparoscopic electrodes, although variations thereof may be inserted transcutaneously or percutaneously. As previously discussed, either one or both electrodes 24a,b may be adapted and configured to slideably move in and out of a cannula, lumen, or channel defined within the flexible shaft 22.


Once the electrodes 24a,b are positioned at the desired location into or proximate the tissue treatment region, the electrodes 24a,b may be connected to or disconnected from the energy source 14 by actuating or de-actuating the switch 62 on the handpiece 16. The switch 62 may be operated manually or may be mounted on a foot switch (not shown), for example. The electrodes 24a,b deliver electric field pulses to the undesirable tissue. The electric field pulses may be characterized based on various parameters such as pulse shape, amplitude, frequency, and duration. The electric field pulses may be sufficient to induce irreversible electroporation in the undesirable tissue. The induced potential depends on a variety of conditions such as tissue type, cell size, and electrical pulse parameters. The primary electrical pulse parameter affecting the transmembrane potential for a specific tissue type is the amplitude of the electric field and pulse length that the tissue is exposed to.


In one embodiment, a protective sleeve or sheath 26 may be slideably disposed over the flexible shaft 22 and within a handle 28. In another embodiment, the sheath 26 may be slideably disposed within the flexible shaft 22 and the handle 28, without limitation. The sheath 26 is slideable and may be located over the electrodes 24a,b to protect the trocar and prevent accidental piercing when the electrical ablation device 20 is advanced therethrough. Either one or both of the electrodes 24a,b of the electrical ablation device 20 may be adapted and configured to slideably move in and out of a cannula, lumen, or channel formed within the flexible shaft 22. The second electrode 24b may be fixed in place. The second electrode 24b may provide a pivot about which the first electrode 24a can be moved in an arc to other points in the tissue treatment region to treat larger portions of the diseased tissue that cannot be treated by fixing the electrodes 24a,b in one location. In one embodiment, either one or both of the electrodes 24a,b may be adapted and configured to slideably move in and out of a working channel formed within a flexible shaft 32 of the flexible endoscope 12 or may be located independently of the flexible endoscope 12. Various features of the first and second electrodes 24a,b are described in more detail in FIGS. 2A-D.


In one embodiment, the first and second electrical conductors 18a,b may be provided through the handle 28. In the illustrated embodiment, the first electrode 24a can be slideably moved in and out of the distal end of the flexible shaft 22 using a slide member 30 to retract and/or advance the first electrode 24a. In various embodiments either or both electrodes 24a,b may be coupled to the slide member 30, or additional slide members, to advance and retract the electrodes 24a,b, e.g., position the electrodes 24a,b. In the illustrated embodiment, the first electrical conductor 18a coupled to the first electrode 24a is coupled to the slide member 30. In this manner, the first electrode 24a, which is slideably movable within the cannula, lumen, or channel defined by the flexible shaft 22, can advanced and retracted with the slide member 30.


In various other embodiments, transducers or sensors may be located in the handle 28 of the electrical ablation device 20 to sense the force with which the electrodes 24a,b penetrate the tissue in the tissue treatment zone. This feedback information may be useful to determine whether either one or both of the electrodes 24a,b have been properly inserted in the tissue treatment region. As is particularly well known, cancerous tumor tissue tends to be denser than healthy tissue and thus greater force is required to insert the electrodes 24a,b therein. The transducers or sensors 29 can provide feedback to the operator, surgeon, or clinician to physically sense when the electrodes 24a,b are placed within the cancerous tumor. The feedback information provided by the transducers or sensors 29 may be processed and displayed by circuits located either internally or externally to the energy source 14. The sensor 29 readings may be employed to determine whether the electrodes 24a,b have been properly located within the cancerous tumor thereby assuring that a suitable margin of error has been achieved in locating the electrodes 24a,b.


In one embodiment, the input to the energy source 14 may be connected to a commercial power supply by way of a plug (not shown). The output of the energy source 14 is coupled to the electrodes 24a,b, which may be energized using the activation switch 62 on the handpiece 16, or in one embodiment, an activation switch mounted on a foot activated pedal (not shown). The energy source 14 may be configured to produce electrical energy suitable for electrical ablation, as described in more detail below.


In one embodiment, the electrodes 24a,b are adapted and configured to electrically couple to the energy source 14 (e.g., generator, waveform generator). Once electrical energy is coupled to the electrodes 24a,b, an electric field is formed in the tissue from the voltage applied at the electrodes 24a,b. The energy source 14 may be configured to generate electric pulses at a predetermined frequency, amplitude, pulse length, and/or polarity that are suitable to induce irreversible electroporation to ablate substantial volumes of undesirable tissue in the treatment region. For example, the energy source 14 may be configured to deliver DC electric pulses having a predetermined frequency, amplitude, pulse length, and/or polarity suitable to induce irreversible electroporation to ablate substantial volumes of undesirable tissue in the treatment region. The DC pulses may be positive or negative relative to a particular reference polarity. The polarity of the DC pulses may be reversed or inverted from positive-to-negative or negative-to-positive a predetermined number of times to induce irreversible electroporation to ablate substantial volumes of undesirable tissue in the treatment region.


In one embodiment, a timing circuit may be coupled to the output of the energy source 14 to generate electric pulses. The timing circuit may comprise one or more suitable switching elements to produce the electric pulses. For example, the energy source 14 may produce a series of n electric pulses (where n is any positive integer) of sufficient amplitude and duration to induce irreversible electroporation suitable for tissue ablation when the n electric pulses are applied to the electrodes 24a,b. In one embodiment, the electric pulses may have a fixed or variable pulse length, amplitude, and/or frequency.


The electrical ablation device 20 may be operated either in bipolar or monopolar mode. In bipolar mode, the first electrode 24a is electrically connected to a first polarity and the second electrode 24b is electrically connected to the opposite polarity. For example, in monopolar mode, the first electrode 24a is coupled to a prescribed voltage and the second electrode 24b is set to ground. In the illustrated embodiment, the energy source 14 may be configured to operate in either the bipolar or monopolar modes with the electrical ablation system 10. In bipolar mode, the first electrode 24a is electrically connected to a prescribed voltage of one polarity and the second electrode 24b is electrically connected to a prescribed voltage of the opposite polarity. When more than two electrodes are used, the polarity of the electrodes may be alternated so that any two adjacent electrodes may have either the same or opposite polarities, for example.


In monopolar mode, it is not necessary that the patient be grounded with a grounding pad. Since a monopolar energy source 14 is typically constructed to operate upon sensing a ground pad connection to the patient, the negative electrode of the energy source 14 may be coupled to an impedance simulation circuit. In this manner, the impedance circuit simulates a connection to the ground pad and thus is able to activate the energy source 14. It will be appreciated that in monopolar mode, the impedance circuit can be electrically connected in series with either one of the electrodes 24a,b that would otherwise be attached to a grounding pad.


In one embodiment, the energy source 14 may be configured to produce RF waveforms at predetermined frequencies, amplitudes, pulse widths or durations, and/or polarities suitable for electrical ablation of cells in the tissue treatment region. One example of a suitable RF energy source is a commercially available conventional, bipolar/monopolar electrosurgical RF generator such as Model Number ICC 350, available from Erbe, GmbH.


In one embodiment, the energy source 14 may be configured to produce destabilizing electrical potentials (e.g., fields) suitable to induce irreversible electroporation. The destabilizing electrical potentials may be in the form of bipolar/monopolar DC electric pulses suitable for inducing irreversible electroporation to ablate tissue undesirable tissue with the electrical ablation device 20. A commercially available energy source suitable for generating irreversible electroporation electric field pulses in bipolar or monopolar mode is a pulsed DC generator such as Model Number ECM 830, available from BTX Molecular Delivery Systems Boston, Mass. In bipolar mode, the first electrode 24a may be electrically coupled to a first polarity and the second electrode 24b may be electrically coupled to a second (e.g., opposite) polarity of the energy source 14. Bipolar/monopolar DC electric pulses may be produced at a variety of frequencies, amplitudes, pulse lengths, and/or polarities. Unlike RF ablation systems, however, which require high power and energy levels delivered into the tissue to heat and thermally destroy the tissue, irreversible electroporation requires very little energy input into the tissue to kill the undesirable tissue without the detrimental thermal effects because with irreversible electroporation the cells are destroyed by electric field potentials rather than heat.


In one embodiment, the energy source 14 may be coupled to the first and second electrodes 24a,b by either a wired or a wireless connection. In a wired connection, the energy source 14 is coupled to the electrodes 24a,b by way of the electrical conductors 18a,b, as shown. In a wireless connection, the electrical conductors 18a,b may be replaced with a first antenna (not shown) coupled the energy source 14 and a second antenna (not shown) coupled to the electrodes 24a,b, wherein the second antenna is remotely located from the first antenna.


In one embodiment, the energy source may comprise a wireless transmitter to deliver energy to the electrodes using wireless energy transfer techniques via one or more remotely positioned antennas. As previously discussed, wireless energy transfer or wireless power transmission is the process of transmitting electrical energy from the energy source 14 to an electrical load, e.g., the abnormal cells in the tissue treatment region, without using the interconnecting electrical conductors 18a,b. An electrical transformer is the simplest instance of wireless energy transfer. The primary and secondary circuits of a transformer are not directly connected. The transfer of energy takes place by electromagnetic coupling through a process known as mutual induction. Wireless power transfer technology using RF energy is produced by Powercast, Inc. The Powercast system can achieve a maximum output of 6 volts for a little over one meter. Other low-power wireless power technology has been proposed such as described in U.S. Pat. No. 6,967,462.


In one embodiment, the energy source 14 may be configured to produce DC electric pulses at frequencies in the range of about 1 Hz to about 10000 Hz, amplitudes in the range of about ±100 to about ±3000 VDC, and pulse lengths (e.g., pulse width, pulse duration) in the range of about 1 μs to about 100 ms. The polarity of the electric potentials coupled to the electrodes 24a,b may be reversed during the electrical ablation therapy. For example, initially, the DC electric pulses may have a positive polarity and an amplitude in the range of about +100 to about +3000 VDC. Subsequently, the polarity of the DC electric pulses may be reversed such that the amplitude is in the range of about −100 to about −3000 VDC. In one embodiment, the undesirable cells in the tissue treatment region may be electrically ablated with DC pulses suitable to induce irreversible electroporation at frequencies of about 10 Hz to about 100 Hz, amplitudes in the range of about +700 to about +1500 VDC, and pulse lengths of about 10 μs to about 50 μs. In another embodiment, the abnormal cells in the tissue treatment region may be electrically ablated with an electrical waveform having an amplitude of about +500 VDC and pulse duration of about 20 ms delivered at a pulse period T or repetition rate, frequency f=1/T, of about 10 Hz. It has been determined that an electric field strength of 1,000V/cm is suitable for destroying living tissue by inducing irreversible electroporation.



FIGS. 2A-D illustrate one embodiment of the electrical ablation device 20 in various phases of deployment. In the embodiment illustrated in FIGS. 2A-D, the sheath 26 is disposed over the flexible shaft 22, however, those skilled in the art will appreciate that the sheath 26 may be disposed within the flexible shaft 22. The electrical ablation device 20 may be used in conjunction with the electrical ablation system 10 shown in FIG. 1. It will be appreciated that other devices and electrode configurations may be employed without limitation. FIG. 2A illustrates an initial phase of deployment wherein the sheath 26 is extended in the direction indicated by arrow 40 to cover the electrodes 24a,b. The electrodes 24a,b may have dimensions of about 0.5 mm, about 1 mm, or about 1.5 mm in diameter. It will be appreciated that the dimensions of the electrodes 24a,b may be anywhere from about 0.5 mm to about 1.5 mm in diameter. The electrical ablation device 20 may be introduced into the tissue treatment region through a trocar, as illustrated in FIG. 3, for example. FIG. 2B illustrates another phase of deployment wherein the sheath 26 is retracted within the handle 28 in the direction indicated by arrow 42. In this phase of deployment, the first and second electrodes 24a,b extend through the distal end of the flexible shaft 22 and are ready to be inserted into or proximate the tissue treatment region. The first electrode 24a may be retracted in direction 42 through a lumen 44 formed in the flexible shaft 22 by holding the handle 28 and pulling on the slide member 30. FIG. 2C illustrates a transition phase wherein the first electrode 24a is the process of being retracted in direction 42 by pulling on the slide member 30 handle, for example, in the same direction. FIG. 2D illustrates another phase of deployment wherein the first electrode 24a is in a fully retracted position. In this phase of deployment the electrical ablation device 20 can be pivotally rotated about an axis 46 defined by the second electrode 24b. The electrodes 24a,b are spaced apart by a distance “r.” The distance “r” between the electrodes 24a,b may be 5.0 mm, about 7.5 mm, or about 10 mm. It will be appreciated that the distance “r” between the electrodes 24a,b may be anywhere from about 5.0 mm to about 10.0 mm. Thus, the electrical ablation device 20 may be rotated in an arc about the pivot formed by the second electrode 24b, the first electrode 24a may be placed in a new location in the tissue treatment region within the radius “r.” Retracting the first electrode 24a and pivoting about the second electrode 24b enables the surgeon or clinician to target and treat a larger tissue treatment region essentially comprising a circular region having a radius “r,” which is the distance between the electrodes 24a,b. Thus, the electrodes 24a,b may be located in a plurality of positions in and around the tissue treatment region in order to treat much larger regions of tissue. Increasing the electrode 24a,b diameter and spacing the electrodes 24a,b further apart enables the generation of an electric field over a much larger tissue regions and thus the ablation of larger volumes of undesirable tissue. In this manner, the operator can treat a larger tissue treatment region comprising cancerous lesions, polyps, or tumors, for example.


Although the electrical ablation electrodes according to the described embodiments have been described in terms of the particular needle type electrodes 24a,b as shown and described in FIGS. 1 and 2A-D, those skilled in the art will appreciate that other configurations of electrical ablation electrodes may be employed for the ablation of undesirable tissue, without limitation. In one embodiment, the electrical ablation device 20 may comprise two or more fixed electrodes that are non-retractable. In another embodiment, the electrical ablation device 20 may comprise two or more retractable electrodes, one embodiment of which is described below with reference to FIG. 2E. In another embodiment, the electrical ablation device 20 may comprise at least one slideable electrode disposed within at least one working channel of the flexible shaft 32 of the endoscope 12. In another embodiment, the electrical ablation device 20 may comprise at least one electrode may be configured to be inserted into the tissue treatment region transcutaneously or percutaneously. Still in various other embodiments, the electrical ablation device 20 may comprise at least one electrode configured to be introduced to the tissue treatment region transcutaneously or percutaneously and at least one other electrode may be configured to be introduced to the tissue treatment region through at least one working channel of the flexible shaft 32 of the endoscope 12. The embodiments, however, are not limited in this context.



FIG. 2E illustrates one embodiment of an electrical ablation device 100 comprising multiple needle electrodes 124m, where m is any positive integer. In the illustrated embodiment, the electrical ablation device 100 comprises four electrodes 124a, 124b, 124c, 124d. It will be appreciated that in one embodiment, the electrical ablation device 800 also may comprise three needle electrodes 124a, 124b, 124c, without limitation. The electrical ablation device 100 may be used in conjunction with the electrical ablation system 10 shown in FIG. 1. It will be appreciated that other devices and electrode configurations may be employed without limitation. The electrodes 124a-m each may have dimensions of about 0.5 mm, about 1 mm, or about 1.5 mm in diameter. It will be appreciated that the dimensions of each of the electrodes 124a-m may be anywhere from about 0.5 mm to about 1.5 mm in diameter. The electrical ablation device 100 may be introduced into the tissue treatment region through a trocar, as subsequently described and illustrated with reference to FIG. 3, for example.


The electrical ablation device 100 comprises essentially the same components as the electrical ablation device 20 described with reference to FIGS. 2A-D. The electrical ablation device 100 comprises the relatively flexible member or shaft 22, the protective sheath 26, and one or more handles 28 to operate either the sheath 26, the electrodes 124a,b,c,d, or both. The electrodes 124a,b,c,d may be individually or simultaneously deployable and/or retractable in the direction indicated by arrow 142. The electrodes 124a,b,c,d extend out from the distal end of the electrical ablation device 100. In one embodiment, the first and second electrodes 124a, 124b may be configured as the positive electrode coupled to the anode of the energy source 14 via corresponding first and second electrical conductors 118a, 118b, and the third and fourth electrodes 124c, 124d may be configured as the negative electrode coupled to the cathode of the energy source 14 via corresponding third and fourth electrical conductors 118c, 118d, or similar electrically conductive leads or wires, through the activation switch 62. Once the electrodes 124a,b,c,d are positioned at the desired location into or proximate the tissue treatment region, the electrodes 124a,b,c,d may be connected/disconnected from the energy source 14 by actuating/de-actuating the switch 62.


As previously discussed with reference to FIGS. 2A-D, as shown in FIG. 2E in one embodiment, the protective sleeve or sheath 26 may be slideably disposed over the flexible shaft 22 and within the handle 28. In an initial phase of deployment, the sheath 26 is extended in direction 40 to cover the electrodes 124a,b,c,d to protect the trocar and prevent accidental piercing when the electrical ablation device 100 is advanced therethrough. Once the electrodes 124a,b,c,d are located into or proximate the tissue treatment region, the sheath 26 is retracted in direction 42 to expose the electrodes 124a,b,c,d. One or more of the electrodes 124a,b,c,d of the electrical ablation device 100 may be adapted and configured to slideably move in and out of a cannula, lumen, or channel formed within the flexible shaft 22. In one embodiment all of the electrodes 124a,b,c,d are configured to slideably move in and out channels formed within lumens formed within the flexible shaft 22, referred to for example as the lumen 44 in FIGS. 2A-D, to advance and retract the electrodes 124a,b,c,d as may be desired by the operator. Nevertheless, in other embodiments, it may be desired to fix all or certain ones of the one or more electrodes 124a,b,c,d in place.


The various embodiments of electrodes described in the present specification, e.g., the electrodes 24a,b, or 124a-m, may be configured for use with an electrical ablation device (not shown) comprising an elongated flexible shaft to house the needle electrodes 24a,b, or 124a-m, for example. The needle electrodes 24a,b, or 124a-m, are free to extend past a distal end of the electrical ablation device. The flexible shaft comprises multiple lumen formed therein to slideably receive the needle electrodes 24a,b, or 124a-m. A flexible sheath extends longitudinally from a handle portion to the distal end. The handle portion comprises multiple slide members received in respective slots defining respective walls. The slide members are coupled to the respective needle electrodes 24a,b, or 124a-m. The slide members are movable to advance and retract the electrode 24a,b, or 124a-m. The needle electrodes 24a,b, or 124a-m, may be independently movable by way of the respective slide members. The needle electrodes 24a,b, or 124a-m, may be deployed independently or simultaneously. An electrical ablation device (not shown) comprising an elongated flexible shaft to house multiple needle electrodes and a suitable handle is described with reference to FIGS. 4-10 in commonly owned U.S. patent application Ser. No. 11/897,676 titled “ELECTRICAL ABLATION SURGICAL INSTRUMENTS,” filed Aug. 31, 2007, now U.S. Patent Application Publication No. 2009/0062788, the entire disclosure of which is incorporated herein by reference in its entirety.


It will be appreciated that the electrical ablation devices 20, 100 described with referenced to FIGS. 2A-E, may be introduced inside a patient endoscopically, transcutaneously, percutaneously, through an open incision, through a trocar (as shown in FIG. 3), through a natural orifice, or any combination thereof. In one embodiment, the outside diameter of the electrical ablation devices 20, 100 may be sized to fit within a working channel of an endoscope and in other embodiments the outside diameter of the electrical ablation devices 20, 100 may be sized to fit within a hollow outer sleeve, or trocar, for example.



FIG. 3 illustrates one embodiment of the electrical ablation system 10 shown in FIGS. 1 and 2A-D in use to treat undesirable tissue 48 located on the surface of the liver 50. The undesirable tissue 48 may be representative of a variety of diseased tissues, cancers, tumors, masses, lesions, abnormal tissue growths, for example. In use, the electrical ablation device 20 may be introduced into or proximate the tissue treatment region through a port 52 of a trocar 54. The trocar 54 is introduced into the patient via a small incision 59 formed in the skin 56. The endoscope 12 may be introduced into the patient trans-anally through the colon, trans-orally down the esophagus and through the stomach using translumenal techniques, or through a small incision or keyhole formed through the patient's abdominal wall (e.g., the peritoneal wall). The endoscope 12 may be employed to guide and locate the distal end of the electrical ablation device 20 into or proximate the undesirable tissue 48. Prior to introducing the flexible shaft 22 through the trocar 54, the sheath 26 is slid over the flexible shaft 22 in a direction toward the distal end thereof to cover the electrodes 24a,b (as shown in FIG. 2A) until the distal end of the electrical ablation device 20 reaches the undesirable tissue 48.


Once the electrical ablation device 20 has been suitably introduced into or proximate the undesirable tissue 48, the sheath 26 is retracted to expose the electrodes 24a,b (as shown in FIG. 2B) to treat the undesirable tissue 48. To ablate the undesirable tissue 48, the operator initially may locate the first electrode 24a at a first position 58a and the second electrode 24b at a second position 60 using endoscopic visualization and maintaining the undesirable tissue 48 within the field of view of the flexible endoscope 12. The first position 58a may be near a perimeter edge of the undesirable tissue 48. Once the electrodes 24a,b are located into or proximate the undesirable tissue 48, the electrodes 24a,b are energized with irreversible electroporation pulses to create a first necrotic zone 65a. For example, once the first and second electrodes 24a,b are located in the desired positions 60 and 58a, the undesirable tissue 48 may be exposed to an electric field generated by energizing the first and second electrodes 24a,b with the energy source 14. The electric field may have a magnitude, frequency, and pulse length suitable to induce irreversible electroporation in the undesirable tissue 48 within the first necrotic zone 65a. The size of the necrotic zone is substantially dependent on the size and separation of the electrodes 24a,b, as previously discussed. The treatment time is defined as the time that the electrodes 24a,b are activated or energized to generate the electric pulses suitable for inducing irreversible electroporation in the undesirable tissue 48.


This procedure may be repeated to destroy relatively larger portions of the undesirable tissue 48. The position 60 may be taken as a pivot point about which the first electrode 24a may be rotated in an arc of radius “r,” the distance between the first and second electrodes 24a,b. Prior to rotating about the second electrode 24b, the first electrode 24a is retracted by pulling on the slide member 30 (FIGS. 1 and 2A-D) in a direction toward the proximal end and rotating the electrical ablation device 20 about the pivot point formed at position 60 by the second electrode 24b. Once the first electrode 24a is rotated to a second position 58b, it is advanced to engage the undesirable tissue 48 at point 58b by pushing on the slide member 30 in a direction towards the distal end. A second necrotic zone 65b is formed upon energizing the first and second electrodes 24a,b. A third necrotic zone 65c is formed by retracting the first electrode 24a, pivoting about pivot point 60 and rotating the first electrode 24a to a new location, advancing the first electrode 24a into the undesirable tissue 48 and energizing the first and second electrodes 24a,b. This process may be repeated as often as necessary to create any number of necrotic zones 65p, where p is any positive integer, within multiple circular areas of radius “r,” for example, that is suitable to ablate the entire undesirable tissue 48 region. At anytime, the surgeon or clinician can reposition the first and second electrodes 24a,b and begin the process anew. In other embodiments, the electrical ablation device 100 comprising multiple needle electrodes 124a-m described with reference to FIG. 2E may be employed to treat the undesirable tissue 48. Those skilled in the art will appreciate that similar techniques may be employed to ablate any other undesirable tissues that may be accessible trans-anally through the colon, and/or orally through the esophagus and the stomach using translumenal access techniques. Therefore, the embodiments are not limited in this context.


In various embodiments, as outlined above, a surgical instrument can comprise a first electrode and a second electrode, wherein at least one the first and second electrodes can be operably coupled to a power source. In certain embodiments, as also outlined above, a first electrode can be operably coupled with a positive terminal of a voltage source and the second electrode can be operably coupled with a negative terminal of the voltage source, for example. In at least one embodiment, the first and second electrodes can comprise columnar, or point, electrodes which can be inserted into the tissue of a patient. In various circumstances, a voltage potential can be applied to the two electrodes such that a magnetic field can be created therebetween in order to treat the tissue positioned intermediate the electrodes. In some circumstances, the voltage potential may be sufficient to permit current to flow between the electrodes. Various devices are disclosed in commonly-owned co-pending U.S. patent application Ser. No. 12/352,375, entitled ELECTRICAL ABLATION DEVICES, which was filed on Jan. 12, 2009, the entire disclosure of which is incorporated by reference herein. While such devices may be suitable for their intended purposes, other devices disclosed herein can provide various advantages.


In various embodiments, referring now to FIGS. 4-6, a surgical instrument, such as surgical instrument 200, for example, can comprise a handle portion 228, a shaft portion 222, and one or more electrodes, such as electrodes 224a and 224b, for example. Referring to FIG. 4, handle portion 228 can comprise a first portion 231 and a second portion 233, wherein the first portion 231 and the second portion 233 can be moved relative to one another. Electrodes 224a and 224b can be mounted, or rigidly secured, to the first portion 231 wherein, in at least one embodiment, proximal ends of electrodes 224a and 224b can be mounted to first portion 231 such that the proximal ends of the electrodes do not move relative to first portion 231. In at least one embodiment, a sheath 226 of shaft portion 222 can be mounted, or rigidly secured, to second portion 233 such that, when second portion 233 is moved relative to first portion 231, sheath 226 can be moved relative to first electrode 224a and/or second electrode 224b. In various embodiments, second portion 233 can be moved between a first, or distal, position (FIG. 5) in which the distal end 223 of sheath 226 surrounds the distal ends 235a, 235b of electrodes 224a, 224b and a second, or proximal, position (FIG. 6) in which the distal end 223 of sheath 226 is retracted relative to the distal ends 235a, 235b of electrodes 224a, 224b.


In various embodiments, further to the above, sheath 226 can be moved between a distal position in which the distal ends 235a, 235b of electrodes 224a, 224b are positioned within the sheath 226 and a proximal position in which the distal ends 235a, 235b can extend distally from the distal end 223 of sheath 226. In at least one embodiment, the distal ends 235a, 235b of electrodes 224a, 224b can be recessed with respect to the distal end 223 of sheath 226 when sheath 226 is in its distal position. In use, the distal end 223 of sheath 226 can be positioned against tissue within a surgical site, for example, such that the electrodes 224a, 224b do not contact the tissue. Such embodiments may also allow the surgical instrument 200, or at least the distal end thereof, to be inserted through a trocar without the electrodes 224a, 224b coming into contact with, snagging on, and/or becoming damaged by the trocar. Once the distal end of the surgical instrument 200 has been suitably positioned relative to the targeted tissue, the sheath 226 can be retracted in order to expose the distal ends 235a, 235b of the electrodes 224a, 224b such that the electrodes can be inserted into the tissue. In various alternative embodiments, the distal ends 235a, 235b of electrodes 224a, 224b can be positioned in the same plane as the distal end of sheath 226 when the sheath 226 is in its distal-most position.


In various embodiments, as outlined above, the second portion 233 of handle 228 can be moved relative to the first portion 231 of handle 228 in order to move the sheath 226 relative to the electrodes 224a, 224b. In various circumstances, referring again to FIG. 4, the first portion 231 can be held in a stationary, or at least substantially stationary, position while the second portion 233 can be slid relative to first portion 231 by a surgeon, or other clinician, for example. In at least one embodiment, the first portion 231 can comprise a cylindrical, or at least substantially cylindrical, portion 235 and the second portion 233 can comprise a cylindrical, or at least substantially cylindrical, aperture 237 configured to receive the cylindrical portion 235 of first portion 231. The aperture 237 can be configured to closely receive cylindrical portion 235 such that relative movement therebetween can be limited to relative movement along a predetermined path, such as axis 239, for example. In certain embodiments, first portion 231 and second portion 233 can comprise one or more cooperating keys and/or grooves which can be configured to permit relative sliding movement therebetween along axis 239 while preventing, or at least inhibiting, relative movement therebetween which is transverse to axis 239.


In various embodiments, referring now to FIG. 7, a surgical instrument, such as surgical instrument 300, for example, can comprise a sheath 326 and one or more electrodes, such as electrodes 324a and 324b, for example. In use, similar to the above, the electrodes 324a and 324b can be inserted into tissue and a voltage differential can be applied to the electrodes such that current can flow from one electrode to the other and, in addition, flow through the tissue positioned intermediate and/or surrounding the electrodes 324a and 324b. In various embodiments, at least one electrode can comprise an insulative jacket surrounding at least a portion of the electrode such that current does not arc, or jump, between the electrodes of the surgical instrument without flowing through the tissue. In certain embodiments, such as those having two electrodes, for example, an insulative jacket may surround only one of the electrodes, wherein such an insulative jacket can be sufficient to prevent current from arcing between the electrodes. In at least one embodiment, an insulative jacket 341a can surround at least a portion of electrode 324a and, similarly, an insulative jacket 341b can surround at least a portion of electrode 324b. The insulative jackets can be comprised of any suitable material which can increase the dielectric resistance between the electrodes 324a and 324b, such as ceramic, for example. In various embodiments, as a result of the above, an insulative jacket at least partially surrounding an electrode can interrupt the air gap between the electrodes in order to reduce the possibility of current arcing between the electrodes.


In various embodiments, further to the above, insulative jacket 341a can comprise a tube having an aperture, wherein electrode 324a can extend through the aperture. In at least one embodiment, insulative jacket 341a can be mounted, or rigidly secured, to a handle portion of surgical instrument 300 and can extend along a substantial length of electrode 324a. The insulative jacket 341a can be configured such that the distal end 335a of electrode 324a is not surrounded by insulative jacket 341a and such that the distal end 335a of electrode 324a extends distally from the distal end 343a of insulative jacket 341a. Similar to the above, insulative jacket 341b can comprise a tube having an aperture, wherein electrode 324b can extend through the aperture. In at least one embodiment, insulative jacket 341b can be mounted, or rigidly secured, to a handle portion of surgical instrument 300 and can extend along the length of electrode 324b. The insulative jacket 341b can be configured such that the distal end 335b of electrode 324b is not surrounded by insulative jacket 341b and such that the distal end 335b of electrode 324b extends distally from the distal end 343b of insulative jacket 341b. In at least one such embodiment, the air gap between the electrodes 324a and 324b can be interrupted by the insulative jackets 341a, 341b except for the distance extending between the distal ends of the electrodes 324a, 324b and the distal ends of insulative jackets 341a, 341b.


Referring to FIG. 8, the distal ends 343a, 343b of electrodes 324a, 324b can be inserted into tissue such that, if the electrodes 324a and 324b are inserted a certain depth, insulative jacket 341a and/or insulative jacket 341b can contact the tissue. Once the insulative jacket 341a and/or insulative jacket 341b contacts the tissue, the insulative jackets can prevent, or at least inhibit, electrode 324a and/or electrode 324b from being further inserted into the tissue. In at least one embodiment, the distal end 343a and/or distal end 343b can comprise a datum which can define the maximum insertion depth of the electrode 324a and/or electrode 324b into the tissue. When the insulative jackets 341a and 341b are in contact with, or at least nearly in contact with, the tissue, very little, if any, uninterrupted air gap may exist between the electrodes 324a and 324b. In various circumstances, as a result, the possibility of current acting between the electrodes without passing through the tissue can be reduced. In various embodiments, the distal end 343a of insulative jacket 341a and the distal end 343b of insulative jacket 341b can lie along a common plane, or datum. In various other embodiments, although not illustrated, the distal ends 343a and 343b of insulative jackets 341a and 341b can define different datums and/or can provide for different insertion depths into the tissue, for example.


In various embodiments, referring now to FIG. 9, a surgical instrument, such as surgical instrument 400, for example, can comprise a sheath 426 and one or more electrodes, such as electrodes 424a and 424b, for example. In use, similar to the above, the electrodes 424a and 424b can be inserted into tissue and a voltage differential can be applied to the electrodes such that current can flow from one electrode to the other and, in addition, flow through the tissue positioned intermediate and/or surrounding the electrodes. The surgical instrument 400 can further comprise an insulative guard, such as guard 441, for example, which can be movable between a distal, or extended, position in which it is positioned intermediate the distal ends of the first electrode 424a and the second electrode 424b and a proximal, or retracted, position in which the guard 441 is displaced proximally relative to the distal ends of the first and second electrodes 424a and 424b. In various embodiments, the guard 441 can be biased into a distal position (FIG. 9) in which guard 441 is positioned intermediate the distal end 443a of first electrode 424a and the distal end 443b of second electrode 424b. In certain embodiments, the guard 441 can be biased into its distal position by a spring, such as compression spring 445, for example. More particularly, in at least one embodiment, spring 445 can be positioned intermediate a portion of sheath 426, such as support surface 447, for example, and a portion of insulative guard 441, such as surface 449 and/or projections extending therefrom, such that the compression spring 445 can apply a biasing force to guard 441 and hold guard 441 in its distal position. In such a distal position, the guard 441 can prevent, or at least reduce the possibility of, current from arcing between the electrodes.


As outlined above, the insulative guard 441 of surgical instrument 400 can be biased into its distal position by compression spring 445. In at least one embodiment, referring to FIG. 9, guard 441 can comprise a distal end 451 which can be positioned flush with the distal ends 443a and 443b of electrodes 424a and 424b. In at least one embodiment, the distal end 451 can be positioned along a datum defined by distal ends 443a and 443b. In certain other embodiments, although not illustrated, the distal end 451 of guard 441 can extend beyond the distal end 443a and/or the distal end 443b of the electrodes. As also outlined above, the guard 441 can be retracted proximally. In at least one embodiment, referring now to FIG. 10, the insulative guard 441 can be slid proximally within sheath 426 such that the insulative guard 441 is no longer positioned intermediate the distal ends 443a and 443b of the electrodes. In certain embodiments, referring now to FIG. 11, the surgical instrument 400 can be configured such that insulative guard 441 can be retracted as electrodes 424a and 424b are inserted into the tissue. More particularly, in at least one embodiment, the distal ends 443a and 443b of the electrodes and the distal end 451 of guard 441 can be positioned against tissue wherein, as the electrodes 424a and 424b enter into the tissue, the guard 441 may not enter into the tissue and, instead, may be displaced proximally, or relative to the distal ends 443a and 443b. Once the guard has been displaced proximally, in various embodiments, a voltage differential may be applied to the electrodes 424a and 424b and current may flow from one electrode to the other through the tissue.


When insulative guard 441 is displaced proximally, as outlined above, the guard 441 can compress spring 445. When spring 445 is compressed, the spring 445 can store energy therein and apply a biasing force to insulative guard 441 such that, as the electrodes 424a and 424b are extracted from the tissue, the spring 445 can displace the guard 441 distally toward the distal ends 443a and 443b of electrodes 424a and 424b. In at least one such embodiment, the distal end 451 of guard 441 can remain in contact with the tissue as the electrodes 424a and 424b are inserted into and extracted from the tissue. In various embodiments, as a result, the guard 441 can prevent, or at least reduce the possibility of, current arcing between the electrodes without passing through the tissue. Stated another way, the guard 441 can be sufficiently retracted when the electrodes 424a, 424b are inserted into tissue in order to permit current to flow between the portions of electrodes 424a, 424b within the tissue but, at the same time, sufficiently positioned against the tissue to prevent, or at least reduce the possibility of, current from flowing between the electrodes 424a, 424b at a location outside of the tissue. In various embodiments, as a result of the above, the insulative guard 441 and spring 445 arrangement can provide for a self-regulating, or self-retracting, system. In other embodiments, although not illustrated, the surgical instrument 400 can comprise an actuator configured to displace the insulative guard 441. In certain embodiments, other biasing means can be used in addition to or in lieu of a spring. In at least one embodiment, for example, a surgical instrument can comprise a motor mounted within a shaft of the surgical instrument, wherein the motor can apply a biasing force to an insulative guard in order to keep the guard biased against the tissue and yet the permit the guard to move relative to the electrodes.


In various embodiments, further to the above, surgical instrument 400 can further comprise means for controlling or defining the movement of insulative guard 441 as it is moved between its proximal and distal positions. In at least one embodiment, referring to FIGS. 9 and 10, the sheath 426 can comprise at least one elongate slot 453 and the guard 441 can comprise at least one projection 455 extending therefrom, wherein the projection 455 can be configured to slide within the slot 453. The slot 453 can be configured to limit the movement of projection 455 such that the guard 441 can move along a predetermined path relative to sheath 426, for example. In at least one embodiment, the slot 453 and projection 455 can be configured such that guard 441 is guided along an axial, or longitudinal, path between its proximal and distal positions. In at least one such embodiment, the slot 453 can comprise a linear, or at least substantially linear, profile and can be parallel to, substantially parallel to, collinear with, or substantially collinear with a longitudinal axis of sheath 426. Although not illustrated, other embodiments are envisioned in which slot 453 can comprise a curved configuration, a curvilinear configuration, and/or any other suitable configuration in order to provide or define a suitable path for guard 441. In various embodiments, although not illustrated, the sheath 426 can comprise at least one projection extending therefrom which can be configured to slide within at least groove in the insulative guard. In various embodiments, referring again to FIGS. 9 and 10, the insulative guard 441 can comprise one or more recesses or grooves, such as recesses 457a and 457b, for example, which can be configured to receive at least a portion of the electrodes 424a and 424b, respectively. More particularly, in at least one embodiment, the electrode 424a can extend through recess 457a in guard 441 and, in addition, the electrode 424b can extend through the recess 457b, wherein, in at least one embodiment, the electrodes 424a, 424b can be closely received in the recesses 457a, 457b such that guard 441 is guided therebetween.


In various embodiments, a surgical instrument can include an electrode comprising a flexible portion which can be configured to conform to the surface of an organ, such as a patient's liver, for example, and/or any other suitable tissue to be treated. In certain embodiments, referring now to FIG. 12, a surgical instrument, such as surgical instrument 500, for example, can comprise a shaft 526 and an electrode 524, wherein the electrode 524 can be comprised of a flexible, conductive mesh 525. In at least one embodiment, the surgical instrument 500 can further comprise an electrode support 561 which can be mounted to the shaft 526. The electrode support 561 can comprise a wire, or rod, having a first end and a second end mounted to the shaft 526 and an intermediate portion 565 extending between the first end and the second end. The first end and the second end of electrode support 561 can be mounted to shaft 526 in any suitable manner, such as by welding and/or fasteners, for example. In various embodiments, the intermediate portion 565 can define a perimeter configured to support the edge of the flexible mesh 525. The edge of the flexible mesh 525 can be mounted to the electrode support 561 by any suitable means such as an adhesive and/or fasteners, for example. In certain embodiments, the edge of the flexible mesh 525 can be wrapped around the electrode support 561 such that the edge of the flexible mesh 525 can be attached to itself. In any event, the electrode mesh 525 can be configured such that a central portion of the electrode mesh 525 can move relative to its edge. In at least one embodiment, the central portion of the electrode mesh 525 can be configured to deflect relative to the electrode support 561 in order to create a pocket, or pouch. The electrode mesh 525 can comprise a concave or convex configuration which can receive at least a portion of the targeted tissue therein. In various embodiments, the surgical instrument 500 can comprise a liver retractor wherein the flexible mesh 525 can deflect to receive at least a portion of a patient's liver. In at least one such embodiment, the electrode 524 may be sufficiently rigid to allow a surgeon to manipulate the patient's liver with the surgical instrument 500 and hold the electrode 524 in position.


In various embodiments, further to the above, the flexible mesh 525 can be comprised of a conductive material, such as copper and/or stainless steel, for example, wherein the flexible mesh can be operably connected with at least one conductor, such as conductor 518, for example, of the surgical instrument 500. In use, the flexible mesh 525 can be positioned relative to the tissue to be treated wherein, in at least one embodiment, a second electrode, such as electrode 524b, for example, can also be positioned relative to the tissue. Referring now to FIG. 13, the flexible electrode of surgical instrument 500 can be positioned on one side of the tissue to be treated and the second electrode can be inserted into the tissue and/or a tumor within the tissue, for example. In at least one such embodiment, the conductor 518 of surgical instrument 500 and the second electrode 524b can be operably coupled with a power source such that current can flow between the electrodes. In various embodiments, the second electrode 524b can be operably connected with a cathode, or positive pole, of the power source while the conductor 518 can be operably connected to an anode, or negative pole, of the power source and/or a suitable ground. In various other embodiments, the second electrode 524b can be operably connected to the anode of the power source and/or ground while the conductor 518 can be operably connected to the cathode of the power source. In any event, referring to FIGS. 14 and 15, the voltage potential applied to the electrode 524 and the second electrode 524b, and/or the current passing between the electrodes 524, 524b, can cause necrosis in the tissue which is in contact with and/or surrounding the electrodes 524, 524b. Such necrotic tissue can comprise necrotic tissue portion 563a and necrotic tissue portion 563b wherein, referring to FIG. 14, the necrotic tissue portion 563b can be associated with the second electrode 524b and can comprise a volume of substantially ablated and/or necrotic tissue while the necrotic tissue portion 563a can be associated with electrode 524 and can comprise a volume of only partially ablated and/or necrotic tissue, for example.


In various circumstances, further to the above, it may be desirable to control or limit the size of necrotic tissue region 563a and/or the density of the necrotic tissue within region 563a. In certain embodiments, the amount and/or density of the necrotic tissue created around the electrode 524 can depend on the intensity, or density, of the current flowing from and/or to the electrode 524. In various circumstances, the field density of the current can depend on the size of the electrode 524. More particularly, a larger electrode 524 can produce a lower current field density surrounding the electrode 524 and, as a result, generate a smaller amount of necrotic tissue, whereas a smaller electrode 524 can produce a larger current field density and, as a result, generate a larger amount of necrotic tissue. In various embodiments, referring again to FIG. 14, the necrotic tissue region 563a can be largely positioned under and/or around the electrode support 561. In view of the above, the perimeter or diameter of electrode support 561 can be increased such that a smaller amount of, and/or less dense volume of, necrotic tissue is created around electrode 524, whereas the perimeter or diameter of electrode support 561 can be decreased such that a larger amount of, and/or more dense volume of, necrotic tissue is created around electrode 524. Correspondingly, a larger perimeter or diameter of electrode support 561 can generally accommodate a larger electrode mesh 525, wherein the larger electrode mesh 525 can, as a result, contact a larger surface area of tissue. Such a larger surface area can further reduce the amount and/or density of necrotic tissue produced by electrode 524. By comparison, the amount and/or density of necrotic tissue surrounding second electrode 524b, which may comprise a needle electrode, for example, can be larger, and possibly substantially larger, than the amount and/or density of necrotic tissue surrounding electrode 524.


As outlined above, referring again to FIG. 12, the electrode mesh 525 can comprise a conductive material. In at least one embodiment, the electrode mesh 525 can be attached to shaft 526 by a mounting collar 541, wherein the mounting collar 541 can secure an end of mesh 525 in position. In at least one embodiment, the electrode mesh 525 can comprise a bag having an open end which can be slid over electrode support 561 and at least a portion of shaft 526 wherein the mounting collar 541 can be slid over at least a portion of mesh 525 to mount mesh 525 to shaft 526. In certain embodiments, the electrode mesh can comprise at least one substrate material perfused with at least one electrically-conductive material, such as saline, for example, wherein the perfused material and the substrate material can permit current to flow throughout the mesh 525 and/or between conductor 518 and electrode support 561, for example. In various embodiments, the substrate material and the perfused material can both be comprised of one or more electrically-conductive materials. In at least one embodiment, the mesh 525 can be comprised of a non-conductive, or at least substantially non-conductive, substrate material, wherein a conductive material perfused within the substrate material can conduct the current within the mesh 525. In at least one embodiment, the substrate material of mesh 525 can be porous such that the substrate material can absorb the conductive material. In various embodiments, the electrode mesh 525 can comprise at least one substrate material and, in addition, at least one conductive material coated onto the substrate material. In at least one embodiment, the substrate material can be comprised of at least one non-electrically conductive material while, in other embodiments, the substrate material can be comprised of one or more electrically conductive materials. In certain embodiments, the coated material can be comprised of a multi-filament medical polyester yarn available from ATEX Technologies, for example. As discussed above, mesh 525 can be flexible such that it can readily deflect or change shape when it contacts tissue, such as a patient's liver, for example. In certain embodiments, the mesh 525 can comprise a material having a plurality of apertures extending therethrough, wherein the apertures can be arranged in any suitable pattern. In at least one embodiment, mesh 525 can comprise a weaved material. In certain embodiments, the mesh 525 can be rigid, or at least substantially rigid, such that it does not substantially deflect when it contacts tissue.


In various embodiments, referring now to FIG. 16, a surgical instrument, such as surgical instrument 600, for example, can comprise a flexible electrode, such as balloon electrode 624, for example, wherein the electrode 624 can be configured to conform to the contour of the tissue being treated. In certain embodiments, the balloon electrode 624 can be delivered to a surgical site percutaneously and/or laprascopically, wherein the balloon electrode 624 can be positioned under and/or around the targeted tissue, such as a patient's liver, for example. In at least one embodiment, the balloon electrode 624 can be expanded in order to increase the surface area of the electrode in contact with the targeted tissue. Similar to the above, a larger surface area in contact with the tissue can reduce the amount of, and/or the density of, the necrotic tissue created. In various embodiments, also similar to the above, a second electrode can be inserted into the targeted tissue, wherein the second electrode can be operably coupled with the cathode, or positive terminal, of a power source and the balloon electrode 624 can comprise a return electrode which can be operably coupled with the anode, or negative terminal, of the power source and/or any suitable ground, for example. In other embodiments, the electrode 624 can be operably coupled with the cathode, or positive terminal, of the power source and the second electrode can be operably coupled with the anode, or negative terminal, of the power source and/or any other suitable ground. In various alternative embodiments, a surgical instrument can include an electrode comprising a flexible sheet which is positioned against or relative to the targeted tissue.


In various embodiments, referring now to FIGS. 17 and 18, a surgical instrument, such as surgical instrument 700, for example, can comprise a plurality of electrodes, such as electrodes 724a, 724b, 724c, and 724d, for example, which can be configured and arranged to treat tissue in a desired manner. Similar to the above, the electrodes 724a-724d can extend distally from shaft 722 and protective sleeve 726 such that the electrodes can be inserted into tissue. In certain embodiments, also similar to the above, the electrodes 724a and 724b can be operably coupled with a cathode, or positive terminal, of a power source, whereas the electrodes 724c and 724d can be operably coupled with an anode, or negative terminal, of a power source. Referring primarily to FIG. 18, the electrodes 724a-724d can be positioned and arranged with respect to a central axis, such as axis 799, for example, wherein, in certain embodiments, axis 799 can be defined by the center of shaft 722. In various embodiments, the electrodes 724a-724d can each comprise a columnar electrode having a central axis, wherein the central axes of the electrodes 724a-724d can be positioned relative to axis 799. For example, the central axis of electrode 724a can be positioned a distance D1 away from axis 799, the central axis of electrode 724b can be positioned a distance D2 away from axis 799, the central axis of electrode 724c can be positioned a distance D3 away from axis 799, and the central axis of electrode 724d can be positioned a distance D4 away from axis 799. In certain embodiments, distance D1 can be equal to, or at least substantially equal to, distance D2 while, in various embodiments, distance D3 can be equal to, or at least substantially equal to, distance D4. Referring again to FIG. 18, distances D1 and D2 can be larger than distances D3 and D4 such that electrodes 724a and 724b care positioned further away from axis 799 than electrodes 724c and 724d. In various embodiments, distances D1, D2, D3, and/or D4 can range between approximately 0.25 cm and approximately 1.0 cm, for example.


When electrodes 724a-724d are polarized by a power source, referring again to FIG. 18, a voltage field can be created which surrounds the electrodes. In various embodiments, the voltage field can comprise one or more isolines, wherein each isoline can represent portions of the voltage field which have the same magnitude. For example, the voltage field generated by electrodes 724a-724d can be represented by a plurality of isolines, such as isoline 798a, for example, wherein isoline 798a can represent a perimeter surrounding the electrodes having a constant voltage field magnitude. Similarly, the electrodes 724a-724d can produce an isoline 798b which can represent a perimeter surrounding the electrodes having a constant voltage field magnitude which is different than the magnitude of isoline 798a, for example. In various embodiments, the isoline 798b can represent a voltage field magnitude which is greater than the magnitude represented by isoline 798a. In various embodiments, referring now to FIG. 19, the magnitude of the voltage field produced by the electrodes may not be constant at all locations surrounding the electrodes; on the contrary, the magnitude of the voltage field may be different at various locations surrounding the electrodes. For example, the voltage field, or at least a portion of the voltage field produced by the surgical instrument 700 can be represented by graph 797a in FIG. 19. More particularly, the graph 797a can represent the magnitude of the voltage field measured in a plane which includes the center axis of electrode 724c, center axis 799, and electrode 724d. Graph 797a, however, may not necessarily represent the magnitude of the voltage field in other planes. Upon examining the graph 797a, it can be seen that, in at least one embodiment, the voltage field produced by the electrodes 724a-724d can comprise a symmetrical, or at least substantially symmetrical, profile centered about axis 799. Furthermore, it can be seen from graph 797a that the magnitude of the voltage field has two valleys 795c, 795d centered about, or at least positioned adjacent to, the electrodes 724c and 724d, respectively. In various embodiments, the magnitude of the voltage field at valleys 795c and/or 795d may be zero or, alternatively, greater than zero.


In various embodiments, referring again to the graph 797a in FIG. 19, the magnitude of the voltage field surrounding electrodes 724a-724d can be the same, or at least substantially the same, at distances of between about 6 cm to about 10 cm away from axis 799 in the lateral directions, for example. Stated another way, the change in magnitude, or gradient, of the voltage field produced by surgical instrument 700 between about 6 cm and about 10 cm away from the center of surgical instrument 700 may be very small. In at least one embodiment, for example, the gradient, or rate of change of the magnitude of the voltage field, between about 9 cm and about 10 cm may be about 0.04 VDC per millimeter, for example. In other various embodiments, the gradient may be about 0.01 VDC/mm, about 0.02 VDC/mm, about 0.03 VDC/mm, about 0.05 VDC/mm, about 0.06 VDC/mm, about 0.07 VDC/mm, about 0.08 VDC/mm, about 0.09 VDC/mm, about 0.10 VDC/mm, about 0.11 VDC/mm, about 0.12 VDC/mm, and/or about 0.13 VDC/mm, for example. In various circumstances, it may be desirable for surgical instrument 700 to produce a voltage field having a gradient below about 0.14V/mm, wherein a voltage field gradient at or larger than 0.14 V/mm may cause a contraction of muscle, and/or other tissue, surrounding the surgical site. Referring now to the graph 797b in FIG. 19, the graph 797b can represent the magnitude of the voltage field measured in a plane which includes the center axis of electrode 724a, center axis 799, and electrode 724b, although the graph 797b may not necessarily represent the magnitude of the voltage field in other planes. In various circumstances, the planes used to establish graphs 797a and 797b may be orthogonal, or perpendicular, to one another. Upon examining the graph 797b, it can be seen that, in at least one embodiment, the voltage field produced by the electrodes 724a-724d can comprise a symmetrical, or at least substantially symmetrical, profile centered about axis 799. Furthermore, it can be seen from graph 797b that the magnitude of the voltage field has two peaks 795a, 795b centered about, or at least positioned adjacent to, the electrodes 724a and 724b, respectively. Similar to the above, it can be seen from graph 797b that the gradient of the magnitude of the voltage field between about 9 cm and about 10 cm away from axis 799 may be about 0.04 VDC per millimeter, for example. In other various embodiments, the gradient may be about 0.01 VDC/mm, about 0.02 VDC/mm, about 0.03 VDC/mm, about 0.05 VDC/mm, about 0.06 VDC/mm, about 0.07 VDC/mm, about 0.08 VDC/mm, about 0.09 VDC/mm, about 0.10 VDC/mm, about 0.11 VDC/mm, about 0.12 VDC/mm, and/or about 0.13 VDC/mm, for example.


Viewing graphs 797a and 797b together, further to the above, the voltage field produced by surgical instrument 700 between about 6 cm and about 10 cm away from axis 799 in all directions could be represented by a single isoline, or isoplane, which surrounds the electrodes 724a-724d. When electrodes 724a-724d are positioned in tissue, such an isoplane can represent very little, if any, voltage gradient through the tissue which, as a result, can result in little, if any contraction of the tissue within the 6 cm to 10 cm region, for example. As outlined above, referring against to graphs 797a and 797b in FIG. 19, the magnitude of the voltage field produced by the surgical instrument 700 is a function of the voltage potential, or differential, supplied to the electrodes 724a-724d. A lower voltage potential, or differential, supplied to the electrodes can result in a voltage field having a lower average magnitude as compared to when a higher voltage potential, or differential, is supplied to the electrodes 724a-724d. In various embodiments, further to the above, the same voltage potential, or at least substantially the same voltage potential, supplied to electrode 724a can be supplied to electrode 724b. In certain embodiments, the same voltage potential, or at least substantially the same voltage potential, supplied to electrode 724c can be supplied to electrode 724d.


In various embodiments, referring now to FIGS. 20 and 21, a surgical instrument, such as surgical instrument 900, for example, can comprise a first array of electrodes, such as electrodes 924a, 924b, and 924c, for example, which can be operably coupled with a first conductor. In addition, the surgical instrument 900 can further comprise a second array of electrodes, such as electrodes 924d, 924e, and 924f, for example, which can be operably coupled with a second conductor. Further to the above, the first conductor can be operably coupled with a cathode, or positive terminal, of a power source, whereas the second conductor can be operably coupled with an anode, or negative terminal, of the power source, for example. In various embodiments, referring primarily to FIG. 21, the electrodes 924a-924f can be arranged along first and second lines. More particularly, in at least one embodiment, electrodes 924a, 924e, and 924c can be positioned along a first line while electrodes 924d, 924b, and 924f can be positioned along a second line. In certain embodiments, the first line can be parallel to, or at least substantially parallel to, the second line. With regard to the first line of electrodes, in various embodiments, positive electrode 924a can be positioned on one side of negative electrode 924e while positive electrode 924c can be positioned on the opposite side of electrode 924e. Similarly, with regard to the second line of electrodes, negative electrode 924d can be positioned on one side of positive electrode 924b while negative electrode 924f can be positioned on the opposite side of electrode 924b. In certain embodiments, electrodes 924a, 924b, and 924c can have the same, or at least substantially the same, voltage potential while, in at least one embodiment, electrodes 924d, 924e, and 924f can have the same, or at least substantially the same, voltage potential.


In various embodiments, further to the above, the first array of electrodes comprising electrodes 924a, 924b, and 924c can be set to a first polarity while the second array of electrodes comprising electrodes 924d, 924e, and 924f can be set to a second polarity. In certain embodiments, the polarity of the first array of electrodes can be adjusted simultaneously while the polarity of the second array of electrodes can be adjusted simultaneously, and independently, of the first array of electrodes. In various embodiments, the electrode 924a can be operably coupled to a first conductor, the electrode 924b can be operably coupled to a second conductor, the electrode 924c can be operably coupled to a third conductor, the electrode 924d can be operably coupled with a fourth conductor, the electrode 924e can be operably coupled with a fifth conductor, and the electrode 924f can be operably coupled with a sixth conductor. In at least one such embodiment, each of the conductors can be operably coupled with an output of a voltage source, wherein the voltage source can be configured to supply different voltage potentials to one, some, and/or all of the conductors and their corresponding electrodes. In the exemplary embodiment of surgical instrument 900, such a voltage source could supply six different voltage potentials, wherein, in at least one embodiment, each of the voltage potentials could be adjusted before, and/or during, the operation of the surgical instrument.


In certain embodiments, referring again to FIG. 21, the electrodes 924a, 924e, and 924c can be attached to and/or bonded to one another with an insulator positioned intermediate the electrodes 924a, 924e, and 924c. Similarly, electrodes 924d, 924b, and 924f can be attached to and/or bonded to one another within an insulator positioned intermediate the electrodes 924d, 924b, and 924f. In various embodiments, air gaps can be present between the electrodes 924a-924f. In any event, although surgical instrument 900 is described and illustrated as comprising six electrodes, other embodiments are envisioned which can comprise less than six electrodes or more than six electrodes, such as embodiments comprising eight electrodes arranged in two rows of four electrodes, or embodiments comprising ten electrodes arranged in two rows of five electrodes, for example. Furthermore, although surgical instrument 900 is described and illustrated as comprising two rows of electrodes, other embodiments are envisioned which can comprise more than two rows of electrodes, such as embodiments comprising nine electrodes arranged in three rows of three electrodes, for example.


The embodiments of the devices described herein may be introduced inside a patient using minimally invasive or open surgical techniques. In some instances it may be advantageous to introduce the devices inside the patient using a combination of minimally invasive and open surgical techniques. Minimally invasive techniques may provide more accurate and effective access to the treatment region for diagnostic and treatment procedures. To reach internal treatment regions within the patient, the devices described herein may be inserted through natural openings of the body such as the mouth, anus, and/or vagina, for example. Minimally invasive procedures performed by the introduction of various medical devices into the patient through a natural opening of the patient are known in the art as NOTES™ procedures. Some portions of the devices may be introduced to the tissue treatment region percutaneously or through small-keyhole-incisions.


Endoscopic minimally invasive surgical and diagnostic medical procedures are used to evaluate and treat internal organs by inserting a small tube into the body. The endoscope may have a rigid or a flexible tube. A flexible endoscope may be introduced either through a natural body opening (e.g., mouth, anus, and/or vagina) or via a trocar through a relatively small-keyhole-incision incisions (usually 0.5-1.5 cm). The endoscope can be used to observe surface conditions of internal organs, including abnormal or diseased tissue such as lesions and other surface conditions and capture images for visual inspection and photography. The endoscope may be adapted and configured with working channels for introducing medical instruments to the treatment region for taking biopsies, retrieving foreign objects, and/or performing surgical procedures.


Preferably, the various embodiments of the devices described herein will be processed before surgery. First, a new or used instrument is obtained and if necessary cleaned. The instrument can then be sterilized. In one sterilization technique, the instrument is placed in a closed and sealed container, such as a plastic or TYVEK® bag. The container and instrument are then placed in a field of radiation that can penetrate the container, such as gamma radiation, x-rays, or high-energy electrons. The radiation kills bacteria on the instrument and in the container. The sterilized instrument can then be stored in the sterile container. The sealed container keeps the instrument sterile until it is opened in the medical facility. Other sterilization techniques can be done by any number of ways known to those skilled in the art including beta or gamma radiation, ethylene oxide, and/or steam.


Although the various embodiments of the devices have been described herein in connection with certain disclosed embodiments, many modifications and variations to those embodiments may be implemented. For example, different types of end effectors may be employed. Also, where materials are disclosed for certain components, other materials may be used. The foregoing description and following claims are intended to cover all such modification and variations.


Any patent, publication, or other disclosure material, in whole or in part, that is said to be incorporated by reference herein is incorporated herein only to the extent that the incorporated materials does not conflict with existing definitions, statements, or other disclosure material set forth in this disclosure. As such, and to the extent necessary, the disclosure as explicitly set forth herein supersedes any conflicting material incorporated herein by reference. Any material, or portion thereof, that is said to be incorporated by reference herein, but which conflicts with existing definitions, statements, or other disclosure material set forth herein will only be incorporated to the extent that no conflict arises between that incorporated material and the existing disclosure material.

Claims
  • 1. A surgical instrument configured to deliver electrical energy to the tissue of a patient, comprising: a frame;a first electrode, comprising: an elongate portion defined along a first axis; anda distal portion configured to contact the tissue;a second electrode, comprising: an elongate portion defined along a second axis; anda distal portion configured to contact the tissue;a guard movable between a first position and a second position, wherein said guard is comprised of an electrically insulative material; anda spring positioned intermediate said guard and said frame, wherein said guard is positioned intermediate said distal portion of said first electrode and said distal portion of said second electrode when said guard is in said first position, wherein said spring is configured to bias said guard into said first position, and wherein said guard is retracted proximally with respect to said first electrode and said second electrode and not positioned intermediate said distal portion of said first electrode and said distal portion of said second electrode when said guard is in said second position,wherein when said guard is in said first position, a distal end of said guard is positioned at least flush with distal ends of said first electrode and said second electrode, which prevents current from arcing between said first electrode and said second electrode when said guard is in said first position; andwherein when said guard is in said second position, said distal end of said guard is in contact with the tissue, which prevents current from arcing between said first electrode and said second electrode without passing through the tissue when said guard is in said second position.
  • 2. The surgical instrument of claim 1, wherein said guard is configured to move from said first position to said second position when said first electrode and said second electrode are inserted into the tissue.
  • 3. The surgical instrument of claim 1, wherein said guard is configured to move from said first position to said second position when said guard contacts the tissue.
  • 4. A surgical instrument configured to deliver electrical energy to the tissue of a patient, comprising: a housing;a first electrode, comprising: a first elongate portion defined along a first axis; anda first distal portion;a second electrode, comprising: a second elongate portion defined along a second axis; anda second distal portion;a guard comprising a distal end, wherein said guard is positioned intermediate said first electrode and said second electrode; anda resilient member positioned intermediate said guard and said housing, wherein said guard is movable between a distal position and a proximal position, wherein said resilient member is configured to bias said guard into said distal position,wherein when said guard is in said distal position, said distal end of said guard is positioned at least flush with distal ends of said first electrode and said second electrode, which prevents current from arcing between said first electrode and said second electrode when said guard is in said distal position, andwherein when said guard is in said proximal position, said distal end of said guard is in contact with the tissue, which prevents current from arcing between said first electrode and said second electrode without passing through the tissue when said guard is in said proximal position.
  • 5. The surgical instrument of claim 4, wherein said guard is comprised of an electrically insulative material.
  • 6. The surgical instrument of claim 4, wherein said guard is configured to move from said distal position to said proximal position when said first electrode and said second electrode are inserted into the tissue.
  • 7. The surgical instrument of claim 4, wherein said guard is configured to move from said distal position to said proximal position when said guard contacts the tissue.
  • 8. The surgical instrument of claim 4, wherein said distal end of said guard extends beyond said first distal portion and said second distal portion when said guard is in said distal position.
  • 9. A surgical instrument configured to deliver electrical energy to the tissue of a patient, comprising: a sheath;a first electrode, comprising: a first elongate portion defined along a first axis; anda first distal end portion configured to contact the tissue;a second electrode, comprising: a second elongate portion defined along a second axis; anda second distal end portion configured to contact the tissue;a guard comprising a distal end, wherein said guard is movable between a first position and a second position; anda biasing means positioned intermediate said guard and said sheath, wherein said guard is positioned intermediate said first electrode and said second electrode, wherein said biasing means is configured to bias said guard into said first position, and wherein said distal end of said guard extends between said first distal end portion and said second distal end portion when said guard is in said first position,wherein said guard is retracted proximally with respect to said first electrode and said second electrode when said guard is in said second position,wherein when said guard is in said first position, said distal end of said guard is positioned at least flush with distal ends of said first electrode and said second electrode, which prevents current from arcing between said first electrode and said second electrode when said guard is in said first position; andwherein when said guard is in said second position, said distal end of said guard is in contact with the tissue, which prevents current from arcing between said first electrode and said second electrode without passing through the tissue when said guard is in said second position.
  • 10. The surgical instrument of claim 9, wherein said guard is comprised of an electrically insulative material.
  • 11. The surgical instrument of claim 9, wherein said guard is configured to move from said first position to said second position when said first electrode and said second electrode are inserted into the tissue.
  • 12. The surgical instrument of claim 9, wherein said guard is configured to move from said first position to said second position when said guard contacts the tissue.
  • 13. The surgical instrument of claim 9, wherein said distal end of said guard extends beyond said first distal end portion and said second distal end portion when said guard is in said first position.
  • 14. The surgical instrument of claim 9, wherein said distal end of said guard is positioned flush with said first distal end portion and said second distal end portion.
CROSS REFERENCE TO RELATED APPLICATIONS

This application is a divisional application claiming priority under 35 U.S.C. § 121 to U.S. patent application Ser. No. 12/641,837, entitled SURGICAL INSTRUMENT COMPRISING AN ELECTRODE, filed Dec. 18, 2009, now U.S. Pat. No. 9,028,483, the entire disclosure of which is hereby incorporated by reference herein.

US Referenced Citations (1842)
Number Name Date Kind
645576 Tesla Mar 1900 A
649621 Tesla May 1900 A
787412 Tesla Apr 1905 A
1039354 Bonadio Sep 1912 A
1127948 Wappler Feb 1915 A
1482653 Lilly Feb 1924 A
1581706 White Apr 1926 A
1581707 White Apr 1926 A
1581708 White Apr 1926 A
1581709 White Apr 1926 A
1581710 White Apr 1926 A
1625602 Gould et al. Apr 1927 A
1916722 Ende Jul 1933 A
2028635 Wappler Jan 1936 A
2031682 Wappler et al. Feb 1936 A
2113246 Wappler Apr 1938 A
2137710 Anderson Nov 1938 A
2155365 Rankin Apr 1939 A
2191858 Moore Feb 1940 A
2196620 Attarian Apr 1940 A
2388137 Graumlich Oct 1945 A
2451077 Emsig Oct 1948 A
2493108 Casey, Jr. Jan 1950 A
2504152 Riker et al. Apr 1950 A
2938382 De Graaf May 1960 A
2952206 Becksted Sep 1960 A
3044461 Murdock Jul 1962 A
3069195 Buck Dec 1962 A
3070088 Brahos Dec 1962 A
3170471 Schnitzer Feb 1965 A
3435824 Gamponia Apr 1969 A
3470876 Barchilon Oct 1969 A
3481325 Glassman Dec 1969 A
3595239 Petersen Jul 1971 A
3669487 Roberts et al. Jun 1972 A
3746881 Fitch et al. Jul 1973 A
3799672 Vurek Mar 1974 A
3854473 Matsuo Dec 1974 A
3946740 Bassett Mar 1976 A
3948251 Hosono Apr 1976 A
3961632 Moossun Jun 1976 A
3965890 Gauthier Jun 1976 A
3994301 Agris Nov 1976 A
4011872 Komiya Mar 1977 A
4012812 Black Mar 1977 A
4043342 Morrison, Jr. Aug 1977 A
4071028 Perkins Jan 1978 A
4085743 Yoon Apr 1978 A
4164225 Johnson et al. Aug 1979 A
4170997 Pinnow et al. Oct 1979 A
4174715 Hasson Nov 1979 A
4178920 Cawood, Jr. et al. Dec 1979 A
4207873 Kruy Jun 1980 A
4235238 Ogiu et al. Nov 1980 A
4258716 Sutherland Mar 1981 A
4269174 Adair May 1981 A
4278077 Mizumoto Jul 1981 A
4281646 Kinoshita Aug 1981 A
4285344 Marshall Aug 1981 A
4311143 Komiya Jan 1982 A
4329980 Terada May 1982 A
4393872 Reznik et al. Jul 1983 A
4396021 Baumgartner Aug 1983 A
4406656 Hattler et al. Sep 1983 A
4452246 Bader et al. Jun 1984 A
4461281 Carson Jul 1984 A
4491132 Aikins Jan 1985 A
4492232 Green Jan 1985 A
4527331 Lasner et al. Jul 1985 A
4527564 Eguchi et al. Jul 1985 A
4538594 Boebel et al. Sep 1985 A
D281104 Davison Oct 1985 S
4569347 Frisbie Feb 1986 A
4580551 Siegmund et al. Apr 1986 A
4646722 Silverstein et al. Mar 1987 A
4649904 Krauter et al. Mar 1987 A
4653476 Bonnet Mar 1987 A
4655219 Petruzzi Apr 1987 A
4657016 Garito et al. Apr 1987 A
4657018 Hakky Apr 1987 A
4669470 Brandfield Jun 1987 A
4671477 Cullen Jun 1987 A
4677982 Llinas et al. Jul 1987 A
4685447 Iversen et al. Aug 1987 A
4711239 Sorochenko Dec 1987 A
4711240 Goldwasser et al. Dec 1987 A
4712545 Honkanen Dec 1987 A
4721116 Schintgen et al. Jan 1988 A
4727600 Avakian Feb 1988 A
4733662 DeSatnick et al. Mar 1988 A
D295894 Sharkany et al. May 1988 S
4742817 Kawashima et al. May 1988 A
4753223 Bremer Jun 1988 A
4763669 Jaeger Aug 1988 A
4770188 Chikama Sep 1988 A
4790624 Van Hoye et al. Dec 1988 A
4791707 Tucker Dec 1988 A
4796627 Tucker Jan 1989 A
4807593 Ito Feb 1989 A
4815450 Patel Mar 1989 A
4819620 Okutsu Apr 1989 A
4823794 Pierce Apr 1989 A
4829999 Auth May 1989 A
4836188 Berry Jun 1989 A
4846573 Taylor et al. Jul 1989 A
4867140 Hovis et al. Sep 1989 A
4869238 Opie et al. Sep 1989 A
4869459 Bourne Sep 1989 A
4873979 Hanna Oct 1989 A
4880015 Nierman Nov 1989 A
4904048 Sogawa et al. Feb 1990 A
4911148 Sosnowski et al. Mar 1990 A
4926860 Stice et al. May 1990 A
4934364 Green Jun 1990 A
4938214 Specht et al. Jul 1990 A
4950273 Briggs Aug 1990 A
4950285 Wilk Aug 1990 A
4953539 Nakamura et al. Sep 1990 A
4960133 Hewson Oct 1990 A
4977887 Gouda Dec 1990 A
4979496 Komi Dec 1990 A
4979950 Transue et al. Dec 1990 A
4984581 Stice Jan 1991 A
4990152 Yoon Feb 1991 A
4991565 Takahashi et al. Feb 1991 A
4994079 Genese et al. Feb 1991 A
5007917 Evans Apr 1991 A
5010876 Henley et al. Apr 1991 A
5020514 Heckele Jun 1991 A
5020535 Parker et al. Jun 1991 A
5025778 Silverstein et al. Jun 1991 A
5026379 Yoon Jun 1991 A
5033169 Bindon Jul 1991 A
5037433 Wilk et al. Aug 1991 A
5041129 Hayhurst et al. Aug 1991 A
5046513 Gatturna et al. Sep 1991 A
5050585 Takahashi Sep 1991 A
5052372 Shapiro Oct 1991 A
5065516 Dulebohn Nov 1991 A
5066295 Kozak et al. Nov 1991 A
5098378 Piontek et al. Mar 1992 A
5108421 Fowler Apr 1992 A
5123913 Wilk et al. Jun 1992 A
5123914 Cope Jun 1992 A
5133727 Bales et al. Jul 1992 A
5147374 Fernandez Sep 1992 A
5174300 Bales et al. Dec 1992 A
5176126 Chikama Jan 1993 A
5190050 Nitzsche Mar 1993 A
5190555 Wetter et al. Mar 1993 A
5192284 Pleatman Mar 1993 A
5192300 Fowler Mar 1993 A
5197963 Parins Mar 1993 A
5201752 Brown et al. Apr 1993 A
5201908 Jones Apr 1993 A
5203785 Slater Apr 1993 A
5203787 Noblitt et al. Apr 1993 A
5209747 Knoepfler May 1993 A
5217003 Wilk Jun 1993 A
5217453 Wilk Jun 1993 A
5219357 Honkanen et al. Jun 1993 A
5219358 Bendel et al. Jun 1993 A
5222362 Maus et al. Jun 1993 A
5222965 Haughton Jun 1993 A
5234437 Sepetka Aug 1993 A
5234453 Smith et al. Aug 1993 A
5235964 Abenaim Aug 1993 A
5242456 Nash et al. Sep 1993 A
5245460 Allen et al. Sep 1993 A
5246424 Wilk Sep 1993 A
5257999 Slanetz, Jr. Nov 1993 A
5259366 Reydel et al. Nov 1993 A
5263958 deGuillebon et al. Nov 1993 A
5273524 Fox et al. Dec 1993 A
5275607 Lo et al. Jan 1994 A
5275614 Haber et al. Jan 1994 A
5275616 Fowler Jan 1994 A
5284128 Hart Feb 1994 A
5284162 Wilk Feb 1994 A
5287845 Faul et al. Feb 1994 A
5287852 Arkinstall Feb 1994 A
5290299 Fain et al. Mar 1994 A
5290302 Pericic Mar 1994 A
5295977 Cohen et al. Mar 1994 A
5297536 Wilk Mar 1994 A
5297687 Freed Mar 1994 A
5301061 Nakada et al. Apr 1994 A
5312023 Green et al. May 1994 A
5312333 Churinetz et al. May 1994 A
5312351 Gerrone May 1994 A
5312416 Spaeth et al. May 1994 A
5312423 Rosenbluth et al. May 1994 A
5318589 Lichtman Jun 1994 A
5320636 Slater Jun 1994 A
5324261 Amundson et al. Jun 1994 A
5325845 Adair Jul 1994 A
5330471 Eggers Jul 1994 A
5330486 Wilk Jul 1994 A
5330488 Goldrath Jul 1994 A
5330496 Alferness Jul 1994 A
5330502 Hassler et al. Jul 1994 A
5331971 Bales et al. Jul 1994 A
5334168 Hemmer Aug 1994 A
5334198 Hart et al. Aug 1994 A
5336192 Palestrant Aug 1994 A
5336222 Durgin, Jr. Aug 1994 A
5339805 Parker Aug 1994 A
5341815 Cofone et al. Aug 1994 A
5342396 Cook Aug 1994 A
5344428 Griffiths Sep 1994 A
5345927 Bonutti Sep 1994 A
5348259 Blanco et al. Sep 1994 A
5350391 Iacovelli Sep 1994 A
5352184 Goldberg et al. Oct 1994 A
5352222 Rydell Oct 1994 A
5354302 Ko Oct 1994 A
5354311 Kambin et al. Oct 1994 A
5356381 Ensminger et al. Oct 1994 A
5356408 Rydell Oct 1994 A
5360428 Hutchinson, Jr. Nov 1994 A
5364408 Gordon Nov 1994 A
5364410 Failla et al. Nov 1994 A
5366466 Christian et al. Nov 1994 A
5366467 Lynch et al. Nov 1994 A
5368605 Miller, Jr. Nov 1994 A
5370647 Graber et al. Dec 1994 A
5370679 Atlee, III Dec 1994 A
5374273 Nakao et al. Dec 1994 A
5374275 Bradley et al. Dec 1994 A
5374277 Hassler Dec 1994 A
5374953 Sasaki et al. Dec 1994 A
5376077 Gomringer Dec 1994 A
5377695 An Haack Jan 1995 A
5383877 Clarke Jan 1995 A
5383888 Zvenyatsky et al. Jan 1995 A
5386817 Jones Feb 1995 A
5387259 Davidson Feb 1995 A
5391174 Weston Feb 1995 A
5392789 Slater et al. Feb 1995 A
5395386 Slater Mar 1995 A
5397332 Kammerer et al. Mar 1995 A
5401248 Bencini Mar 1995 A
5403311 Abele et al. Apr 1995 A
5403328 Shallman Apr 1995 A
5403342 Tovey et al. Apr 1995 A
5403348 Bonutti Apr 1995 A
5405073 Porter Apr 1995 A
5405359 Pierce Apr 1995 A
5409478 Gerry et al. Apr 1995 A
5417699 Klein et al. May 1995 A
5423821 Pasque Jun 1995 A
5431635 Yoon Jul 1995 A
5433721 Hooven et al. Jul 1995 A
5433735 Zanakis et al. Jul 1995 A
5439471 Kerr Aug 1995 A
5439478 Palmer Aug 1995 A
5441059 Dannan Aug 1995 A
5441494 Ortiz Aug 1995 A
5441498 Perkins Aug 1995 A
5441499 Fritzsch Aug 1995 A
5443463 Stern et al. Aug 1995 A
5445638 Rydell et al. Aug 1995 A
5445648 Cook Aug 1995 A
5449021 Chikama Sep 1995 A
5454827 Aust et al. Oct 1995 A
5456667 Ham et al. Oct 1995 A
5456684 Schmidt et al. Oct 1995 A
5458131 Wilk Oct 1995 A
5458583 McNeely et al. Oct 1995 A
5460168 Masubuchi et al. Oct 1995 A
5460629 Shlain et al. Oct 1995 A
5462561 Voda Oct 1995 A
5465731 Bell et al. Nov 1995 A
5467763 McMahon et al. Nov 1995 A
5468250 Paraschac et al. Nov 1995 A
5470308 Edwards et al. Nov 1995 A
5470320 Tiefenbrun et al. Nov 1995 A
5472441 Edwards et al. Dec 1995 A
5478347 Aranyi Dec 1995 A
5478352 Fowler Dec 1995 A
5480404 Kammerer et al. Jan 1996 A
5482029 Sekiguchi et al. Jan 1996 A
5482054 Slater et al. Jan 1996 A
5484451 Akopov et al. Jan 1996 A
5489256 Adair Feb 1996 A
5496347 Hashiguchi et al. Mar 1996 A
5499990 Schülken et al. Mar 1996 A
5499992 Meade et al. Mar 1996 A
5499997 Sharpe et al. Mar 1996 A
5500012 Brucker et al. Mar 1996 A
5501692 Riza Mar 1996 A
5503616 Jones Apr 1996 A
5505686 Willis et al. Apr 1996 A
5507755 Gresl et al. Apr 1996 A
5511564 Wilk Apr 1996 A
5514157 Nicholas et al. May 1996 A
5518501 Oneda et al. May 1996 A
5522829 Michalos Jun 1996 A
5522830 Aranyi Jun 1996 A
5527321 Hinchliffe Jun 1996 A
5533418 Wu et al. Jul 1996 A
5536234 Newman Jul 1996 A
5536248 Weaver et al. Jul 1996 A
5538509 Dunlap et al. Jul 1996 A
5540648 Yoon Jul 1996 A
5549637 Crainich Aug 1996 A
5554151 Hinchliffe Sep 1996 A
5555883 Avitall Sep 1996 A
5558133 Bortoli et al. Sep 1996 A
5562693 Devlin et al. Oct 1996 A
5569243 Kortenbach et al. Oct 1996 A
5569298 Schnell Oct 1996 A
5571090 Sherts Nov 1996 A
5573540 Yoon Nov 1996 A
5578030 Levin Nov 1996 A
5582611 Tsuruta et al. Dec 1996 A
5582617 Klieman et al. Dec 1996 A
5584845 Hart Dec 1996 A
5590660 MacAulay et al. Jan 1997 A
5591179 Edelstein Jan 1997 A
5591205 Fowler Jan 1997 A
5593420 Eubanks, Jr. et al. Jan 1997 A
5595562 Grier Jan 1997 A
5597378 Jervis Jan 1997 A
5601573 Fogelberg et al. Feb 1997 A
5601574 Stefanchik et al. Feb 1997 A
5601588 Tonomura et al. Feb 1997 A
5601602 Fowler Feb 1997 A
5604531 Iddan et al. Feb 1997 A
5607386 Flam Mar 1997 A
5607389 Edwards et al. Mar 1997 A
5607406 Hernandez et al. Mar 1997 A
5607450 Zvenyatsky et al. Mar 1997 A
5609601 Kolesa et al. Mar 1997 A
5613975 Christy Mar 1997 A
5613977 Weber et al. Mar 1997 A
5614943 Nakamura et al. Mar 1997 A
5616117 Dinkler et al. Apr 1997 A
5618303 Marlow et al. Apr 1997 A
5620415 Lucey et al. Apr 1997 A
5624399 Ackerman Apr 1997 A
5624431 Gerry et al. Apr 1997 A
5626578 Tihon May 1997 A
5626587 Bishop et al. May 1997 A
5628732 Antoon, Jr. et al. May 1997 A
5630782 Adair May 1997 A
5630795 Kuramoto et al. May 1997 A
5643283 Younker Jul 1997 A
5643292 Hart Jul 1997 A
5643294 Tovey et al. Jul 1997 A
5644798 Shah Jul 1997 A
5645083 Essig et al. Jul 1997 A
5645519 Lee et al. Jul 1997 A
5645565 Rudd et al. Jul 1997 A
5649372 Souza Jul 1997 A
5653677 Okada et al. Aug 1997 A
5653690 Booth et al. Aug 1997 A
5653722 Kieturakis Aug 1997 A
5657755 Desai Aug 1997 A
5662621 Lafontaine Sep 1997 A
5662663 Shallman Sep 1997 A
5667527 Cook Sep 1997 A
5669875 van Eerdenburg Sep 1997 A
5681276 Lundquist Oct 1997 A
5681279 Roper et al. Oct 1997 A
5681324 Kammerer et al. Oct 1997 A
5681330 Hughett et al. Oct 1997 A
5685820 Riek et al. Nov 1997 A
5690606 Slotman Nov 1997 A
5690656 Cope et al. Nov 1997 A
5690660 Kauker et al. Nov 1997 A
5695448 Kimura et al. Dec 1997 A
5695505 Yoon Dec 1997 A
5695511 Cano et al. Dec 1997 A
5700275 Bell et al. Dec 1997 A
5702438 Avitall Dec 1997 A
5704892 Adair Jan 1998 A
5709708 Thal Jan 1998 A
5711921 Langford Jan 1998 A
5716326 Dannan Feb 1998 A
5716375 Fowler Feb 1998 A
5725542 Yoon Mar 1998 A
5728094 Edwards Mar 1998 A
5730740 Wales et al. Mar 1998 A
5735849 Baden et al. Apr 1998 A
5741234 Aboul-Hosn Apr 1998 A
5741278 Stevens Apr 1998 A
5741285 McBrayer et al. Apr 1998 A
5741429 Donadio, III et al. Apr 1998 A
5743456 Jones et al. Apr 1998 A
5746759 Meade et al. May 1998 A
5749826 Faulkner May 1998 A
5749881 Sackier et al. May 1998 A
5749889 Bacich et al. May 1998 A
5752951 Yanik May 1998 A
5755731 Grinberg May 1998 A
5759150 Konou et al. Jun 1998 A
5759151 Sturges Jun 1998 A
5762604 Kieturakis Jun 1998 A
5766167 Eggers et al. Jun 1998 A
5766170 Eggers Jun 1998 A
5766205 Zvenyatsky et al. Jun 1998 A
5769849 Eggers Jun 1998 A
5776188 Shepherd et al. Jul 1998 A
5779701 McBrayer et al. Jul 1998 A
5779716 Cano et al. Jul 1998 A
5779720 Walder-Utz et al. Jul 1998 A
5779727 Orejola Jul 1998 A
5782859 Nicholas et al. Jul 1998 A
5782861 Cragg et al. Jul 1998 A
5782866 Wenstrom, Jr. Jul 1998 A
5791022 Bohman Aug 1998 A
5792113 Kramer et al. Aug 1998 A
5792153 Swain et al. Aug 1998 A
5792165 Klieman et al. Aug 1998 A
5797835 Green Aug 1998 A
5797928 Kogasaka Aug 1998 A
5797939 Yoon Aug 1998 A
5797941 Schulze et al. Aug 1998 A
5797959 Castro et al. Aug 1998 A
5797960 Stevens et al. Aug 1998 A
5800449 Wales Sep 1998 A
5800451 Buess et al. Sep 1998 A
5803903 Athas et al. Sep 1998 A
5807395 Mulier et al. Sep 1998 A
5808665 Green Sep 1998 A
5810805 Sutcu et al. Sep 1998 A
5810806 Ritchart et al. Sep 1998 A
5810849 Kontos Sep 1998 A
5810865 Koscher et al. Sep 1998 A
5810876 Kelleher Sep 1998 A
5810877 Roth et al. Sep 1998 A
5813976 Filipi et al. Sep 1998 A
5814026 Yoon Sep 1998 A
5814058 Carlson et al. Sep 1998 A
5817061 Goodwin et al. Oct 1998 A
5817107 Schaller Oct 1998 A
5817119 Klieman et al. Oct 1998 A
5818527 Yamaguchi et al. Oct 1998 A
5819736 Avny et al. Oct 1998 A
5823947 Yoon et al. Oct 1998 A
5824071 Nelson et al. Oct 1998 A
5827190 Palcic et al. Oct 1998 A
5827276 LeVeen et al. Oct 1998 A
5827281 Levin Oct 1998 A
5827299 Thomason et al. Oct 1998 A
5827323 Klieman et al. Oct 1998 A
5830221 Stein et al. Nov 1998 A
5830231 Geiges, Jr. Nov 1998 A
5833603 Kovacs et al. Nov 1998 A
5833700 Fogelberg et al. Nov 1998 A
5833703 Manushakian Nov 1998 A
5833715 Vachon et al. Nov 1998 A
5836960 Kolesa et al. Nov 1998 A
5843017 Yoon Dec 1998 A
5843121 Yoon Dec 1998 A
5849022 Sakashita et al. Dec 1998 A
5853374 Hart et al. Dec 1998 A
5855569 Komi Jan 1999 A
5855585 Kontos Jan 1999 A
5860913 Yamaya et al. Jan 1999 A
5860995 Berkelaar Jan 1999 A
5868762 Cragg et al. Feb 1999 A
5873849 Bernard Feb 1999 A
5876411 Kontos Mar 1999 A
5882331 Sasaki Mar 1999 A
5882344 Stouder, Jr. Mar 1999 A
5893846 Bales et al. Apr 1999 A
5893874 Bourque et al. Apr 1999 A
5893875 O'Connor et al. Apr 1999 A
5897487 Ouchi Apr 1999 A
5899919 Eubanks, Jr. et al. May 1999 A
5902238 Golden et al. May 1999 A
5902254 Magram May 1999 A
5904702 Ek et al. May 1999 A
5906625 Bito et al. May 1999 A
5908420 Parins et al. Jun 1999 A
5908429 Yoon Jun 1999 A
5911737 Lee et al. Jun 1999 A
5916146 Allotta et al. Jun 1999 A
5916147 Boury Jun 1999 A
5921892 Easton Jul 1999 A
5921993 Yoon Jul 1999 A
5921997 Fogelberg et al. Jul 1999 A
5922008 Gimpelson Jul 1999 A
5925052 Simmons Jul 1999 A
5928255 Meade et al. Jul 1999 A
5928266 Kontos Jul 1999 A
5936536 Morris Aug 1999 A
5938661 Hahnen Aug 1999 A
5941815 Chang Aug 1999 A
5944718 Austin et al. Aug 1999 A
5951547 Gough et al. Sep 1999 A
5951549 Richardson et al. Sep 1999 A
5954720 Wilson et al. Sep 1999 A
5954731 Yoon Sep 1999 A
5957936 Yoon et al. Sep 1999 A
5957943 Vaitekunas Sep 1999 A
5957953 DiPoto et al. Sep 1999 A
5964782 Lafontaine et al. Oct 1999 A
5970581 Chadwick et al. Oct 1999 A
5971995 Rousseau Oct 1999 A
5972002 Bark et al. Oct 1999 A
5976074 Moriyama Nov 1999 A
5976075 Beane et al. Nov 1999 A
5976130 McBrayer et al. Nov 1999 A
5976131 Guglielmi et al. Nov 1999 A
5980539 Kontos Nov 1999 A
5980556 Giordano et al. Nov 1999 A
5984938 Yoon Nov 1999 A
5984939 Yoon Nov 1999 A
5984950 Cragg et al. Nov 1999 A
5989182 Hori et al. Nov 1999 A
5993447 Blewett et al. Nov 1999 A
5993474 Ouchi Nov 1999 A
5995875 Blewett et al. Nov 1999 A
5997555 Kontos Dec 1999 A
6001120 Levin Dec 1999 A
6004269 Crowley et al. Dec 1999 A
6004330 Middleman et al. Dec 1999 A
6007566 Wenstrom, Jr. Dec 1999 A
6010515 Swain et al. Jan 2000 A
6012494 Balazs Jan 2000 A
6016452 Kasevich Jan 2000 A
6017356 Frederick et al. Jan 2000 A
6019770 Christoudias Feb 2000 A
6024708 Bales et al. Feb 2000 A
6024747 Kontos Feb 2000 A
6027522 Palmer Feb 2000 A
6030365 Laufer Feb 2000 A
6030384 Nezhat Feb 2000 A
6030634 Wu et al. Feb 2000 A
6033399 Gines Mar 2000 A
6033401 Edwards et al. Mar 2000 A
6036640 Corace et al. Mar 2000 A
6036685 Mueller Mar 2000 A
6050992 Nichols Apr 2000 A
6053927 Hamas Apr 2000 A
6053937 Edwards et al. Apr 2000 A
6059719 Yamamoto et al. May 2000 A
6066160 Colvin et al. May 2000 A
6068603 Suzuki May 2000 A
6068629 Haissaguerre et al. May 2000 A
6071233 Ishikawa et al. Jun 2000 A
6074408 Freeman Jun 2000 A
6086530 Mack Jul 2000 A
6090105 Zepeda et al. Jul 2000 A
6090108 McBrayer et al. Jul 2000 A
6090129 Ouchi Jul 2000 A
6096046 Weiss Aug 2000 A
6102909 Chen et al. Aug 2000 A
6102926 Tartaglia et al. Aug 2000 A
6106473 Violante et al. Aug 2000 A
6106521 Blewett et al. Aug 2000 A
6109852 Shahinpoor et al. Aug 2000 A
6110154 Shimomura et al. Aug 2000 A
6110183 Cope Aug 2000 A
6113593 Tu et al. Sep 2000 A
6117144 Nobles et al. Sep 2000 A
6117158 Measamer et al. Sep 2000 A
6123718 Tu et al. Sep 2000 A
6131790 Piraka Oct 2000 A
6139555 Hart et al. Oct 2000 A
6141037 Upton et al. Oct 2000 A
6146391 Cigaina Nov 2000 A
6148222 Ramsey, III Nov 2000 A
6149653 Deslauriers Nov 2000 A
6149662 Pugliesi et al. Nov 2000 A
6152871 Foley et al. Nov 2000 A
6152920 Thompson et al. Nov 2000 A
6156006 Brosens et al. Dec 2000 A
6159200 Verdura et al. Dec 2000 A
6165175 Wampler et al. Dec 2000 A
6165184 Verdura et al. Dec 2000 A
6168570 Ferrera Jan 2001 B1
6168605 Measamer et al. Jan 2001 B1
6169269 Maynard Jan 2001 B1
6170130 Hamilton et al. Jan 2001 B1
6173872 Cohen Jan 2001 B1
6179776 Adams et al. Jan 2001 B1
6179832 Jones et al. Jan 2001 B1
6179837 Hooven Jan 2001 B1
6183420 Douk et al. Feb 2001 B1
6190353 Makower et al. Feb 2001 B1
6190383 Schmaltz et al. Feb 2001 B1
6190384 Ouchi Feb 2001 B1
6190399 Palmer et al. Feb 2001 B1
6203533 Ouchi Mar 2001 B1
6206872 Lafond et al. Mar 2001 B1
6206877 Kese et al. Mar 2001 B1
6206904 Ouchi Mar 2001 B1
6210409 Ellman et al. Apr 2001 B1
6214007 Anderson Apr 2001 B1
6214028 Yoon et al. Apr 2001 B1
6216043 Swanson et al. Apr 2001 B1
6228096 Marchand May 2001 B1
6231506 Hu et al. May 2001 B1
6234958 Snoke et al. May 2001 B1
6240312 Alfano et al. May 2001 B1
6245079 Nobles et al. Jun 2001 B1
6246914 de la Rama et al. Jun 2001 B1
6258064 Smith et al. Jul 2001 B1
6261242 Roberts et al. Jul 2001 B1
6264664 Avellanet Jul 2001 B1
6270497 Sekino et al. Aug 2001 B1
6270505 Yoshida et al. Aug 2001 B1
6277136 Bonutti Aug 2001 B1
6283963 Regula Sep 2001 B1
6287304 Eggers et al. Sep 2001 B1
6293909 Chu et al. Sep 2001 B1
6293952 Brosens et al. Sep 2001 B1
6296630 Altman et al. Oct 2001 B1
6314963 Vaska et al. Nov 2001 B1
6322578 Houle et al. Nov 2001 B1
6325534 Hawley et al. Dec 2001 B1
6326177 Schoenbach et al. Dec 2001 B1
6328730 Harkrider, Jr. Dec 2001 B1
6350267 Stefanchik Feb 2002 B1
6350278 Lenker et al. Feb 2002 B1
6352503 Matsui et al. Mar 2002 B1
6352541 Kienzle et al. Mar 2002 B1
6352543 Cole Mar 2002 B1
6355013 van Muiden Mar 2002 B1
6355035 Manushakian Mar 2002 B1
6361534 Chen et al. Mar 2002 B1
6364879 Chen et al. Apr 2002 B1
6368340 Malecki et al. Apr 2002 B2
6371956 Wilson et al. Apr 2002 B1
6379366 Fleischman et al. Apr 2002 B1
6383195 Richard May 2002 B1
6383197 Conlon et al. May 2002 B1
6387671 Rubinsky et al. May 2002 B1
6391029 Hooven et al. May 2002 B1
6398708 Hastings et al. Jun 2002 B1
6402735 Langevin Jun 2002 B1
6402746 Whayne et al. Jun 2002 B1
6406440 Stefanchik Jun 2002 B1
6409727 Bales et al. Jun 2002 B1
6409733 Conlon et al. Jun 2002 B1
6419639 Walther et al. Jul 2002 B2
6419641 Mark et al. Jul 2002 B1
6427089 Knowlton Jul 2002 B1
6431500 Jacobs et al. Aug 2002 B1
6436107 Wang et al. Aug 2002 B1
6443970 Schulze et al. Sep 2002 B1
6443988 Felt et al. Sep 2002 B2
6447444 Avni et al. Sep 2002 B1
6447511 Slater Sep 2002 B1
6447523 Middleman et al. Sep 2002 B1
6454783 Piskun Sep 2002 B1
6454785 De Hoyos Garza Sep 2002 B2
6458074 Matsui et al. Oct 2002 B1
6458076 Pruitt Oct 2002 B1
6464701 Hooven et al. Oct 2002 B1
6464702 Schulze et al. Oct 2002 B2
6470218 Behl Oct 2002 B1
6475104 Lutz et al. Nov 2002 B1
6485411 Konstorum et al. Nov 2002 B1
6489745 Koreis Dec 2002 B1
6491626 Stone et al. Dec 2002 B1
6491627 Komi Dec 2002 B1
6491691 Morley et al. Dec 2002 B1
6493590 Wessman et al. Dec 2002 B1
6494893 Dubrul et al. Dec 2002 B2
6500176 Truckai et al. Dec 2002 B1
6503192 Ouchi Jan 2003 B1
6506190 Walshe Jan 2003 B1
6508827 Manhes Jan 2003 B1
6514239 Shimmura et al. Feb 2003 B2
6517534 McGovern et al. Feb 2003 B1
6520954 Ouchi Feb 2003 B2
6526320 Mitchell Feb 2003 B2
6527782 Hogg et al. Mar 2003 B2
6530880 Pagliuca Mar 2003 B2
6530922 Cosman et al. Mar 2003 B2
6535764 Imran et al. Mar 2003 B2
6537200 Leysieffer et al. Mar 2003 B2
6543456 Freeman Apr 2003 B1
6551270 Bimbo et al. Apr 2003 B1
6551356 Rousseau Apr 2003 B2
6554766 Maeda et al. Apr 2003 B2
6554823 Palmer et al. Apr 2003 B2
6554829 Schulze et al. Apr 2003 B2
6558384 Mayenberger May 2003 B2
6562034 Edwards et al. May 2003 B2
6562035 Levin May 2003 B1
6562052 Nobles et al. May 2003 B2
6569120 Green et al. May 2003 B1
6569159 Edwards et al. May 2003 B1
6572629 Kalloo et al. Jun 2003 B2
6572635 Bonutti Jun 2003 B1
6575988 Rousseau Jun 2003 B2
6579311 Makower Jun 2003 B1
6581889 Carpenter et al. Jun 2003 B2
6585642 Christopher Jul 2003 B2
6585717 Wittenberger et al. Jul 2003 B1
6587750 Gerbi et al. Jul 2003 B2
6592559 Pakter et al. Jul 2003 B1
6592603 Lasner Jul 2003 B2
6594971 Addy et al. Jul 2003 B1
6602262 Griego et al. Aug 2003 B2
6605105 Cuschieri et al. Aug 2003 B1
6610072 Christy et al. Aug 2003 B1
6610074 Santilli Aug 2003 B2
6613038 Bonutti et al. Sep 2003 B2
6613068 Ouchi Sep 2003 B2
6616632 Sharp et al. Sep 2003 B2
6620193 Lau et al. Sep 2003 B1
6623448 Slater Sep 2003 B2
6626919 Swanstrom Sep 2003 B1
6632171 Iddan et al. Oct 2003 B2
6632229 Yamanouchi Oct 2003 B1
6632234 Kieturakis et al. Oct 2003 B2
6638275 McGaffigan et al. Oct 2003 B1
6638286 Burbank et al. Oct 2003 B1
6645225 Atkinson Nov 2003 B1
6652518 Wellman et al. Nov 2003 B2
6652521 Schulze Nov 2003 B2
6652545 Shipp et al. Nov 2003 B2
6652551 Heiss Nov 2003 B1
6656194 Gannoe et al. Dec 2003 B1
6663641 Kovac et al. Dec 2003 B1
6663655 Ginn et al. Dec 2003 B2
6666854 Lange Dec 2003 B1
6672338 Esashi et al. Jan 2004 B1
6673058 Snow Jan 2004 B2
6673070 Edwards et al. Jan 2004 B2
6673087 Chang et al. Jan 2004 B1
6673092 Bacher Jan 2004 B1
6676685 Pedros et al. Jan 2004 B2
6679882 Kornerup Jan 2004 B1
6685628 Vu Feb 2004 B2
6685724 Haluck Feb 2004 B1
6692445 Roberts et al. Feb 2004 B2
6692462 Mackenzie et al. Feb 2004 B2
6692493 McGovern et al. Feb 2004 B2
6699180 Kobayashi Mar 2004 B2
6699256 Logan et al. Mar 2004 B1
6699263 Cope Mar 2004 B2
6706018 Westlund et al. Mar 2004 B2
6708066 Herbst et al. Mar 2004 B2
6709188 Ushimaru Mar 2004 B2
6709445 Boebel et al. Mar 2004 B2
6716226 Sixto, Jr. et al. Apr 2004 B2
6731875 Kartalopoulos May 2004 B1
6736822 McClellan et al. May 2004 B2
6740030 Martone et al. May 2004 B2
6740082 Shadduck May 2004 B2
6743166 Berci et al. Jun 2004 B2
6743226 Cosman et al. Jun 2004 B2
6743239 Kuehn et al. Jun 2004 B1
6743240 Smith et al. Jun 2004 B2
6749560 Konstorum et al. Jun 2004 B1
6749609 Lunsford et al. Jun 2004 B1
6752768 Burdorff et al. Jun 2004 B2
6752811 Chu et al. Jun 2004 B2
6752822 Jespersen Jun 2004 B2
6758857 Cioanta et al. Jul 2004 B2
6761685 Adams et al. Jul 2004 B2
6761718 Madsen Jul 2004 B2
6761722 Cole et al. Jul 2004 B2
6767356 Kanner et al. Jul 2004 B2
6773434 Ciarrocca Aug 2004 B2
6776165 Jin Aug 2004 B2
6776787 Phung et al. Aug 2004 B2
6780151 Grabover et al. Aug 2004 B2
6780352 Jacobson Aug 2004 B2
6783491 Saadat et al. Aug 2004 B2
6786382 Hoffman Sep 2004 B1
6786864 Matsuura et al. Sep 2004 B2
6786905 Swanson et al. Sep 2004 B2
6788977 Fenn et al. Sep 2004 B2
6790173 Saadat et al. Sep 2004 B2
6790217 Schulze et al. Sep 2004 B2
6795728 Chornenky et al. Sep 2004 B2
6800056 Tartaglia et al. Oct 2004 B2
6808491 Kortenbach et al. Oct 2004 B2
6817974 Cooper et al. Nov 2004 B2
6818007 Dampney et al. Nov 2004 B1
6824548 Smith et al. Nov 2004 B2
6830545 Bendall Dec 2004 B2
6836688 Ingle et al. Dec 2004 B2
6837847 Ewers et al. Jan 2005 B2
6840246 Downing Jan 2005 B2
6840938 Morley et al. Jan 2005 B1
6843794 Sixto, Jr. et al. Jan 2005 B2
6861250 Cole et al. Mar 2005 B1
6866627 Nozue Mar 2005 B2
6866628 Goodman et al. Mar 2005 B2
6869394 Ishibiki Mar 2005 B2
6878106 Herrmann Apr 2005 B1
6878110 Yang et al. Apr 2005 B2
6881213 Ryan et al. Apr 2005 B2
6881216 Di Caprio et al. Apr 2005 B2
6884213 Raz et al. Apr 2005 B2
6887255 Shimm May 2005 B2
6889089 Behl et al. May 2005 B2
6890295 Michels et al. May 2005 B2
6896683 Gadberry et al. May 2005 B1
6896692 Ginn et al. May 2005 B2
6899710 Hooven May 2005 B2
6908427 Fleener et al. Jun 2005 B2
6908476 Jud et al. Jun 2005 B2
6913613 Schwarz et al. Jul 2005 B2
6916284 Moriyama Jul 2005 B2
6918871 Schulze Jul 2005 B2
6918906 Long Jul 2005 B2
6918908 Bonner et al. Jul 2005 B2
6926723 Mulhauser et al. Aug 2005 B1
6926725 Cooke et al. Aug 2005 B2
6932810 Ryan Aug 2005 B2
6932824 Roop et al. Aug 2005 B1
6932827 Cole Aug 2005 B2
6932834 Lizardi et al. Aug 2005 B2
6936003 Iddan Aug 2005 B2
6939290 Iddan Sep 2005 B2
6939292 Mizuno Sep 2005 B2
6939327 Hall et al. Sep 2005 B2
6939347 Thompson Sep 2005 B2
6942613 Ewers et al. Sep 2005 B2
6944490 Chow Sep 2005 B1
6945472 Wuttke et al. Sep 2005 B2
6945979 Kortenbach et al. Sep 2005 B2
6949096 Davison et al. Sep 2005 B2
6955641 Lubock Oct 2005 B2
6955683 Bonutti Oct 2005 B2
6958035 Friedman et al. Oct 2005 B2
6960162 Saadat et al. Nov 2005 B2
6960163 Ewers et al. Nov 2005 B2
6960183 Nicolette Nov 2005 B2
6962587 Johnson et al. Nov 2005 B2
6964662 Kidooka Nov 2005 B2
6966909 Marshall et al. Nov 2005 B2
6966919 Sixto, Jr. et al. Nov 2005 B2
6967462 Landis Nov 2005 B1
6971988 Orban, III Dec 2005 B2
6972017 Smith et al. Dec 2005 B2
6974411 Belson Dec 2005 B2
6976992 Sachatello et al. Dec 2005 B2
6980858 Fuimaono et al. Dec 2005 B2
6984203 Tartaglia et al. Jan 2006 B2
6984205 Gazdzinski Jan 2006 B2
6986738 Glukhovsky et al. Jan 2006 B2
6986774 Middleman et al. Jan 2006 B2
6988987 Ishikawa et al. Jan 2006 B2
6989028 Lashinski et al. Jan 2006 B2
6991602 Nakazawa et al. Jan 2006 B2
6991627 Madhani et al. Jan 2006 B2
6991631 Woloszko et al. Jan 2006 B2
6994706 Chornenky et al. Feb 2006 B2
6994708 Manzo Feb 2006 B2
6997870 Couvillon, Jr. Feb 2006 B2
6997931 Sauer et al. Feb 2006 B2
7000818 Shelton, IV et al. Feb 2006 B2
7001329 Kobayashi et al. Feb 2006 B2
7001341 Gellman et al. Feb 2006 B2
7008375 Weisel Mar 2006 B2
7008419 Shadduck Mar 2006 B2
7009634 Iddan et al. Mar 2006 B2
7010340 Scarantino et al. Mar 2006 B2
7011669 Kimblad Mar 2006 B2
7018373 Suzuki Mar 2006 B2
7020531 Colliou et al. Mar 2006 B1
7025580 Heagy et al. Apr 2006 B2
7025721 Cohen et al. Apr 2006 B2
7029435 Nakao Apr 2006 B2
7029438 Morin et al. Apr 2006 B2
7029450 Gellman Apr 2006 B2
7032600 Fukuda et al. Apr 2006 B2
7035680 Partridge et al. Apr 2006 B2
7037290 Gardeski et al. May 2006 B2
7041052 Saadat et al. May 2006 B2
7052454 Taylor May 2006 B2
7052489 Griego et al. May 2006 B2
7056330 Gayton Jun 2006 B2
7060024 Long et al. Jun 2006 B2
7060025 Long et al. Jun 2006 B2
7063697 Slater Jun 2006 B2
7063715 Onuki et al. Jun 2006 B2
7066879 Fowler et al. Jun 2006 B2
7066936 Ryan Jun 2006 B2
7070559 Adams et al. Jul 2006 B2
7070602 Smith et al. Jul 2006 B2
7076305 Imran et al. Jul 2006 B2
7083618 Couture et al. Aug 2006 B2
7083620 Jahns et al. Aug 2006 B2
7083629 Weller et al. Aug 2006 B2
7083635 Ginn Aug 2006 B2
7087010 Ootawara et al. Aug 2006 B2
7087071 Nicholas et al. Aug 2006 B2
7088923 Haruyama Aug 2006 B2
7090673 Dycus et al. Aug 2006 B2
7090683 Brock et al. Aug 2006 B2
7090685 Kortenbach et al. Aug 2006 B2
7093518 Gmeilbauer Aug 2006 B2
7101371 Dycus et al. Sep 2006 B2
7101372 Dycus et al. Sep 2006 B2
7101373 Dycus et al. Sep 2006 B2
7105000 McBrayer Sep 2006 B2
7105005 Blake Sep 2006 B2
7108696 Daniel et al. Sep 2006 B2
7108703 Danitz et al. Sep 2006 B2
7112208 Morris et al. Sep 2006 B2
7115092 Park et al. Oct 2006 B2
7115124 Xiao Oct 2006 B1
7117703 Kato et al. Oct 2006 B2
7118531 Krill Oct 2006 B2
7118578 West, Jr. et al. Oct 2006 B2
7118587 Dycus et al. Oct 2006 B2
7128708 Saadat et al. Oct 2006 B2
7130697 Chornenky et al. Oct 2006 B2
RE39415 Bales et al. Nov 2006 E
7131978 Sancoff et al. Nov 2006 B2
7131979 DiCarlo et al. Nov 2006 B2
7131980 Field et al. Nov 2006 B1
7137980 Buysse et al. Nov 2006 B2
7137981 Long Nov 2006 B2
7146984 Stack et al. Dec 2006 B2
7147650 Lee Dec 2006 B2
7150097 Sremcich et al. Dec 2006 B2
7150655 Mastrototaro et al. Dec 2006 B2
7150750 Damarati Dec 2006 B2
7152488 Hedrich et al. Dec 2006 B2
7153321 Andrews Dec 2006 B2
7156845 Mulier et al. Jan 2007 B2
7160296 Pearson et al. Jan 2007 B2
7163525 Franer Jan 2007 B2
7169104 Ueda et al. Jan 2007 B2
7172714 Jacobson Feb 2007 B2
7175591 Kaladelfos Feb 2007 B2
7179254 Pendekanti et al. Feb 2007 B2
7186265 Sharkawy et al. Mar 2007 B2
7188627 Nelson et al. Mar 2007 B2
7195612 Van Sloten et al. Mar 2007 B2
7195631 Dumbauld Mar 2007 B2
7204820 Akahoshi Apr 2007 B2
7207997 Shipp et al. Apr 2007 B2
7208005 Frecker et al. Apr 2007 B2
7211089 Kear et al. May 2007 B2
7211092 Hughett May 2007 B2
7220227 Sasaki et al. May 2007 B2
7223271 Muramatsu et al. May 2007 B2
7223272 Francere et al. May 2007 B2
7229438 Young Jun 2007 B2
7232414 Gonzalez Jun 2007 B2
7232445 Kortenbach et al. Jun 2007 B2
7235089 McGuckin, Jr. Jun 2007 B1
7241290 Doyle et al. Jul 2007 B2
7241295 Maguire et al. Jul 2007 B2
7244228 Lubowski Jul 2007 B2
7250027 Barry Jul 2007 B2
7252660 Kunz Aug 2007 B2
7255675 Gertner et al. Aug 2007 B2
7261725 Binmoeller Aug 2007 B2
7270663 Nakao Sep 2007 B2
7288075 Parihar et al. Oct 2007 B2
7291127 Eidenschink Nov 2007 B2
7294139 Gengler Nov 2007 B1
7301250 Cassel Nov 2007 B2
7306597 Manzo Dec 2007 B2
7308828 Hashimoto Dec 2007 B2
7311107 Harel et al. Dec 2007 B2
7318802 Suzuki et al. Jan 2008 B2
7320695 Carroll Jan 2008 B2
7322934 Miyake et al. Jan 2008 B2
7323006 Andreas et al. Jan 2008 B2
7329256 Johnson et al. Feb 2008 B2
7329257 Kanehira et al. Feb 2008 B2
7329383 Stinson Feb 2008 B2
7335220 Khosravi et al. Feb 2008 B2
7341554 Sekine et al. Mar 2008 B2
7344536 Lunsford et al. Mar 2008 B1
7352387 Yamamoto Apr 2008 B2
7364582 Lee Apr 2008 B2
7371215 Colliou et al. May 2008 B2
7381216 Buzzard et al. Jun 2008 B2
7390324 Whalen et al. Jun 2008 B2
7393322 Wenchell Jul 2008 B2
7402162 Ouchi Jul 2008 B2
7404791 Linares et al. Jul 2008 B2
7410483 Danitz et al. Aug 2008 B2
7413563 Corcoran et al. Aug 2008 B2
7416554 Lam et al. Aug 2008 B2
7422590 Kupferschmid et al. Sep 2008 B2
7435229 Wolf Oct 2008 B2
7435257 Lashinski et al. Oct 2008 B2
7441507 Teraura et al. Oct 2008 B2
7442166 Huang et al. Oct 2008 B2
7452327 Durgin et al. Nov 2008 B2
7455208 Wales et al. Nov 2008 B2
7455675 Schur et al. Nov 2008 B2
7468066 Vargas et al. Dec 2008 B2
7476237 Taniguchi et al. Jan 2009 B2
7479104 Lau et al. Jan 2009 B2
7485093 Glukhovsky Feb 2009 B2
7488295 Burbank et al. Feb 2009 B2
7494499 Nagase et al. Feb 2009 B2
7497867 Lasner et al. Mar 2009 B2
7498950 Ertas et al. Mar 2009 B1
7507200 Okada Mar 2009 B2
7507239 Shadduck Mar 2009 B2
7510107 Timm et al. Mar 2009 B2
7511733 Takizawa et al. Mar 2009 B2
7515953 Madar et al. Apr 2009 B2
7520876 Ressemann et al. Apr 2009 B2
7524281 Chu et al. Apr 2009 B2
7524302 Tower Apr 2009 B2
7534228 Williams May 2009 B2
7540872 Schechter et al. Jun 2009 B2
7542807 Bertolero et al. Jun 2009 B2
7544203 Chin et al. Jun 2009 B2
7548040 Lee et al. Jun 2009 B2
7549564 Boudreaux Jun 2009 B2
7549991 Lu et al. Jun 2009 B2
7549998 Braun Jun 2009 B2
7553278 Kucklick Jun 2009 B2
7553298 Hunt et al. Jun 2009 B2
7559452 Wales et al. Jul 2009 B2
7559887 Dannan Jul 2009 B2
7559916 Smith et al. Jul 2009 B2
7560006 Rakos et al. Jul 2009 B2
7561907 Fuimaono et al. Jul 2009 B2
7561916 Hunt et al. Jul 2009 B2
7565201 Blackmore et al. Jul 2009 B2
7566334 Christian et al. Jul 2009 B2
7575144 Ortiz et al. Aug 2009 B2
7575548 Takemoto et al. Aug 2009 B2
7579550 Dayton et al. Aug 2009 B2
7582096 Gellman et al. Sep 2009 B2
7588177 Racenet Sep 2009 B2
7588557 Nakao Sep 2009 B2
7591781 Hirata Sep 2009 B2
7597229 Boudreaux et al. Oct 2009 B2
7604150 Boudreaux Oct 2009 B2
7608083 Lee et al. Oct 2009 B2
7611479 Cragg et al. Nov 2009 B2
7615002 Rothweiler et al. Nov 2009 B2
7615005 Stefanchik et al. Nov 2009 B2
7618398 Holman et al. Nov 2009 B2
7618437 Nakao Nov 2009 B2
7621936 Cragg et al. Nov 2009 B2
7632250 Smith et al. Dec 2009 B2
7635373 Ortiz Dec 2009 B2
7637903 Lentz et al. Dec 2009 B2
7648519 Lee et al. Jan 2010 B2
7650742 Ushijima Jan 2010 B2
7651483 Byrum et al. Jan 2010 B2
7651509 Bojarski et al. Jan 2010 B2
7653438 Deem et al. Jan 2010 B2
7654431 Hueil et al. Feb 2010 B2
7655004 Long Feb 2010 B2
7662089 Okada et al. Feb 2010 B2
7666180 Holsten et al. Feb 2010 B2
7666203 Chanduszko et al. Feb 2010 B2
7670282 Mathis Mar 2010 B2
7670336 Young et al. Mar 2010 B2
7674259 Shadduck Mar 2010 B2
7678043 Gilad Mar 2010 B2
7680543 Azure Mar 2010 B2
7684599 Horn et al. Mar 2010 B2
7684851 Miyake et al. Mar 2010 B2
7686826 Lee et al. Mar 2010 B2
7697970 Uchiyama et al. Apr 2010 B2
7699835 Lee et al. Apr 2010 B2
7699864 Kick et al. Apr 2010 B2
7713189 Hanke May 2010 B2
7713270 Suzuki May 2010 B2
7721742 Kalloo et al. May 2010 B2
7736374 Vaughan et al. Jun 2010 B2
7744615 Couture Jun 2010 B2
7749161 Beckman et al. Jul 2010 B2
7751866 Aoki et al. Jul 2010 B2
7753901 Piskun et al. Jul 2010 B2
7753933 Ginn et al. Jul 2010 B2
7758577 Nobis et al. Jul 2010 B2
7762949 Nakao Jul 2010 B2
7762998 Birk et al. Jul 2010 B2
7763012 Petrick et al. Jul 2010 B2
7765010 Chornenky et al. Jul 2010 B2
7766896 Kornkven Volk et al. Aug 2010 B2
7770584 Danek et al. Aug 2010 B2
7771416 Spivey et al. Aug 2010 B2
7771437 Hogg et al. Aug 2010 B2
7776035 Rick et al. Aug 2010 B2
7780683 Roue et al. Aug 2010 B2
7780691 Stefanchik Aug 2010 B2
7784663 Shelton, IV Aug 2010 B2
7794409 Damarati Sep 2010 B2
7794447 Dann et al. Sep 2010 B2
7794458 McIntyre et al. Sep 2010 B2
7794475 Hess et al. Sep 2010 B2
7798386 Schall et al. Sep 2010 B2
7815565 Stefanchik et al. Oct 2010 B2
7815566 Stefanchik et al. Oct 2010 B2
7815659 Conlon et al. Oct 2010 B2
7815662 Spivey et al. Oct 2010 B2
7819836 Levine et al. Oct 2010 B2
7828186 Wales Nov 2010 B2
7833156 Williams et al. Nov 2010 B2
7833238 Nakao Nov 2010 B2
7837615 Le et al. Nov 2010 B2
7842028 Lee Nov 2010 B2
7842068 Ginn Nov 2010 B2
7846171 Kullas et al. Dec 2010 B2
7850660 Uth et al. Dec 2010 B2
7857183 Shelton, IV Dec 2010 B2
7862546 Conlon et al. Jan 2011 B2
7862553 Ewaschuk Jan 2011 B2
7867216 Wahr et al. Jan 2011 B2
7871371 Komiya et al. Jan 2011 B2
7879004 Seibel et al. Feb 2011 B2
7883458 Hamel Feb 2011 B2
7887530 Zemlok et al. Feb 2011 B2
7887558 Lin et al. Feb 2011 B2
7892220 Faller et al. Feb 2011 B2
7896804 Uchimura et al. Mar 2011 B2
7896887 Rimbaugh et al. Mar 2011 B2
7905828 Brock et al. Mar 2011 B2
7909809 Scopton et al. Mar 2011 B2
7914513 Voorhees, Jr. Mar 2011 B2
7918785 Okada et al. Apr 2011 B2
7918869 Saadat et al. Apr 2011 B2
7922743 Heinrich et al. Apr 2011 B2
7927271 Dimitriou et al. Apr 2011 B2
7931624 Smith et al. Apr 2011 B2
7937143 Demarais et al. May 2011 B2
7945332 Schechter May 2011 B2
7947000 Vargas et al. May 2011 B2
7953326 Farr et al. May 2011 B2
7955298 Carroll et al. Jun 2011 B2
7959627 Utley et al. Jun 2011 B2
7959629 Young et al. Jun 2011 B2
7963975 Criscuolo Jun 2011 B2
7965180 Koyama Jun 2011 B2
7967808 Fitzgerald et al. Jun 2011 B2
7969473 Kotoda Jun 2011 B2
7972330 Alejandro et al. Jul 2011 B2
7976458 Stefanchik et al. Jul 2011 B2
7976552 Suzuki Jul 2011 B2
7985239 Suzuki Jul 2011 B2
7988618 Mikkaichi et al. Aug 2011 B2
7988685 Ziaie et al. Aug 2011 B2
8007495 McDaniel et al. Aug 2011 B2
8021362 Deem et al. Sep 2011 B2
8029504 Long Oct 2011 B2
8034046 Eidenschink Oct 2011 B2
8037591 Spivey et al. Oct 2011 B2
8048067 Davalos et al. Nov 2011 B2
8048108 Sibbitt et al. Nov 2011 B2
8052699 Sherwinter Nov 2011 B1
8057510 Ginn et al. Nov 2011 B2
8062306 Nobis et al. Nov 2011 B2
8062311 Litscher et al. Nov 2011 B2
8066632 Dario et al. Nov 2011 B2
8066702 Ritman, III et al. Nov 2011 B2
8070759 Stefanchik et al. Dec 2011 B2
8070804 Hyde et al. Dec 2011 B2
8075572 Stefanchik et al. Dec 2011 B2
8075587 Ginn Dec 2011 B2
8088062 Zwolinski Jan 2012 B2
8096459 Ortiz et al. Jan 2012 B2
8096941 Fowler et al. Jan 2012 B2
8100922 Griffith Jan 2012 B2
8109872 Kennedy, II et al. Feb 2012 B2
8114072 Long et al. Feb 2012 B2
8114119 Spivey et al. Feb 2012 B2
8118821 Mouw Feb 2012 B2
8118834 Goraltchouk et al. Feb 2012 B1
8131371 Demarals et al. Mar 2012 B2
8147424 Kassab et al. Apr 2012 B2
8157813 Ko et al. Apr 2012 B2
8157834 Conlon Apr 2012 B2
8172772 Zwolinski et al. May 2012 B2
8182414 Handa et al. May 2012 B2
8187166 Kuth et al. May 2012 B2
8200334 Min et al. Jun 2012 B1
8206295 Kaul Jun 2012 B2
8211125 Spivey Jul 2012 B2
8216224 Morris et al. Jul 2012 B2
8221310 Saadat et al. Jul 2012 B2
8221411 Francischelli et al. Jul 2012 B2
8241204 Spivey Aug 2012 B2
8251068 Schnell Aug 2012 B2
8252057 Fox Aug 2012 B2
8262563 Bakos et al. Sep 2012 B2
8262655 Ghabrial et al. Sep 2012 B2
8262680 Swain et al. Sep 2012 B2
8267854 Asada et al. Sep 2012 B2
8303581 Arts et al. Nov 2012 B2
8308738 Nobis et al. Nov 2012 B2
8317806 Coe et al. Nov 2012 B2
8317814 Karasawa et al. Nov 2012 B2
8328836 Conlon et al. Dec 2012 B2
8337394 Vakharia Dec 2012 B2
8337492 Kunis et al. Dec 2012 B2
8343041 Byers et al. Jan 2013 B2
8353487 Trusty et al. Jan 2013 B2
8357170 Stefanchik Jan 2013 B2
8359093 Wariar Jan 2013 B2
8361066 Long et al. Jan 2013 B2
8361112 Carroll, II et al. Jan 2013 B2
8377057 Rick et al. Feb 2013 B2
8403926 Nobis et al. Mar 2013 B2
8409200 Holcomb et al. Apr 2013 B2
8425505 Long Apr 2013 B2
8430811 Hess et al. Apr 2013 B2
8449452 Iddan et al. May 2013 B2
8449538 Long May 2013 B2
8454594 Demarais et al. Jun 2013 B2
8475359 Asada et al. Jul 2013 B2
8480657 Bakos Jul 2013 B2
8480689 Spivey et al. Jul 2013 B2
8485968 Weimer et al. Jul 2013 B2
8496574 Trusty et al. Jul 2013 B2
8500697 Kurth et al. Aug 2013 B2
8506564 Long et al. Aug 2013 B2
8512335 Cheng et al. Aug 2013 B2
8523939 Hausen Sep 2013 B1
8529563 Long et al. Sep 2013 B2
8545396 Cover et al. Oct 2013 B2
8568410 Vakharia et al. Oct 2013 B2
8579897 Vakharia et al. Nov 2013 B2
8608652 Voegele et al. Dec 2013 B2
8623011 Spivey Jan 2014 B2
8636648 Gazdzinski Jan 2014 B2
8636730 Keppel Jan 2014 B2
8640940 Ohdaira Feb 2014 B2
8652150 Swain et al. Feb 2014 B2
8668686 Govari et al. Mar 2014 B2
8679003 Spivey Mar 2014 B2
8727967 Weitzner May 2014 B2
8747401 Gonzalez et al. Jun 2014 B2
8753335 Moshe et al. Jun 2014 B2
8771173 Fonger et al. Jul 2014 B2
8771260 Conlon et al. Jul 2014 B2
8828031 Fox et al. Sep 2014 B2
8880185 Hastings et al. Nov 2014 B2
8888792 Harris et al. Nov 2014 B2
8906035 Zwolinski et al. Dec 2014 B2
8911452 Skakoon et al. Dec 2014 B2
8939897 Nobis Jan 2015 B2
8986199 Weisenburgh, II et al. Mar 2015 B2
9005198 Long et al. Apr 2015 B2
9011431 Long et al. Apr 2015 B2
9028483 Long et al. May 2015 B2
9049987 Conlon et al. Jun 2015 B2
9078662 Bakos et al. Jul 2015 B2
9220526 Conlon Dec 2015 B2
9226772 Fox Jan 2016 B2
9233241 Long Jan 2016 B2
9254169 Long et al. Feb 2016 B2
9271796 Buysse et al. Mar 2016 B2
9277957 Long et al. Mar 2016 B2
9314620 Long et al. Apr 2016 B2
9375268 Long Jun 2016 B2
9427255 Griffith et al. Aug 2016 B2
20010023333 Wise et al. Sep 2001 A1
20020022771 Diokno et al. Feb 2002 A1
20020022857 Goldsteen et al. Feb 2002 A1
20020023353 Ting-Kung Feb 2002 A1
20020029055 Bonutti Mar 2002 A1
20020042562 Meron et al. Apr 2002 A1
20020049439 Mulier et al. Apr 2002 A1
20020068945 Sixto, Jr. et al. Jun 2002 A1
20020078967 Sixto, Jr. et al. Jun 2002 A1
20020082516 Stefanchik Jun 2002 A1
20020082551 Yachia et al. Jun 2002 A1
20020095164 Andreas et al. Jul 2002 A1
20020107530 Sauer et al. Aug 2002 A1
20020133115 Gordon et al. Sep 2002 A1
20020138086 Sixto, Jr. et al. Sep 2002 A1
20020147456 Diduch et al. Oct 2002 A1
20020165592 Glukhovsky et al. Nov 2002 A1
20020173805 Matsuno et al. Nov 2002 A1
20020183591 Matsuura et al. Dec 2002 A1
20030014090 Abrahamson Jan 2003 A1
20030018373 Eckhardt et al. Jan 2003 A1
20030023255 Miles et al. Jan 2003 A1
20030036679 Kortenbach et al. Feb 2003 A1
20030069602 Jacobs et al. Apr 2003 A1
20030078471 Foley et al. Apr 2003 A1
20030083681 Moutafis et al. May 2003 A1
20030114731 Cadeddu et al. Jun 2003 A1
20030114732 Webler et al. Jun 2003 A1
20030120257 Houston et al. Jun 2003 A1
20030124009 Ravi et al. Jul 2003 A1
20030130564 Martone et al. Jul 2003 A1
20030130656 Levin Jul 2003 A1
20030139646 Sharrow et al. Jul 2003 A1
20030158521 Ameri Aug 2003 A1
20030167062 Gambale et al. Sep 2003 A1
20030171651 Page et al. Sep 2003 A1
20030176880 Long et al. Sep 2003 A1
20030187351 Franck et al. Oct 2003 A1
20030216611 Vu Nov 2003 A1
20030216615 Ouchi Nov 2003 A1
20030220545 Ouchi Nov 2003 A1
20030225312 Suzuki et al. Dec 2003 A1
20030225332 Okada et al. Dec 2003 A1
20030229269 Humphrey Dec 2003 A1
20030229371 Whitworth Dec 2003 A1
20030236549 Bonadio et al. Dec 2003 A1
20040002683 Nicholson et al. Jan 2004 A1
20040024414 Downing Feb 2004 A1
20040034369 Sauer et al. Feb 2004 A1
20040054322 Vargas Mar 2004 A1
20040098007 Heiss May 2004 A1
20040101456 Kuroshima et al. May 2004 A1
20040104999 Okada Jun 2004 A1
20040116948 Sixto, Jr. et al. Jun 2004 A1
20040127940 Ginn et al. Jul 2004 A1
20040133077 Obenchain et al. Jul 2004 A1
20040133089 Kilcoyne et al. Jul 2004 A1
20040136779 Bhaskar Jul 2004 A1
20040138525 Saadat et al. Jul 2004 A1
20040138529 Wiltshire et al. Jul 2004 A1
20040138587 Lyons, IV Jul 2004 A1
20040161451 Pierce et al. Aug 2004 A1
20040167545 Sadler et al. Aug 2004 A1
20040176699 Walker et al. Sep 2004 A1
20040186350 Brenneman et al. Sep 2004 A1
20040193009 Jaffe et al. Sep 2004 A1
20040193146 Lee et al. Sep 2004 A1
20040193186 Kortenbach et al. Sep 2004 A1
20040193188 Francese Sep 2004 A1
20040193189 Kortenbach et al. Sep 2004 A1
20040193200 Dworschak et al. Sep 2004 A1
20040199052 Banik et al. Oct 2004 A1
20040199159 Lee et al. Oct 2004 A1
20040206859 Chong et al. Oct 2004 A1
20040210245 Erickson et al. Oct 2004 A1
20040215058 Zirps et al. Oct 2004 A1
20040225183 Michlitsch et al. Nov 2004 A1
20040225186 Horne, Jr. et al. Nov 2004 A1
20040225323 Nagase et al. Nov 2004 A1
20040230095 Stefanchik et al. Nov 2004 A1
20040230096 Stefanchik et al. Nov 2004 A1
20040230161 Zeiner Nov 2004 A1
20040243108 Suzuki Dec 2004 A1
20040249246 Campos Dec 2004 A1
20040249367 Saadat et al. Dec 2004 A1
20040249394 Morris et al. Dec 2004 A1
20040249443 Shanley et al. Dec 2004 A1
20040254572 McIntyre et al. Dec 2004 A1
20040260198 Rothberg et al. Dec 2004 A1
20040260315 Dell et al. Dec 2004 A1
20040260337 Freed Dec 2004 A1
20050004515 Hart et al. Jan 2005 A1
20050033265 Engel et al. Feb 2005 A1
20050033277 Clague et al. Feb 2005 A1
20050033319 Gambale et al. Feb 2005 A1
20050033333 Smith et al. Feb 2005 A1
20050043690 Todd Feb 2005 A1
20050049616 Rivera et al. Mar 2005 A1
20050059963 Phan et al. Mar 2005 A1
20050059964 Fitz Mar 2005 A1
20050065397 Saadat et al. Mar 2005 A1
20050065509 Coldwell et al. Mar 2005 A1
20050065517 Chin Mar 2005 A1
20050070754 Nobis et al. Mar 2005 A1
20050070763 Nobis et al. Mar 2005 A1
20050070764 Nobis et al. Mar 2005 A1
20050070947 Franer et al. Mar 2005 A1
20050080413 Canady Apr 2005 A1
20050080435 Smith et al. Apr 2005 A1
20050085693 Belson et al. Apr 2005 A1
20050085832 Sancoff et al. Apr 2005 A1
20050090837 Sixto, Jr. et al. Apr 2005 A1
20050090838 Sixto, Jr. et al. Apr 2005 A1
20050096502 Khalili May 2005 A1
20050101837 Kalloo et al. May 2005 A1
20050101838 Camillocci et al. May 2005 A1
20050101984 Chanduszko et al. May 2005 A1
20050107663 Saadat et al. May 2005 A1
20050107664 Kalloo et al. May 2005 A1
20050110881 Glukhovsky et al. May 2005 A1
20050113847 Gadberry et al. May 2005 A1
20050119613 Moenning et al. Jun 2005 A1
20050124855 Jaffe et al. Jun 2005 A1
20050125010 Smith et al. Jun 2005 A1
20050131279 Boulais et al. Jun 2005 A1
20050131457 Douglas et al. Jun 2005 A1
20050137454 Saadat et al. Jun 2005 A1
20050143647 Minai et al. Jun 2005 A1
20050143690 High Jun 2005 A1
20050143774 Polo Jun 2005 A1
20050143803 Watson et al. Jun 2005 A1
20050149087 Ahlberg et al. Jul 2005 A1
20050149096 Hilal et al. Jul 2005 A1
20050159648 Freed Jul 2005 A1
20050165272 Okada et al. Jul 2005 A1
20050165378 Heinrich et al. Jul 2005 A1
20050165411 Orban, III Jul 2005 A1
20050165429 Douglas et al. Jul 2005 A1
20050182429 Yamanouchi Aug 2005 A1
20050192478 Williams et al. Sep 2005 A1
20050192598 Johnson et al. Sep 2005 A1
20050192602 Manzo Sep 2005 A1
20050192654 Chanduszko et al. Sep 2005 A1
20050209624 Vijay Sep 2005 A1
20050215858 Vail, III Sep 2005 A1
20050216036 Nakao Sep 2005 A1
20050216050 Sepetka et al. Sep 2005 A1
20050228224 Okada et al. Oct 2005 A1
20050228406 Bose Oct 2005 A1
20050234297 Devierre et al. Oct 2005 A1
20050240249 Tu et al. Oct 2005 A1
20050250983 Tremaglio et al. Nov 2005 A1
20050250987 Ewers et al. Nov 2005 A1
20050250990 Le et al. Nov 2005 A1
20050250993 Jaeger Nov 2005 A1
20050251166 Vaughan et al. Nov 2005 A1
20050251176 Swanstrom et al. Nov 2005 A1
20050261674 Nobis et al. Nov 2005 A1
20050267492 Poncet et al. Dec 2005 A1
20050272975 McWeeney et al. Dec 2005 A1
20050272977 Saadat et al. Dec 2005 A1
20050273084 Hinman et al. Dec 2005 A1
20050274935 Nelson Dec 2005 A1
20050277945 Saadat et al. Dec 2005 A1
20050277951 Smith et al. Dec 2005 A1
20050277952 Arp et al. Dec 2005 A1
20050277954 Smith et al. Dec 2005 A1
20050277955 Palmer et al. Dec 2005 A1
20050277956 Francese et al. Dec 2005 A1
20050277957 Kuhns et al. Dec 2005 A1
20050283118 Uth et al. Dec 2005 A1
20050283119 Uth et al. Dec 2005 A1
20050288555 Binmoeller Dec 2005 A1
20060004406 Wehrstein et al. Jan 2006 A1
20060004409 Nobis et al. Jan 2006 A1
20060004410 Nobis et al. Jan 2006 A1
20060015009 Jaffe et al. Jan 2006 A1
20060015131 Kierce et al. Jan 2006 A1
20060020167 Sitzmann Jan 2006 A1
20060020247 Kagan et al. Jan 2006 A1
20060025654 Suzuki et al. Feb 2006 A1
20060025781 Young et al. Feb 2006 A1
20060025812 Shelton, IV Feb 2006 A1
20060025819 Nobis et al. Feb 2006 A1
20060036267 Saadat et al. Feb 2006 A1
20060041188 Dirusso et al. Feb 2006 A1
20060058582 Maahs et al. Mar 2006 A1
20060058776 Bilsbury Mar 2006 A1
20060064083 Khalaj et al. Mar 2006 A1
20060069396 Meade et al. Mar 2006 A1
20060069424 Acosta et al. Mar 2006 A1
20060069425 Hillis et al. Mar 2006 A1
20060069429 Spence et al. Mar 2006 A1
20060074413 Behzadian Apr 2006 A1
20060079890 Guerra Apr 2006 A1
20060089528 Tartaglia et al. Apr 2006 A1
20060095031 Ormsby May 2006 A1
20060095060 Mayenberger et al. May 2006 A1
20060100687 Fahey et al. May 2006 A1
20060106423 Weisel et al. May 2006 A1
20060111209 Hinman et al. May 2006 A1
20060111210 Hinman et al. May 2006 A1
20060111703 Kunis et al. May 2006 A1
20060111704 Brenneman et al. May 2006 A1
20060129166 Lavelle Jun 2006 A1
20060135962 Kick et al. Jun 2006 A1
20060135971 Swanstrom et al. Jun 2006 A1
20060135984 Kramer et al. Jun 2006 A1
20060142644 Mulac et al. Jun 2006 A1
20060142652 Keenan Jun 2006 A1
20060142790 Gertner Jun 2006 A1
20060142798 Holman et al. Jun 2006 A1
20060149129 Watts et al. Jul 2006 A1
20060149131 Or Jul 2006 A1
20060149132 Iddan Jul 2006 A1
20060149135 Paz Jul 2006 A1
20060161190 Gadberry et al. Jul 2006 A1
20060167416 Mathis et al. Jul 2006 A1
20060167482 Swain et al. Jul 2006 A1
20060178560 Saadat et al. Aug 2006 A1
20060183975 Saadat et al. Aug 2006 A1
20060184161 Maahs et al. Aug 2006 A1
20060189844 Tien Aug 2006 A1
20060189845 Maahs et al. Aug 2006 A1
20060190027 Downey Aug 2006 A1
20060195084 Slater Aug 2006 A1
20060200005 Bjork et al. Sep 2006 A1
20060200121 Mowery Sep 2006 A1
20060200169 Sniffin Sep 2006 A1
20060200170 Aranyi Sep 2006 A1
20060200199 Bonutti et al. Sep 2006 A1
20060217665 Prosek Sep 2006 A1
20060217697 Lau et al. Sep 2006 A1
20060217742 Messerly et al. Sep 2006 A1
20060217743 Messerly et al. Sep 2006 A1
20060229639 Whitfield Oct 2006 A1
20060229640 Whitfield Oct 2006 A1
20060237022 Chen et al. Oct 2006 A1
20060237023 Cox et al. Oct 2006 A1
20060241570 Wilk Oct 2006 A1
20060247500 Voegele et al. Nov 2006 A1
20060247576 Poncet Nov 2006 A1
20060247663 Schwartz et al. Nov 2006 A1
20060247673 Voegele et al. Nov 2006 A1
20060253004 Frisch et al. Nov 2006 A1
20060253039 McKenna et al. Nov 2006 A1
20060258907 Stefanchik et al. Nov 2006 A1
20060258908 Stefanchik et al. Nov 2006 A1
20060258910 Stefanchik et al. Nov 2006 A1
20060258954 Timberlake et al. Nov 2006 A1
20060258955 Hoffman et al. Nov 2006 A1
20060259010 Stefanchik et al. Nov 2006 A1
20060259073 Miyamoto et al. Nov 2006 A1
20060264752 Rubinsky et al. Nov 2006 A1
20060264904 Kerby et al. Nov 2006 A1
20060264930 Nishimura Nov 2006 A1
20060270902 Igarashi et al. Nov 2006 A1
20060271042 Latterell et al. Nov 2006 A1
20060271102 Bosshard et al. Nov 2006 A1
20060276835 Uchida Dec 2006 A1
20060281970 Stokes et al. Dec 2006 A1
20060282106 Cole et al. Dec 2006 A1
20060285732 Horn et al. Dec 2006 A1
20060287644 Inganas et al. Dec 2006 A1
20060287666 Saadat et al. Dec 2006 A1
20060293626 Byrum et al. Dec 2006 A1
20070000550 Osinski Jan 2007 A1
20070002135 Glukhovsky Jan 2007 A1
20070005019 Okishige Jan 2007 A1
20070010801 Chen et al. Jan 2007 A1
20070015965 Cox et al. Jan 2007 A1
20070027469 Smith et al. Feb 2007 A1
20070032700 Fowler et al. Feb 2007 A1
20070032701 Fowler et al. Feb 2007 A1
20070043261 Watanabe et al. Feb 2007 A1
20070049800 Boulais Mar 2007 A1
20070049902 Griffin et al. Mar 2007 A1
20070049968 Sibbit et al. Mar 2007 A1
20070051375 Milliman Mar 2007 A1
20070060880 Gregorich et al. Mar 2007 A1
20070066869 Hoffman Mar 2007 A1
20070067017 Trapp Mar 2007 A1
20070073102 Matsuno et al. Mar 2007 A1
20070073269 Becker Mar 2007 A1
20070078439 Grandt et al. Apr 2007 A1
20070079924 Saadat et al. Apr 2007 A1
20070083192 Welch et al. Apr 2007 A1
20070083195 Werneth et al. Apr 2007 A1
20070088370 Kahle et al. Apr 2007 A1
20070100375 Mikkaichi et al. May 2007 A1
20070100376 Mikkaichi et al. May 2007 A1
20070106113 Ravo May 2007 A1
20070106118 Moriyama May 2007 A1
20070106317 Shelton, IV et al. May 2007 A1
20070112251 Nakhuda May 2007 A1
20070112331 Weber et al. May 2007 A1
20070112342 Pearson et al. May 2007 A1
20070112383 Conlon et al. May 2007 A1
20070112385 Conlon May 2007 A1
20070112417 Shanley et al. May 2007 A1
20070112425 Schaller et al. May 2007 A1
20070118115 Artale et al. May 2007 A1
20070123840 Cox May 2007 A1
20070129605 Schaaf Jun 2007 A1
20070129719 Kendale et al. Jun 2007 A1
20070129760 Demarais et al. Jun 2007 A1
20070135709 Rioux et al. Jun 2007 A1
20070135803 Belson Jun 2007 A1
20070142706 Matsui et al. Jun 2007 A1
20070142710 Yokoi et al. Jun 2007 A1
20070142779 Duane et al. Jun 2007 A1
20070142780 Van Lue Jun 2007 A1
20070154460 Kraft et al. Jul 2007 A1
20070156028 Van Lue et al. Jul 2007 A1
20070156116 Gonzalez Jul 2007 A1
20070156127 Rioux et al. Jul 2007 A1
20070161855 Mikkaichi et al. Jul 2007 A1
20070162101 Burgermeister et al. Jul 2007 A1
20070167901 Herrig et al. Jul 2007 A1
20070173686 Lin et al. Jul 2007 A1
20070173691 Yokoi et al. Jul 2007 A1
20070173869 Gannoe et al. Jul 2007 A1
20070173870 Zacharias Jul 2007 A2
20070173872 Neuenfeldt Jul 2007 A1
20070179525 Frecker et al. Aug 2007 A1
20070179530 Tieu et al. Aug 2007 A1
20070191904 Libbus et al. Aug 2007 A1
20070197865 Miyake et al. Aug 2007 A1
20070198057 Gelbart et al. Aug 2007 A1
20070203398 Bonadio et al. Aug 2007 A1
20070203487 Sugita Aug 2007 A1
20070208336 Kim et al. Sep 2007 A1
20070208364 Smith et al. Sep 2007 A1
20070208407 Gerdts et al. Sep 2007 A1
20070213754 Mikkaichi et al. Sep 2007 A1
20070225552 Segawa et al. Sep 2007 A1
20070225554 Maseda et al. Sep 2007 A1
20070233040 Macnamara et al. Oct 2007 A1
20070244356 Carrillo, Jr. et al. Oct 2007 A1
20070244358 Lee Oct 2007 A1
20070250038 Boulais Oct 2007 A1
20070250057 Nobis et al. Oct 2007 A1
20070255096 Stefanchik et al. Nov 2007 A1
20070255100 Barlow et al. Nov 2007 A1
20070255273 Fernandez et al. Nov 2007 A1
20070255303 Bakos et al. Nov 2007 A1
20070255306 Conlon et al. Nov 2007 A1
20070260112 Rahmani Nov 2007 A1
20070260117 Zwolinski et al. Nov 2007 A1
20070260121 Bakos et al. Nov 2007 A1
20070260242 Dycus et al. Nov 2007 A1
20070260273 Cropper et al. Nov 2007 A1
20070260302 Igaki Nov 2007 A1
20070265494 Leanna et al. Nov 2007 A1
20070270629 Charles Nov 2007 A1
20070270889 Conlon et al. Nov 2007 A1
20070270895 Nobis et al. Nov 2007 A1
20070270907 Stokes et al. Nov 2007 A1
20070282165 Hopkins et al. Dec 2007 A1
20070282371 Lee et al. Dec 2007 A1
20070293727 Goldfarb et al. Dec 2007 A1
20070299387 Williams et al. Dec 2007 A1
20080004650 George Jan 2008 A1
20080015409 Barlow et al. Jan 2008 A1
20080015413 Barlow et al. Jan 2008 A1
20080015552 Doyle et al. Jan 2008 A1
20080021416 Arai et al. Jan 2008 A1
20080022927 Zhang et al. Jan 2008 A1
20080027387 Grabinsky Jan 2008 A1
20080033244 Matsui et al. Feb 2008 A1
20080033451 Rieber et al. Feb 2008 A1
20080051629 Sugiyama et al. Feb 2008 A1
20080051735 Measamer et al. Feb 2008 A1
20080058586 Karpiel Mar 2008 A1
20080058854 Kieturakis et al. Mar 2008 A1
20080065169 Colliou et al. Mar 2008 A1
20080071264 Azure Mar 2008 A1
20080086172 Martin et al. Apr 2008 A1
20080091068 Terliuc Apr 2008 A1
20080097159 Ishiguro Apr 2008 A1
20080097472 Agmon et al. Apr 2008 A1
20080097483 Ortiz et al. Apr 2008 A1
20080103527 Martin et al. May 2008 A1
20080114384 Chang et al. May 2008 A1
20080119870 Williams May 2008 A1
20080119891 Miles et al. May 2008 A1
20080125765 Berenshteyn et al. May 2008 A1
20080125774 Palanker et al. May 2008 A1
20080125796 Graham May 2008 A1
20080132892 Lunsford et al. Jun 2008 A1
20080139882 Fujimori Jun 2008 A1
20080140069 Filloux et al. Jun 2008 A1
20080140071 Vegesna Jun 2008 A1
20080147056 van der Weide et al. Jun 2008 A1
20080150754 Quendt Jun 2008 A1
20080171907 Long et al. Jul 2008 A1
20080177135 Muyari et al. Jul 2008 A1
20080188710 Segawa et al. Aug 2008 A1
20080188868 Weitzner et al. Aug 2008 A1
20080200755 Bakos Aug 2008 A1
20080200762 Stokes et al. Aug 2008 A1
20080200911 Long Aug 2008 A1
20080200933 Bakos et al. Aug 2008 A1
20080200934 Fox Aug 2008 A1
20080208189 Van Wyk et al. Aug 2008 A1
20080208213 Benjamin et al. Aug 2008 A1
20080208280 Lindenthaler et al. Aug 2008 A1
20080214890 Motai et al. Sep 2008 A1
20080221587 Schwartz Sep 2008 A1
20080228213 Blakeney et al. Sep 2008 A1
20080230972 Ganley Sep 2008 A1
20080234696 Taylor et al. Sep 2008 A1
20080243106 Coe et al. Oct 2008 A1
20080243148 Mikkaichi et al. Oct 2008 A1
20080243176 Weitzner et al. Oct 2008 A1
20080249567 Kaplan Oct 2008 A1
20080255633 Behl et al. Oct 2008 A1
20080262513 Stahler et al. Oct 2008 A1
20080262524 Bangera et al. Oct 2008 A1
20080262540 Bangera et al. Oct 2008 A1
20080275474 Martin et al. Nov 2008 A1
20080275475 Schwemberger et al. Nov 2008 A1
20080287737 Dejima Nov 2008 A1
20080287801 Magnin et al. Nov 2008 A1
20080287983 Smith et al. Nov 2008 A1
20080300461 Shaw et al. Dec 2008 A1
20080300547 Bakos Dec 2008 A1
20080300571 LePivert Dec 2008 A1
20080306493 Shibata et al. Dec 2008 A1
20080309758 Karasawa et al. Dec 2008 A1
20080312496 Zwolinski Dec 2008 A1
20080312499 Handa et al. Dec 2008 A1
20080312500 Asada et al. Dec 2008 A1
20080312506 Spivey et al. Dec 2008 A1
20080319436 Daniel et al. Dec 2008 A1
20080319439 Ootsubu Dec 2008 A1
20090005636 Pang et al. Jan 2009 A1
20090030278 Minakuchi Jan 2009 A1
20090054728 Trusty Feb 2009 A1
20090062788 Long Mar 2009 A1
20090062795 Vakharia et al. Mar 2009 A1
20090069634 Larkin Mar 2009 A1
20090076499 Azure Mar 2009 A1
20090078736 Van Lue Mar 2009 A1
20090082627 Karasawa et al. Mar 2009 A1
20090082776 Cresina Mar 2009 A1
20090082779 Nakao Mar 2009 A1
20090093690 Yoshizawa Apr 2009 A1
20090112059 Nobis Apr 2009 A1
20090112063 Bakos et al. Apr 2009 A1
20090125042 Mouw May 2009 A1
20090131751 Spivey et al. May 2009 A1
20090143639 Stark Jun 2009 A1
20090143649 Rossi Jun 2009 A1
20090143794 Conlon et al. Jun 2009 A1
20090143818 Faller et al. Jun 2009 A1
20090149710 Stefanchik et al. Jun 2009 A1
20090163770 Torrie et al. Jun 2009 A1
20090177031 Surti et al. Jul 2009 A1
20090177219 Conlon Jul 2009 A1
20090182325 Werneth et al. Jul 2009 A1
20090182332 Long et al. Jul 2009 A1
20090192344 Bakos et al. Jul 2009 A1
20090192534 Ortiz et al. Jul 2009 A1
20090198212 Timberlake et al. Aug 2009 A1
20090198231 Esser et al. Aug 2009 A1
20090198253 Omori Aug 2009 A1
20090209990 Yates et al. Aug 2009 A1
20090210000 Sullivan et al. Aug 2009 A1
20090216248 Uenohara et al. Aug 2009 A1
20090221873 McGrath Sep 2009 A1
20090227999 Willis et al. Sep 2009 A1
20090228001 Pacey Sep 2009 A1
20090248055 Spivey et al. Oct 2009 A1
20090259105 Miyano et al. Oct 2009 A1
20090269317 Davalos Oct 2009 A1
20090281559 Swain et al. Nov 2009 A1
20090287206 Jun Nov 2009 A1
20090287236 Bakos et al. Nov 2009 A1
20090292164 Yamatani Nov 2009 A1
20090292167 Kimoto Nov 2009 A1
20090306470 Karasawa et al. Dec 2009 A1
20090322864 Karasawa et al. Dec 2009 A1
20090326332 Carter Dec 2009 A1
20100010294 Conlon et al. Jan 2010 A1
20100010298 Bakos et al. Jan 2010 A1
20100010303 Bakos Jan 2010 A1
20100023032 Granja Filho Jan 2010 A1
20100030211 Davalos et al. Feb 2010 A1
20100036198 Tacchino et al. Feb 2010 A1
20100042045 Spivey Feb 2010 A1
20100048990 Bakos Feb 2010 A1
20100049223 Granja Filho Feb 2010 A1
20100056862 Bakos Mar 2010 A1
20100056864 Lee Mar 2010 A1
20100076451 Zwolinski et al. Mar 2010 A1
20100076460 Taylor et al. Mar 2010 A1
20100081875 Fowler et al. Apr 2010 A1
20100091128 Ogasawara et al. Apr 2010 A1
20100113872 Asada et al. May 2010 A1
20100121362 Clague et al. May 2010 A1
20100130817 Conlon May 2010 A1
20100152539 Ghabrial et al. Jun 2010 A1
20100152725 Pearson et al. Jun 2010 A1
20100152746 Ceniccola et al. Jun 2010 A1
20100191050 Zwolinski Jul 2010 A1
20100191267 Fox Jul 2010 A1
20100198248 Vakharia Aug 2010 A1
20100198254 Schaeffer Aug 2010 A1
20100210906 Wendlandt Aug 2010 A1
20100217367 Belson Aug 2010 A1
20100249700 Spivey Sep 2010 A1
20100256628 Pearson et al. Oct 2010 A1
20100261994 Davalos et al. Oct 2010 A1
20100268025 Belson Oct 2010 A1
20100286791 Goldsmith Nov 2010 A1
20100298642 Trusty et al. Nov 2010 A1
20100312056 Galperin et al. Dec 2010 A1
20100331622 Conlon Dec 2010 A2
20100331758 Davalos et al. Dec 2010 A1
20110077476 Rofougaran Mar 2011 A1
20110087224 Cadeddu et al. Apr 2011 A1
20110087266 Conlon et al. Apr 2011 A1
20110087267 Spivey et al. Apr 2011 A1
20110093009 Fox Apr 2011 A1
20110098694 Long Apr 2011 A1
20110098704 Long et al. Apr 2011 A1
20110106221 Neal, II et al. May 2011 A1
20110112434 Ghabrial et al. May 2011 A1
20110112527 Hamilton, Jr. et al. May 2011 A1
20110115891 Trusty May 2011 A1
20110152610 Trusty et al. Jun 2011 A1
20110152878 Trusty et al. Jun 2011 A1
20110152888 Ho et al. Jun 2011 A1
20110152923 Fox Jun 2011 A1
20110160514 Long et al. Jun 2011 A1
20110190764 Long et al. Aug 2011 A1
20110193948 Amling et al. Aug 2011 A1
20110224665 Crosby et al. Sep 2011 A1
20110245619 Holcomb Oct 2011 A1
20110282149 Vargas et al. Nov 2011 A1
20110284014 Cadeddu et al. Nov 2011 A1
20110285488 Scott et al. Nov 2011 A1
20120004502 Weitzner et al. Jan 2012 A1
20120029335 Sudam et al. Feb 2012 A1
20120078266 Tyson, Jr. Mar 2012 A1
20120088965 Stokes et al. Apr 2012 A1
20120089089 Swain et al. Apr 2012 A1
20120089093 Trusty Apr 2012 A1
20120101331 Gilad et al. Apr 2012 A1
20120101413 Beetel et al. Apr 2012 A1
20120109122 Arena et al. May 2012 A1
20120116155 Trusty May 2012 A1
20120116266 Houser et al. May 2012 A1
20120149981 Khait et al. Jun 2012 A1
20120150172 Ortiz et al. Jun 2012 A1
20120191075 Trusty Jul 2012 A1
20120191076 Voegele et al. Jul 2012 A1
20120239082 Shelton, IV et al. Sep 2012 A1
20120289857 Toth et al. Nov 2012 A1
20130030430 Stewart et al. Jan 2013 A1
20130090666 Hess et al. Apr 2013 A1
20130138091 Coe et al. May 2013 A1
20130158348 Nobis et al. Jun 2013 A1
20130172672 Iddan et al. Jul 2013 A1
20130231530 Lien et al. Sep 2013 A1
20130245356 Fernandez et al. Sep 2013 A1
20130331646 Pell et al. Dec 2013 A1
20130331649 Khait et al. Dec 2013 A1
20140031813 Tellio et al. Jan 2014 A1
20140039491 Bakos et al. Feb 2014 A1
20140039492 Long Feb 2014 A1
20140052216 Long et al. Feb 2014 A1
20140121678 Trusty et al. May 2014 A1
20140243597 Weisenburgh, II et al. Aug 2014 A1
20140343360 Shohat et al. Nov 2014 A1
20150032132 Harris et al. Jan 2015 A1
20150230858 Long et al. Aug 2015 A1
20150265335 Bakos et al. Sep 2015 A1
20150265342 Long et al. Sep 2015 A1
20150374444 Conlon et al. Dec 2015 A1
20160074056 Conlon Mar 2016 A1
20160100879 Long Apr 2016 A1
20160128759 Long et al. May 2016 A1
20160166311 Long et al. Jun 2016 A1
20160296280 Long Oct 2016 A1
Foreign Referenced Citations (191)
Number Date Country
666310 Feb 1996 AU
3008120 Sep 1980 DE
4323585 Jan 1995 DE
19713797 Oct 1997 DE
19757056 Aug 2008 DE
102006027873 Oct 2009 DE
0086338 Aug 1983 EP
0286415 Oct 1988 EP
0499491 Aug 1992 EP
0589454 Mar 1994 EP
0464479 Mar 1995 EP
0529675 Feb 1996 EP
0773003 May 1997 EP
0621009 Jul 1997 EP
0724863 Jul 1999 EP
0760629 Nov 1999 EP
0818974 Jul 2001 EP
1281356 Feb 2003 EP
0947166 May 2003 EP
0836832 Dec 2003 EP
1402837 Mar 2004 EP
0744918 Apr 2004 EP
0931515 Aug 2004 EP
0941128 Oct 2004 EP
1411843 Oct 2004 EP
1150614 Nov 2004 EP
1477104 Nov 2004 EP
1481642 Dec 2004 EP
1493391 Jan 2005 EP
0848598 Feb 2005 EP
1281360 Mar 2005 EP
1568330 Aug 2005 EP
1452143 Sep 2005 EP
1616527 Jan 2006 EP
1006888 Mar 2006 EP
1629764 Mar 2006 EP
1013229 Jun 2006 EP
1721561 Nov 2006 EP
1153578 Mar 2007 EP
1334696 Mar 2007 EP
1769766 Apr 2007 EP
1836971 Sep 2007 EP
1836980 Sep 2007 EP
1854421 Nov 2007 EP
1857061 Nov 2007 EP
1875876 Jan 2008 EP
1891881 Feb 2008 EP
1902663 Mar 2008 EP
1477106 Jun 2008 EP
1949844 Jul 2008 EP
1518499 Aug 2008 EP
1582138 Sep 2008 EP
1709918 Oct 2008 EP
1985226 Oct 2008 EP
1994904 Nov 2008 EP
1707130 Dec 2008 EP
0723462 Mar 2009 EP
1769749 Nov 2009 EP
2135545 Dec 2009 EP
1493397 Sep 2011 EP
2659847 Nov 2013 EP
2731610 Sep 1996 FR
330629 Jun 1930 GB
2335860 Oct 1999 GB
2403909 Jan 2005 GB
2421190 Jun 2006 GB
2443261 Apr 2008 GB
56-46674 Apr 1981 JP
S 63309252 Dec 1988 JP
H 04-38960 Feb 1992 JP
H 06-269460 Sep 1994 JP
H 08-29699 Feb 1996 JP
H 9-75365 Mar 1997 JP
H 10-24049 Jan 1998 JP
3007713 Feb 2000 JP
2000-107197 Apr 2000 JP
2000245683 Sep 2000 JP
2001-526072 Dec 2001 JP
2002-369791 Dec 2002 JP
2003-088494 Mar 2003 JP
2003-235852 Aug 2003 JP
2004-033525 Feb 2004 JP
2004-065745 Mar 2004 JP
2005-121947 May 2005 JP
2005-261514 Sep 2005 JP
2005-296063 Oct 2005 JP
2006-517843 Aug 2006 JP
2006297005 Nov 2006 JP
2006-343510 Dec 2006 JP
2007-020806 Feb 2007 JP
2007-125264 May 2007 JP
2007-516792 Jun 2007 JP
2010503496 Feb 2010 JP
2012-515018 Jul 2012 JP
1021295 Feb 2004 NL
194230 May 1967 SU
980703 Dec 1982 SU
WO 8401707 May 1984 WO
WO 8607543 Dec 1986 WO
WO 9213494 Aug 1992 WO
WO 9310850 Jun 1993 WO
WO 9320760 Oct 1993 WO
WO 9320765 Oct 1993 WO
WO 9422383 Oct 1994 WO
WO 9509666 Apr 1995 WO
WO 9622056 Jul 1996 WO
WO 9627331 Sep 1996 WO
WO 9639946 Dec 1996 WO
WO 9712557 Apr 1997 WO
WO 9801080 Jan 1998 WO
WO 9900060 Jan 1999 WO
WO 9909919 Mar 1999 WO
WO 9917661 Apr 1999 WO
WO 9930622 Jun 1999 WO
WO 0022996 Apr 2000 WO
WO 0035358 Jun 2000 WO
WO 0068665 Nov 2000 WO
WO 0110319 Feb 2001 WO
WO 0126708 Apr 2001 WO
WO 0141627 Jun 2001 WO
WO 0158360 Aug 2001 WO
WO 0211621 Feb 2002 WO
WO 0234122 May 2002 WO
WO 02094082 Nov 2002 WO
WO 03045260 Jun 2003 WO
WO 03047684 Jun 2003 WO
WO 03059412 Jul 2003 WO
WO 03078721 Sep 2003 WO
WO 03081761 Oct 2003 WO
WO 03082129 Oct 2003 WO
WO 2004006789 Jan 2004 WO
WO 2004028613 Apr 2004 WO
WO 2004037123 May 2004 WO
WO 2004037149 May 2004 WO
WO 2004052221 Jun 2004 WO
WO 2004086984 Oct 2004 WO
WO 2005009211 Feb 2005 WO
WO 2005018467 Mar 2005 WO
WO 2005037088 Apr 2005 WO
WO 2005048827 Jun 2005 WO
WO 2005065284 Jul 2005 WO
WO 2005097019 Oct 2005 WO
WO 2005097234 Oct 2005 WO
WO 2005112810 Dec 2005 WO
WO 2005120363 Dec 2005 WO
WO 2005122866 Dec 2005 WO
WO 2006007399 Jan 2006 WO
WO 2006012630 Feb 2006 WO
WO 2006040109 Apr 2006 WO
WO 2006041881 Apr 2006 WO
WO 2006060405 Jun 2006 WO
WO 2006110733 Oct 2006 WO
WO 2006113216 Oct 2006 WO
WO 2007013059 Feb 2007 WO
WO 2007014063 Feb 2007 WO
WO 2007035537 Mar 2007 WO
WO 2007048085 Apr 2007 WO
WO 2007063550 Jun 2007 WO
WO 2007100067 Sep 2007 WO
WO 2007109171 Sep 2007 WO
WO 2007135577 Nov 2007 WO
WO 2007143200 Dec 2007 WO
WO 2007144004 Dec 2007 WO
WO 2008005433 Jan 2008 WO
WO 2008033356 Mar 2008 WO
WO 2008034103 Mar 2008 WO
WO 2008041225 Apr 2008 WO
WO 2008076337 Jun 2008 WO
WO 2008076800 Jun 2008 WO
WO 2008079440 Jul 2008 WO
WO 2008080062 Jul 2008 WO
WO 2008101075 Aug 2008 WO
WO 2008101086 Aug 2008 WO
WO 2008102154 Aug 2008 WO
WO 2008108863 Sep 2008 WO
WO 2008151237 Dec 2008 WO
WO 2009021030 Feb 2009 WO
WO 2009027065 Mar 2009 WO
WO 2009029065 Mar 2009 WO
WO 2009032623 Mar 2009 WO
WO 2009036457 Mar 2009 WO
WO 2009121017 Oct 2009 WO
WO 2009132190 Oct 2009 WO
WO 2010027688 Mar 2010 WO
WO 2010056716 May 2010 WO
WO 2010080974 Jul 2010 WO
WO 2010088481 Aug 2010 WO
WO 2012031204 Mar 2012 WO
WO 2012068505 May 2012 WO
WO 2012071526 May 2012 WO
WO 2013044378 Apr 2013 WO
Non-Patent Literature Citations (66)
Entry
Michael S. Kavic, M.D., “Natural Orifice Translumenal Endoscopic Surgery: “NOTES””, JSLS, vol. 10, pp. 133-134 (2006).
Ethicon, Inc., “Wound Closure Manual: Chapter 3 (The Surgical Needle),” 15 pages, (1994).
Guido M. Sclabas, M.D., et al., “Endoluminal Methods for Gastrotomy Closure in Natural Orifice TransEnteric Surgery (NOTES),” Surgical Innovation, vol. 13, No. 1, pp. 23-30, Mar. 2006.
Fritscher-Ravens, et al., “Transgastric Gastropexy and Hiatal Hernia Repair for GERD Under EUS Control: a Porcine Model,” Gastrointestinal Endoscopy, vol. 59, No. 1, pp. 89-95, 2004.
Ogando, “Prototype Tools That Go With The Flow,” Design News, 2 pages, Jul. 17, 2006.
Edd, et al., “In Vivo Results of a New Focal Tissue Ablation Technique: Irreversible Electroporation,” IEEE Trans Biomed Eng, vol. 53, pp. 1409-1415, 2006.
Kennedy, et al., “High-Burst-Strength, Feedback-Controlled Bipolar Vessel Sealing,” Surgical Endoscopy, vol. 12, pp. 876-878 (1998).
Collins et al., “Local Gene Therapy of Solid Tumors with GM-CSF and B7-1 Eradicates Both Treated and Distal Tumors,” Cancer Gene Therapy, vol. 13, pp. 1061-1071 (2006).
K. Sumiyama et al., “Transesophageal Mediastinoscopy by Submucosal Endoscopy With Mucosal Flap Safety Value Technique,” Gastrointest Endosc., Apr. 2007, vol. 65(4), pp. 679-683 (Abstract).
K. Sumiyama et al., “Submucosal Endoscopy with Mucosal Flap Safety Valve,” Gastrointest Endosc. Apr. 2007, vol. 65(4) pp. 694-695 (Abstract).
K. Sumiyama et al., “Transgastric Cholecystectomy: Transgastric Accessibility to the Gallbladder Improved with the SEMF Method and a Novel Multibending Therapeutic Endoscope,” Gastrointest Endosc., Jun. 2007, vol. 65(7), pp. 1028-1034 (Abstract).
K. Sumiyama et al., “Endoscopic Caps,” Tech. Gastrointest. Endosc., vol. 8, pp. 28-32, 2006.
“Z-Offset Technique Used in the Introduction of Trocar During Laparoscopic Surgery,” M.S. Hershey NOTES Presentation to EES NOTES Development Team, Sep. 27, 2007.
F.N. Denans, Nouveau Procede Pour La Guerison Des Plaies Des Intestines. Extrait Des Seances De La Societe Royale De Medecine De Marseille, Pendant Le Mois De Decembre 1825, et le Premier Tremestre De 1826, Séance Du 24 Fevrier 1826. Recueil De La Societe Royale De Medecin De Marseille. Marseille: Impr. D'Achard, 1826; 1:127-31. (with English translation).
I. Fraser, “An Historical Perspective on Mechanical Aids in Intestinal Anastamosis,” Surg. Gynecol. Obstet. (Oct. 1982), vol. 155, pp. 566-74.
M.E. Ryan et al., “Endoscopic Intervention for Biliary Leaks After Laparoscopic Cholecystectomy: A Multicenter Review,” Gastrointest. Endosc., vol. 47(3), 1998, pp. 261-266.
C. Cope, “Creation of Compression Gastroenterostomy by Means of the Oral, Percutaneous, or Surgical Introduction of Magnets: Feasibility Study in Swine,” J. Vasc Interv Radiol, (1995), vol. 6(4), pp. 539-545.
J.W. Hazey et al., “Natural Orifice Transgastric Endoscopic Peritoneoscopy in Humans: Initial Clinical Trial,” Surg Endosc, (Jan. 2008), vol. 22(1), pp. 16-20.
N. Chopita et al., “Endoscopic Gastroenteric Anastamosis Using Magnets,” Endoscopy, (2005), vol. 37(4), pp. 313-317.
C. Cope et al., “Long Term Patency of Experimental Magnetic Compression Gastroenteric Anastomoses Achieved with Covered Stents,” Gastrointest Endosc, (2001), vol. 53, pp. 780-784.
H. Okajima et al., “Magnet Compression Anastamosis for Bile Duct Stenosis After Duct to Duct Biliary Reconstruction in Living Donor Liver Transplantation,” Liver Transplantation (2005), pp. 473-475.
A. Fritscher-Ravens et al., “Transluminal Endosurgery: Single Lumen Access Anastamotic Device for Flexible Endoscopy,” Gastrointestinal Endosc, (2003), vol. 58(4), pp. 585-591.
G.A. Hallenbeck, M.D. et al., “An Instrument for Colorectal Anastomosis Without Sutrues,” Dis Col Rectum, (1963), vol. 5, pp. 98-101.
T. Hardy, Jr., M.D. et al., “A Biofragmentable Ring for Sutureless Bowel Anastomosis. An Experimental Study,” Dis Col Rectum, (1985), vol. 28, pp. 484-490.
P. O'Neill, M.D. et al., “Nonsuture Intestinal Anastomosis,” Am J. Surg, (1962), vol. 104, pp. 761-767.
C.P. Swain, M.D. et al., “Anastomosis at Flexible Endoscopy: An Experimental Study of Compression Button Gastrojejunostomy,” Gastrointest Endosc, (1991), vol. 37, pp. 628-632.
J.B. Murphy, M.D., “Cholecysto-Intestinal, Gastro-Intestinal, Entero-Intestinal Anastomosis, and Approximation Without Sutures (original research),” Med Rec, (Dec. 10, 1892), vol. 42(24), pp. 665-676.
USGI® EndoSurgical Operating System—g-Prox® Tissue Grasper/Approximation Device; [online] URL: http://www.usgimedical.com/eos/components-gprox.htm—accessed May 30, 2008 (2 pages).
Printout of web page—http://www.vacumed.com/zcom/product/Product.do?compid=27&prodid=852, #51XX Low-Cost Permanent Tubes 2MM ID, Smooth Interior Walls, VacuMed, Ventura, California, Accessed Jul. 24, 2007.
Endoscopic Retrograde Cholangiopancreatogram (ERCP); [online] URL: http://www.webmd.com/digestive-disorders/endoscopic-retrograde-cholangiopancreatogram-ercp.htm; last updated: Apr. 30, 2007; accessed: Feb. 21, 2008 (6 pages).
ERCP; Jackson Siegelbaum Gastroenterology; [online] URL: http://www.gicare.com/pated/epdgs20.htm; accessed Feb. 21, 2008 (3 pages).
D.G. Fong et al., “Transcolonic Ventral Wall Hernia Mesh Fixation in a Porcine Model,” Endoscopy 2007; 39: 865-869.
B. Rubinsky, Ph.D., “Irreversible Electroporation in Medicine,” Technology in Cancer Research and Treatment, vol. 6, No. 4, Aug. (2007), pp. 255-259.
D.B. Nelson, MD et al., “Endoscopic Hemostatic Devices,” Gastrointestinal Endoscopy, vol. 54, No. 6, 2001, pp. 833-840.
CRE™ Pulmonary Balloon Dilator; [online] URL: http://www.bostonscientific.com/Device.bsci?page=HCP_Overview&navRe1Id=1000.1003&method=D . . . , accessed Jul. 18, 2008 (4 pages).
J.D. Paulson, M.D., et al., “Development of Flexible Culdoscopy,” The Journal of the American Association of Gynecologic Laparoscopists, Nov. 1999, vol. 6, No. 4, pp. 487-490.
H. Seifert, et al., “Retroperitoneal Endoscopic Debridement for Infected Peripancreatic Necrosis,” The Lancet, Research Letters, vol. 356, Aug. 19, 2000, pp. 653-655.
K.E. Mönkemüller, M.D., et al., “Transmural Drainage of Pancreatic Fluid Collections Without Electrocautery Using the Seldinger Technique,” Gastrointestinal Endoscopy, vol. 48, No. 2, 1998, pp. 195-200, (Received Oct. 3, 1997; Accepted Mar. 31, 1998).
D. Wilhelm et al., “An Innovative, Safe and Sterile Sigmoid Access (ISSA) for NOTES,” Endoscopy 2007, vol. 39, pp. 401-406.
Nakazawa et al., “Radiofrequency Ablation of Hepatocellular Carcinoma: Correlation Between Local Tumor Progression After Ablation and Ablative Margin,” AJR, 188, pp. 480-488 (Feb. 2007).
Miklav{hacek over (c)}i{hacek over (c)} et al., “A validated model of in vivo electric field distribution in tissues for electrochemotherapy and for DNA electrotransfer for gene therapy,” Biochimica et Biophysica Acta, 1523, pp. 73-83 (2000).
Evans, “Ablative and cathether-delivered therapies for colorectal liver metastases (CRLM),” EJSO, 33, pp. S64-S75 (2007).
Wong et al., “Combined Percutaneous Radiofrequency Ablation and Ethanol Injection for Hepatocellular Carcinoma in High-Risk Locations,” AJR, 190, pp. W187-W195 (2008).
Heller et al., “Electrically mediated plasmid DNA delivery to hepatocellular carcinomas in vivo,” Gene Therapy, 7, pp. 826-829 (2000).
Widera et al., “Increased DNA Vaccine Delivery and Immunogenicity by Electroporation In Vivo,” The Journal of Immunology, 164, pp. 4635-4640 (2000).
Weaver et al., “Theory of electroporation: A review,” Bioelectrochemistry and Bioenergetics, 41, pp. 135-160 (1996).
Mulier et al., “Radiofrequency Ablation Versus Resection for Resectable Colorectal Liver Metastases: Time for a Randomized Trial?” Annals of Surgical Oncology, 15(1), pp. 144-157 (2008).
Link et al., “Regional Chemotherapy of Nonresectable Colorectal Liver Metastases with Mitoxanthrone, 5-Fluorouracil, Folinic Acid, and Mitomycin C May Prolong Survival,” Cancer, 92, pp. 2746-2753 (2001).
Guyton et al., “Membrane Potentials and Action Potentials,” W.B. Sanders, ed. Textbook of Medical Physiology, p. 56 (2000).
Guyton et al., “Contraction of Skeletal Muscle,” Textbook of Medical Physiology, pp. 82-84 (2000).
“Ethicon Endo-Surgery Novel Investigational Notes and SSL Devices Featured in 15 Presentations at Sages,” Apr. 22, 2009 Press Release; URL http://www.jnj.com/connect/news/all/20090422_152000; accessed Aug. 28, 2009 (3 pages).
“Ethicon Endo-Surgery Studies Presented At DDW Demonstrate Potential of Pure NOTES Surgery With Company's Toolbox,” Jun. 3, 2009 Press Release; URL http://www.jnj.com/connect/news/product/20090603_120000; accessed Aug. 28, 2009 (3 pages).
Castellvi et al., “Hybrid Transvaginal NOTES Sleeve Gastrectomy in a Porcine Model Using a Magnetically Anchored Camera and Novel Instrumentation,” Abstract submitted along with Poster at SAGES Annual Meeting in Phoenix, AZ, Apr. 22, 2009 (1 page).
Castellvi et al., “Hybrid Transvaginal Notes Sleeve Gastrectomy in a Porcine Model Using a Magnetically Anchored Camera and Novel Instrumentation,” Poster submitted along with Abstract at SAGES Annual Meeting in Phoenix, AZ, Apr. 22, 2009 (1 page).
OCTO Port Modular Laparoscopy System for Single Incision Access, Jan. 4, 2010; URL http://www.medgadget.com/archives/2010/01/octo_port_modular_laparo . . . ; accessed Jan. 5, 2010 (4 pages).
Hakko Retractors, obtained Aug. 25, 2009 (5 pages).
Zadno et al., “Linear Superelasticity in Cold-Worked NI-TI,” Engineering Aspects of Shape Memory Alloys, pp. 414-419 (1990).
How Stuff Works “How Smart Structures Will Work,” http://science.howstuffworks.com/engineering/structural/smart-structure1.htm; accessed online Nov. 1, 2011 (3 pages).
Instant Armor: Science Videos—Science News—ScienCentral; http://www.sciencentral.com/articles./view.php3?article_id=218392121; accessed online Nov. 1, 2011 (2 pages).
Stanway, Smart Fluids: Current and Future Developments. Material Science and Technology, 20, pp. 931-939, 2004; accessed online Nov. 1, 2011 at http://www.dynamics.group.shef.ac.uk/smart/smart.html (7 pages).
Jolly et al., Properties and Applications of Commercial Magnetorheological Fluids. SPIE 5th Annual Int. Symposium on Smart Structures and Materials, 1998 (18 pages).
Rutala et al. “Guideline for Disinfection and Sterilization in Healthcare Facilities, 2008” (available at http://www.cdc.gov/hicpac/Disinfection_Sterilization/13_11sterilizingPractices.html).
Bewlay et al., “Spinning” in ASM Handbook, vol. 14B, Metalworking: Sheet Forming (2006).
Schoenbach et al. “Bacterial Decontamination of Liquids with Pulsed Electric Fields” IEEE Transactions on Dielectrics and Electrical Insulation. vol. 7 No. 5. Oct. 2000, pp. 637-645.
Davalos, et al., “Tissue Ablation with Irreversible Electroporation,” Annals of Biomedical Engineering, 33.2 (2005): 223-231.
Maxim Integrated Application Note 3977: Class D Amplifiers: Fundamentals of Operation and Recent Developments, Jan. 31, 2007.
Related Publications (1)
Number Date Country
20150230858 A1 Aug 2015 US
Divisions (1)
Number Date Country
Parent 12641837 Dec 2009 US
Child 14695824 US