Patent Application
20220386884
Guidewires, catheters and other percutaneous devices are used to navigate through tortuous curved vascular anatomy (e.g., arteries, veins, lymphatics, etc.). As these devices are advanced, there are many contact points between the device and the vasculature providing frictional forces that oppose the advancing forces on the device. The frictional forces are larger if the anatomy is more tortuous, curved, diseased (e.g., calcification, atherosclerosis, varicose, etc.), smaller in caliber, etc. To overcome the frictional contact forces with the vessel wall, the clinician will shake the wire to generate longitudinal waves or vibrations that disrupt the contact points of friction. This can allow slight repositioning of the wire and additional attempts at re-advancement. Some clinicians will also advance the guidewire while shaking which requires technical coordination and experience. This shaking or flicking of the device causes significant reduction in friction thereby, enabling easier advancement of the device.
The shaking process is subjective and requires energy which can be draining after long procedures. Excessive shaking or overly forceful shaking can cause unintended consequences such as perforation of vasculature. Thus, tempering the degree and amount of shaking is a skill that must be learned through thorough training, over the course of time, and after multiple procedures. Furthermore, as each patient's vasculature is different, and the frictional forces involved can vary due to the diseases, tortuous geometry and uniqueness of each patient vasculature, the degree of shaking required when advancement of the guidewire is stopped may be different at each instance, further complicating procedures involving these devices.
Therefore, there is a need for a tool that can accomplish the same in a more reproducible and systematic approach and that does not require experience especially for the less experienced operators.
In an exemplary embodiment of a motion generating device of the present disclosure, the motion generating device comprises a mating surface and at least one motion source.
In an alternate embodiment of a motion generating device of the present disclosure, the motion generating device comprises a housing, at least one motion source disposed within the housing, a power source powering the at least one motion source, and a mating surface on the housing.
In an alternate embodiment, the motion generating device comprises at least one motion source, a housing comprising a mating surface, wherein the mating surface is on the housing and is part of the housing. In an alternate embodiment, the motion generating device comprises at least one motion source, a housing and a mating surface wherein the mating surface is a separate element disposed on the housing.
In an exemplary embodiment of a motion generating device of the present disclosure, the motion generating device comprises at least one motion source, a mating surface, and a housing having a clam-shell shape, wherein the housing comprises a housing top portion comprising a top portion of a mating surface and a housing bottom portion comprising a bottom portion of a mating surface, wherein the top portions of the housing and the mating surface and the bottom portions of the housing and the mating surface are configured to fold over an interventional device in a clam shell fashion.
In an alternate embodiment, the power source may be disposed within the housing. In alternate embodiments, the at least one motion source or the power source is disposed external of the housing. The power source and the at least one motion source are operably connected such that the at least one motion source is supplied energy from the power source.
The interventional device may comprise a guidewire, catheter, deployment handle, or any other percutaneous device designed to traverse the vasculature of a patient.
The at least one motion source may comprise a voice coil actuator, a small electric motor with an unbalanced mass on the driveshaft, or a combination of both to generate multimodal vibrational and rotational movement, both independently of one another and simultaneously.
The motion generating device may further comprise at least one switch operable to toggle the power source and/or the at least one motion source on and off. The motion generating device may also comprise at least one switch operable to vary the characteristics of the vibrations and/or rotations/torque generated such as the amplitude, frequency and/or rotational speed produced.
In an alternate embodiment, the motion generating device may be one piece with the interventional device. That is, the motion generating device may be pre-formed or otherwise manufactured as a single piece with the interventional device.
In an exemplary embodiment of a method for using a motion generating device of the present disclosure, the method comprises the steps of positioning the motion generating device on an interventional device and activating the motion generating device.
In an alternate embodiment of a method for using a motion generating device of the present disclosure, the method comprises the steps of positioning the motion generating device on an interventional device, attaching the motion generating device to the interventional device and activating the motion generating device.
In a further alternate embodiment, the motion generating device is preferably positioned on the proximal end of the interventional device, the proximal end being the end furthest from the patient.
Activating the motion generating device may further comprise at least one or more of the steps of connecting the power source to the motion generating device, activating at least one switch operable to toggle the power source on, activating at least one switch operable to turn the at least one motion source on.
The disclosed embodiments and other features, advantages, and disclosures contained herein, and the matter of attaining them, will become apparent and the present disclosure will be better understood by reference to the following description of various exemplary embodiments of the present disclosure taken in conjunction with the accompanying drawings, wherein:
An overview of the features, functions and/or configurations of the components depicted in the various figures will now be presented. It should be appreciated that not all of the features of the components of the figures are necessarily described. Some of these non-discussed features, such as various couplers, etc., as well as discussed features are inherent from the figures themselves. Other non-discussed features may be inherent m component geometry and/or configuration.
For the purposes of promoting an understanding of the principles of the present disclosure, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of this disclosure is thereby intended.
It is within the scope of the invention to solve the problems present in the prior art, such as overcoming friction caused by advancing a lengthy device through a curved lumen, in any technical field. For example, the device may be used in colonoscopy, bronchoscopy, or any other endoscopic or minimally invasive procedure. The device could also be adapted and scaled for use in nonmedical settings such as plumbing or other industrial probe advancement applications. The embodiments within are illustrative of the invention and intended to be non-limiting. Similarly, the cardiovascular examples are given only for context.
An exemplary device for a motion generating device 100 of the present disclosure is shown in
As seen in
The vibrations and/or rotations may travel along the length of the interventional device 104. For example, if the motion generating device 100 is attached to the proximal end of the interventional device 104, the vibrations and/or rotations may travel from the proximal end of the interventional device 104 to the distal end. In this manner, the motion generating device 100 replaces the physical movement of the interventional device operator. Then, the operator may focus his or her energy on advancing the interventional device 104 as the motions are being generated.
The mating surface 102 is configured to mate with the interventional device 104. The mating surface 102 may be a part of the housing 110 and on the exterior of the housing 110, or may be a separate element and on the housing 110. The mating surface 102 may comprise a deformable material such that when the housing 110 is placed over the interventional device 104 the material will take the general shape of the interventional device 104. In this embodiment, the deformable material will be softer than the interventional device 104. In another embodiment, the mating surface 102 may comprise a frictional material that prevents movement between the mating surface 102 and the interventional device 104. The mating surface 102 may also be pre-formed to take the general shape of the interventional device 104.
In another embodiment, the motion generating device 100 has a foldable “clam-shell” shaped housing 110 that aids in attachment to the interventional device 104. A side view of this embodiment is illustrated in
The hinge 118 allows the housing 110 to be in a first position and a second position. In the first position as shown in
As shown in
It is within the scope of this disclosure that the mating surface 102 may have one or more of the characteristics described in the preceding embodiments. For example, the mating surface 102 may have a top portion and a bottom portion 126, 128, and may also be comprised of a deformable material. As another example, the mating surface 102 may be pre-formed to fit an interventional device 104 and may also comprise a frictional material. It is also within the scope of this disclosure that the interventional device 104 may be secured in the housing 110 by being enclosed by a mating surface top portion 126 and mating surface bottom portion 128. It is also within the scope of this disclosure that the motion generating device 100 may be coupled to the interventional device 104 via compression collet, or similar means.
The motion generating device may further comprise a power source 108. The power source 108 may be located inside the housing, as in
As shown in
The motion generating device 100 thus functions to provide vibrations and/or rotational motion and advance the interventional device 104 as the vibrations/rotational motion are transmitted along the interventional device 104. The motion generating device 100 may thus facilitate multimodal vibrational and rotational movement, both independent of one another and simultaneously.
The motion generating device 100 is also capable of generating different wavelengths that are transmitted along the length of the interventional device 104. For example, the motion generating device may comprise switches, dials, toggles or similar devices which can turn on and off the power source 108 and motion source 106. The switches may also function to alter the wavelength characteristics of the vibrations generated. In one embodiment, wavelength is altered by modifying the speed of the motor 112 via a multiposition switch. In another exemplary embodiment, the energy of the power source 108 is varied via a multiposition switch.
An exemplary method of using the interventional device comprises the steps of attaching the motion generating device to the interventional device, the motion generating device being configured to generate multimodal vibrational and rotational movement, both independent of one another and simultaneously, and activating the motion generating device to impart the multimodal vibrational and rotational movement to the interventional device, both independent of one another and simultaneously.
In an alternate embodiment, the method further comprises the step of attaching the motion generating device to the proximal end of the interventional device.
An alternate embodiment of a method of using the interventional device comprises the steps of inserting the interventional device into a patient, attaching the motion generating device to the interventional device, activating the motion generating device.
In an alternate embodiment, a method of using the interventional device further comprises the steps of advancing the interventional device while the motion generating device is activated.
In an alternate embodiment, a method of using the interventional device further comprises the steps of adjusting the at least one wavelength characteristic of the generated vibrations.
In an alternate embodiment, a method of using the interventional device further comprises the steps of advancing the interventional device while adjusting at least one wavelength characteristic of the generated vibrations.
In an alternate embodiment a method of using the interventional device further comprises the steps of adjusting at least one wavelength characteristic of the generated vibrations a first time after advancing the interventional device, and adjusting at least one wavelength characteristic of the generated vibrations a second time.
While various embodiments of devices for a motion generating device and methods for using a motion generating device to advance an interventional device and the same have been described in considerable detail herein, the embodiments are merely offered as non-limiting examples of the disclosure described herein. It will therefore be understood that various changes and modifications may be made, and equivalents may be substituted for elements thereof, without departing from the scope of the present disclosure. The present disclosure is not intended to be exhaustive or limiting with respect to the content thereof.
Further, in describing representative embodiments, the present disclosure may have presented a method and/or a process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth therein, the method or process should not be limited to the particular sequence of steps described, as other sequences of steps may be possible. Therefore, the particular order of the steps disclosed herein should not be construed as limitations of the present disclosure. In addition, disclosure directed to a method and/or process should not be limited to the performance of their steps in the order written. Such sequences may be varied and still remain within the scope of the present disclosure.
The present application is related to, and claims the priority benefit of, U.S. Provisional Patent Application Ser. No. 63/208,446, filed Jun. 8, 2021. The entire contents of the aforementioned application is hereby incorporated by reference in its entirety into this disclosure.
| Number | Date | Country | |
|---|---|---|---|
| 63208446 | Jun 2021 | US |
