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Energy delivery return path devices and methods

A technology of energy return and energy delivery, which is applied in medical science, surgery, parts of surgical instruments, etc., can solve problems affecting position stability and quality, reducing the effectiveness of such delivery, and affecting the path of energy delivery, etc., to achieve The effect of promoting the formation of transmural damage

Pending Publication Date: 2020-09-04
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These sources of motion affect the positional stability and quality of electrodes in contact with, for example, the heart wall, and can affect the path of energy delivery, which can compromise the effectiveness of the treatment
During energy delivery for ablating target tissue, this motion can reduce the effectiveness of such delivery during periods when the electrodes are moved away from the target tissue

Method used

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  • Energy delivery return path devices and methods
  • Energy delivery return path devices and methods
  • Energy delivery return path devices and methods

Examples

Experimental program
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Embodiment

[0114] In one embodiment, a system for ablating tissue includes: at least one energy delivery electrode having a first surface area; an energy generator electrically connected to the at least one energy delivery electrode. communicating with, and configured to transmit current to the at least one energy delivery electrode; and at least one energy return electrode, the at least one energy return electrode having a second surface area greater than the first surface area, the at least one energy return electrode being in contact with the The at least one energy delivery electrode is in electrical communication such that electrical current delivered from the at least one energy delivery electrode to the region of tissue flows to the at least one energy return electrode.

[0115] In one aspect of this embodiment, the electrical current is pulsed field ablation energy.

[0116] In one aspect of this embodiment, the system further includes an energy delivery device on which is at lea...

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Abstract

A device, system, and method for ablating tissue with pulsed field ablation energy while minimizing stimulation of skeletal muscle and nerves, as well as minimizing damage to non-targeted tissue. Someembodiments provide a device, system, and method for delivering pulsed field ablation energy to tissue from at least one energy delivery electrode on an energy delivery device to at least one energyreturn electrode, which may be located on the energy delivery device and / or on a sheath or secondary device. The at least one energy delivery electrode has a surface area for the application of energythat is smaller than the surface area for the receipt or return of energy of the at least one energy return electrode.

Description

technical field [0001] The present disclosure relates to devices, systems and methods for ablating tissue using pulsed field ablation energy while minimizing irritation to skeletal muscles and nerves and minimizing damage to non-target tissue. Specifically, some embodiments provide for delivering pulsed field ablation energy from at least one energy delivery electrode on an energy delivery device to at least one energy return that may be positioned on the energy delivery device and / or a sheath or secondary device. Devices, systems and methods for delivering electrodes to tissue. The at least one energy delivery electrode has a surface area for energy application that is smaller than the surface area of ​​the at least one energy return electrode for energy reception or energy return. Background technique [0002] Tissue ablation is a medical procedure commonly used to treat diseases such as cardiac arrhythmias, including atrial fibrillation. To treat cardiac arrhythmias, ab...

Claims

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Application Information

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IPC IPC(8): A61B18/14A61B18/16
CPCA61B18/16A61B2018/00148A61B2018/00214A61B2018/00273A61B2018/00351A61B2018/00357A61B2018/00613A61B2018/00839A61B2018/00875A61B2018/162A61B2018/165A61B18/1492A61B2018/00577A61B2018/1425A61B18/1206A61B2018/00702
Inventor M·T·斯图尔特B·T·霍华德
Owner MEDTRONIC INC