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Multielectrode electrosurgical instrument

A surgical instrument, electrosurgery technology, applied in the direction of heating surgical instruments, parts of surgical instruments, medical science, etc.

Inactive Publication Date: 2007-10-17
TEAM MEDICAL LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Notably lacking in the prior art is a means of preventing short circuits from tissue fragments or tissue breakdown products accumulating on the knife when the electrodes are placed close together to ensure reliable contact between the electrodes and the tissue

Method used

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  • Multielectrode electrosurgical instrument
  • Multielectrode electrosurgical instrument
  • Multielectrode electrosurgical instrument

Examples

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Embodiment Construction

[0041] The present invention is directed to a multi-electrode electrosurgical instrument and related systems and methods that reduce or prevent eschar accumulation on or between electrodes by means other than increasing the distance between the electrodes, changing the shape of the electrodes, or changing the composition of the electrodes. between methods. Such methods for reducing or preventing eschar accumulation on or between electrodes may require or be reinforced by electrode spacing, geometry or composition. The present invention applies to devices in which at least one pair of electrically isolated electrodes are mechanically connected such that their spacing is defined within a predetermined range (the range may be a fixed distance) and are electrically connected to the EUS such that they are in contact with, for example, tissue or conductive The RF current flows between the electrodes in a liquid or vapor conducting medium. These electrodes are bipolar electrodes and...

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PUM

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Abstract

An improved electrosurgical instrument and method is disclosed for simplifying making incisions and other treatments using electrosurgery. The electrosurgical instrument comprises a body having more than two electrodes with at least two electrodes having alternating current power supplied to them such that they comprise a bipolar alternating current configuration and employ a means other than electrode spacing, composition, or geometry for reducing or preventing accumulation of eschar that would otherwise form a short circuit current path and interfere with obtaining a predetermined surgical effect.

Description

[0001] This application claims priority under 35 U.S.C §119 to previously filed U.S. Provisional Patent Application No. 60 / 589,508, filed July 20, 2004, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to surgical methods and apparatus for applying electrosurgical power to targeted locations on tissue to achieve a predetermined surgical effect, and more particularly to an improved electrosurgical instrument and method to achieve this effect without the use of A return electrode pad separate from the device that produces the intended surgical effect. Background technique [0003] The potential applications and known advantages of employing electrical energy in surgical procedures continue to increase. In particular, for example, electrosurgery is now widely employed, offering distinct local surgical advantages in open, laparoscopic, and arthroscopic applications over surgical approaches using mechanical cutters ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/14
CPCA61B18/1402A61B18/1206A61B2018/1246A61B2018/1226A61B2018/1412
Inventor 沃伦·P·海姆
Owner TEAM MEDICAL LLC