Self-guiding electrode for tissue resection

Details Self-guiding electrode for tissue resection Self-guiding electrode for tissue resection

1996-01-16

1998-08-04

Cohen, Lee S.

Surgery

Instruments

Electrical application

606 46, A61B 1739

Patent

active

057886946

ABSTRACT:
An electrode having at least one self-guiding surface (a tissue skid) for use in electrical tissue resection. Self-guiding forces are applied substantially perpendicular to the longitudinal axis of the electrode, and/or rotationally about the longitudinal axis. Forces sufficient to compensate in part for errors in cutting tip placement are produced by tissue pressure acting on one or more convex tissue skids. Optional tissue cutting tips for the electrode are configured to enhance heat transfer from the cutting tip by external fluid flow around the cutting tip, to improve heat transfer within the cutting tip through use of heat transfer fluids and/or heat-conducting solids, and/or to cool the cutting tip by expansion of a compressed cooling fluid through an orifice within a hollow portion of the cutting tip.

REFERENCES:
patent: 4116198 (1978-09-01), Roos
patent: 5196011 (1993-03-01), Korth et al.
C.J.G. Sutton, et al., "Endometrial Resection", `Endometrial Ablation`, Churchill Livingstone, 1993, pp. 91-131.

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