Patent Number: 6,168,593

Title: Electrode for electrosurgical coagulation of tissue

Abstract: An electrosurgical electrode, comprising a metal conductor having a first external surface area and having a convex body, a flat face on the body, and a connector for attaching the body to an electrosurgical probe handle, and an insulating layer covering the first external surface of the metal conductor except at a selected second area of one of the convex body and the flat face, the second area being positioned on the metal conductor so that a line from a geometric center of the second area and substantially perpendicular to the second area intersects at an angle an axis formed by a probe handle and the metal conductor upon attachment of a probe handle to the connector, wherein the second area does not intersect the axis along the probe handle. Also disclosed are methods of manufacture and similar off-axis electrodes useful in endoscopic electrosurgery.

Inventors: Sharkey; Hugh R. (Woodside, CA), Fanton; Gary S. (Portola Valley, CA), Reyes; Ramiro L. (Union City, CA)

Assignee: Oratec Interventions, Inc.

International Classification: A61B 18/14 (20060101); A61N 1/40 (20060101); A61B 008/00 (); A61B 017/32 ()

Expiration Date: 01/02/2018