06027501 is referenced by 452 patents and cites 478 patents.

An electrosurgical instrument, which is used to treat tissue in the presence of an electrically-conductive fluid, comprises an instrument shaft and an electrode assembly at one end of the shaft. The electrode assembly comprises a tissue treatment electrode and a return electrode which is electrically insulated from the tissue treatment electrode by means of an insulation member. The tissue treatment electrode is exposed at the extreme distal end of the instrument, and the return electrode has a fluid contact surface spaced from the exposed end of the tissue treatment electrode by the insulation member. The instrument further comprises feed means for feeding electrically-conductive fluid to the region of the exposed end of the tissue treatment electrode in such a manner as to define, in use, a conductive fluid path that completes an electrical circuit between the tissue treatment and the return electrode.

Title
Electrosurgical instrument
Application Number
8/737302
Publication Number
6027501
Application Date
October 21, 1996
Publication Date
February 22, 2000
Inventor
Colin Charles Owen Goble
Penarth
GB
Nigel Mark Goble
Cardiff
GB
Agent
Nixon & Vanderhye P C
Assignee
Gyrus Medical
GB
IPC
A61B 17/39
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