05944715 is referenced by 547 patents and cites 474 patents.

An electrosurgical instrument, for the treatment of tissue in the presence of an electrically-conductive fluid medium, 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 has an exposed end extending laterally through a cut-out provided in the insulation member at the distal end portion of the instrument. The return electrode has a fluid contact surface which overlies the insulation member in the region of the cut-out. The fluid contact surface is spaced from 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 electrode and the return electrode.

Title
Electrosurgical instrument
Application Number
8/756003
Publication Number
5944715
Application Date
November 25, 1996
Publication Date
August 31, 1999
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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