0923907-A1 is referenced by 588 patents and cites 3 patents.

An electrosurgical instrument for the treatment of tissue comprises an instrument shaft and an electrode assembly at the distal end of the shaft. The electrode assembly comprises an active electrode (11, 21) having a tissue treatment portion, a return electrode (12, 22) and an insulating member (14, 24) electrically insulating the active electrode and the return electrode. The active electrode (11, 21 )is movable cyclically relative to the return electrode (12, 22) so as to move the active electrode cyclically into, and out of, a position in which arcing occurs between the active and return electrodes. The active electrode (11, 21) may be rotatable or reciprocable relative to the return electrode (12, 22).

Title
An electrosurgical instrument
Application Number
EP19980310161 19981211
Publication Number
0923907 (A1)
Application Date
December 11, 1998
Publication Date
June 23, 1999
Inventor
Syrop Alain Nigel
GB
Goble Colin Charles Owen
GB
Goble Nigel Mark
GB
Assignee
Gyrus Medical
GB
IPC
A61B 17/39
A61B 18/14
A61B 18/14
A61B 18/16
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