06416509 is referenced by 527 patents and cites 190 patents.

An electrosurgical system including an electrode assembly having two electrodes for use immersed in an electrically conductive fluid has a generator with control circuitry for rapidly reducing the delivered radio frequency output power by at least 50% within at most a few cycles of the peak radio frequency output voltage reaching a predetermined threshold limit. In this way, tissue coagulation can be performed in, for example, saline without significant steam generation. The same peak voltage limitation technique is used in a tissue vaporization or cutting mode to limit the size of the steam pocket at the electrodes and to avoid electrode burning. In a blended mode, the output voltage is alternately limited to a value appropriate for coagulation and a value appropriate for cutting or vaporization.

Title
Electrosurgical generator and system
Application Number
9/48717
Publication Number
6416509 (B1)
Application Date
March 26, 1998
Publication Date
July 9, 2002
Inventor
Colin Charles Owen Goble
South Glamorgan
US
Nigel Mark Goble
Castleton Nr. Cardiff
US
Agent
Nixon & Vanderhye P C
US
Assignee
Gyrus Medical
US
IPC
A61B 18/18
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