Surgery – Instruments – Electrical application
Patent
1996-04-22
1999-11-02
Brown, Michael A.
Surgery
Instruments
Electrical application
606 42, A61B 1736
Patent
active
059761296
ABSTRACT:
An improved electrode apparatus for use with an endoscopic surgical instrument provides an adjustable volume of tissue ablation and may be used with an RF energy source in either monopolar or bipolar output mode. The electrode apparatus may be used in any endoscopic surgical application, and provides a new method for any endoscopic treatment involving soft tissue ablation, including hysteroscopic and laparoscopic treatment of uterine fibroids/myomas.
An improved electrode for use with an endoscopic surgical instrument providing for vaporization and coagulation, or cutting and coagulation of tissue. A field enhancement tip having outwardly projecting surfaces serves to provide an intense localized RF field for vaporizing of surface tissue and simultaneously coagulating the underlying tissue. An alternate electrode embodiment combines a cutting electrode tip followed by a coagulation tip to reduce bleeding.
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Brown Michael A.
Jaffer David H.
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