Daniel V. PALANKER;Paul O. DAVISON;Alexander B. VANKOV
发明人:
Paul O. DAVISON,Daniel V. PALANKER,Alexander B. VANKOV
申请号：
US13436581
公开号：
US20120191084A1
申请日:
2012.03.30
申请国别(地区):
US
年份:
2012
代理人:
摘要：
Electrosurgery method and apparatus. In the method, tissue is cut or coagulated, with an electrically low conductive liquid providing cooling. In another method, skin is cut by electrosurgery in a dry field using a low duty cycle signal energizing the cutting electrode, minimizing tissue charring. A combination coagulation and cutting electrode performs both functions. The cutting is performed by a blade edge generating a local plasma adapted for cutting. Superimposed on the blade edge is an electrode of greater surface area electrically insulated from the cutting electrode, for coagulation. In another version, a single component cutting/coagulation blade (electrode) has a cutting and a flat partially insulated portion defining through holes in the insulation for coagulation. Also provided is an electrical circuit whereby each electrode is isolated by a filter from cross talk and feedback of the RF signal from the other electrode, minimizing arcing.
