Voltage threshold ablation method and apparatus
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United States of America Patent
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Jul 2, 2002
Grant Date -
N/A
app pub date -
Aug 1, 2000
filing date -
Aug 1, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for treating tissue using an electrosurgical system. The system includes an electrosurgical system having an RF generator, a treatment electrode electrically coupled to the RF generator and positioned in contact with target tissue to be treated, and a spark gap switch positioned between the RF generator and the target tissue. The spark gap includes a threshold voltage and is configured to prevent conduction of current from the RF generator to the tissue until the voltage across the spark gap reaches the threshold voltage. The method includes the steps of using the RF generator to apply a voltage across the spark gap switch, the spark gap switch causing conduction of current from the RF generator to the target tissue once the voltage across the spark gap reaches the threshold voltage.
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