Bipolar electrosurgical clamp for removing and modifying tissue
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United States of America Patent
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Nov 20, 2007
Grant Date -
Jun 15, 2006
app pub date -
Oct 11, 2005
filing date -
Oct 23, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to ablate, contract, coagulate, or otherwise modify a target tissue or organ. The closed configuration is adapted for clamping and coagulating a target tissue while the apparatus is operating in the sub-ablation mode, while the open configuration is adapted for ablating the target tissue via molecular dissociation of tissue components. A method of the present invention comprises clamping a target tissue or organ with an electrosurgical probe. A first high frequency voltage is applied between the active electrode and the return electrode to effect coagulation of the clamped tissue. Thereafter, a second high frequency voltage is applied to effect localized molecular dissociation of the coagulated tissue.
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