Methods for electrosurgical tissue treatment in electrically conductive fluid
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United States of America Patent
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Jan 30, 2007
Grant Date -
Feb 23, 2006
app pub date -
Oct 20, 2005
filing date -
May 10, 1993
priority date (Note) -
Expired
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Abstract
An electrosurgical probe comprises a shaft having at least one electrode terminal at its distal end and a connector at its proximal end. The electrode terminal may be spaced from a return electrode such that when the electrode terminal is brought adjacent a tissue structure immersed in an electrically conductive fluid from outside the body, the electrically conductive fluid completes a conduction path between the electrode terminal and the return electrode. By applying high frequency electrical energy to the electrode terminal, target tissue may be cut or ablated while heat dissipation through low impedance paths, such as blood and normal saline, will be minimized. Related methods are disclosed.
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