System and method for terminating treatment in impedance feedback algorithm
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United States of America Patent
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N/A
Issued Date -
Jul 26, 2007
app pub date -
Apr 24, 2006
filing date -
Oct 23, 1998
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A system and method for performing electrosurgical procedures are disclosed. The system includes an electrosurgical generator adapted to supply energy at an output level to tissue. The electrosurgical generator includes a microprocessor adapted to generate a desired impedance trajectory having at least one slope. The target impedance trajectory includes one or more target impedance values. The microprocessor is also adapted to drive tissue impedance along the target impedance trajectory by adjusting the output level to substantially match tissue impedance to a corresponding target impedance value. The microprocessor is further adapted to compare tissue impedance to a threshold impedance value and adjust output of the electrosurgical generator when the tissue impedance is equal to or greater than the threshold impedance. The system also includes an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue.
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