Electrosurgical and ultrasonic surgical system
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United States of America Patent
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Mar 2, 1993
Grant Date -
N/A
app pub date -
Jun 6, 1991
filing date -
Jun 6, 1991
priority date (Note) -
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Abstract
An electrical circuit system which provides electrical energy to a surgical apparatus having ultrasonic fragmentation, aspiration and electrosurgical coagulation capabilities, which system also includes an impedance sensing network and automatic feedback power output control to reduce RF power output as load impedance increases, thereby reducing RF leakage current.
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