Electrosurgical medical system and method
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United States of America Patent
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Sep 5, 2017
Grant Date -
Nov 28, 2013
app pub date -
Jun 21, 2013
filing date -
Dec 28, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for mitigating leakage in an RF electrosurgical generator includes delivering an RF signal from an RF electrosurgical generator to an electrosurgical electrode by way of a patient box; providing a balanced and symmetrical shielded transmission line coupling said electrosurgical generator disposed in a first housing to said patient box disposed in a second, different housing; providing a common mode choke in said patient box, said common mode choke including an output winding and a return winding, said output winding and said return winding spaced apart and in parallel to maintain a desired impedance, said output winding comprising a wire carrying said RF signal as an output signal and said return winding carrying a return signal from a return electrode; and directing a common mode signal from said RF signal to said common mode choke thereby blocking said common mode signal.
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