Surgery – Instruments – Electrical application
Reexamination Certificate
2006-04-05
2010-12-07
Peffley, Michael (Department: 3739)
Surgery
Instruments
Electrical application
C606S038000
Reexamination Certificate
active
07846156
ABSTRACT:
An electrosurgical generator apparatus controls a variable output signal to electrodes. The generator apparatus operates in a cut mode, a coagulation mode or a stimulate mode. The generator apparatus comprises a DC power supply that provides regulated low voltage and high voltage outputs and a radio frequency (RF) waveform generator circuit that provides pulse duration modulation (PDM) of a carrier signal. The carrier signal directly affects the variable output signal to the electrodes. A control circuit controls a variable output signal to electrodes used in electrosurgical procedures. The control circuit comprises a DC power supply circuit that provides regulated low voltage and high voltage outputs and an RF waveform generator circuit that provides pulse duration modulation of a carrier signal. The carrier signal directly affects the variable output signal to the electrodes.
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Acorcey Robert R.
Groch Anthony John
Malis Jerry L.
Malis Leonard L.
Solt David L.
Panitch Schwarze Belisario & Nadel LLP
Peffley Michael
Synergetics USA, Inc.
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