Patent ID: 7513896
Filing Date: 2009-04-07
Classification: A61B

Abstract:
1. An electrosurgical generator comprising: a selection module configured to transmit control signals which adjusts the electrosurgical generator to produce sinusoidal waveforms suitable for the at least one electrosurgical mode; an RF output stage which generates sinusoidal waveforms for at least one electrosurgical mode, the RF output stage connected to a DC power supply including first and second connections, the first connection including a first switching component and a first parallel inductor-capacitor resonant circuit and the second connection including a second switching components and a second parallel inductor-capacitor resonant circuit, the first and second switching components being configured to open and close at a predetermined frequency based on a phase-correlated dual drive signal emitted by a driver and are in a 180 degree out-of-phase relationship, the first parallel inductor-capacitor resonant circuit being configured to produce a first half-sinusoidal waveform and the second parallel inductor-capacitor resonant circuit being configured to produce a second half-sinusoidal waveform, the RF output stage including: