An electrosurgical generator is disclosed. The generator includes an RF output stage configured to generate a sinusoidal waveform for a selected electrosurgical mode. The RF output stage includes 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 component and a second parallel inductor-capacitor resonant circuit. The first parallel inductor-capacitor resonant circuit is configured to produce a first half-sinusoidal waveform and the second parallel inductor-capacitor resonant circuit is configured to produce a second half-sinusoidal waveform. The first and second switching components are in a 180 degree out-of-phase relationship and are configured to operate at a predetermined frequency based on a phase-correlated dual drive signal.

Title
Dual Synchro-Resonant Electrosurgical Apparatus with Bi-Directional Magnetic Coupling
Application Number
12/392176
Publication Number
20090157073
Application Date
February 25, 2009
Publication Date
June 18, 2009
Inventor
James H Orszulak
Nederland
CO, US
Agent
Tyco Healthcare Group
CT, US
Assignee
Sherwood Services
IPC
A61B 18/12
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