Independent control of dual RF unipolar electrosurgery with shared return electrode

摘要

PROBLEM TO BE SOLVED: To provide independent control of dual RF unipolar electrosurgery using a shared return electrode. An electrosurgical generator 100 is coupled to a first power source 202 configured to output a first DC waveform, a first power source, and has a first DC waveform to a first radio frequency. It includes a first radio frequency source 340 having a first radio frequency inverter 208 configured to generate a waveform and a first controller 204 configured to control the first radio frequency inverter. The electric surgical generator is also coupled to a second power source 302, a second power source configured to output a second DC waveform, and simultaneously produces a second radio frequency waveform with the first radio frequency waveform. It includes a second radio frequency source having a second radio frequency inverter 308 configured to generate and a second controller 304 configured to control the second radio frequency inverter. [Selection diagram] Fig. 3