Electrosurgical generator

Details Electrosurgical generator Electrosurgical generator

A - Human Necessities

61

B

326/15, 327/28

A61B 18/12 (2006.01)

Patent

CA 1175110

ELECTROSURGICAL GENERATOR ABSTRACT OF THE DISCLOSURE A solid-state electrosurgical generator is disclosed which provides output waveforms that are optimized for electrosurgical fulguration. The fulguration output circuitry consists of a radio-frequency tank circuit which is periodically pulsed to produce a periodic damped-sinusoidal output waveform. However, the damping factor is sufficiently low so that many cycles of the the waveform occur between periodic input pulses. Although the duty cycle is relatively high compared to prior art devices, cutting and burning effect are prevented by a high impedance output which internally limits fulguration arc current. The fulgurating arc developed by the device is longer and more consistent than that developed by previous devices thereby resulting in superior fulguration.

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