Electrosurgical generator

Details Electrosurgical generator Electrosurgical generator

1981-07-06

1984-02-07

Cohen, Lee S.

Surgery

Truss

Pad

12830317, A61B 1739

Patent

active

044296940

ABSTRACT:
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 waveform occur between periodic input pulses. Although the duty cycle is relatively high compared to prior art devices, cutting and burning effects 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.

REFERENCES:
patent: 3658067 (1972-04-01), Bross
patent: 3699967 (1972-10-01), Anderson
patent: 3952748 (1976-04-01), Kaliher et al.
patent: 3963030 (1976-06-01), Newton
patent: 4030501 (1977-06-01), Archibald
patent: 4318409 (1982-03-01), Ooster
Sabah, "A High-Frequency Coagulator . . . ", EEG & Clin. Neurophysiology, vol. 36, No. 3, pp. 311-313, Mar. 1974.

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