Electrosurgical apparatus

Details Electrosurgical apparatus Electrosurgical apparatus

1995-06-28

1997-07-15

Cohen, Lee S.

Surgery

Instruments

Electrical application

606 39, 606 40, 606 45, 606 48, 606 49, 606 50, A61B 1739

Patent

active

056478690

ABSTRACT:
In electrosurgical apparatus for tissue desiccation and cutting, an electrosurgical generator has a series-connected output inductor which forms a series resonant circuit with the capacitance of the generator load, the load including an electrode unit and a cable coupled to the generator output. The series resonant frequency is typically 1.5 f where f is the operating frequency of the generator. A capacitor may be included, coupled between the conductors which connect bipolar electrodes to the generator, to increase the load capacitance. The effect of these measures is to boost the output voltage available for electrosurgical treatment, especially for tissue cutting.

REFERENCES:
patent: 3707149 (1972-12-01), Hao et al.
patent: 3870047 (1975-03-01), Gonser
patent: 3875945 (1975-04-01), Friedman

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