Electrosurgical generator

Details Electrosurgical generator Electrosurgical generator

A - Human Necessities

61

B

326/15

A61B 17/36 (1985.01)

Patent

CA 1210076

ELECTROSURGICAL GENERATOR ABSTRACT OF THE DISCLOSURE A solid-state electrosurgical generator is disclosed which provides three separate output circuits that may be operated from a single common power source. One of the output circuits produces an output electrical waveform which is optimized for cutting and coagulation with monopolar electrodes. Another source provides a waveform which is optimized for cutting and coagulation with bipolar electrodes. The other electrosurgical source produces an output electrical waveform which is optimized for fulguration. The output circuits produce the optimized waveforms by appropriately processing electrical power provided by a D.C. power source. In order to do this, the output circuits may be connected to the power source by means of four semiconductor switches which may be arranged in either a bridge configuration for one output circuit or in a series arrangement for the other output circuit. The switches are, in turn, controlled by a timing circuit which provides different timing waveforms to the switches depending on their configuration.

493779

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