Electrosurgical apparatus employing constant voltage and methods

Surgery – Instruments – Electrical application

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Details

606 49, 606 32, 606 34, 606 37, A61B 1739

Patent

active

054724430

ABSTRACT:
Methods and apparatus are provided for use in performing electrosurgery, wherein a power supply supplies an electrosurgical instrument with a low voltage power signal having a substantially constant peak-to-peak voltage that is independent of the load impedance and which has a crest factor near unity. A power supply is provided to supply a voltage waveform in accordance with the methods of the invention. A clipping circuit is also provided to permit practice of the methods using conventional electrosurgcial generators and previously known electrosurgical instruments, wherein the voltage amplitude and waveform is modified to the desired regime.

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