High frequency-high voltage level electrosurgical unit

Details High frequency-high voltage level electrosurgical unit High frequency-high voltage level electrosurgical unit

A - Human Necessities

61

B

326/15

A61B 18/12 (2006.01)

Patent

CA 1091771

HIGH FREQUENCY-HIGH VOLTAGE LEVEL ELECTROSURGICAL UNIT ABSTRACT A transistorized electrosurgical unit for selectively providing high frequency, high voltage level, cutting or coagulation currents to electro- surgical patent electrodes and including a plurality of parallel connected power stages actuatable by a control signal to supply power to an output transformer biased in a nonsaturated condition and connected in series with a constant current means, and a signal means connected to such power transistor to supply a switching signal thereto and to serve as a current flow path whenever current flow through the power transistor is interrupted.

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