RADIO-FREQUENCY ELECTROSURGICAL DEVICE Russian patent published in 1996 - IPC

FIELD: medical equipment, in particular, radio-frequency destructors of heart conduction tracts. SUBSTANCE: radio-frequency electrosurgical device uses a radio-frequency generator, connected to passive and active electrodes, and a control unit comprising an amplifier connected to a temperature-sensitive element built in the active electrode; the control unit is connected to the radio-frequency generator via a switch; in addition, the control unit has an electronic double- pole switch and a temperature-sensitive element in the form of a matched pair of transistors, whose collector outputs are connected to the respective current sources, differential inputs of the amplifier and electronic switch inputs; the emitter outputs are connected to the common bus. EFFECT: automatic temperature control of the active electrode. 2 cl, 1 dwg