METHOD AND DEVICE FOR CONTROLLING PLASMA FLUX AT SURGICAL INFLUENCE ONTO BODY'S TISSUES Russian patent published in 2005 - IPC

FIELD: medical equipment.

SUBSTANCE: method is based upon change in plasma generator's electric power at change in voltage supply to input of generator. Voltage is applied to input of generator and is subject to change smoothly and without delays due to applying and storing of electric signals of transient processes power in storage. Signals come from current and voltage detectors through corresponding rectifying-differentiating circuits and AND gate. Transient process energy discharge level is preset by means of introducing smooth changes in storage. Device for controlling plasma flux has high-frequency voltage generator with high-frequency voltage converter which has low-voltage electrode connected with plasma generator. The latter is provided with needle electrode. Device also has AND gate. Low-voltage output is connected with current and voltage inductance detectors which both are connected with input of AND gate through differentiating circuits. Output of AND gate is connected with storage provided with shunting variable resistor.

EFFECT: improved efficiency of operation.

2 cl, 2 dwg