| 摘要 |
FIELD: medical equipment. ^ SUBSTANCE: electric-surgical device can be used for cutting and coagulating of soft tissues of human body. Electric-surgical device has power supply, which has current detector and it is connected with high frequency generator, commutation circuit, active and passive electrodes, indication and control circuit and voltage detector. Current detector is connected to switch control circuit which is connected with indication and control circuit and with switch. Voltage detector is connected with primary winding of transformer of high frequency generator and with switch control unit through indication and control circuit. No-load voltage feedback is provided in ac circuit of output transformer of high frequency oscillator, which circuit doesn't include patient's body. ^ EFFECT: reduced consumed power; higher electric safety of apparatus. ^ 2 cl, 1 dwg |
