Electrosurgical and ultrasonic surgical system

Details Electrosurgical and ultrasonic surgical system Electrosurgical and ultrasonic surgical system

A - Human Necessities

61

B

A61B 17/22 (2006.01) A61B 18/12 (2006.01) A61M 1/00 (2006.01) A61B 17/39 (1995.01)

Patent

CA 2110684

An electrical circuit system (1) which provides electrical energy to a surgical apparatus having ultrasonic fragmentation, aspiration and electrosurgical coagulation capabilities, which system also includes an impedance sensing network (10) and automatic feedback power output control to reduce RF power output as load impedance increases, thereby reducing RF leakage current.

Cette invention concerne un circuit électrique (1) d'alimentation d'un appareil de chirurgie capable de fragmentation aux ultrasons, de succion et de cautérisation électrochirurgicale, ledit circuit comportant en outre un réseau détecteur d'impédance (10) et un régulateur automatique de puissance de sortie à rétroaction permettant de réduire la puissance de sortie haute fréquence à mesure que l'impédance de charge augmente et, par conséquent, les courants de fuite haute fréquence.

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