Patent ID: 6019775
Filing Date: 2000-02-01
Classification: A61B

Abstract:
An ultrasonic operation apparatus comprising a handpiece serving as a surgical tool and an apparatus body including a power source unit for supplying electric power to the handpiece, wherein:the handpiece is exchangeably attachable to and detachable from the apparatus body, and comprises (i) an ultrasonic oscillation element for producing an ultrasonic oscillation, (ii) a probe for transmitting the ultrasonic oscillation to a region of interest, and (iii) signal outputting means for outputting a signal corresponding to an initial resonant frequency inherent in the ultrasonic oscillation element and hence the probe; andthe power source unit includes (i) power amplifying means for receiving the signal output by the signal outputting means of the handpiece, for amplifying the received signal, and for generating a corresponding drive signal, and (ii) connecting/transmitting means for transmitting the corresponding drive signal to the handpiece.