ULTRASONIC SURGERY DEVICE, ULTRASONIC SURGERY SYSTEM, AND METHOD FOR REDUCING CAVITATION

摘要

An ultrasound operation apparatus 21 includes an ultrasound transducer Ib; a drive section 5 that drives the ultrasound transducer Ib using a drive signal; a probe 2 that has a proximal end section in which the ultrasound transducer Ib is provided and a distal end section to which ultrasound vibrations are transmitted, and that performs treatment for living tissue by using ultrasound vibrations at the distal end section; a resonance frequency tracking section 37 that drives so as to cause ultrasound vibrations to be generated at a resonance frequency; a detection section 38 having a function of a filter section 39 that detects a frequency component signal of a frequency component other than a resonance frequency of the drive signal; and a cavitation suppression control section 40a that controls so as to suppress or eliminate cavitations according to the detection result.