Ultrasound surgery system

摘要

An ultrasound surgery system includes: a handpiece including an ultrasound transducer that generates ultrasound vibration and a treatment portion to which the ultrasound vibration is transmitted; a drive current output section provided in a power supply apparatus to which the handpiece is detachably connected, the drive current output section producing and outputting a drive current for driving the ultrasound transducer; a drive frequency output section that detects and outputs a drive frequency for driving the ultrasound transducer with a resonant frequency of the ultrasound transducer; a first information storage section that stores first information including a parameter unique to the handpiece; and a variable current setting section that variably sets the drive current produced by the drive current output section, based on the drive frequency detected by the drive frequency output section, in order to maintain an amplitude or a vibration velocity of the ultrasound vibration in the treatment portion at a predetermined value.

主权项

1. An ultrasound surgery system comprising:
a handpiece including an ultrasound transducer capable of generating ultrasound vibration and a probe joined to the ultrasound transducer, the probe being capable of transmitting the ultrasound vibration generated by the ultrasound transducer to a treatment portion; a power supply apparatus for driving the ultrasound transducer, the power supply apparatus allowing the handpiece to be detachably connected thereto; a drive current output section provided in the power supply apparatus, the drive current output section being configured to produce a drive current for driving the ultrasound transducer mounted in the handpiece connected to the power supply apparatus and output the produced drive current to the ultrasound transducer; a drive frequency output section provided in the power supply apparatus, the drive frequency output section being configured to detect a drive frequency for driving the ultrasound transducer mounted in the handpiece connected to the power supply apparatus, with a resonant frequency of the ultrasound transducer, and output the detected drive frequency; a first information storage section configured to store first information including a parameter based on identification information unique to the handpiece connected to the power supply apparatus, the first information being referred to when, in order to keep an amplitude or a vibration velocity of the ultrasound vibration in the treatment portion of the handpiece at a predetermined value according to the handpiece, a predetermined drive current value to be outputted to the ultrasound transducer, the predetermined drive current value corresponding to the predetermined value, is determined; a current calculation section configured to calculate the predetermined drive current value to be outputted to the ultrasound transducer; and a variable current setting section provided in the power supply apparatus, the variable current setting section being configured to variably set the drive current so that the drive current produced by the drive current output section, based on both (i) the parameter stored in the first information storage section and (ii) the drive frequency detected by the drive frequency output section, has the predetermined drive current value, in order to keep the amplitude or the vibration velocity of the ultrasound vibration in the treatment portion provided at a distal end portion of the probe in the handpiece connected to the power supply apparatus at the predetermined value.