Xiao ning Luo;Qing Zhou;Zhao ying Zhou;Yu li Zhang;Wei Tian
发明人:
Zhao ying Zhou,Yu li Zhang,Xiao ning Luo,Qing Zhou,Wei Tian
申请号：
US15693281
公开号：
US20180193055A1
申请日:
2017.08.31
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Ultrasonic surgical device is provided. The device includes a shell which holds an energy converter and an amplitude-change pole. The energy converter may include piezoceramic stack that converts electrical signals into mechanical ultrasonic movement in the longitudinal direction of the device. The amplitude-change pole is a mechanical amplifier that uses mass differentials to amplify the ultrasonic motion. A cutting instrument interfaces with the amplitude-change pole. The system also includes a rotary drive device comprising a drive motor also axially arranged with the cutting instrument. The motor rotates the amplitude-change pole, energy converter, and ultimately the cutting instrument. In some embodiments the rate of rotation is at 40-1000 rpm, at 50-650 rpm and at 60-350 rpm depending on configuration. In some cases the user may be enabled to alter the rotational speed within these ranges
