Zhao ying Zhou,Yu li Zhang,Xiao ning Luo,Qing Zhou,Wei Tian
申请号：
US15693246
公开号：
US20180185052A1
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. A drive motor causes on oscillation mechanism, which may be a rocker, to oscillate in a direction tangentially to the longitudinal axis. The oscillating mechanism may then couple to the energy converter, causing the entire cutting structure to move in this oscillation. This causes the cutter to ultrasonically vibrate along the longitudinal axis, while oscillating tangentially to the longitudinal axis.
