公开(公告)号：US20180193055A1

公开(公告)日：2018-07-12

申请号：US15693281

申请日：2017-08-31

Applicant: Zhao ying Zhou ,  Yu li Zhang ,  Xiao ning Luo ,  Qing Zhou ,  Wei Tian

Inventor： Zhao ying Zhou ,  Yu li Zhang ,  Xiao ning Luo ,  Qing Zhou ,  Wei Tian

IPC: A61B17/32 ,  A61B17/3207 ,  A61B17/14

CPC classification number: A61B17/320068 ,  A61B17/142 ,  A61B17/1624 ,  A61B17/1628 ,  A61B17/1631 ,  A61B17/32002 ,  A61B2017/22011 ,  A61B2017/320028

Abstract: 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

公开(公告)号：US20180185052A1

公开(公告)日：2018-07-05

申请号：US15693246

申请日：2017-08-31

Applicant: Zhao ying Zhou ,  Yu li Zhang ,  Xiao ning Luo ,  Qing Zhou ,  Wei Tian

Inventor： Zhao ying Zhou ,  Yu li Zhang ,  Xiao ning Luo ,  Qing Zhou ,  Wei Tian

IPC: A61B17/32 ,  A61B17/16

CPC classification number: A61B17/320068 ,  A61B17/142 ,  A61B17/1624 ,  A61B17/1628 ,  A61B17/1631 ,  A61B17/32002 ,  A61B2017/22011 ,  A61B2017/320028

Abstract: 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.