公开(公告)号：DE3788099D1

公开(公告)日：1993-12-16

申请号：DE3788099

申请日：1987-04-02

Applicant: VALLEYLAB INC

Inventor： BROADWIN ALAN ,  KREIZMAN ALEXANDER ,  PUIAM CHANA ,  PODANY VACLAV ,  EMERY LEONARD

IPC: A61B18/00 ,  A61B17/00 ,  A61B17/22 ,  A61B18/12 ,  A61M1/00 ,  B06B1/02 ,  A61B17/20

Abstract: A method and apparatus for periodically interrupting ultrasonic power applied to a ultrasonically vibrating tip to control its amplitude between high and low or zero amplitudes with a selectible duty cycle and repetition rate provides enhanced fragmentation and improves surgical control. The duty cycle may also vary as a function of a remotely sensed parameter such as tissue temperature.

公开(公告)号：DE3788099T2

公开(公告)日：1994-03-03

申请号：DE3788099

申请日：1987-04-02

Applicant: VALLEYLAB INC

Inventor： BROADWIN ALAN ,  KREIZMAN ALEXANDER ,  PUIAM CHANA ,  PODANY VACLAV ,  EMERY LEONARD

IPC: A61B18/00 ,  A61B17/00 ,  A61B17/22 ,  A61B18/12 ,  A61M1/00 ,  B06B1/02 ,  A61B17/20

Abstract: A method and apparatus for periodically interrupting ultrasonic power applied to a ultrasonically vibrating tip to control its amplitude between high and low or zero amplitudes with a selectible duty cycle and repetition rate provides enhanced fragmentation and improves surgical control. The duty cycle may also vary as a function of a remotely sensed parameter such as tissue temperature.