Pulsed ultrasonic device and method

Details Pulsed ultrasonic device and method Pulsed ultrasonic device and method

1999-03-02

2000-02-22

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

604 22, A61B 1732

Patent

active

060275154

ABSTRACT:
This invention relates generally to ultrasonic surgical apparatus. More particularly, this invention relates to an improved method and apparatus for generating profiled pulses of ultrasonic frequency vibratory energy at a distal surface of an ultrasonic applicator of an ultrasonic surgical instrument for application to tissues of a patient with specific relationships between a magnitude of the pulse of ultrasonic frequency vibratory energy and a duration of the pulse of ultrasonic frequency vibratory energy so that the ultrasonic applicator can be driven to vibratory amplitudes previously not achievable and a more expedient surgical effect obtained.

REFERENCES:
patent: 3673475 (1972-06-01), Britton
patent: 3980906 (1976-09-01), Kuris
patent: 4343111 (1982-08-01), Inoue
patent: 4614178 (1986-09-01), Harlt
patent: 4827911 (1989-05-01), Broadwin
patent: 5808396 (1998-09-01), Boukhny
patent: 5938677 (1999-08-01), Boukhny et al.
patent: 5976167 (1999-11-01), Lee
Analog Devices 1992 Special Linear Reference Manual Application notes for AD633, pp. 2-52, 53.

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