Ultrasonic trocar system

Details Ultrasonic trocar system Ultrasonic trocar system

1997-01-21

1998-03-17

Dawson, Glenn K.

Surgery

Instruments

Cutting, puncturing or piercing

604 22, 604264, A61B 1734, A61B 1720, A61M 500

Patent

active

057281300

ABSTRACT:
An ultrasonic trocar system includes a cannula having a guide bore, an obturator to be passed through the guide bore of the cannula so that the obturator can be removed, and a vibration generator for generating ultrasonic vibrations to be propagated to the obturator. The obturator is vibrated at an ultrasonic frequency to puncture a somatic layer. An intermediate member is interposed between the cannula and obturator.

REFERENCES:
patent: 5449370 (1995-09-01), Vaitekunas
patent: 5472447 (1995-12-01), Abrams et al.

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