Cavitation-assisted method of material separation

Details Cavitation-assisted method of material separation Cavitation-assisted method of material separation

1997-08-07

1999-08-10

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

30355, A61B 1732

Patent

active

059351420

ABSTRACT:
Disclosed is an improved ultrasonic knife of a type for incising various types of material. The knife has a reduced thermal footprint to tailor thermally induced tissue effects. Tooth configuration on the knife cooperates with the stroke of the ultrasonic drive to produce efficient cutting, as well as tactile feedback to the surgeon with respect to the rate of cutting, and changes in tissue density. Ultrasonic knife tip extenders are also disclosed for advancing the ultrasonic knife tip through the working channel of an endoscope or trocar sheath. Methods utilizing the foregoing apparatus are also disclosed.

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