Ultrasonically driven blade with a radial hook that defines a ci

Details Ultrasonically driven blade with a radial hook that defines a ci Ultrasonically driven blade with a radial hook that defines a ci

1996-02-20

1997-09-23

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606170, A61B 1732

Patent

active

056699220

ABSTRACT:
An ultrasonically driven blade which has a radial hook. The radial hook defines a recess that has a circular cross-section. The radially hook shape blade has a relatively small amount of mass located at an anti-node of the blade assembly. The relatively light anti-nodal tip provides a large energy gain and efficiently transfers ultrasonic energy to surrounding tissue. Additionally, the ultrasonic energy is transferred from the hook to tissue primarily along a longitudinal axis of the blade, thereby increasing the energy efficiency of the overall assembly.

REFERENCES:
patent: 3086288 (1963-04-01), Balamuth et al.
patent: 5151084 (1992-09-01), Khek
patent: 5261922 (1993-11-01), Hood
patent: 5324299 (1994-06-01), Davison et al.
patent: 5417654 (1995-05-01), Kelman
patent: 5443474 (1995-08-01), Sfakianos et al.

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