Surgical instrument for ultrasonic separation of biological tiss

Details Surgical instrument for ultrasonic separation of biological tiss Surgical instrument for ultrasonic separation of biological tiss

1978-09-12

1980-02-19

Howell, Kyle L.

Surgery

Truss

Pad

30144, 30355, 128 24A, A61B 1732

Patent

active

041889525

ABSTRACT:
The instrument connected to an ultrasonic oscillations source is provided with a knife to perform longitudinal mechanical oscillations at ultrasonic frequency during tissue separation. The working portion of the knife is essentially a plate made of a titanium alloy and having a pentogonal cross-section, a smooth rounding at the end thereof and two rows of teeth of triangular and wave-like shapes for separating osseous and cartilaginous tissue, respectively. A specific dimensional geometry of the instrument knife is described.

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patent: 812507 (1906-02-01), Ludewig
patent: 912411 (1909-02-01), Putney
patent: 2293286 (1942-08-01), Fenner
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patent: 2685734 (1954-08-01), Klein
patent: 2714890 (1955-08-01), Vang
patent: 2874470 (1959-02-01), Richards
patent: 3086288 (1963-04-01), Balamuth et al.
patent: 3433226 (1969-03-01), Boyd
patent: 3636943 (1972-01-01), Balamuth
patent: 3888004 (1975-06-01), Coleman

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