Surgical instrument for ultrasonic separation of biological tissue
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United States of America Patent
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-
Feb 19, 1980
Issued Date -
N/A
app pub date -
Sep 12, 1978
filing date -
Dec 28, 1973
priority date (Note) -
Expired
status (Latency Note)
Importance
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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