Surgical instrument suitable for closed surgery such as of the knee
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United States of America Patent
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May 20, 1980
Grant Date -
N/A
app pub date -
Nov 7, 1977
filing date -
Nov 7, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A surgical instrument useful in joint surgery for instance closed surgery of the knee. When in the form of a rotary vacuum shaver it comprises an external stationary tube having a side-facing, axially extending shaving port and an internal rotary blade capable of rotating at a slow speed, of the order of 200 rpm or below. Radial bearing portions at both proximal and distal ends radially support the blade in shearing relation to the external tube. A vacuum conduit draws fluid and articles to be shaved into the shaving port, and draws discrete shavings through the instrument, while the blade is driven at shearing speeds.
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