04203444 is referenced by 570 patents and cites 13 patents.

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.

Title
Surgical instrument suitable for closed surgery such as of the knee
Application Number
5/848982
Publication Number
4203444
Application Date
November 7, 1977
Publication Date
May 20, 1980
Inventor
Lanny L Johnson
Okemos
MI, US
Douglas D Sjostrom
Wakefield
MA, US
Edward H McHugh
Southboro
MA, US
Leonard J Bonnell
Medford
MA, US
Assignee
Dyonics
MA, US
IPC
A61B 17/32
A61M 1/00
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