Surgery – Respiratory method or device – Ozone or ion generation
Patent
1977-11-07
1980-05-20
Michell, Robert W.
Surgery
Respiratory method or device
Ozone or ion generation
128305, 128752, A61M 100, A61B 1732
Patent
active
042034442
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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patent: 3976077 (1976-08-01), Kerfoot
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Bonnell Leonard J.
Johnson Lanny L.
McHugh Edward H.
Sjostrom Douglas D.
Dyonics, Inc.
Michell Robert W.
Thaler Michael H.
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