Surgery – Respiratory method or device – Ozone or ion generation
Patent
1976-11-15
1978-05-30
Yasko, John D.
Surgery
Respiratory method or device
Ozone or ion generation
128221, A61M 514
Patent
active
040918114
ABSTRACT:
A needle cover for a blood collection needle or the like comprises a first sleeve positioned about a pointed hypodermic needle. The first sleeve is removably carried by a hub, which also carries the needle. In accordance with this invention an inner sleeve is provided, positioned within the first sleeve and about the point of the needle. The inner sleeve is free of mechanical attachment to the first sleeve so that, upon rotation of the outer sleeve for its removal from the hub, the inner sleeve does not rotate with the first sleeve. Accordingly, the danger of the pointed needle scouring out and retaining bits of plastic from the sleeve is eliminated.
REFERENCES:
patent: 3523530 (1970-08-01), Pagones
patent: 3734095 (1973-05-01), Santomieri
patent: 3980083 (1976-09-01), Elliott
Bates David A.
Capritta Angelo T.
Baxter Travenol Laboratories Inc.
Collins Henry W.
Ellis Garrettson
Flattery Paul C.
Yasko John D.
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