Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1991-03-01
1992-09-15
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604263, 604110, A61M 532
Patent
active
051473267
ABSTRACT:
A safety syringe of the type having a needle shield that is slidable between a needle exposing retracted position and a needle protecting extended position and wherein the needle shield is rotatable in the extended position to a locked and extended position. The safety syringe includes a collar mounted on the distal end of the syringe and a plurality of elongate keys on the interior surface of the needle shield. The keys are slidably received in various protrusions and slots on the collar to releasably retain the needle shield in the retracted and extended positions and to retain the needle shield in the locked and extended position. A needle sheath is also removably mounted on the distal end of the needle shield to cover the needle of the syringe when the needle shield is in the initial retracted position.
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Ranford Alan B.
Talonn Daniel A.
Allison Richard D.
Beck Andrew J.
Polutta Mark O.
Rosenbaum C. Fred
Sherwood Medical Company
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