Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1992-01-21
1993-06-08
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604263, 128763, A61M 532
Patent
active
052174379
ABSTRACT:
A protective needle shield for use on a syringe type device wherein the shield is movable between a retracted position such that the needle is exposed and an extended or locked and extended position wherein the needle is protected and the shield is prevented from returning to the retracted position. A collar is operatively attached to the distal end of syringe device to selectively engage a key on the shield as the shield is moved between the retracted and extended positions. The shield slides longitudinally between the retracted and extended positions and may be rotated about the barrel of the syringe device to lock the shield in a locked and extended position. A locking mechanism is disclosed which preferably includes a series of ramps and slots adapted to engage portions of the keys on the shield to retain the shield in the locked and extended 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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