Syringe and sliding locking needle shield

Details Syringe and sliding locking needle shield Syringe and sliding locking needle shield

1989-06-09

1992-10-20

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604192, 604263, 128919, A61M 532

Patent

active

051565994

ABSTRACT:
A safety syringe having a protective barrel which is movable between a retracted position wherein the needle is exposed and a locked extended position wherein the needle is protected. A collar is attached to the distal end of the sleeve to selectively engage a key on the shield in the retracted and extended positions. The locking mechanism preferably includes a series of ramps and slots which engage portions of the shield to retain the shield in 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 to irreversibly lock the shield in the extended position.

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