Syringe

Details Syringe Syringe

1988-02-17

1990-06-19

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 532

Patent

active

049350161

ABSTRACT:
Disclosed is a syringe including a barrel 12 having a needle 14 extending outwardly therefrom and a guard member 22 carried on the barrel, and movable between a retracted position exposing said needle and an extended position covering said needle. The guard member 22 has the ability to expand and contract as it is moved between retracted and extended positions. Interactive locking elements 38, 40, 57 and 59 on the barrel 12 and the guard member 22 permanently lock the guard member in the extended position, with pin elements 38 and 40 engaging the guard member to expand the guard member as it moves between the retracted and extended positions.

REFERENCES:
patent: 4737144 (1988-04-01), Choksi

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