Shielded hypodermic needle assembly and a shield assembly for a

Details Shielded hypodermic needle assembly and a shield assembly for a Shielded hypodermic needle assembly and a shield assembly for a

1992-11-16

1994-11-01

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

053604083

ABSTRACT:
The shield assembly for a hypodermic needle includes a sleeve which is mounted on a syringe housing and a tubular shield which can be moved between an extended position over the hypodermic needle to a retracted position partially within the sleeve to expose the hypodermic needle. A resilient strip is used to engage in a recess of the shield to lock the shield in the extended position. A slide block is also provided to disengage the resilient strip from the shield to permit retraction of the shield and consequent exposure of a hypodermic needle. A spring serves to return the shield to the extended position.

REFERENCES:
patent: 5059184 (1991-10-01), Dyke
patent: 5104384 (1992-04-01), Parry
patent: 5201708 (1993-04-01), Martin
patent: 5222947 (1993-06-01), D'Amico
patent: 5246428 (1993-09-01), Falknor

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