Safety hypodermic syringe

Details Safety hypodermic syringe Safety hypodermic syringe

2006-12-20

2009-11-03

Lucchesi, Nicholas D (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

07611488

ABSTRACT:
A safety hypodermic syringe formed of a barrel, a plunger, a locating block, a rubber stopper, a needle holder and a needle is disclosed. The plunger has a barbed front tip, which is forced into engagement with a hooked portion of the locating block when the plunger is pushed to the front end of the barrel so that the needle holder with the needle can be carried by the locating block to the inside of the barrel upon a backward movement of the plunger after the service of the syringe and biased with the locating block inside the barrel by means of the effect of a front pin of the rubber stopper.

REFERENCES:
patent: 6706015 (2004-03-01), Bang
patent: 2004/0210198 (2004-10-01), Shih
patent: 2005/0240150 (2005-10-01), Gordon

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