Safety hypodermic syringe

Details Safety hypodermic syringe Safety hypodermic syringe

2006-02-28

2009-11-24

Sirmons, Kevin C (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

C604S195000

Reexamination Certificate

active

07621888

ABSTRACT:
A safety hypodermic syringe is disclosed to includes a barrel, which has a spiral tear groove on the front wall around a tubular neck that holds a needle assembly and a race for enabling the front wall of the barrel to be broken and carried with the needle assembly inside the barrel by a plunger after the service of the safety hypodermic syringe, and a support ring sleeved onto the tubular neck and stopped against the front wall of the barrel between the tubular neck and the race to prevent breaking of the spiral tear groove accidentally during transportation.

REFERENCES:
patent: 5458576 (1995-10-01), Haber et al.
patent: 6582407 (2003-06-01), Lo
patent: 6592555 (2003-07-01), Wen-Pi et al.
patent: 2005/0096602 (2005-05-01), Lin

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