Safety syringe

Details Safety syringe Safety syringe

1998-12-16

1999-11-30

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604195, A61M 500

Patent

active

059934190

ABSTRACT:
A safety syringe includes a barrel having a front neck, a needle holder mounted in the front neck of the barrel to hold a needle unit outside the front neck of the barrel, the needle holder having a rear coupling hole, a plunger reciprocated in the barrel, and a coupling member connected to the plunger, the coupling member having a conical split head, which is forced into engagement with the rear coupling hole of the needle holder for enabling the needle holder and the needle unit to be carried backwards with the plunger and received inside the barrel after the use of the syringe.

REFERENCES:
patent: 4950241 (1990-08-01), Ranford
patent: 5000738 (1991-03-01), La Vallo et al.
patent: 5088987 (1992-02-01), Noonan, Jr.
patent: 5531705 (1996-07-01), Alter et al.

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