Safety syringe

Details Safety syringe Safety syringe

2005-12-20

2005-12-20

Thanh, LoAn H. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C128S919000

Reexamination Certificate

active

06976975

ABSTRACT:
A safety syringe has a hollow barrel, a plunger, a connector, a plug and a needle hub. The plunger includes a socket to mount the connector. The connector has a needle connector protruded from the connector to connect with the needle hub. When the plunger is pushed toward the needle hub the first time, the needle hub of the connector is hidden in the socket and the plunger can not connect with the needle hub. When the plunger is pulled back and the syringe is full of medical solution, the needle hub of the connector protrudes from the socket. Pushing the plunger again toward the needle hub can connect the plunger and the needle hub together and the needle hub can retract back in the hollow barrel.

REFERENCES:
patent: 4923443 (1990-05-01), Greenwood et al.
patent: 5401246 (1995-03-01), Mazur et al.
patent: 5462531 (1995-10-01), Novacek et al.
patent: 5520649 (1996-05-01), Novacek et al.
patent: 5820605 (1998-10-01), Zdeb et al.
patent: 6344031 (2002-02-01), Novacek et al.
patent: 6706015 (2004-03-01), Bang
patent: 2003/0212366 (2003-11-01), Bang
patent: 2004/0082911 (2004-04-01), Tiu et al.

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