Disposable syringe

Details Disposable syringe Disposable syringe

2007-03-20

2007-03-20

Williams, Catherine S. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S240000, C604S110000

Reexamination Certificate

active

10288351

ABSTRACT:
A disposable syringe has a needle seat with an upper segment adapted to be fitted with a needle cannula, and a lower segment retained in a passage of a barrel. A plunger has a stem portion movable in the passage, a deformable surrounding engaging portion in sealing contact with the passage so as to be moved by the stem portion to a position of use, and a surrounding abutting head which is moved towards and which is held by a grip segment in the needle seat when the surrounding engaging portion is depressed by an edge portion of the needle seat by virtue of a continuing depression force of the plunger, thereby permitting the needle seat to be brought into the passage for disposal.

REFERENCES:
patent: 5098402 (1992-03-01), Davis
patent: 5112315 (1992-05-01), Gloyer et al.
patent: 5205824 (1993-04-01), Mazur
patent: 5342308 (1994-08-01), Boschetti
patent: 5531705 (1996-07-01), Alter et al.
patent: 5938641 (1999-08-01), Villanueva
patent: 5976895 (1999-11-01), Cipkowski
patent: 5976896 (1999-11-01), Kumar et al.
patent: 6099522 (2000-08-01), Knopp et al.
patent: 6196997 (2001-03-01), Saito
patent: 6341182 (2002-01-01), Fitzgerald et al.
patent: 6376251 (2002-04-01), Braun et al.

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