Shielded syringe

Details Shielded syringe Shielded syringe

1993-10-20

1996-06-18

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, 604110, A61M 532

Patent

active

055272940

ABSTRACT:
A shielded syringe includes a cylindrical syringe barrel having an interior chamber a needle secured at one end of said barrel and a plunger slidably received within the interior chamber A sheath for preventing contact with said needle is provided with the sheath being slidably disposed on said cylindrical syringe barrel and movable therealong from a closed position surrounding said needle to an open position exposing said needle A locking system for releasably locking the sheath in both the open and closed positions, includes a tab disposed on an inside surface of said sheath an elongate strip member having one and thereof secured to said cylindrical syringe barrel and a pair of berms thereon for engaging said tab. A spring is provided for urging said tab against one of said pair of berms when the sheath is in the open position and in the closed position.

REFERENCES:
patent: 5057079 (1991-10-01), Tiemann et al.
patent: 5197953 (1993-03-01), Colonna
patent: 5201708 (1993-04-01), Martin
patent: 5259841 (1993-11-01), Hohendorf et al.

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