Safety syringe with off-axis needle cannula

Details Safety syringe with off-axis needle cannula Safety syringe with off-axis needle cannula

1991-04-08

1993-12-07

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604110, 604240, 128765, A61M 532

Patent

active

052679730

ABSTRACT:
A syringe (2), of the type having a barrel (4) with a plunger (6) disposed within the bore of the barrel, includes a needle assembly (22) housed within a needle assembly guide (14) positioned along the exterior (16) of the syringe barrel. The needle assembly guide provides a path along which the needle assembly moves, between an extended position, with the needle exposed, and a retracted position, with the needle encompassed by the needle guide. A flow path (36, 44) exists between the interior (46) of the syringe barrel and the needle assembly when the needle assembly is in the extended position. Additionally, the needle assembly can be irreversibly locked (54, 60) in the retracted position to prevent syringe reuse.

REFERENCES:
patent: 4573976 (1986-03-01), Sampson et al.
patent: 4834717 (1989-05-01), Haber et al.
patent: 4900307 (1990-02-01), Kulli
patent: 4927414 (1990-05-01), Kulli
patent: 4941883 (1990-07-01), Venturini
patent: 4944723 (1990-07-01), Haber et al.
patent: 4966593 (1990-10-01), Lennox
patent: 5013301 (1991-05-01), Marotta, Jr. et al.
patent: 5052403 (1991-10-01), Haber et al.
patent: 5064419 (1991-11-01), Gaarde
patent: 5085640 (1992-02-01), Gibbs
patent: 5147323 (1992-09-01), Haber et al.

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