Safety syringe

Details Safety syringe Safety syringe

1994-07-01

1996-01-16

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

128919, 604110, A61M 532, A61M 500

Patent

active

054844215

ABSTRACT:
A blood sampling aspirator used to withdraw blood into vials for subsequent tests presents a hazard to personnel when withdrawing the hypodermic syringe because of the exposed needle. This invention encompasses an integral syringe design that allows for removal of the needle from the syringe even before the needle is withdrawn from the site of the needle puncture. The needle is contained within a ballistic type component which is withdrawn from the puncture site and from the syringe through the action of component elastic deflections and a force toggle mechanism without the use of coil spring devices. The needle is forcibly propelled into a tubular storage container toward the back of the syringe (toward the syringe operator and away from the patient). After the needle is propelled into the container it offers full protection from inadvertent needle punctures or scratches. The syringe, less the needle, can, if desired, be reused and another needle installed inside the syringe.

REFERENCES:
patent: 2888923 (1959-06-01), Da Cunha Reis
patent: 4904242 (1990-02-01), Kulli
patent: 4974603 (1990-12-01), Jacobs
patent: 5069225 (1991-12-01), Okamura
patent: 5125898 (1992-06-01), Kaufold, Jr. et al.
patent: 5211628 (1993-05-01), Marshall
patent: 5211629 (1993-05-01), Pressly et al.
patent: 5279580 (1994-01-01), Wallingford
patent: 5338311 (1994-08-01), Mahurkar

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