Hypodermic syringe with a safe needle cap

Details Hypodermic syringe with a safe needle cap Hypodermic syringe with a safe needle cap

1995-12-18

1996-12-10

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604192, 604263, A61M 500

Patent

active

055825940

ABSTRACT:
A hypodermic syringe wherein the neck of the barrel has a toothed portion raised around an inside wall thereof for passing the needle cannula and sloping in one direction; the needle cap has a plurality of toothed portions spaced around the periphery at different elevations and respectively sloping in one direction; the toothed portions of the needle cap are forced into engagement with the toothed portion of the neck of the barrel and stopped by it from backward movement when the needle cap is invertedly inserted into the neck of the barrel to seal the used needle cannula inside the barrel.

REFERENCES:
patent: 4710170 (1987-12-01), Haber et al.
patent: 5041099 (1991-08-01), Gelabert
patent: 5346475 (1994-09-01), Gregorio
patent: 5360423 (1994-11-01), McCormick

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