Retractable hypodermic safety syringe

Details Retractable hypodermic safety syringe Retractable hypodermic safety syringe

1987-12-11

1988-12-13

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604195, A61M 500

Patent

active

047908220

ABSTRACT:
A disposable hypodermic syringe is provided having a needle carrier that is retractable into the barrel by the plunger after use for anti-pricking protection. Additionally the needle carrier is locked to the plunger to prevent any further use of the syringe. After the needle carrier is locked into the rectractable position, the plunger may be broken off even with the barrel so that the needle may not be accidentally pushed out of the barrel and become exposed.

REFERENCES:
patent: 3354882 (1967-11-01), Coanda
patent: 4562844 (1986-01-01), Carpenter et al.
patent: 4643200 (1987-02-01), Jennings, Jr.
patent: 4675005 (1987-06-01), DeLuccia
patent: 4692156 (1987-09-01), Haller
patent: 4747830 (1988-05-01), Gloyer

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