Disposable syringe

Details Disposable syringe Disposable syringe

1979-03-09

1983-07-05

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

A61M 500

Patent

active

043912729

ABSTRACT:
The invention relates to a disposable syringe which is not able to be used more than once for carrying out an injection.
To this end, the syringe comprises means which permit the rearward return of at least a part of the piston body to be prevented when the said body occupies a position close to its position of maximum insertion in the cylinder. These means can, for example, be formed by a circular groove, in which can be engaged a peripheral rim of a resilient member integral with the body of the piston, thus causing the blocking of the said body.
Applications are particularly in human and veterinary medicines.

REFERENCES:
patent: 2375711 (1945-05-01), Vondrak
patent: 2607343 (1952-08-01), Sarver
patent: 3045674 (1962-07-01), Goldberg
patent: 3946732 (1976-03-01), Hurscham
patent: 3951146 (1976-04-01), Arias
patent: 4030498 (1977-06-01), Tompkins
patent: 4233975 (1980-11-01), Yerman

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