Single-use hypodermic syringe

Details Single-use hypodermic syringe Single-use hypodermic syringe

1993-06-14

1995-02-14

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

053890752

ABSTRACT:
The single-use hypodermic syringe has a body in the form of a hypodermic syringe cylinder with a needle connection on the front. A piston in the cylinder draws in and discharges liquid. The plunger is connected to the piston by means of a collar which permits withdrawal of the piston. When the plunger returns the piston, a spring deflects to release the collar so that a second withdrawal stroke is prevented.

REFERENCES:
patent: 4973308 (1990-11-01), Borras et al.
patent: 5149323 (1992-09-01), Colonna
patent: 5201709 (1993-04-01), Capra et al.

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