Safety syringe apparatus

Details Safety syringe apparatus Safety syringe apparatus

1990-06-21

1991-06-25

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604110, 604220, A61M 532

Patent

active

050263544

ABSTRACT:
An apparatus to prevent spread of transmittable diseases, including a syringe defined by a cylindrical barrel containing a reciprocatable plunger therewithin. The plunger is provided with mechanical communication to a needle chamber mounted within a needle body of the barrel. Subsequent to filling and usage of the cavity defined within the barrel, the plunger is retracted to space a lower locking skirt above an upper locking skirt, wherein the locking skirts are arranged to prevent projection of the plunger back into the barrel, and wherein the plunger by mechanical connection to the needle chamber retracts the needle interiorly of the barrel preventing its reuse.

REFERENCES:
patent: 4233975 (1980-11-01), Yerman
patent: 4747837 (1988-05-01), Hauck
patent: 4846796 (1989-07-01), Carrell et al.
patent: 4850968 (1989-07-01), Romano
patent: 4921486 (1990-05-01), Dechellis et al.
patent: 4947863 (1990-08-01), Haber et al.

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