Safety syringe with collapsible needle guard

Details Safety syringe with collapsible needle guard Safety syringe with collapsible needle guard

1991-02-14

1993-06-15

Yasko, John D.

Textiles: knitting

604263, A61M 532

Patent

active

052193381

ABSTRACT:
A safety syringe having an elongated tubular barrel, a needle and a tubular protective sheath having one end affixed to the external surface of the barrel and normally encompassing the needle. The protective sheath has accordion-like circumferential pleats formed therein, the sheath normally extending over a substantial portion of the barrel and the needle to thereby prevent inadvertent contact of the needle with the user, the sheath being retractable to permit the needle to be used for subcutaneous dispensation of liquid contents from the barrel.

REFERENCES:
patent: 3134380 (1964-05-01), Armao
patent: 4804371 (1989-02-01), Vaillancourt
patent: 4846809 (1989-07-01), Sims
patent: 4894055 (1990-01-01), Sudnak
patent: 4911694 (1990-03-01), Dolan
patent: 4915697 (1990-04-01), DuPont
patent: 4927416 (1990-05-01), Tankiel
patent: 4932947 (1990-06-01), Cardwell
patent: 4943281 (1990-07-01), Kothe

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