Prefilled syringe

Details Prefilled syringe Prefilled syringe

1988-07-08

1990-06-26

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604195, 604198, A61M 5178

Patent

active

049368303

ABSTRACT:
A prefilled syringe is disclosed which comprises a syringe body with a slidable piston defining a compartment therein containing a substance to be injected. An injection needle is arranged for communicating with said compartment through said piston and sleeve means are provided around the needle in slidable relationship with said syringe body. A compression spring is urging the sleeve means in a position in which the same surround the tip of the needle and the syringe body is closed before and after an injection.

REFERENCES:
patent: 3306290 (1967-02-01), Weltman
patent: 3587575 (1971-06-01), Lichtenstein
patent: 4795432 (1989-01-01), Karczmer
patent: 4838863 (1989-06-01), Allard et al.

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