Retractable needle

Details Retractable needle Retractable needle

1989-06-14

1990-08-07

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604263, 604205, A61M 532

Patent

active

049464469

ABSTRACT:
Safety hypodermic needle apparatus for disposing of a needle safely after use. The apparatus comprises a housing containing a plunger on which is mounted a needle at one end and an adapter at the other end for engaging a syringe. When the syringe is engaged and is used to push the plunger, the needle is positioned to extend from the housing ready for use. When the syringe is pushed once again after use, this causes the needle to be retracted. In another embodiment, an adapter is employed to permit the use of an evacuated tube for the collection of blood.

REFERENCES:
patent: 4194505 (1980-03-01), Schmitz
patent: 4425120 (1984-01-01), Sampson et al.
patent: 4507117 (1985-03-01), Uining et al.
patent: 4664654 (1987-05-01), Strauss
patent: 4702738 (1987-10-01), Spencer
patent: 4747831 (1988-05-01), Kolli
patent: 4767413 (1988-08-01), Haber et al.
patent: 4772272 (1988-09-01), McFarland
patent: 4840619 (1989-06-01), Hughes

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