Hypodermic syringe having folding needle

Details Hypodermic syringe having folding needle Hypodermic syringe having folding needle

1991-10-09

1993-03-30

Green, Randall L.

Surgery

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

Treating material introduced into or removed from body...

604187, 604192, 128919, A61M 500, A61M 532

Patent

active

051979543

ABSTRACT:
A hypodermic syringe having a needle which folds back into a longitudinally extending channel formed on the side of the barrel of the syringe after use. A disinfectant pad may be mounted in the channel for sterilizing the needle, and lugs are provided for retaining the needle in the channel. During use, the needle is mounted to the lower end of the syringe by a supporting boss. This boss may be provided with a relatively weaker portion so that it snaps off from the barrel of the syringe in response to lateral pressure. Alternatively, there is a releasable catch which holds the boss in abutment with the end of the barrel. After the boss is separated from the end of the barrel, a pivot hinge which is mounted to the boss permits it to be folded into the protective channel.

REFERENCES:
patent: 3320954 (1967-05-01), Cowley
patent: 4858623 (1989-08-01), Bradshaw et al.
patent: 4907600 (1990-03-01), Spencer
patent: 4917243 (1990-04-01), Abrams et al.

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