Needle safety mechanism

Details Needle safety mechanism Needle safety mechanism

1992-07-30

1993-09-21

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 500

Patent

active

052464288

ABSTRACT:
A safety mechanism for a hypodermic needle comprises a base adapted to be fixed with respect to the needle and a tubular sheath mounted for relative longitudinal movement with respect to the base between a first position for covering the needle and a second position wherein the needle can at least partially protrude from the outer end of the sheath. A latch mechanism cooperative between the base and the sheath is selectively repeatedly shiftable between a latching mode wherein the sheath is latched in its first position, and a free mode wherein the sheath is reciprocable between its first and second positions, the latch including detents for releasably retaining the latch in its free mode.

REFERENCES:
patent: 4507118 (1985-03-01), Dent
patent: 4664654 (1987-05-01), Strauss
patent: 4894055 (1990-01-01), Sudnek
patent: 4900311 (1990-02-01), Stern et al.
patent: 4923447 (1990-05-01), Morgan
patent: 4946446 (1990-08-01), Vadher
patent: 4966592 (1990-10-01), Burns et al.
patent: 4973316 (1990-11-01), Dysarz
patent: 5013301 (1991-05-01), Marotta, Jr. et al.
patent: 5104385 (1992-04-01), Huband

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