Hypodermic needle shield

Details Hypodermic needle shield Hypodermic needle shield

1990-05-01

1991-05-14

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 532

Patent

active

050152408

ABSTRACT:
A safety retractable sheath covers an injection needle for protection against accidental pricking. The sheath extends from a base secured to the hub of the needle and has bellowed walls made of resilient material. It may be axially retracted toward the hub to expose the needle, and springs back to cover its entire length when released. A constricted section of the sheath beyond the tip of the needle is axially offset to prevent accidental exposure of the tip. A latching bellow segment surrounding the base allows for adjustment of the sheaths to the lengths of the needle.

REFERENCES:
patent: 3134380 (1964-05-01), Armao
patent: 3340869 (1967-09-01), Bane
patent: 3929165 (1975-12-01), Diebolt et al.
patent: 4492313 (1985-01-01), Touzani
patent: 4725267 (1988-02-01), Vaillancourt
patent: 4773458 (1988-09-01), Touzani
patent: 4850996 (1989-07-01), Cree

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