Prepackaged, injectable pharmaceutical and hypodermic needle com

Details Prepackaged, injectable pharmaceutical and hypodermic needle com Prepackaged, injectable pharmaceutical and hypodermic needle com

1984-04-09

1985-10-22

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604212, A61M 500

Patent

active

045486018

ABSTRACT:
A prepackaged, injectable pharmaceutical hypodermic needle has semi-rigid outer container, supported within which is a substantially non-resiliant inner container containing a pre-measured dose of the pharmaceutical. A cannula extending through and fixed with respect to the outer container is adapted to pierce the inner container for injection of the pharmaceutical upon manual collapsing or squeezing of the outer container. Air flow openings in the outer container permit the flow of air into the cavity between the inner and outer containers upon manual release during successive manual compression or squeezing operations, thereby obviating the possibility of negative air pressure being exerted upon the inner container.

REFERENCES:
patent: 2618263 (1952-11-01), Lakso et al.
patent: 2696213 (1954-12-01), Smith
patent: 2771879 (1956-11-01), Salisbury, Jr.
patent: 4059109 (1977-11-01), Tischlinger

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