Hypodermic needle cannula guard

Details Hypodermic needle cannula guard Hypodermic needle cannula guard

1990-04-20

1991-08-06

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

050374010

ABSTRACT:
A hypodermic needle cannula guard adapted to receive the cannula through an open slot and labyrinth passage into the interior of the guard or through a closed slit which the hypodermic needle cannula can enter through, the slit reclosing after passage of the cannula into the guard. The labyrinth passage inhibits exit of the cannula from the guard upon entry and the closed slit effectively encapsulates the cannula once it is entered into the guard. After entry of the cannula into the interior of the guard, the guard is pushed towards the hub of the hypodermic needle until the entry end of the guard and the hub of the needle are engaged and to secure the guard to the hypodermic needle.

REFERENCES:
patent: 2110123 (1938-03-01), Eisele
patent: 2997043 (1961-08-01), Flynn
patent: 3537452 (1970-03-01), Wilks
patent: 4040419 (1977-08-01), Goldman
patent: 4643722 (1987-02-01), Smith, Jr.
patent: 4664259 (1987-05-01), Landis
patent: 4747836 (1988-05-01), Luther
patent: 4917243 (1990-04-01), Abrams et al.

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