Medical needle unit

Details Medical needle unit Medical needle unit

1989-06-12

1991-05-14

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 532

Patent

active

050152424

ABSTRACT:
A medical needle unit has a needle having a tip and insertable in and withdrawable from a patient, and a protective element for preventing accidental puncture by said tip of said needle after the withdrawal of the needle from the body. The protective element is elastic and hood-shaped and also formed so that before the withdrawal of the needle from the body the protective element surrounds the needle and is compressed to assume an accordion shape, and after the withdrawal of the needle from the body the previously compressed protective element automatically expands and covers the tip of the needle.

REFERENCES:
patent: 2847995 (1958-08-01), Adams
patent: 3134380 (1964-05-01), Armao
patent: 4725267 (1988-02-01), Vaillancourt
patent: 4782841 (1988-11-01), Lopez

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