Safety needle

Details Safety needle Safety needle

1988-02-22

1989-07-25

Hindenburg, Max

Surgery

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

Treating material introduced into or removed from body...

604192, 604263, A61M 532

Patent

active

048509965

ABSTRACT:
A sheath is provided as a cover over a hollow needle for use by medical personnel in combination with a syringe. When needle is not in use, the sheath protects medical personnel from accidental scraping or injections. During use in injections, the sheath is retracted by skin contact into a chamber attached to the proximal end of the needle. The sheath can also be capped or sealed when not in use to maintain safe conditions until actual injection use on a patient. The sheath may also be restrained from retraction during shipping or rough handling. The sheath is made from transparent material to not impede accurate injection of the needle into the patient. In use, the sheath further maintains sterile conditions at the point of injection by precluding airborne contamination.

REFERENCES:
patent: 2674246 (1954-04-01), Bower
patent: 2876770 (1959-03-01), White
patent: 3356089 (1967-12-01), Francis
patent: 4416663 (1983-11-01), Hall
patent: 4417887 (1983-11-01), Koshi
patent: 4507118 (1985-03-01), Dent
patent: 4636201 (1987-01-01), Ambrose et al.
patent: 4639249 (1987-01-01), Larson
patent: 4642099 (1987-02-01), Phillips et al.
patent: 4660570 (1987-04-01), Dombrowski
patent: 4664654 (1987-05-01), Strauss

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