Shielding device for a syringe needle

Details Shielding device for a syringe needle Shielding device for a syringe needle

1994-04-04

1995-01-31

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

053855574

ABSTRACT:
A retractable needle shielding device for use with a medical syringe is devised to reduce the risk of inadvertent needle strikes. The shield includes a retractable tubular body movable from a position completely shielding the needle to a position where the needle extends outward from the tubular body. The tubular body may be configured to retract over the barrel of the syringe and, in which case, should be formed of a substantially transparent material. The shield may include a collar engageable in series with and in fluid communication with the nose of the barrel and the hub of the needle. The collar preferably includes radially extending guides which are engageable with grooves disposed interiorly of the tubular body. The collar may be substantially the same length as the tubular body and, therefore, not retract over the syringe barrel. Frictional elements are provided to resist the displacement of the tubular body relative to the syringe. The tubular body is dimensioned and configured to be extensible over the length of a syringe needle and the needle cap.

REFERENCES:
patent: 2571653 (1951-10-01), Bastien
patent: 3943927 (1976-03-01), Norgren
patent: 4356822 (1982-11-01), Winstead-Hall
patent: 4631057 (1986-12-01), Mitchell
patent: 4826491 (1989-05-01), Schramm
patent: 4955868 (1990-09-01), Klein
patent: 5084030 (1992-01-01), Byrne et al.
patent: 5106380 (1992-04-01), Lobello
patent: 5998920 (1991-03-01), Johnson

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