Safety cap assembly for needles

Details Safety cap assembly for needles Safety cap assembly for needles

1995-11-06

1997-05-20

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604192, 604198, A61M 500

Patent

active

056308035

ABSTRACT:
A safety needle cap assembly for needles is described. In place of the usual safety cap which requires a doctor, dentist or nurse to manually place it in position on a used syringe needle, the safety needle cap assembly of the invention automatically caps the used needle the instant the needle is withdrawn from the patient. An elastic sheath or spring attached to a safety needle cap is kept under tension, retracting the cap and allowing the needle tip to be exposed. Once used and removed from the patient, the elastic tension is released, causing the safety needle cap to snap over the used needle tip automatically, without any operator assistance. The designs of the safety needle cap assembly as described virtually preclude accidental re-emergence of the used needle tip during disposal of the needle-cap assembly.

REFERENCES:
patent: 4139009 (1979-02-01), Alvarez
patent: 5092851 (1992-03-01), Ragner
patent: 5242418 (1993-09-01), Weinstein
patent: 5250031 (1993-10-01), Kaplan et al.
patent: 5295972 (1994-03-01), Mischenko

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