Elastomeric needle shield and hub-cap

Details Elastomeric needle shield and hub-cap Elastomeric needle shield and hub-cap

1994-08-22

1996-08-27

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

055495680

ABSTRACT:
I describe a an elastomeric tube whose leading end holds a conical puncture-resistant needle shield and whose trailing end is attached to the conical hub of a hollow needle. A removable cylindric hub-cap initially covers the elastomeric tube surrounding the needle. The purpose of the assembly is to sustain needle sterility before use and to prevent accidental needle sticks after use for transfering fluids. The user attaches the assembly to a Luer-Lok on a syringe, on the leading end of tubing or in a pre-assembled form on a Vacutainer.TM. needle. He/she removes the cylindric hub-cap and inserts the needle tip into a cap on a fluid container or into a patient. The conical needle shield slides back over the shaft of the needle, while the elastomeric tube shortens like an accordion. When the user retracts the needle from the container or from a patient, elastic recoil in the tube causes the conical needle shield to slide back and automatically re-shield the tip of the needle.

REFERENCES:
patent: 4316462 (1982-02-01), Baker
patent: 4735618 (1988-04-01), Hagen
patent: 4915697 (1990-04-01), DuPont
patent: 4964866 (1990-10-01), Szwarc
patent: 4998922 (1991-03-01), Kuracina et al.
patent: 5092852 (1992-03-01), Poling
patent: 5122123 (1992-06-01), Vaillancourt
patent: 5147325 (1992-09-01), Mitchell et al.
patent: 5295972 (1994-03-01), Mischenko
patent: 5312366 (1994-05-01), Vailancourt

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