Valve mechanism

Details Valve mechanism Valve mechanism

1995-06-20

1996-12-17

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604 88, 604283, 604905, 604249, A61M 500

Patent

active

055848087

ABSTRACT:
A valve which can be used to facilitate needleless transfer of medication from the container to a patient. A slidable actuator is engaged by the nozzle portion of a syringe and the tapered lead portion of the slide is forced into the container through a pre-slit elastomeric membrane. The membrane is relatively thick, preferably between 25 and 75% the width dimension of the membrane and, more preferably, between 40 and 50% of that dimension. The thick membrane is durable enough to withstand repeated usage and damage resistant enough to permit use with needled syringes.

REFERENCES:
patent: 5062836 (1991-11-01), Wendell
patent: 5242393 (1993-09-01), Brimhall et al.
patent: 5350362 (1994-09-01), Stouder, Jr.

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