Fluid handling – Destructible or deformable element controlled – Destructible element
Patent
1978-02-10
1980-01-01
Schwadron, Martin P.
Fluid handling
Destructible or deformable element controlled
Destructible element
1282142, 251342, A61M 514
Patent
active
041811402
ABSTRACT:
Valve means in a flexible tube, for example, tubing for connecting blood bags, are provided, which comprises a tubular portion having a closed end, and an elongated, generally rigid member, carried on the exterior of the closed end and positioned within the flexible tube. Frangible means are provided to permit the opening of the closed end by manual manipulation of the elongated member from outside of the flexible tube. The elongated, rigid member is adapted to fit in sealing relationship within the tubular portion after opening of the closed end, to permit resealing of the valve. The elongated, generally rigid member carries longitudinal vanes to provide flow channels along its length. In accordance with this invention, a pair of said vanes in opposed relationship extends rearwardly of the end of the central portion of the rigid member, and the flexible tube defines a bore portion position to receive and resiliently hold the proposed veins when the frangible means is broken and the rigid member is separated from the tubular portion. This prevents accidental reclosing of the valve means by the rigid member moving to obstruct the tubular portion.
REFERENCES:
patent: 3158165 (1964-11-01), Benson et al.
patent: 3470893 (1969-10-01), Nelson
patent: 3685795 (1972-08-01), Caster
patent: 4055179 (1977-10-01), Manshot et al.
patent: 4080965 (1978-03-01), Phillips
Ammann David W.
Bayham Edward L.
Williams Ronald A.
Baxter Travenol Laboratories Inc.
Collins H. W.
Ellis Garrettson
Flattery Paul C.
Gerard Richard
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