Twist valve

Details Twist valve Twist valve

1999-06-17

2000-12-05

Weiss, John G.

Surgery

Container for blood or body treating material, or means used...

Bag type

604533, 604905, A61B 1900

Patent

active

061560251

ABSTRACT:
A twist valve for use in a fluid delivery system is provided for selectively allowing fluid flow and blocking fluid flow therethrough. The twist valve is in communication with a pre-filled flexible container and includes a proximal part and a distal part each having a fluid inlet and a fluid outlet. The proximal and distal parts are equipped with cylindrical helical surfaces which allow them to move toward or away from each other when a twisting force is applied to them. The fluid outlet of the proximal part is blocked with a stopper in the distal part when the twist valve is in the closed position, and is unblocked by the stopper when the twist valve is in the open position.

REFERENCES:
patent: 4114617 (1978-09-01), Turner
patent: 4573974 (1986-03-01), Ondetti
patent: 4583643 (1986-04-01), Sanderson
patent: 4967941 (1990-11-01), Beck
patent: 5025829 (1991-06-01), Edwards
patent: 5360413 (1994-11-01), Leason
patent: 5391150 (1995-02-01), Richmond
patent: 5573516 (1996-11-01), Tyner
patent: 5651776 (1997-07-01), Appling et al.
patent: 5728087 (1998-03-01), Niedospial
patent: 5738671 (1998-04-01), Niedospial, Jr. et al.
patent: 5762646 (1998-06-01), Cotter
patent: 5806551 (1998-09-01), Meloul et al.
patent: 5810398 (1998-09-01), Matkovich
patent: 5820614 (1998-10-01), Erskine et al.
patent: 5833213 (1998-11-01), Ryan

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