Variable orifice sealing valve

Details Variable orifice sealing valve Variable orifice sealing valve

1992-01-06

1993-05-18

Fox, John C.

Valves and valve actuation

Tube compressors

251212, F16K 708

Patent

active

052113701

ABSTRACT:
A Variable orifice sealing valve made from a thin, elastic cylinder. The cylinder is retained at both ends, and one end is twisted with respect to the other end thereby reducing the fluid flow path through the center of the cylinder. The device is particularly useful for medical procedures such as in conjunction with a catheter.

REFERENCES:
patent: 1986484 (1935-01-01), Schlueter
patent: 3329390 (1967-07-01), Hulsey
patent: 3366363 (1968-01-01), Hogan et al.
patent: 4292969 (1981-10-01), Raible
patent: 4540411 (1985-09-01), Bodicky

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