Valve assembly

A - Human Necessities – 61 – M

Patent

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Details

A61M 39/06 (2006.01) F16K 7/08 (2006.01)

Patent

CA 2673844

A valve assembly includes a valve collar (14), a rotatable valve control member (16), and a flexible valve member (20) disposed therebetween. The valve control member and the valve collar are aligned to define an elongated passageway, and the flexible valve member is disposed along the passageway. The valve collar is structured such that at least a portion -thereof (41) is capable of radial flexure upon engagement with a mechanism (51) on the rotatable valve control member. One end of the valve member (62) is secured to the valve collar, and the other end (64) is secured to the rotatable valve control member. Upon rotation of the rotatable valve control member relative to the valve collar, the mechanism of the rotatable valve control member engages the valve collar portion in a manner such that the valve collar portion flexes in a radial direction and a tactile sensation is produced thereby, and the flexible valve member constricts from an open position to a position wherein the flexible valve member opening is at least partially closed to passage of fluid therethrough.

L'invention concerne un ensemble de soupape qui comprend un collier de soupape (14), un élément de contrôle de soupape rotatif (16), et un élément de soupape souple (20) disposé entre eux. L'élément de contrôle de soupape et le collier de soupape sont alignés pour définir un passage allongé, et l'élément de soupape souple est disposé le long du passage. Le collier de soupape est structuré de telle sorte qu'au moins une partie de celui-ci (41) peut fléchir radialement lors de la mise en contact avec un mécanisme (51) situé sur l'élément de contrôle de soupape rotatif. Une extrémité de l'élément de soupape (62) est fixée sur le collier de soupape, et l'autre extrémité (64) est fixée sur l'élément de contrôle de soupape rotatif. Lors d'une rotation de l'élément de contrôle de soupape rotatif par rapport au collier de soupape, le mécanisme de l'élément de contrôle de soupape rotatif vient en contact avec la partie de collier de soupape de manière telle que la partie de collier de soupape se déforme dans une direction radiale et une sensation tactile est ainsi produite, et l'élément de soupape souple se resserre depuis une position ouverte vers une position dans laquelle l'ouverture de l'élément de soupape souple est au moins partiellement fermée au passage de fluide à travers celle-ci.

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