Out-dwelling slit valve and variable control for controlling...

A - Human Necessities – 61 – M

Patent

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A61M 5/00 (2006.01) A61M 5/168 (2006.01) A61M 16/20 (2006.01) A61M 39/22 (2006.01) A61M 39/24 (2006.01) F16K 7/00 (2006.01) F16K 17/18 (2006.01)

Patent

CA 2276067

This invention is an adjustable medical out-dwelling, normally closed pressure responsive slit valve (20) flow control for fluid (liquids and gases), and related methods wherein a diaphragm (98) having a slit (102) therein may be flexed both distally, and proximally by respective pressure differentials across the diaphragm. One or more adjustment members (82, 74) are provided on one or both sides of the diaphragm to selectively adjust the amount of pressure differential required to open the slit valve.

Cette invention se rapporte à un dispositif de régulation de débit de fluides (liquides et gaz) par valve à fente (20), à usage médical, réglable, sensible à la pression, non effractive, fermée en fonctionnement normal, ainsi qu'à des procédés associés. Ladite valve est dotée d'une membrane (98) munie d'une fente (102) et susceptible de fléchir à la fois en position distale et en position proximale sous l'effet de différentiels de pression respectifs appliqués à ladite membrane. Un ou plusieurs éléments de réglage (82, 74) sont disposés sur l'un des côtés, ou des deux côtés, de la membrane dans le but de permettre un réglage sélectif du différentiel de pression requis pour l'ouverture de la valve à fente.

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