Pressure actuated safety valve with spiral flow membrane

Details Pressure actuated safety valve with spiral flow membrane Pressure actuated safety valve with spiral flow membrane

A - Human Necessities

61

M

A61M 39/22 (2006.01) A61M 25/00 (2006.01) A61M 39/24 (2006.01) B65D 47/20 (2006.01)

Patent

CA 2551140

A pressure activated valve comprises a valve housing defining a lumen for receiving bodily fluids therein and a flexible membrane disposed in the valve housing. The flexible membrane includes a slit extending therethrough so that the flexible membrane may be moved between an open and a closed configuration based on fluid pressure within the lumen. A nonthrombogenic coating may be formed on fluid contacting surfaces of the flexible membrane.

La présente invention concerne une valve de sécurité actionnée par la pression. Elle comprend un logement de valve définissant une lumière de façon à y recevoir des fluides anatomiques, et une membrane souple disposée dans le logement de valve. La membrane souple est traversée d'une fente permettant à la membrane souple d'évoluer entre une configuration ouverte et une configuration fermée selon la pression de fluide à l'intérieur de la lumière. Les surfaces de la membrane souple en contact avec les fluides peuvent être garnies d'un antithrombotique.

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