Integrated cassette for valving, pumping and controlling...

A - Human Necessities – 61 – M

Patent

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Details

A61M 1/36 (2006.01) A61M 1/38 (2006.01) A61M 1/30 (2006.01)

Patent

CA 2272304

An apparatus controls movement of fluids during an extracorporeal blood treatment session. A hollow enclosure has a plurality of fluid input ports for receiving fluids into the enclosure and a plurality of fluid output ports for expelling fluids from the enclosure. A first roller pump tube is provided for pumping at least one of the fluids through the hollow enclosure during the photopheresis treatment session. Internal fluid passageways disposed within the hollow enclosure are provided for coupling together the fluid input ports, the fluid output ports and the roller pump. At least one internal valve is disposed within the hollow enclosure for controlling movement of the fluid within the hollow enclosure.

La présente invention concerne un appareil permettant de réguler le mouvement des fluides au cours d'une session de traitement de circulation extra-corporelle. Une enceinte creuse comporte une pluralité de ports d'entrée de fluide permettant de recevoir les fluides dans l'enceinte et une pluralité de ports de sortie de fluide permettant d'expulser les fluides de l'enceinte. Un premier tube de pompe à rouleau permet de faire passer par pompage au moins l'un des fluides dans l'enceinte creuse au cours de la session de traitement de photophérèse. Des passages internes de fluide disposés dans l'enceinte creuse permettent de coupler les ports d'entrée de fluide, les ports de sortie de fluide et la pompe. Une soupape, au moins, est disposée dans l'enceinte creuse de façon à réguler le mouvement du fluide à l'intérieur de l'enceinte creuse.

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