Apparatus and methods for mixing additive solutions

Details Apparatus and methods for mixing additive solutions Apparatus and methods for mixing additive solutions

B - Operations, Transporting

01

D

B01D 37/00 (2006.01) A61M 1/02 (2006.01) A61M 1/34 (2006.01)

Patent

CA 2195066

A blood processing system (10) and associated method include a first variable volume chamber (12) to hold blood and a second variable volume chamber (16) to hold additive solution for blood. The system (10) and method further employ a separation device (50) to remove undesired material from blood. An actuated element (52) exerts external force simultaneously upon both first and second variable volume chambers (12, 16) to expel a first flow of blood from the first variable volume chamber (12) and a second flow of additive solution from the second variable volume chambers (16). The system (10) and method mix outside the first and second variable volume chambers (12, 16) the blood flow with the flow of additive solution to create a mixed flow comprising blood and additive solution. The system (10) and method direct the mixed flow of blood and additive solution through a filter (40) to remove undesired matter from the blood.

La présente invention se rapporte à un système (10) de traitement du sang ainsi qu'à un procédé associé, utilisant une première chambre (12) de volume variable pour contenir le sang et une seconde chambre (16) de volume variable pour contenir la solution additive pour le sang. En outre, le système (10) et le procédé utilisent un dispositif de séparation (50) por éliminer du sang les substances indésirables. Un élément actionné (52) exerce une force externe à la fois sur la première et la seconde chambres (12, 16) de volume variable afin d'expulser un premier flux de sang de la première chambre (12) de volume variable et un second flux de solution additive de la seconde chambre (16) de volume variable. Le système (10) et le procédé mélangent le flux de sang avec le flux de solution additive à l'extérieur de la première et seconde chambres (12, 16) de volume variable pour créer un flux mélangé contenant du sang et de la solution additive. Le système (10) et le procédé envoient le flux mélangé de sang et de solution additive à travers un filtre (40) pour éliminer du sang toutes substances indésirables.

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