Automatic priming of blood sets

A - Human Necessities – 61 – M

Patent

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A61M 1/36 (2006.01) B01D 61/00 (2006.01)

Patent

CA 2306829

A blood processing system including a blood processing unit (12) and a tubular arterial set (10) and a tubular venous set (14) may be primed by passing priming solution in a first direction of flow through at least one of the sets, to cause the priming solution to enter an in-line chamber (64) carried by the one set in a flow direction that is retrograde to the normal direction of blood flow through the chamber (64). Preferably, the in-line filter chamber carries a filter (65). Simulteaneously, air is removed from the one set through a port. In another, preferably simultaneous step of the process, the priming solution is passed in a second flow direction, which is reverse the first flow direction, through the blood processing unit and connected sets while continuing to remove air from the system through the port, to complete priming of the system.

On décrit un système de fractionnement du sang comprenant un appareil de conditionnement sanguin (12), un dispositif artériel tubulaire (10) et un dispositif veineux tubulaire (14). Le système peut être sensibilisé par circulation d'une solution de sensibilisation dans un premier sens d'écoulement à travers au moins un des dispositifs, pour amener ladite solution à pénétrer dans une chambre en ligne (64) qui, de préférence, comporte un filtre (65). L'air est simultanément évacué d'un des dispositifs par un orifice de sortie. Dans une autre étape du procédé, de préférence réalisée simultanément, la solution de sensibilisation est mise à circuler dans un deuxième sens d'écoulement contraire au premier sens d'écoulement, à travers l'appareil de conditionnement sanguin et les dispositifs raccordés, l'air continuant d'être évacué du système par l'orifice de sortie pour achever la sensibilisation du système.

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