Method and apparatus for priming an extracorporeal blood...

A - Human Necessities – 61 – M

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A61M 1/16 (2006.01) A61M 1/34 (2006.01) A61M 1/36 (2006.01)

Patent

CA 2683051

A method and apparatus for priming an extracorporeal blood circuit, in which the patient end of an arterial line (79) is connected to a first discharge port (61), and the patient end of a venous line (87) is connected to a second discharge port (62). The two discharge ports are connected to a used dialysate line which connects a dialyser (33) to a drain. The arterial and venous lines are filled with a priming fluid, while the air contained in the arterial and venous lines is evacuated partly through the first discharge port and partly through the second discharge port. Two check valves (65, 66) prevent flow from the used dialysate line towards the two discharge ports. The invention reduces the risk of errors on the part of an operator readying the priming configuration, as well as the risk of contamination of the extracorporeal circuit during the priming phase.

L'invention concerne un procédé et un dispositif d'amorçage d'un circuit sanguin extracorporel. L'extrémité côté patient d'une ligne artérielle (79) est reliée à un premier orifice d'évacuation (61), et l'extrémité côté patient d'une ligne veineuse (87) est reliée à un deuxième orifice d'évacuation (62). Les deux orifices d'évacuation sont reliés à une ligne de dialysat usagé connectant un dialyseur (33) à un drain. La ligne artérielle et la ligne veineuse sont remplies d'un liquide d'amorçage tandis que l'air contenu dans la ligne artérielle et la ligne veineuse est évacué partiellement au moyen du premier orifice d'évacuation et partiellement au moyen du deuxième orifice d'évacuation. Deux clapets antiretour (65, 66) empêchent l'écoulement de flux de la ligne de dialysat usagé vers les deux orifices d'évacuation. L'invention permet de réduire le risque d'erreur de la part d'un utilisateur préparant la configuration d'amorçage, ainsi que le risque de contamination du circuit extracorporel au cours de la phase d'amorçage.

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