Method for emptying a blood circuit of an apparatus for the...

A - Human Necessities – 61 – M

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

Patent

CA 2366410

A method for emptying a blood circuit of an apparatus for the extracorporeal treatment of blood after interrupting a treatment session, the apparatus comprising: a blood treatment device (4) having a first and a second compartment (5, 6) separated from one another by a semi permeable membrane (7), an arterial pipe (8) connected to an inlet of the first compartment (5), a venous pipe (9) connected to an outlet of the first compartment (5) and a second end, a used liquid circuit (6, 21) having a drain pipe (21) connected to an outlet of the second compartment (6), whereby the method comprises the steps of: closing on itself a blood circuit (2) comprising the arterial pipe (8), the first compartment (5) of the blood treatment apparatus (4) and the venous pipe (9) in order to form a closed loop circuit, after the arterial and venous pipes (8, 9) have been disconnected from the vascular system of the patient, the blood circuit containing a liquid, transferring the liquid contained in the closed loop circuit into the used liquid circuit (6, 21), and draining the liquid transferred into the used liquid circuit (6, 21) using the drain pipe (21).

Procédé servant à vider le circuit sanguin d'un dispositif de traitement extracorporel du sang après l'interruption d'une session de traitement. Ce dispositif comprend: une unité (4) de traitement du sang possédant un premier et un deuxième compartiment (5, 6) séparés l'un de l'autre par une membrane semi-perméable (7), un conduit artériel (8) relié à une entrée du premier compartiment (5), un conduit veineux (9) relié à une sortie de ce premier compartiment (5) et à une deuxième extrémité, un circuit de liquide usé (6, 21) possédant un conduit de drainage (21) relié à une sortie du deuxième compartiment (6). Ce procédé consiste à: fermer sur lui-même un circuit sanguin (2) composé du conduit artériel (8), du premier compartiment (5) du dispositif de traitement (4) et du conduit veineux (9), de manière à créer un circuit fermé, après avoir coupé les conduits artériels et veineux (8, 9) du système vasculaire du patient, le circuit sanguin contenant un liquide; transférer le liquide contenu dans le circuit fermé dans le circuit de liquide usé (6, 21) et drainer le liquide transféré dans le circuit de liquide usé (6, 21) au moyen du conduit de drainage (21).

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