Apparatus for the treatment of a medical liquid and method...

A - Human Necessities – 61 – M

Patent

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A61M 1/16 (2006.01) A61M 1/28 (2006.01)

Patent

CA 2741725

The invention relates to an apparatus for treating a medical liquid which includes a treatment machine having a coupling surface and a flexible mat arranged on the coupling surface, with a cassette made of a hard part having liquid-conducting passages which are covered by a flexible film being able to be coupled to the coupling surface of the treatment machine via the flexible mat. In accordance with the invention, the apparatus for making possible the monitoring of a fault- free coupling to the cassette at the coupling surface is made such that a pressure difference of the pressure can be determined between the cassette and the flexible mat and of the pressure between the mat and coupling surface. The invention furthermore relates to a method for the checking of the leak tightness of the aforesaid apparatus.

L'invention porte sur un dispositif destiné au traitement d'un liquide médical, comprenant une machine de traitement dotée d'une surface de couplage et d'un mat souple qui est disposé sur la surface de couplage. Une cassette constituée d'une pièce rigide et comportant des canaux qui assurent le transport du liquide et sont recouverts d'une feuille souple, peut être couplée par l'intermédiaire du mat souple à la surface de couplage de la machine de traitement. Selon l'invention, le dispositif permettant la surveillance d'un couplage exempt d'anomalie à la cassette est conçu, au niveau de la surface de couplage, de façon à permettre la détermination d'une différence de pression entre la pression cassette/mat souple et la pression mat/surface de couplage. L'invention porte en outre sur un procédé de vérification de l'étanchéité dudit dispositif.

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