A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 1/14 (2006.01) A61M 1/28 (2006.01)
Patent
CA 2699204
The present invention relates to an apparatus for treating a medical liquid which includes a treatment machine having a 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. The invention furthermore relates to a corresponding medical cassette. In accordance with the invention, an air-free coupling of the flexible film of the cassette to the treatment machine is ensured in that air can be sucked out areally along a plane between the flexible film and the coupling surface during the coupling process and/or with a coupled cassette. The invention equally includes a method for coupling the cassette and a method for checking the leaktightness of the cassette via the vacuum control of the air suction.
L'invention concerne un dispositif destiné au traitement d'un fluide médical, dispositif comprenant une machine de traitement présentant une surface d'accouplement sur laquelle peut s'appliquer une cassette formée d'une partie dure pourvue de canaux conducteurs de liquide qui sont recouverts d'un film souple. L'invention concerne en outre une cassette médicale correspondante. L'invention est caractérisée en ce qu'un accouplement exempt d'air du film souple de la cassette avec la machine de traitement est assuré grâce au fait que pendant le processus d'accouplement et/ou lorsque la cassette est assemblée, l'air peut être aspiré, à plat, le long d'un plan entre le film souple et ladite surface d'accouplement. En outre, l'invention concerne un procédé d'accouplement de la cassette, ainsi qu'un procédé de contrôle de l'étanchéité de la cassette, au niveau de la régulation de la dépression, lors de l'aspiration de l'air.
Guenther Goetz
Haecker Juergen
Koehler Markus
Lauer Martin
Mueller Ralf
Fresenius Medical Care Deutschland Gmbh
Shapiro Cohen
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