medical liquid treatment device, medical cassette, method for coupling a cassette and method for checking the impermeability of a medical cassette

摘要

A device for treating a medical liquid, a medical cassette, a method for coupling a cassette and a method for checking the impermeability of a medical cassette. The present invention relates to a device for treating a medical liquid comprising a machine. treatment with a coupling surface, wherein a cassette formed by a rigid portion with liquid conducting channels that are covered by a flexible sheet may be coupled to the coupling surface of the treatment machine. The present invention further relates to a corresponding medical cassette. According to the present invention, airless coupling of the flexible cassette sheet to the treatment machine is ensured by the fact that during the coupling method and / or with the coupled cassette, air can be aspirated superficially along a plane. between the flexible sheet and the coupling surface. The present invention also relates to a method for coupling the cassette and a method for checking the tightness of the cassette by means of low pressure control during aspiration.