The invention relates to a cassette module forprocessing blood and therapeutic fluids in anextracorporeal blood treatment, dialysis or infusiontechnology, comprising a base body (302), with a firstside and a second side, fluid channels integrated intothe base body, a receiving unit (304) to receive acentrifugal pump means for delivering fluids,characterized in that at least some of the fluidchannels are arranged on a first side of the base body,and the receiving unit for the centrifugal pump meansis arranged on the second side, and the receiving unitfor the centrifugal pump means is in fluid connectionwith the fluid channels on the first side duringoperation.