System for controlling a medical treatment, for example dialysis, using a preferably heated treatment fluid, comprising means (18,28) for controlling the flow of the fluid through the system and means (36,37) for connecting the system to a treatment device, for example a dialyzer (33), whereby disinfection and/or sterilization and/or other cleansing of the system is effected with the aid of a liquid which is made to flow along the same path as the treatment fluid, except that it is diverted past the treatment device by means of a so called by-pass arrangement (38-41 and/or 34,35). The system according to the invention is characterized by means for connecting a cartridge or other vessel (1' ,1'' or 1''') to a conduit (1,12,17) in the system, wherein the cartridge or vessel contains a soluble concentrate in liquid or powder form, preferably powder form, which achieves or at least aids the said cleansing, and by means (1a) for supplying water or another solvent to said conduit (1) to flow through and dissolve the concentrate. IMAGE
展开▼
