Abstract: The invention relates to a method and to a device for supplying a dialysis device with dialysate, and to a dialysis device comprising a device for supplying the dialysis device with dialysate. For producing dialysate, a container 13 filled with a pulverulent dialysate concentrate K is provided, the amount of dialysate concentrate in the container being set in such a way that an amount of dialysate sufficient for a specified number of dialysis treatments can be produced using the dialysate concentrate. The method according to the invention and the device according to the invention make it possible to align the amount K2 of concentrate in the container 13 and the planned consumption amount, which is dependent on the prescription from the doctor and the treatment parameters established by the machine. After the individual dialysis treatments have been carried out, it is continuously monitored whether the amount of concentrate is sufficient.

Abstract: The present invention relates to a device and a method for controlling an extracorporeal blood treatment device, in particular a hemodialysis device that has a dialyzer, which is divided by a semi-permeable membrane into a blood chamber and a dialysis chamber, a blood pump for conveying blood through the blood chamber at a defined blood flowrate Qb, and a dialysis pump for conveying dialysis fluid through the dialysis chamber at a defined dialysis flowrate Qd. The control device and method according to the present invention for a hemodialysis device are based on the fact that, for different blood flow rates, in each case pre-defined during the blood treatment, the dialysis flowrates are determined at which a pre-defined clearance or dialysance is maintained with the pre-defined blood flowrates and/or that, for different dialysis flowrates in each case pre-defined during the blood treatment, the blood flowrates are determined at which the predefined clearance of dialysance is maintained.