Peritoneal dialysis device

Peritoneal dialysis device (10, 106) comprising (a) a balancing arrangement with two chambers (32, 34), which can be switched into a filling or emptying phase by a valve arrangement (46-52), (b) a peritoneal dialysis fluid source (12), which is connected to the balancing arrangement through an introduction line (16, 20, 22, 24), (c) a catheter line (42) that starts from the balancing arrangement and can be connected to a peritoneal catheter, (d) a discharge line (22, 24, 20, 62) starting from the balancing arrangement, (e) a pump arrangement (60, 108, 110) for transporting fresh or used peritoneal dialysis fluid, (f) a control unit (82) for controlling the valve arrangement (46-52) and the pump arrangement (60, 108, 110), (g) a single balancing chamber (26), which is separated through a movable liquid-impermeable membrane (30) into the two balancing chamber halves (32, 34), the balancing chamber halves (32, 34) being connected alternately through the valve arrangement (46-52) either with the source for the peritoneal dialysis fluid (12) in the introduction operation or to the discharge line in the removal operation, and, on the other hand, to catheter line (42) in the flow connection, (h) a first pressure sensor (56) arranged in the catheter line (42), wherein upon the pressure-dependent signal of this sensor, the control unit (82) inactivates the pump when a predetermined pressure valve is reached, and wherein a device is provided for determining the complete filling of the balancing chamber, upon the signal of which the control unit (82) switches the valve arrangement cyclically.