Patent ID: 8506522

Claim:
A peritoneal dialysis method for operating a peritoneal dialysis system, the system including a stepper motor housed by an enclosure, a pump head in operable communication with the stepper motor, a disposable unit including at least one flexible membrane attached to a rigid piece, the enclosure configured to receive the disposable unit such that the stepper motor can move the pump head towards and away from the flexible membrane, and a graphical user interface including a display device, the method comprising: displaying a plurality of peritoneal dialysis (“PD”) screens on the display device, a first area of the display device dedicated to a plurality of mode selection icons, each mode selection icon dedicated to a single mode, the area and the mode selection icons displayed on each of the peritoneal dialysis screens; temporarily displaying on a second area of the display device, exclusively as a result of a user selection of one of the mode selection icons, at least one of a graphic and text specific to a selected corresponding mode, the modes including a therapy mode, a parameter adjustment mode and a log mode; and causing, upon selection of one of the modes, the display device to operate in the selected mode, the therapy mode including a graphic pictorially discerning between a PD fill cycle and a PD drain cycle and pictorially indicating how far the fill or drain cycle has proceeded.