Methods, Devices, and Systems for Providing Peritoneal Dialysis Fluid from Powdered Concentrate

A proportioning system, comprising:

• a first electrolyte concentrate container containing sufficient electrolyte concentrate to make enough dialysis fluid for multiple treatments each including multiple peritoneal fill cycles;
• a fluid circuit with an empty second electrolyte container having a volume smaller than the first electrolyte container, an empty osmotic agent container, and a mixing container containing dry osmotic agent powder;
• a controller, pumping and valve actuators, the controller being connected to control the pumping and valve actuators;
• a water source;
• the controller being configured to actuate the pumping and valve actuators to transfer water from the water source through the fluid circuit into the mixing container to form a concentrated solution of osmotic agent in the mixing container;
• the controller being configured to actuate the pumping and valve actuators to transfer the concentrate solution of osmotic agent from the mixing container to the osmotic agent container;
• the controller being configured to actuate the pumping and valve actuators to mix the electrolyte and osmotic agent concentrates with water in the mixing container to form a ready-to-use dialysate fluid.