Weight controlled and/or sorbent hybrid blood and peritoneal dialysis treatment systems and methods

A hybrid hemodialysis (“HD”)/peritoneal dialysis (“PD”) system comprising:

• a reservoir;
• a weigh scale operably coupled with the reservoir;
• a sorbent and/or carbon filled cartridge located upstream of the reservoir;
• at least one controller programmed to run (i) an HD treatment in which blood is pumped to a blood compartment of a dialyzer, fresh HD dialysis fluid is pumped to a dialysis fluid compartment of the dialyzer, and used HD dialysis fluid is pumped from the dialysis fluid compartment of the dialyzer, through the sorbent and/or carbon filled cartridge, to the reservoir, and at a different time (ii) a PD treatment in which fresh PD dialysis fluid is pumped to a patient and used PD dialysis fluid is pumped from the patient to the reservoir;
• a dialysis fluid pumping unit fluidly connected to the reservoir;
• an HD cassette configured for connection to the dialysis fluid pumping unit to run at least the fresh and used HD dialysis fluid portion of (i);
• and
• a PD cassette configured for connection to the dialysis fluid pumping unit to run (ii), the PD cassette being interchangeable with the HD cassette for connection to the dialysis fluid pumping unit.

A hybrid hemodialysis (“HD”)/peritoneal dialysis (“PD”) system comprising:

• a reservoir;
• at least one controller programmed to run (i) an HD treatment in which blood is pumped to a blood compartment of a dialyzer, fresh HD dialysis fluid is pumped to a dialysis fluid compartment of the dialyzer, and used HD dialysis fluid is pumped from the dialysis fluid compartment of the dialyzer to the reservoir, and at a different time (ii) a PD treatment in which fresh PD dialysis fluid is pumped to a patient and used PD dialysis fluid is pumped from the patient to the reservoir;
• a pumping unit fluidly connected to the reservoir;
• an HD cassette configured for connection to the pumping unit to run at least the fresh and used HD dialysis fluid portion of (i);
• and
• a PD cassette configured for connection to the pumping unit to run (ii), the PD cassette being interchangeable with the HD cassette for connection to the pumping unit.