Peritoneal dialysis system using disinfection

2:

• The PD system of claim 1, wherein the dialysis fluid pump includes a reusable pump body that accepts PD fluid and water for pumping.

3:

• The PD system of claim 1, wherein the dialysis fluid heater is an inline heater that includes a reusable heater body that accepts PD fluid and water for heating.

5:

• The PD system of claim 1, which includes a water tank for holding disinfection water for the disinfection sequence.

6:

• The PD system of claim 5, further comprising at least one level sensor positioned and arranged to detect a level of water in the water tank, the at least one level sensor providing an output to the control unit, the control unit configured to use the output to monitor a disinfection water level within the water tank.

7:

• The PD system of claim 6, further comprising a water pump positioned and arranged to pump the disinfection water from the water tank to the cleaning cartridge and back to the water tank.

8:

• The PD system of claim 1, wherein the cleaning cartridge is a sorbent cartridge that holds at least activated carbon.

9:

• The PD system of claim 1, wherein the water cleaning sequence is configured to pump disinfection water that has been used for disinfection at least one time through the cleaning cartridge for use in a subsequent disinfection sequence.

10:

• The PD system of claim 1, further comprising a plurality of sensors, wherein the plurality of sensors comprises at least one of a pressure sensor, a temperature sensor, or a conductivity sensor.

11:

• The PD system of claim 1, further comprising a user interface controlled by the control unit.

12:

• The PD system of claim 11, wherein the control unit is further configured to monitor a number of service hours or a number of treatments that the cleaning cartridge has performed and prompt a patient or caregiver via the user interface to replace the cleaning cartridge after a predetermined number of service hours or treatments.

14:

• The PD system of claim 13, further comprising a disposable filter set configured to interface between the reusable patient line and a patient's transfer set, the disposable filter set providing a final stage of PD fluid filtration prior to delivery to the patient.

15:

• The PD system of claim 14, wherein the reusable patient line is single lumen and the disposable filter set includes a check valve oriented to force fresh dialysis fluid through a sterilizing grade filter of the disposable filter set.

16:

• The PD system of claim 13, further comprising at least one spool located within the housing, the at least one spool configured (i) to automatically retract the reusable patient line when the reusable patient line is connected to the patient line connector, or (ii) to automatically retract a reusable drain line when the reusable drain line is connected to a drain line connector.

17:

• The PD system of claim 13, further comprising a user interface controlled by the control unit.

18:

• The PD system of claim 17, wherein the control unit is further configured to monitor a number of service hours or a number of treatments that the cartridge has performed and prompt a patient or caregiver via the user interface to replace the cartridge after a predetermined number of service hours or treatments.

19:

• The PD system of claim 13, further comprising a water tank for holding disinfection water for the disinfection sequence.

20:

• The PD system of claim 19, further comprising at least one level sensor positioned and arranged to detect a level of water in the water tank, the at least one level sensor providing an output to the control unit, the control unit configured to use the output to monitor a disinfection water level within the water tank.