Peritoneal dialysis systems and related devices and methods

A peritoneal dialysis system comprising a base peritoneal dialysis system and a peritoneal dialysis fluid exchange system that operates independently of the base peritoneal dialysis system, wherein

• the base peritoneal dialysis system includes
• a first disposable unit including a first patient line configured to be connected to a patient, and
• a peritoneal dialysis device including
• a compartment configured to receive the first disposable unit, and
• at least one pump arranged so that when the first disposable unit is disposed within the compartment, the pump cooperates with the first disposable unit to deliver dialysate to and drain dialysate from a peritoneal cavity of the patient via the first patient line of the first disposable unit,
• the peritoneal dialysis fluid exchange system includes
• a second disposable unit including a second patient line configured to be connected to the patient such that fluid can be delivered to and drained from the peritoneal cavity of the patient via the second patient line, and
• a fluid exchange device including
• a compartment configured to receive the second disposable unit, and
• a data exchange interface operable to transfer patient treatment data from the peritoneal dialysis fluid exchange system to the base peritoneal dialysis system, and
• the base peritoneal dialysis system is configured to
• automatically deliver dialysate to and automatically drain dialysate from a peritoneal cavity of a patient based on a patient treatment plan, and
• modify the patient treatment plan based on the patient treatment data transferred from the peritoneal dialysis fluid exchange system.