Patent ID: 8206339

Claim:
A peritoneal dialysis system comprising: a cycler including first and second pressure sensors, the cycler being operable with a disposable cassette including first and second sensing locations, the cassette connected to a patient line, which is capable of being placed in fluid communication with a catheter having access to a patient's peritoneal cavity, the cycler constructed and arranged to: convey dialysis fluid to the peritoneal cavity through the patient line and the catheter during a patient fill phase; allow the dialysis fluid to dwell within the peritoneal cavity during a patient dwell phase; convey dialysis fluid away from the peritoneal cavity through the patient line and the catheter during a patient drain phase; and sense, at the first and second sensing locations on the disposable cassette via the first and second pressure sensors contacting the first and second sensing locations, respectively, a pressure through the catheter to optimize an amount of fluid conveyed during the patient fill phase, so that the peritoneal cavity is not overpressurized during the patient dwell phase.