Dialysis system having adaptive prescription management

Inventors

Yu, Alex Anping • Grayson, James • Childers, Robert W.

Assignees

Baxter Healthcare SA • Baxter International Inc

Abstract

An example peritoneal dialysis system is disclosed. The example peritoneal dialysis system includes at least one pump and a memory device configured to store therapy prescriptions including a first ultrafiltration (“UF”) therapy prescription for removing ultrafiltrate from a patient, and a second UF therapy prescription for removing less ultrafiltrate from the patient compared to the first UF therapy prescription. The system further includes a logic implementer configured to receive UF removed data, use the UF removed data to form or update a moving average UF removed trend, and compare the moving average UF removed trend to an expected UF removal trend or an expected UF removal minimum value. When the moving average UF removed trend is below the expected UF removal trend or the expected UF removal minimum value, the logic implementer provides a recommendation that the first UF therapy prescription should be selected for a next peritoneal dialysis treatment.

Core Innovation

The invention provides a peritoneal dialysis system that stores therapy prescriptions, including high UF therapy prescription, a standard UF therapy prescription, and a low UF therapy prescription, each for removing different amounts of ultrafiltrate. The memory device also stores an expected UF removal trend and/or an expected UF removal minimum value, and the logic implementer receives UF removed data related to performing the high UF, standard UF, or low UF therapy prescription for a peritoneal dialysis treatment.

Using the UF removed data, the logic implementer forms or updates a moving average UF removed trend and compares that moving average UF removed trend to the expected UF removal trend or the expected UF removal minimum value. When the moving average UF removed trend is below the expected UF removal trend or the expected UF removal minimum value, the logic implementer provides a recommendation via a user interface that the high UF therapy prescription should be selected for a next peritoneal dialysis treatment, receives a selection of the high UF therapy prescription, and controls at least one pump based on the selected UF therapy prescription to perform the next peritoneal dialysis treatment.

In additional embodiments, the logic implementer determines a trending range around the moving average UF removed trend, determines a lower UF removed limit from the trending range, and provides the recommendation when the moving average UF removed trend is below the lower UF removed limit. In further embodiments, the logic implementer can also use an upper UF removed limit case to recommend selection of a low UF or standard UF therapy prescription for the next peritoneal dialysis treatment.

Claims Coverage

The independent claims are directed to a peritoneal dialysis system that uses UF removed data to compute or update a moving average UF removed trend and compares it to stored expected UF removal criteria to generate recommendations for selecting a UF therapy prescription for a next treatment, followed by pump control. Across the independent claims, the inventive features include a prescription set with high, standard, and low UF options, movement-trend based comparison to expected minimum criteria and, in some embodiments, trending-range lower or upper limits, user-interface recommendations with received selections, and controlling at least one pump based on the selected prescription.

Overall, the claim set covers a peritoneal dialysis system that uses UF removed data to compute or update a moving average UF removed trend and compares it to expected UF removal criteria. The system provides user-interface recommendations to select a high, and in some embodiments low or standard, UF therapy prescription for a next peritoneal dialysis treatment and then controls at least one pump based on the received selection.

Stated Advantages

Documented Applications

No documented applications found