Patent ID: 7785463

Claim:
An extracorporeal renal replacement system for fluid removal from the blood of a patient, comprising: a pump capable of pumping a liquid selected from the group consisting of infusate, drained fluid, and blood in the extracorporeal renal replacement system; a flow rate sensor for measuring the flow rate of fluid in the system generated by the pump, the flow rate sensor providing flow rate data signals correlated to the fluid flow rate; a patient sensor for measuring a physiological condition of the patient, the patient sensor providing patient sensor data signals correlated to the physiological condition; and a controller in communication with the pump, the flow rate sensor and the patient sensor, the controller configured to receive the flow rate data signals and the patient sensor data signals and analyze the flow rate data signals and the patient parameter data signals using a mathematical model to predict a direction of an ultrafiltration rate based on current conditions, and then to automatically initiate generation of a corrective output signal for the pump to adjust the flow rate of liquid generated by the pump for regulating fluid removal from the patient's blood.