ALGORITHM SENSOR AUGMENTED BOLUS ESTIMATOR FOR SEMI-CLOSED LOOP INFUSION SYSTEM

摘要

An infusion system is for infusing a fluid into the body of a patient. Theinfusion system includes at least one sensor for monitoring blood glucoseconcentration of the patient and an infusion device for delivering fluid tothe patient. The sensor produces at least one sensor signal input. Theinfusion device uses the at least one sensor signal input and a derivativepredicted algorithm to determine future blood glucose levels. The infusiondevice delivers fluid to the patient when future blood glucose levels are in apatient's target range. The infusion device is capable of suspending andresuming fluid delivery based on future blood glucose levels and a patient'slow shutoff threshold. The infusion device suspends fluid delivery when futureblood glucose levels falls below the low shutoff threshold. The infusiondevice resumes fluid delivery when a future blood glucose level is above thelow shutoff threshold.