Bolus estimator for semi-closed loop infusion system

Details Bolus estimator for semi-closed loop infusion system Bolus estimator for semi-closed loop infusion system

A - Human Necessities

61

B

A61B 5/00 (2006.01) A61M 5/172 (2006.01)

Patent

CA 2593121

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

L'invention concerne un système de perfusion destiné à perfuser un fluide dans le corps d'un patient. Ledit système de perfusion comporte au moins un capteur qui surveille la glycémie du patient et un dispositif de perfusion qui alimente le patient en fluide. Ledit capteur produit au moins une entrée de signal. Ledit dispositif de perfusion utilise ces entrées et un algorithme prévu dérivé pour déterminer une glycémie future. Le dispositif de perfusion administre le fluide au patient lorsque la glycémie future se situe dans la fourchette cible du patient. Ledit dispositif de perfusion peut suspendre et reprendre l'administration du fluide en fonction de la glycémie future et d'un seuil d'arrêt bas du patient. Le dispositif de perfusion suspend l'administration du fluide lorsque la glycémie future passe sous le seuil d'arrêt bas. Il reprend l'administration du fluide lorsque la glycémie future passe au-dessus du seuil d'arrêt bas.

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