Intelligent therapy recommendation algorithim and method of using the same
View Patent ↗An algorithm and method of making intelligent therapy recommendations for insulin pump parameters is described. The pump parameters include basal rates, carbohydrate-to-insulin ratios (CIR), and insulin sensitivity factors (ISF). A determination of whether a therapy recommendation should be made is based on comparing an updated recommended change with a threshold. The updated recommended change to the pump parameter is made based on a previous recommended change to the pump parameter and the difference between a current blood glucose value and a targeted blood glucose level. The algorithm and method confirms the therapy recommendation is within safety parameters before displaying the therapy recommendation.
1. A method of automatically making a therapy recommendation for adjusting a basal rate stored on an insulin pump, the method comprising the steps of:
obtaining a blood glucose value at the end of a time interval;
determining if an intervening event occurred during the time interval , wherein the intervening event changes the blood glucose value unrelated to the stored basal rate and thereby interferes with recommending a change to the stored basal rate;
recommending no change to the stored basal rate based on the blood glucose value if the intervening event occurred during the time interval;
updating a recommended change to the stored basal rate based on a previous day recommended change to the stored basal rate during that interval and the difference between the blood glucose value and a target blood glucose level if no intervening event occurred during the time interval;
comparing an absolute value of the updated recommended change to a predefined threshold value of the stored basal rate;
making no therapy recommendation if the updated recommended change does not exceed the threshold or the therapy recommendation is not within safety parameters;
making the therapy recommendation if the updated recommended change exceeds the threshold and the therapy recommendation is within safety parameters; and
displaying the therapy recommendation to adjust the stored basal rate.
2. The method of claim 1 , wherein the basal rate is an overnight basal rate.
3. The method of claim 1 , wherein the step of recommending no change to the stored basal rate further comprises: skipping the blood glucose value if the intervening event includes a meal or a correction bolus during the time interval before the blood glucose value was obtained.
4. The method of claim 1 , wherein the step of confirming the therapy recommendation is within safety parameters comprises:
reviewing recent blood glucose history; and
using a moving standard deviation analysis on the recent blood glucose history to confirm the blood glucose value is relatively consistent with the blood glucose history.