Safeguarding techniques for closed-loop insulin infusion system
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A technology of insulin and infusion equipment, which is applied in the direction of pressure infusion, application, drug equipment, etc., and can solve the problems of insulin onset speed limitation and other issues
Active Publication Date: 2015-11-11
MEDTRONIC MIMIMED INC
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However, current pumps are still limited by the speed of action of the insulin being used in the pump
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[0132] The following detailed description is merely illustrative in nature and is not intended to limit the embodiments of the inventive subject matter or the application and uses of these embodiments. The word "exemplary" is used herein to mean "serving as an instance, instance, or illustration." Any implementation described herein as exemplary is not necessarily to be construed as preferred or advantageous over other implementations. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief introduction or the following detailed description.
[0133] Techniques and processes may be described herein in terms of functional elements and / or logical block elements with reference to symbols representing operations, processing tasks, and functions that may be performed by various computing elements or devices. These operations, tasks and functions are sometimes referred to as computer-implemented...
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Abstract
A method of controlling an insulin infusion device comprises operating a processor architecture comprising at least one processor device to calculate a maximum insulin infusion rate for the user based on a fasting blood glucose value associated with the user, a total daily insulin value associated with the user, and fasting insulin delivery data that is indicative of insulin delivered to the user during a fasting period, wherein the maximum insulin infusion rate is applicable during a period of closed-loop operation of the insulin infusion device; obtaining a first closed-loop insulin infusion rate for the user, wherein the first closed- loop insulin infusion rate is obtained for a current sampling point during the period of closed- loop operation; and providing a second closed-loop insulin infusion rate for the user when the obtained first closed-loop insulin infusion rate is greater than the calculated maximum insulin infusion rate, wherein the second closed-loop insulin infusion rate is less than the first closed-loop insulin infusion rate; the first closed-loop insulin infusion rate is calculated in accordance with a proportional-integral-derivative insulin feedback (PID-IFB) control algorithm; and inhibiting windup of an integral component of the PID-IFB control algorithm when the obtained first closed-loop insulin infusion rate is greater than the calculated maximum insulin infusion rate.
Description
[0001] This application is a branch of an invention patent application with the application number 201380055567.2, the application date is August 14, 2013, entered the Chinese national phase on April 23, 2015, and the invention name is "protection technology for closed-loop insulin infusion system". case application. [0002] Cross References to Related Applications [0003] This application claims the benefit of the following patent documents: U.S. Provisional Patent Application No. 61 / 694,950, filed August 30, 2012, U.S. Provisional Patent Application No. 61 / 694,961, filed August 30, 2012, April 17, 2013 U.S. Provisional Patent Application No. 61 / 812,874 filed on April 25, 2013; U.S. Patent Application No. 13 / 870,902 filed on April 25, 2013; U.S. Patent Application No. 13 / 870,910, filed August 25, U.S. Patent Application No. 13 / 966,109, filed August 13, 2013, U.S. Patent Application No. 13 / 966,101, filed August 13, 2013, 2013 U.S. Patent Application No. 13 / 966,114, filed Au...
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