Most blood glucose management systems are considered open-loop which means a system along with “human help” is used to set insulin doses. Newer technology is exploring the closed-loop system which are wearable devices that work with less help from humans. The nickname for these closed-loop systems is “artificial pancreas.” The main functionality of the artificial pancreas would mimic a human pancreas delivering the exact dose of insulin as needed automatically. This device does not replace the actual organ only taking over some of the organ’s responsibilities.
Open-loop: Continuous blood glucose readings through an insulin pump or a continuous glucose monitoring (CGM) system. The user monitors these readings and adjusts insulin dosages in response to blood glucose levels.
Hybrid closed-loop: A system that continually adjusts insulin delivery except for meal time. The bolus dose is still administered by the user.
Closed-loop system: A continuous cycle insulin of insulin delivery is administered using an algorithm to determine changes in glucose levels then gives the dose automatically without “human help.”