Abstract
New and improved technologies for the treatment of diabetes continue to emerge at an impressive rate. Recent advancements in insulin delivery and continuous glucose monitoring (CGM) have made a particularly meaningful impact on the care and treatment burden of many people living with type 1 diabetes (T1D) (1). One such advancement is the development and approval of the Medtronic MiniMed 670G hybrid closed-loop (670G HCL) system (Medtronic Diabetes, Northridge, Calif.) (2). This brief monograph will highlight key functions of the 670G HCL system and discuss potential advantages and disadvantages of the system. The 670G HCL system was initially approved by the U.S. Food and Drug Administration in September 2017 for use in people with T1D who are ≥14 years of age. In June 2018, the indication for the system was expanded to include people with T1D between the ages of 7 and 13 years (2). The 670G HCL system is composed of the MiniMed 670G insulin pump and the Guardian Sensor 3 CGM package (3). The system can function in two different modes: “auto mode” and “manual mode.” When in auto mode, the system uses an algorithm capable of automatically adjusting basal insulin delivery in response to CGM readings transmitted to the insulin pump every 5 minutes (4,5). While in …
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