Patent ID: 11911595
Assignee: TANDEM DIABETES CARE, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 0:
1. A system for closed loop diabetes therapy, comprising:
a pump mechanism configured to facilitate delivery of insulin to a user;
a communications device adapted to receive glucose levels from a continuous glucose monitor;
at least one processor functionally linked to the pump mechanism and the communications device, the at least one processor configured to:
calculate and deliver insulin doses to the user based on a closed loop insulin delivery algorithm, the closed loop insulin delivery algorithm including an outer glucose loop that compares glucose levels from the continuous glucose monitor to a glucose target to determine an insulin on board target for the user and an inner insulin on board loop that compares an estimated insulin on board for the user to the insulin on board target to determine an insulin on board error used to calculate insulin doses configured to maintain the insulin on board of the user at the insulin on board target and the glucose levels of the user at the glucose level target;
receive an indication that the user will be eating a meal;
activate a pre-meal scale for the closed loop insulin delivery algorithm in response to the indication that the user will be eating the meal, the pre-meal scale modifying the inner insulin on board loop of the closed loop delivery algorithm that calculates insulin doses to maintain the insulin on board of the user at the insulin on board target; and
calculate and deliver insulin doses to the user based on glucose levels from the continuous glucose monitor using the pre-meal scale of the closed loop insulin delivery algorithm following the indication that the user will be eating the meal.