TECHNICAL FIELD

This invention relates to the personalizing of preset meal sizes for a user to enter meal data into an insulin delivery system. For example, one or more meal icons can be personalized to describe an amount or range of amounts of carbohydrates for an insulin bolus calculation.

BACKGROUND

Diabetes mellitus is a chronic metabolic disorder caused by an inability of a person's pancreas to produce sufficient amounts of the hormone, insulin, such that the person's metabolism is unable to provide for the proper absorption of sugar and starch. This failure leads to hyperglycemia, i.e., the presence of an excessive amount of analyte, such as glucose, within the blood plasma. Persistent hyperglycemia has been associated with a variety of serious symptoms and life threatening long-term complications such as dehydration, ketoacidosis, diabetic coma, cardiovascular diseases, chronic renal failure, retinal damage and nerve damages with the risk of amputation of extremities. Self-monitoring of blood glucose and the self-administration of insulin is the typical method for treating diabetes. In order to assist with this self-treatment, many diabetes-related devices (e.g., blood glucose meters, insulin pumps, etc.) are equipped with insulin bolus calculators that have the user input a number of carbohydrates consumed (or about to be consumed) and the bolus calculator outputs a recommended size for the insulin bolus dosage. Although bolus calculators remove some of the calculations that need to be made by the user in determining an appropriate insulin bolus dosage, bolus calculators still burden the user with the mental task of determining the number of carbohydrates in their meal. Accordingly, there is a need for methods, systems, and devices that further reduce the cognitive burden on the user while improving the accuracy of a recommended insulin bolus dosage.

BRIEF SUMMARY

Some embodiments include an insulin delivery system that includes an insulin delivery device adapted to receive insulin and deliver insulin subcutaneously; a user interface in communication with the insulin delivery device and adapted to send the insulin delivery device bolus insulin instructions, the user interface including multiple user-selectable icons or buttons each representing an amount of carbohydrates; memory to store one or more user-specific dosage parameter; and a processor in communication with the memory and adapted to receive blood glucose data, the processor being adapted to determine the amount of carbohydrates associated with each of the user-selectable icons or buttons based on at least one of the user-specific dosage parameters, the processor further being adapted to update the amount of carbohydrates associated with each of the user-selectable icons or buttons based upon the blood glucose data.

In some embodiments, the user-selectable icons or buttons each represent an amount of carbohydrates in 5 gram or 10 gram increments. In some embodiments, the amount of carbohydrates represented by each of the icons is determined based on an insulin Sensitivity Factor (ISF), a Carb Ratio (CR), a body weight, an age, a total daily basal dose (TDBD), and/or a combination thereof of a person with diabetes (PWD).

In some embodiments, the processor is further configured to determine an insulin delivery amount based on an amount of carbohydrates associated with a selected one of the user selectable icons or buttons and/or the blood glucose data.

In some embodiments, the user-selectable icons or buttons each represent an amount of carbohydrates rounded to the nearest 5 grams.

In some embodiments, the insulin delivery system may include a glucose monitor adapted to monitor the glucose level of a person with diabetes and provide blood glucose data to the processor.

In some embodiments, the amount of carbohydrates associated with each of the user-selectable icons is determined from postprandial blood glucose data.

Some embodiments may include a method that includes displaying at least three icons on a user interface of a mobile device, including a first icon associated with the at least three icons associated with a first carbohydrate level, a second icon associated with the at least three icons associated with a second carbohydrate level, and a third icon associated with the at least three icons associated with a third carbohydrate level; receiving a user selection of one of the three icons through the user interface of the mobile device; determining an insulin bolus level from the user selection; and communicating the insulin bolus level to an insulin delivery device.

In some embodiments, the method may include receiving blood glucose data; wherein the insulin bolus level is determined in part from the blood glucose data.

In some embodiments, adjusting the first carbohydrate level, the second carbohydrate level, and the third carbohydrate level based on an insulin Sensitivity Factor (ISF), a Carb Ratio (CR), a body weight, an age, a total daily basal dose (TDBD) (which can be characterized as a rate), and/or a combination thereof of a person with diabetes (PWD).

In some embodiments, the insulin bolus level is communicated to the insulin delivery device in response to a user selection indicating delivery of the insulin, wherein the user selection includes a fail-safe procedure.

In some embodiments, the insulin bolus level is communicated to the insulin delivery device in response to a user selection indicating delivery of the insulin, wherein the user selection includes a plurality of taps or gestures from a user.

In some embodiments, the first carbohydrate level is rounded to the nearest 5 grams, the second carbohydrate level is rounded to the nearest 5 grams, and the third carbohydrate level is rounded to the nearest 5 grams.

In some embodiments, the method may include receiving postprandial blood glucose data; and adjusting at least one of the first carbohydrate level, the second carbohydrate level, and the third carbohydrate level based on the postprandial blood glucose data.

In some embodiments, the method may include the insulin bolus level is determined from one or more of the following factors the number of carbohydrates divided by the PWD's carbohydrate-to-insulin ratio, a difference between the current blood glucose level and a target blood glucose level divided by the PWD's insulin sensitivity factor, a reading from a blood glucose meter (BGM), data from a continuous glucose monitor (CGM), data from a flash glucose monitor, blood glucose trend data, Insulin on Board (IOB) data, Carbohydrates on Board (COB) data, whether the PWD is or plans to exercise, whether the PWD is sick, whether the PWD is pregnant, whether the PWD is experiencing menses, and/or whether the PWD has consumed certain medications.

