US 12,495,994 B2Granted

Meal bolus subcategories in model based insulin therapy

AssigneeInsulet Corporation

InventorsThomas Metzmaker, Nicholas Conte, Ian McLaughlin, Joon Bok Lee, Paul Frederick Bente, IV, Ashutosh Zade, Steven Cardinali

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Abstract

Disclosed are examples that include receiving information related to ingestion of a meal. The information may include a coarse indication of a size of the meal, a relative time of ingestion of the meal, and a general composition indication of the meal. A blood glucose measurement value received within a predetermined time range of a relative time of ingestion of the meal may be identified. Settings for a delay and an extend parameter and a delivery constraint may be determined. A meal model may be modified using the determined settings for the delay parameter, the extend parameter, and the delivery constraint. The modified meal model may be used to determine a dose of insulin to be delivered in response to the received information. An instruction indicates a determined dose of insulin to be delivered may be output for delivery to a drug delivery device.

Claims13

Dependent claims

A non-transitory computer readable medium embodied with programming code executable by one or more processors of a drug delivery system that includes a drug delivery device with a reservoir of a drug, wherein the one or more processors when executing the programming code is/are operable to perform functions, including functions to:

display on a display device a plurality of options for a coarse indication of size of a meal that may be chosen by a user;
receive at the one or more processors an input indicating that the user has chosen one of the options for a coarse indication of a size of a meal, wherein an amount of carbohydrates in the meal is unspecified to the drug delivery system and items in the meal are unknown and unspecified to the drug delivery system, and wherein the chosen option for the coarse size of the meal indicates that the meal is categorized as a meal of a first size or a meal of a second size;
responsive to where the meal is categorized as a meal of the first size, determine with the one or more processors a first updated setting for a delivery constraint to a first preset percentage above a current maximum amount of the drug permitted to be delivered as specified by the delivery constraint, wherein the delivery constraint constrains an amount of the drug that is permitted to be delivered by the drug delivery device in a time period;
where the meal is categorized as a meal of the second size, determine with the one or more processors a second updated setting for the delivery constraint to a second preset percentage above a current maximum amount of the drug permitted to be delivered as specified by the delivery constraint;
determine with the one or more processors a dose of the drug to be delivered in response to the chosen option for the coarse indication of the size of the meal subject to the determined delivery constraint;
and
with the one or more processors, cause the determined dose of the drug to be delivered from the reservoir.

4 more elements

A drug delivery system, comprising:

a reservoir for storing a drug;
one or more processors;
one or more memories storing programming code, an artificial pancreas application, and operable to store data related to the artificial pancreas application, wherein the programming code and the artificial pancreas application are executable by the processor;
and
wherein the one or more processors when executing the artificial pancreas application is/are operable to control delivery of the drug, and to perform functions, including functions to:
display on a display device a plurality of options for a coarse indication of size of a meal that may be chosen by a user;
receive an input indicating that the user has chosen one of the options for a coarse indication of a size of a meal, wherein an amount of carbohydrates in the meal is unspecified to the drug delivery system and items in the meal are unknown and unspecified to the drug delivery system, and wherein the chosen option for the coarse size of the meal indicates that the meal is categorized as a meal of a first size or a meal of a second size;
responsive to where the meal is categorized as a meal of the first size, determine with the one or more processors a first updated setting for a delivery constraint to a first preset percentage above a current maximum amount of the drug permitted to be delivered as specified by the delivery constraint, wherein the delivery constraint constrains an amount of the drug that is permitted to be delivered by the drug delivery device in a time period;
responsive to where the meal is categorized as a meal of the second size, determine with the one or more processors a second updated setting for the delivery constraint to a second preset percentage above the current maximum amount of the drug permitted to be delivered as specified by the delivery constraint;
determine a dose of the drug to be delivered in response to the chosen option for the coarse indication of the size of the meal subject to the delivery constraint;
and
cause the determined dose of the drug to be delivered from the reservoir.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/796,575Filed 20 Feb 2020
Published: US 2021/0259590 A126 Aug 2021
Granted: 16 Dec 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61B 5/14532
Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g.…: for…
A61B 5/4839
Diagnosis combined with treatment in closed-loop systems or methods: combined with drug delivery
G16H 20/17
Relating to drugs or medications, e.g. for ensuring correct administration to patients: delivered via infusion or injection
G16H 20/60
ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient…:…