IP Library › Granted Patent US 12,727,833
Granted Patent B2
US 12,727,833 · App. 17/882,860 · Granted Sep 8, 2026

Model based variable risk false glucose threshold alarm prevention mechanism

Inventor: Erwin Satrya Budiman (Fremont, CA)
Assignee: ABBOTT DIABETES CARE INC.
A61B5/746A61B5/002A61B5/0031A61B5/14503A61B5/1451A61B5/14532A61B5/14546A61B5/6849A61B5/7275A61B5/7282G16H20/17G16H40/67
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Quick Facts
Patent No.
US 12,727,833
App. No.
17/882,860
Granted
Sep 8, 2026
Kind
B2
Abstract

Methods of determining when to activate an analyte, e.g. glucose, related alarm, such as a hypoglycemia alarm, of a continuous analyte monitor is provided. Also provided are systems, devices and kits.

Claims (38)

1 . A method for monitoring a glucose concentration of a user, said method comprising:

receiving, from a glucose sensor, first measurement data related to the glucose concentration of the user, wherein at least a portion of the glucose sensor is transcutaneously positioned in contact with a bodily fluid of the user;

determining a value of the glucose concentration of the user based on the first measurement data received from the glucose sensor;

determining a best-estimate of the glucose concentration of the user based on the first measurement data received from the glucose sensor;

gathering additional glucose measurement data from the glucose sensor, resulting in a set of measurement data being obtained from the glucose sensor over time, the set of measurement data including the first measurement data;

determining that there is a convergence between the set of measurement data, which is gathered over time, and the best-estimate; and

modifying at least one condition for activating an alarm based on the convergence between the best-estimate and the set of measurement data.

2 . The method of claim 1 , wherein determining the best-estimate of the glucose concentration of the user uses insulin administration information of the user, and wherein the insulin administration information includes an insulin administration history of the user.

3 . The method of claim 1 , wherein determining the best-estimate of the glucose concentration of the user uses insulin administration information of the user, and wherein the insulin administration information includes an insulin sensitivity profile of the user.

4 . The method of claim 1 , wherein the at least one condition for activating the alarm includes an alarm delay timer.

5 . The method of claim 4 , wherein a modified value of the alarm delay timer is based on the set of measurement data received from the glucose sensor.

6 . The method of claim 1 , wherein the at least one condition for activating the alarm includes a threshold value associated with activating the alarm.

7 . The method of claim 1 , further comprising determining whether the best-estimate and the set of measurement data both exceed a threshold value.

8 . The method of claim 1 , further comprising determining whether the best-estimate exceeds a first threshold value and the set of measurement data exceeds a second threshold value.

9 . The method of claim 1 , further comprising determining a best-estimate of the glucose concentration of the user by:

predicting an estimate of a true value of a blood glucose concentration of the user;

estimating an uncertainty of the predicted true value; and

computing a weighted average of the predicted true value and the value of the glucose concentration of the user based on the set of measurement data received from the glucose sensor, wherein weights of the weighted average are based on the estimated uncertainty.

10 . The method of claim 9 , wherein the weighted average is based on an estimate of the true value of the blood glucose concentration of the user at a previous time.

11 . The method of claim 1 , wherein the bodily fluid is interstitial fluid.

12 . The method of claim 1 , wherein the at least one condition for activating the alarm is associated with a hyperglycemic state.

13 . The method of claim 1 , wherein the at least one condition for activating the alarm is associated with a hypoglycemic state.

14 . The method of claim 1 , wherein the best-estimate includes a range of values, including an upper bound and a lower bound, and wherein determining that there is a convergence between the best-estimate and the set of measurement data comprises determining that the upper bound of the best-estimate equals an upper bound of the set of measurement data, and that the lower bound of the best-estimate equals a lower bound of the set of measurement data.

15 . A glucose monitoring system comprising:

a glucose sensor configured to be transcutaneously positioned in contact with a bodily fluid of a user to monitor a glucose concentration;

on-body electronics electrically and communicatively coupled with the glucose sensor; and

a display device comprising one or more processors and a memory communicatively coupled with the one or more processors and in wireless communication with the on-body electronics, wherein the memory comprises instructions which, when executed by the one or more processors, cause the display device to:

receive, from the on-body electronics, first measurement data related to the glucose concentration of the user;

determine a value of the glucose concentration of the user based on the first measurement data;

determine a best-estimate of the glucose concentration of the user based on the first measurement data received from the glucose sensor;

gather additional glucose measurement data from the glucose sensor, resulting in a set of measurement data being obtained from the glucose sensor over time, the set of measurement data including the first measurement data;

modify at least one condition for activating an alarm when the set of measurement data converges with the best-estimate; and

activate the alarm based on determining that the at least one condition is satisfied.

16 . The glucose monitoring system of claim 15 , wherein determining the best-estimate of the glucose concentration of the user uses insulin administration information of the user, and wherein the insulin administration information includes an insulin administration history of the user.

17 . The glucose monitoring system of claim 15 , wherein determining the best-estimate of the glucose concentration of the user uses insulin administration information of the user, and wherein the insulin administration information includes an insulin sensitivity profile of the user.

18 . The glucose monitoring system of claim 15 , wherein the at least one condition for activating the alarm includes an alarm delay timer.

19 . The glucose monitoring system of claim 18 , wherein a modified value of the alarm delay timer is based on the set of measurement data received from the glucose sensor.

20 . The glucose monitoring system of claim 15 , wherein the best-estimate includes a range of values, including an upper bound and a lower bound, and wherein determining that there is a convergence between the best-estimate and the set of measurement data comprises determining that the upper bound of the best-estimate equals an upper bound of the set of measurement data, and that the lower bound of the best-estimate equals a lower bound of the set of measurement data.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 7, 2022
From: BUDIMAN, ERWIN SATRYA
To: ABBOTT DIABETES CARE INC.
Reel/Frame 062018/0376 →
Continuity (5)
Continuation 15916258 · Mar 8, 2018
Continuation 15487365 · Apr 13, 2017
Continuation 14128583 · Oct 30, 2012
Provisional Application 61553931 · Oct 31, 2011
Related Publication 20220370021A1 · Nov 24, 2022
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