IP Library › Granted Patent US 10,555,705
Granted Patent B2
US 10,555,705 · App. 16/172,550 · Granted Feb 11, 2020

Systems and methods for dynamically and intelligently monitoring a host's glycemic condition after an alert is triggered

Inventors: Hari Hampapuram (Portland, OR); Anna Leigh Davis (Cardiff by the Sea, CA); Naresh Bhavaraju (San Diego, CA); Apurv Ullas Kamath (San Diego, CA); Claudio Cobelli (Padua, IT); Giovanni Sparacino (Padua, IT); Andrea Facchinetti (Padua, IT); Chiara Zecchin (Pernumia, IT)
Assignee: DexCom, Inc.
A61B5/746A61B5/0004A61B5/0022A61B5/0031A61B5/14503A61B5/14532A61B5/4848A61B5/4866A61B5/7221A61B5/7275G06F19/00A61B5/002
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Quick Facts
Patent No.
US 10,555,705
App. No.
16/172,550
Granted
Feb 11, 2020
Kind
B2
Abstract

Systems and methods for providing sensitive and specific alarms indicative of glycemic condition are provided herein. In an embodiment, a method of processing sensor data by a continuous analyte sensor includes: evaluating sensor data using a first function to determine whether a real time glucose value meets a first threshold; evaluating sensor data using a second function to determine whether a predicted glucose value meets a second threshold; activating a hypoglycemic indicator if either the first threshold is met or if the second threshold is predicted to be met; and providing an output based on the activated hypoglycemic indicator.

Claims (31)

1. A method for improving an interface with a continuous analyte sensor by avoiding unnecessary hyperglycemic alerts, the method comprising:

determining, by a processor module, that sensor data from the continuous analyte sensor meet one of one or more first criteria associated with a hyperglycemic condition of a host or one or more first criteria associated with a hypoglycemic condition of a host;

modifying a user interface associated with the continuous analyte sensor to indicate a first hyperglycemic alert when the data meets the one or more first criteria associated with the hyperglycemic condition or a first hypoglycemic alert when the data meets the one or more first criteria associated with the hypoglycemic condition;

actively monitoring, by the processor module, data associated with the hypoglycemic or hyperglycemic condition during a waiting time period; and

modifying, by the processor module, the user interface during the waiting time period to indicate a second hyperglycemic alert based on the data associated with the hyperglycemic condition meeting one or more second criteria during the waiting time period or a second hypoglycemic alert based on the data associated with the hypoglycemic condition meeting one or more second criteria during the waiting time period; and

transitioning to an inactive alert state based on the data associated with the hyperglycemic condition or hypoglycemia condition not meeting one or more third criteria after the waiting time period.

2. The method of claim 1 , wherein the actively monitoring comprises determining an average glucose over a window of time.

3. The method of claim 1 , wherein the actively monitoring comprises determining an amplitude and/or direction of rate of change.

4. The method of claim 1 , wherein the actively monitoring comprises determining an amplitude and/or direction of rate of acceleration.

5. The method of claim 1 , wherein the actively monitoring comprises evaluating insulin information.

6. The method of claim 1 , wherein the actively monitoring comprises evaluating meal information or timing.

7. The method of claim 1 , wherein the waiting time period is user selectable.

8. The method of claim 1 , further comprising not modifying the user interface during the waiting period to indicate the second hyperglycemic alert based on the data associated with the host's hyperglycemic condition not meeting the one or more second criteria or the second hypoglycemic alert based on the data associated with the host's hypoglycemic condition not meeting the one or more second criteria.

9. The method of claim 1 , wherein the one or more first criteria and the one or more second criteria are the same.

10. The method of claim 1 , wherein the one or more first criteria and the one or more second criteria are different.

11. The method of claim 1 , wherein the one or more third criteria and the one or more second criteria are the same.

12. The method of claim 1 , wherein the one or more third criteria and the one or more second criteria are different.

13. A system for processing data, the system comprising:

a continuous analyte sensor configured to be implanted within a body; and sensor electronics configured to receive and process sensor data output by the sensor, the sensor electronics including a processor configured to:

determine that sensor data from the continuous analyte sensor meet one of one or more first criteria associated with a hyperglycemic condition of the body or one or more first criteria associated with a hypoglycemic condition of the body;

modify a user interface associated with the continuous analyte sensor to indicate a first hyperglycemic alert when the data meets the one or more first criteria associated with the hyperglycemic condition or a first hypoglycemic alert when the data meets the one or more first criteria associated with the hypoglycemic condition;

actively monitor data associated with the hyperglycemic or hypoglycemic condition during a waiting time period; and

modify the user interface during the waiting time period to indicate a second hyperglycemic alert based on the data associated with the hyperglycemic condition meeting one or more second criteria during the waiting time period or a second hypoglycemic alert based on the data associated with the hypoglycemic condition meeting one or more second criteria during the waiting time period; and

transition to an inactive alert state based on the data associated with the hyperglycemic condition or hypoglycemia condition not meeting one or more third criteria after the waiting time period.

14. The system of claim 13 , wherein the actively monitoring comprises determining an average glucose over a window of time.

15. The system of claim 13 , wherein the actively monitoring comprises determining an amplitude and/or direction of rate of change.

16. The system of claim 13 , wherein the actively monitoring comprises determining an amplitude and/or direction of rate of acceleration.

17. The system of claim 13 , wherein the one or more third criteria and the one or more second criteria are the same.

18. The system of claim 13 , wherein the one or more third criteria and the one or more second criteria are different.

19. The system of claim 13 , wherein the one or more third criteria and the one or more first criteria are the same or the one or more third criteria and the one or more first criteria are different.

20. The method of claim 1 , wherein the one or more third criteria and the one or more first criteria are the same or the one or more third criteria and the one or more first criteria are different.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2019
From: COBELLI, CLAUDIO; FACCHINETTI, ANDREA; SPARACINO, GIOVANNI; ZECCHIN, CHIARA
To: UNIVERSITA DEGLI STUDI DI PADOVA
Reel/Frame 050667/0981 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2019
From: UNIVERSITA DEGLI STUDI DI PADOVA
To: DEXCOM, INC.
Reel/Frame 050668/0039 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2019
From: BHAVARAJU, NARESH C.; HAMPAPURAM, HARI; KAMATH, APURV ULLAS; RACK-GOMER, ANNA LEIGH
To: DEXCOM, INC.
Reel/Frame 050668/0053 →
Continuity (6)
Continuation 15486704 · Apr 13, 2017
Continuation 14720668 · May 22, 2015
Continuation 13742694 · Jan 16, 2013
Continuation 13742841 · Jan 16, 2013
Provisional Application 61720286 · Oct 30, 2012
Related Publication 20190059826A1 · Feb 28, 2019
Cited By (1)
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