Systems and methods for monitoring and managing life of a battery in an analyte sensor system worn by a user

• US 10,052,050 B2
• Filed: 12/12/2014
• Issued: 08/21/2018
• Est. Priority Date: 12/16/2013
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Hernandez-Rosas, Jose Hector, Dervaes, Mark, Simpson, Peter C., Kamath, Apurv Ullas, Miller, Tom, Larvenz, Shawn, Vanslyke, Stephen J.
• Primary Examiner(s): Natnithithadha, Navin
• Assistant Examiner(s): Messersmith, Eric
• Application Number:
  US14/569,512
• Publication Number:
  US 20150164391A1
• Time in Patent Office: 1,348 Days
• CPC Class Codes: A61B 2560/0204 of power management
• CPC Class Codes: A61B 2560/0209 adapted for power saving
• CPC Class Codes: A61B 2560/0214 of power generation or supply
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/6802 Sensor mounted on worn items
• CPC Class Codes: A61B 5/7282 Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take precedence
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: G16H 40/40 for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment
• CPC Class Codes: H04W 52/0277 according to available power supply, e.g. switching off when a low battery condition is detected
• CPC Class Codes: Y02A 90/10 Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Systems and methods for analyte monitoring, particularly systems and methods for monitoring and managing life of a battery in an analyte sensor system worn by a user, are provided.

Claims

1. An analyte sensor system configured to be worn by a user, comprising:

an analyte sensor;

a transceiver configured to transmit and receive wireless signals;

a battery; and

a processor configured to;

measure a value indicative of a current power level of the battery,

predict a remaining useful life of the battery based on the measured value and an assumed future usage of the analyte sensor system,

wherein the assumed future usage is determined based on stored history of prior usage of the analyte sensor system, and wherein the prior usage is related to a number of data transmission events, and different types of data transmission events that occurred within a predetermined number of past update cycles,

determine that the remaining useful life of the battery is below a predefined power level, and

cause a change in one or more data transmission operations of the analyte sensor system.

2. The analyte sensor system of claim 1, wherein the analyte sensor system is a continuous glucose sensor system.

3. The analyte sensor system of claim 1, where the change includes a reduction in a radio frequency transmission power level of the transceiver.

4. The analyte sensor system of claim 3, wherein the reduction in the radio frequency transmission power level of the transceiver is preceded by a determination that the analyte sensor system is in close proximity of a display device for displaying analyte values received from the transceiver.

5. The analyte sensor system of claim 1, wherein the change includes a limitation on bulk transfers of past measured analyte values stored at the analyte sensor system.

6. The analyte sensor system of claim 5, wherein the limitation includes a cancellation of the bulk transfers altogether.

7. The analyte sensor system of claim 5, wherein the limitation includes a transfer of only part of the stored past measured analyte values in the bulk transfers.

8. The analyte sensor system of claim 1, wherein the change includes an increase in an interval between regularly-scheduled transmissions of analyte values.

9. The analyte sensor system of claim 1, wherein the change includes skipping one or more of regularly-scheduled transmissions of analyte values.

10. The analyte sensor system of claim 1, wherein the change includes a cancellation of regularly scheduled transmissions of analyte values and a transmission of an analyte value in response to one or more events instead.

11. The analyte sensor system of claim 10, wherein the one or more events include a user prompt of data.

12. The analyte sensor system of claim 10, wherein the one or more events include analyte values exceeding or falling below a threshold analyte value.

13. The analyte sensor system of claim 1, wherein one of the type of transmissions is regularly-scheduled transmission of measured analyte values.

14. The analyte sensor system of claim 1, wherein one of the type of transmissions is bulk-transfers of analyte values.

15. The analyte sensor system of claim 1, wherein the assumed future usage is related to the expected frequencies of different types of transmission events.