Systems and methods for blood glucose monitoring and alert delivery

• US 8,229,535 B2
• Filed: 02/20/2009
• Issued: 07/24/2012
• Est. Priority Date: 02/21/2008
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Mensinger, Michael Robert, Dobbles, John Michael, Kamath, Apurv U., Stadelmann, Beat, Ruppert, Deborah M., Salamati, Nasser, Yang, Richard C.
• Primary Examiner(s): Mallari, Patricia
• Assistant Examiner(s): D'ANGELO, MICHAEL J
• Application Number:
  US12/390,290
• Publication Number:
  US 20090240128A1
• Time in Patent Office: 1,250 Days
• Field of Search: 600345-347, 600/365, 435/4, 435/14, 422/50, 422420-429
• US Class Current: 600/345
• 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 5/7445 Display arrangements, e.g. multiple display units
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: Y02A 90/10 Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

Systems and methods for continuous measurement of an analyte in a host are provided. The system generally includes a continuous analyte sensor configured to continuously measure a concentration of analyte in a host and a sensor electronics module physically connected to the continuous analyte sensor during sensor use, wherein the sensor electronics module is further configured to directly wirelessly communicate displayable sensor information to a plurality of different types of display devices.

Claims

1. A method for continuous measurement of a glucose level of a host using a glucose monitoring system, the method comprising:

periodically receiving glucose sensor data from a continuous glucose sensor that is configured to measure a glucose concentration of a host;

calibrating, using electronics of the glucose monitoring system, the glucose sensor data from the continuous glucose sensor;

storing, using the electronics of the glucose monitoring system, the calibrated glucose sensor data in computer memory;

wirelessly receiving, using electronics of the glucose monitoring system, a first status request associated with a status of an event;

in response to receiving the first status request, sending, using the electronics of the glucose monitoring system, a first status message that indicates the event is in the first status state;

wirelessly sending, using the electronics of the glucose monitoring system, a first data package having some of the calibrated glucose sensor data stored in the computer memory;

determining, using the electronics of the glucose monitoring system, the event changed to a second status state that is different from the first status state;

wirelessly receiving, using the electronics of the glucose monitoring system, a second status request associated with the status of the event;

wirelessly sending, using the electronics of the glucose monitoring system, a second status message indicating the event is in the second status state;

wirelessly receiving, using the electronics of the glucose monitoring system, a second data package having data content limited to sensor data generated by a sensor that is different from the continuous glucose sensor; and

changing, using the electronics of the glucose monitoring system, the status of the event to the first state responsive to receipt of the sensor data generated by the sensor that is different from the continuous glucose sensor included in the second data package.

2. The method of claim 1, wherein the status changed due to expiration of a timer associated with the event.

3. The method of claim 1, further comprising receiving a request for additional glucose sensor data associated with a specified time frame and sending a third data package having calibrated glucose data associated with the time frame.

4. The method of claim 3, wherein the request further includes formatting instructions for the requested additional data.

5. The method of claim 3, wherein the third data package is sent in a different data transmission format than the data transmission format used when sending the first data package.

6. The method of claim 3, wherein the third data package is sent using a different data transmission method than the data transmission method used when sending the first data package.

7. The method of claim 1, further comprising sending an indication of when the event will change status states.

8. The method of claim 1, wherein determining the change in the status state of the event comprises analyzing the calibrated glucose sensor data.

9. The method of claim 1, wherein the glucose monitoring system includes a sensor electronics module and a display device, wherein the sending and receiving of data packages is performed between the sensor electronics module and the display device.

10. The method of claim 1, wherein the event status corresponds to a status of the host or a status of a device of the glucose monitoring system.

11. The method of claim 1, wherein the status is a clinical risk status determined based on analysis of the sensor data.

12. The method of claim 1, wherein the event status is changed based on a status schedule.

13. The method of claim 1, further comprising determining a delivery option associated with the second data package, wherein the delivery option is limited to a display device type.

14. The method of claim 1, wherein the event status corresponds to a status of the host or a status of a device of the glucose monitoring system.

15. The method of claim 1, wherein the status is a clinical risk status determined based on analysis of the sensor data.

16. The method of claim 1, wherein the event status is changed based on a status schedule.

17. The method of claim 1, further comprising determining a delivery option associated with the second data package, wherein the delivery option is limited to a display device type.

18. A system for continuous measurement of a glucose level of a host using a glucose monitoring system, the system comprising one or more computer processors and computer memory, the computer memory having software code thereon, the software code configured for execution by the one or more processors of the system, wherein the software code, if executed by the one or more processors, causes the computing device to perform a method of transmitting sensor data between a sensor electronics module and a display device of the system, wherein the method comprises:

periodically receiving glucose sensor data from a continuous glucose sensor;

calibrating the glucose sensor data from the continuous glucose sensor;

storing the calibrated glucose sensor data in computer memory;

wirelessly receiving a first status request associated with a status of an event;

in response to receiving the first status request, sending a first status message that indicates the event is in the first status state;

wirelessly sending a first data package having some of the calibrated glucose sensor data stored in the computer memory;

determining the event changed to a second status state that is different from the first status state;

wirelessly receiving a second status request associated with the status of the event;

wirelessly sending a second status message indicating the event is in the second status state;

wirelessly receiving a second data package having data content limited to sensor data generated by a sensor that is different from the continuous glucose sensor; and

changing the status of the event to the first state responsive to receipt of the sensor data generated by the sensor that is different from the continuous glucose sensor included in the second data package.

19. The system of claim 18, wherein the status changed due to expiration of a timer associated with the event.

20. The system of claim 18, wherein the method further comprises receiving a request for additional glucose sensor data associated with a specified time frame and sending a third data package having calibrated glucose data associated with the time frame.

21. The system of claim 20, wherein the third data package is sent in a different data transmission format than the data transmission format used when sending the first data package.

22. The system of claim 20, wherein the third data package is sent using a different data transmission method than the data transmission method used when sending the first data package.

23. The system of claim 18, wherein the method further comprises sending an indication of when the event will change status states.

24. The system of claim 18, wherein determining the change in the status state of the event comprises analyzing the calibrated glucose sensor data.