Continuous glucose monitor communication with multiple display devices

• US 10,007,473 B2
• Filed: 01/20/2016
• Issued: 06/26/2018
• Est. Priority Date: 01/21/2015
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Hampapuram, Hari, Cohen, Eric, Smith, Brian Christopher, Hernandez-Rosas, Jose Hector, Pascual, Francis William, Mensinger, Michael Robert, Larvenz, Shawn
• Primary Examiner(s): Srivastava, Vivek
• Assistant Examiner(s): Khan, Atta
• Application Number:
  US15/002,176
• Publication Number:
  US 20160210106A1
• Time in Patent Office: 888 Days
• Field of Search: 709227
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G06F 3/1454 involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
• CPC Class Codes: G09G 2358/00 Arrangements for display data security
• CPC Class Codes: G09G 2370/16 Use of wireless transmission of display information
• CPC Class Codes: G09G 2380/08 Biomedical applications
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/14 Direct-mode setup

Abstract

A continuous glucose monitor for wirelessly transmitting data relating to glucose value to a plurality of displays is disclosed, as well as systems and methods for limiting the number of display devices that can connect to a continuous glucose transmitter. In addition, security, including hashing techniques and a changing application key, can be used to provide secure communications between the continuous glucose transmitter and the displays. Also provided is a continuous glucose monitor and techniques for authenticating multiple displays, providing secure data transmissions to multiple displays, and coordinating the interaction of commands and data updates between multiple displays.

Claims

1. A method for establishing communication between a plurality of display devices and a transmitter coupled to an analyte sensor of a continuous glucose monitoring system, comprising:

receiving a request to connect the transmitter with a first display device, the request identifying a first type of the first display device;

comparing the first type of the first display device with a first list including a plurality of allowed types of display devices;

determining whether a display device having the first type is actively connected with the transmitter;

initiating pairing of the transmitter with the first display device when fewer than a predetermined number of display devices with the first type are included in the first list;

storing bonding information associated with the first display device as a result of pairing the first display device with the transmitter in a second list that is different from the first list;

establishing a first data communication channel to allow transmission of analyte values generated by the analyte sensor from the transmitter to the first display device;

receiving a request to connect the transmitter with a second display device, the request identifying a second type of the second display device;

comparing the second type of the second display device with the first list including a plurality of allowed types of display devices;

determining whether a display device having the second type is actively connected with the transmitter;

initiating pairing of the transmitter with the second display device when fewer than the predetermined number of display devices with the second type are included in the first list;

storing bonding information associated with the second display device as a result of pairing the second display device with the transmitter in the second list; and

establishing a second data communication channel to allow transmission of the analyte values generated by the analyte sensor from the transmitter to the second display device.

2. The method of claim 1, wherein the first type of device comprises a smart phone and

the second type of device comprises a dedicated display.

3. The method of claim 2,

wherein the bonding information associated with the first and the second display devices is used to establish the first and the second data communication channels respectively.

4. The method of claim 1, further comprising rejecting the request to establish communication between the transmitter and the first display device when another display device with the first type is actively connected.

5. The method of claim 1, further comprising rejecting the request to establish communication between the transmitter and the second display device when another display device with the second type is actively connected.

6. The method of claim 1, further comprising:

adding the first display device to the first list after connecting the transmitter with the first display device; and

adding the second display device to the first list after connecting the transmitter with the second display device.

7. The method of claim 1, further comprising:

receiving a request to remove the first display device from the first list;

terminating communications with the first display device; and

removing the first display device from the first list.

8. The method of claim 1, further comprising connecting the plurality of display devices with the transmitter periodically at communication intervals.

9. One or more non-transitory computer-readable media comprising instructions which, when executed by one or more processors, perform a method for establishing communication between a plurality of display devices and a transmitter coupled to an analyte sensor of a continuous glucose monitoring system, comprising:

receiving a request to connect the transmitter with a first display device, the request identifying a first type of the first display device;

comparing the first type of the first display device with a first list including a plurality of allowed types of display devices;

determining whether a display device having the first type is actively connected with the transmitter;

initiating pairing of the transmitter with the first display device when fewer than a predetermined number of display devices with the first type are included in the first list;

storing bonding information associated with the first display device as a result of pairing the first display device with the transmitter in a second list that is different from the first list;

establishing a first data communication channel to allow transmission of analyte values generated by the analyte sensor from the transmitter to the first display device;

receiving a request to connect the transmitter with a second display device, the request identifying a second type of the second display device;

comparing the second type of the second display device with the first list including a plurality of allowed types of display devices;

determining whether a display device having the second type is actively connected with the transmitter;

initiating pairing of the transmitter with the second display device when fewer than the predetermined number of display devices with the second type are included in the first list;

storing bonding information associated with the second display device as a result of pairing the second display device with the transmitter in the second list; and

establishing a second data communication channel to allow transmission of the analyte values generated by the analyte sensor from the transmitter to the second display device.

10. The non-transitory computer-readable media of claim 9, wherein the first type of device comprises a smart phone and the second type of device comprises a dedicated display.

11. The non-transitory computer-readable media of claim 9,

wherein the bonding information associated with the first and the second display devices is used to establish the first and the second data communication channels respectively.

12. The non-transitory computer-readable media of claim 9, further comprising instructions which, when executed by the one or more processors, reject the request to establish communication between the transmitter and the first display device when another display device with the first type is actively connected.

13. The non-transitory computer-readable media of claim 9, further comprising instructions which, when executed by the one or more processors, reject the request to establish communication between the transmitter with the second display device when another display device with the second type is actively connected.

14. The non-transitory computer-readable media of claim 9, further comprising instructions which, when executed by the one or more processors:

add the first display device to the first list after connecting the transmitter with the first display device; and

add the second display device to the first list after connecting the transmitter with the second display device.

15. The non-transitory computer-readable media of claim 9, further comprising instructions which, when executed by the one or more processors:

receive a request to remove the first display device from the first list;

terminate communications with the first display device; and

remove the first display device from the first list.

16. The non-transitory computer-readable media of claim 9, further comprising instructions which, when executed by the one or more processors:

connect the plurality of display devices with the transmitter periodically at communication intervals; and

store the bonding information in the second list as a result of the connecting.

17. A system for establishing communication between a plurality of display devices and a transmitter coupled to an analyte sensor of a continuous glucose monitoring system, comprising:

a first display device;

a second display device;

a wireless receiver in the transmitter configured to receive a request to connect the transmitter with a first display device, the request identifying a first type of the first display device;

a memory in the transmitter configured to store a first list of allowed types of display devices;

a processor in the transmitter configured to;

compare the first type of the first display device with the list;

determine whether a display device having the first type is actively connected with the transmitter;

initiate pairing of the transmitter with the first display device when fewer than a predetermined number of display devices with the first type are included in the list;

store bonding information associated with the first display device as a result of pairing the first display device with the transmitter in a second list that is different from the first list; and

establish a first data communication channel to allow transmission of analyte values generated by the analyte sensor from the transmitter to the first display device;

receive a request to connect the transmitter with a second display device, the request identifying a second type of the second display device;

compare the second type of the second display device with the first list including a plurality of allowed types of display devices;

determine whether a display device having the second type is actively connected with the transmitter;

initiate pairing of the transmitter with the second display device when fewer than the predetermined number of display devices with the second type are included in the first list;

store bonding information associated with the second display device as a result of pairing the second display device with the transmitter in the second list; and

establish a second data communication channel to allow transmission of the analyte values generated by the analyte sensor from the transmitter to the second display device.

18. The system of claim 17, wherein the first type of display device comprises a smart phone and the second type of display device comprises a dedicated display.

19. The system of claim 17, wherein the bonding information associated with the first and the second display devices are used to establish the first and the second data communication channels respectively.

20. The system of claim 17, wherein the processor is further configured to reject the request to establish communication between the transmitter and the first display device when another display device with the first type is actively connected.

21. The system of claim 17, further the processor is further configured to reject the request to establish communication between the transmitter with the second display device when another display device with the second type is actively connected.

22. The system of claim 17, wherein the processor is further configured to:

add the first display device to the first list after connecting the transmitter with the first display device; and

add the second display device to the first list after connecting the transmitter with the second display device.

23. The system of claim 17, wherein the processor is further configured to:

receive a request to remove the first display device from the first list;

terminate communications with the first display device; and

removing the first display device from the first list.

24. The system of claim 17, wherein:

the plurality of display devices are connected with the transmitter periodically at communication intervals; and

the bonding information is stored in second list as a result of the connecting.