Analyte monitoring system and methods

• US 8,461,985 B2
• Filed: 05/08/2008
• Issued: 06/11/2013
• Est. Priority Date: 05/08/2007
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Fennell, Martin J., He, Lei, Sloan, Mark K.
• Primary Examiner(s): Bugg, George
• Assistant Examiner(s): Yacob, Sisay
• Application Number:
  US12/117,681
• Publication Number:
  US 20080281840A1
• Time in Patent Office: 1,860 Days
• Field of Search: 340/540, 340/539.1, 340/539.14, 340/539.23, 340/384.5, 340/693.9, 340/573.1, 600/300, 600/301, 600481-486, 600500-508, 600529-538, 600544-545, 600/309, 600/316, 600/346, 600/347, 128/903, 128/904, 128/900, 128920-925, 707/E17.05, 707/999.1
• US Class Current: 340/540
• CPC Class Codes: A61B 2560/0271 using a remote monitoring unit
• CPC Class Codes: A61B 2560/0276 Determining malfunction
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: G08B 21/00 Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H04L 47/12 Avoiding congestion; Recovering from congestion

Abstract

Methods and systems for providing data communication in medical systems are disclosed.

Claims

1. A method, comprising:

initiating data transmission from a data communication unit in response to a command received from a remotely located receiver unit, wherein the data communication unit is in signal communication with an analyte sensor configured for transcutaneous positioning to monitor an analyte level, and further, wherein operatively coupling the analyte sensor to the data communication unit and transcutaneously positioning the analyte sensor in fluid contact with interstitial fluid under a skin layer transitions the data communication unit from a low power state to an active state;

detecting the data transmission, wherein the detected data transmission corresponds to at least one of a response data transmission initiated in response to the command received from the receiver unit when the receiver unit is placed within a predetermined distance from the data communication unit, and a periodic data transmission from the data communication unit to the remotely located receiver unit that occurs at a predetermined time interval;

incrementing a count associated with the detected data transmission; and

storing the count in a memory of the data communication unit.

2. The method of claim 1 wherein the count is incremented by one.

3. The method of claim 1 including associating a power supply level information with the stored count.

4. The method of claim 1 including generating a signal associated with the stored count.

5. The method of claim 4 including outputting the generated signal.

6. The method of claim 5 wherein outputting the generated signal includes one or more of visually displaying the generated signal, audibly outputting the generated signal, or vibratorily outputting the generated signal.

7. The method of claim 1 including transmitting the count with the data transmission.

8. The method of claim 7 wherein the count is transmitted periodically with the data transmission.

9. The method of claim 1 including associating a power supply status with the count.

20. The method of claim 1 wherein the data transmission includes glucose data.

21. The method of claim 1 wherein the predetermined distance is approximately one foot or less.

22. The method of claim 3 wherein the power supply level information includes an estimation of the remaining power of a power supply of the data communication unit.

23. The method of claim 1 wherein the predetermined time interval is approximately sixty seconds.

27. The method of claim 1 wherein transcutaneously positioning the analyte sensor in fluid contact with the interstitial fluid to transition the data communication unit from the low power state to the active state includes electrically coupling a conduction trace of the analyte sensor with the data communication unit.

10. A data processing device, comprising:

a counter;

a data communication unit configured to initiate data transmission in response to a command received from a remotely located receiver unit, wherein the data communication unit is in signal communication with an analyte sensor configured for transcutaneous positioning to monitor an analyte level, and further, wherein when the analyte sensor is operatively coupled to the data communication unit and transcutaneously positioned in fluid contact with interstitial fluid under a skin layer, the data communication unit is configured to transition from a low power state to an active state; and

a data processing section coupled to the data communication unit and the counter, the data processing section configured to increment a count stored in the counter with each data transmission by the data communication unit, wherein the data transmission corresponds to at least one of a response data transmission initiated in response to the command received from the receiver unit when the receiver unit is placed within a predetermined distance from the data communication unit, and a periodic data transmission from the data communication unit to the remotely located receiver unit that occurs at a predetermined time interval.

11. The device of claim 10 wherein the counter includes a nonvolatile memory unit.

12. The device of claim 10 wherein the counter includes an EEPROM.

13. The device of claim 10 wherein the data communication unit includes a radio frequency (RF) transceiver.

14. The device of claim 10 wherein the count stored in the counter is incremented by one with each data transmission by the data communication unit.

15. The device of claim 10 including a power supply coupled to the data processing unit, the data communication unit and the counter.

16. The device of claim 15 wherein the count stored in the counter is not erased when the power supply is disabled or in low power state.

17. The device of claim 15 wherein the data processing unit is configured to estimate the power supply life based on the stored count in the counter.

18. The device of claim 10 including an output section for outputting one or more signals associated with the count information.

19. The device of claim 18 wherein the output section includes one or more of a display unit, an audible output section, or a vibratory output section.

24. The device of claim 10 wherein the periodic data transmission includes glucose data.

25. The device of claim 10 wherein the predetermined distance is approximately one foot or less.

26. The device of claim 10 wherein the predetermined time interval is approximately sixty seconds.

28. The device of claim 10 wherein when the analyte sensor is transcutaneously positioned in fluid contact with the interstitial fluid to transition the data communication unit from the low power state to the active state, a conduction trace of the analyte sensor is electrically coupled with the data communication unit.