Analyte monitoring system and methods

• US 7,928,850 B2
• Filed: 05/08/2008
• Issued: 04/19/2011
• 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: He, Lei, Sloan, Mark K., Hayter, Gary, Fennell, Martin J.
• Primary Examiner(s): Bugg; George A
• Assistant Examiner(s): Yacob; Sisay
• Application Number:
  US12/117,665
• Publication Number:
  US 20080278331A1
• Time in Patent Office: 1,076 Days
• Field of Search: 340/539.1, 340/573.1, 340/500, 340/540, 600/310, 600/316, 600/345, 600/347, 600/551, 73/10.1
• US Class Current: 340/573.1
• 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 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/14503 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence
• 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 5/14865 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

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

Claims

1. An analyte monitoring device, comprising:

a counter; and

a data processing section coupled to the counter, wherein the data processing section is configured to;

establish a communication range between the analyte monitoring device and a remote device when the remote device is placed within a predetermined distance from the analyte monitoring device;

determine when a transcutaneously positioned analyte sensor is initialized;

increment a count stored in the counter based on the determination;

associate the incremented count with the transcutaneously positioned analyte sensor; and

transmit, using a communication module, the incremented count to the remote device when the remote device is placed within the established communication range, wherein the incremented count is used to verify the identity of the new transcutaneously positioned analyte sensor.

2. The device of claim 1 wherein the counter includes a nonvolatile memory unit.

18. The device of claim 1 wherein the predetermined distance is approximately one foot or less.

3. A control device for communicating with an analyte monitoring unit, comprising:

a data communication section configured to establish a communication range with the analyte monitoring unit when the control unit is placed within a predetermined distance from the analyte monitoring unit and further configured to receive data, including a count information associated with a transcutaneously positioned analyte sensor, when the control device is placed within the established communication range; and

a processing unit coupled to the data communication section to process the received data, the processing unit further configured to compare the count information in the received data with a stored count to verify the identity of the transcutaneously positioned analyte sensor, and when it is determined that the received count information is different than the stored count, the processing unit is configured to generate one or more signals related to the status of the transcutaneously positioned analyte sensor including the identity of the transcutaneously positioned analyte sensor.

4. The device of claim 3 wherein the generated one or more signals include a command to disable the data communication section.

5. The device of claim 3 wherein the generated one or more signals is output to a user.

6. The device of claim 5 including a display unit and wherein the generated one or more signals is displayed on the display unit.

7. The device of claim 5 wherein the one or more signals output includes one or more of a visual indicator, an audible indicator or a vibratory indicator.

19. The device of claim 3 wherein the predetermined distance is approximately one foot or less.

8. A method, comprising:

establishing a communication range between an analyte monitoring device and a remote device when the remote device is placed within a predetermined distance from the analyte monitoring device;

detecting an initialization of a transcutaneously positioned analyte sensor;

associating a count with the transcutaneously positioned analyte sensor;

transmitting the count associated with the transcutaneously positioned analyte sensor to the remote device when the remote device is placed within the established communication range, wherein the count is used to verify the identity of the transcutaneously positioned analyte sensor;

detecting replacement of the transcutaneously positioned analyte sensor;

updating the count based on the detected replacement; and

transmitting the updated count to the remote device when the remote device is placed within the established communication range.

9. The method of claim 8 including storing the updated count.

10. The method of claim 8 including:

detecting a further replacement of the transcutaneously positioned analyte sensor;

further updating the count associated with the detected further replacement transcutaneously positioned analyte sensor; and

transmitting the further updated count to the remote device when the remote device is placed within the established communication range.

20. The method of claim 8 wherein the predetermined distance is approximately one foot or less.

11. A method, comprising:

establishing a communication range between an analyte monitoring device and a remote device when the remote device is placed within a predetermined distance from the analyte monitoring device;

receiving data including a count information associated with a transcutaneously positioned analyte sensor from the analyte monitoring device when the remote device is placed within the established communication range;

comparing the received count information with a stored count information to verify the identity of the transcutaneously positioned analyte sensor; and

generating one or more signals related to the status of the transcutaneously positioned analyte sensor including the identity of the transcutaneously positioned analyte sensor when it is determined that the count information of the received data is different than the stored count information.

12. The method of claim 11 wherein the generated one or more signals includes a command to disable data communication.

13. The method of claim 11 including providing the generated one or more signals to a user.

14. The method of claim 13 including outputting the generated one or more signals.

15. The method of claim 11 including storing the received count information when it is determined that the received count information is different than the stored count information.

16. The method of claim 11 wherein the status of the transcutaneously positioned analyte sensor includes a new transcutaneously positioned analyte sensor detection.

17. The method of claim 11 wherein the generated one or more signals includes prompting a user to replace the transcutaneously positioned analyte sensor.

21. The method of claim 11 wherein the predetermined distance is approximately one foot or less.