ANALYTE DEVICES AND METHODS

• US 20080161666A1
• Filed: 12/29/2006
• Published: 07/03/2008
• Est. Priority Date: 12/29/2006
• Status: Abandoned Application

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Hayter, Gary, Feldman, Benjamin J., Peyser, Thomas A., Taub, Marc B., Mazza, John C., Naegeli, Andrew H.
• Application Number:
  US11/618,706
• Publication Number:
  US 20080161666A1
• Time in Patent Office: Days
• US Class Current: 600/365
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes

Abstract

Analyte monitoring devices and methods are provided. Embodiments include devices and methods to evaluate the suitability of calibration periods of time.

Claims

1. An analyte monitoring system, the system comprising:

an analyte sensor;

a processor coupled to the sensor to determine the concentration of analyte; and

a user interface to present analyte information to a user;

wherein the system is configured to evaluate calibration criteria.

2. The analyte monitoring system of claim 1, wherein calibration criteria comprises analyte concentration or analyte rate of change or analyte concentration and analyte rate of change.

3. The analyte monitoring system of claim 2, wherein calibration criteria comprises analyte concentration and analyte rate of change.

4. The analyte monitoring system of claim 3, wherein the analyte is glucose.

5. The analyte monitoring system of claim 4, wherein the system is configured to determine the suitability of the system for calibration based on whether glucose concentration is in the range from about 60 mg//dL and 300 mg/dL.

6. The analyte monitoring system of claim 5, wherein the system is suitable if glucose concentration is in the range from about 60 mg//dL and 300 mg/dL.

7. The analyte monitoring system of claim 4, wherein the system is configured to determine the suitability of the system for calibration based on whether the glucose rate of change is less than about 2 mg/dL/minute.

8. The analyte monitoring system of claim 5, wherein the system is suitable if the glucose rate of change is less than about 2 mg/dL/minute.

9. The analyte monitoring system of claim 1, wherein the system is configured to prevent presentation of analyte concentration to a user until calibration criteria is satisfied.

10. The analyte monitoring system of claim 9, wherein the system is configured to prevent presentation of analyte information to a user until the system is calibrated.

11. The analyte monitoring system of claim 1, wherein the system further comprises a calibration module.

12. The analyte monitoring system of claim 1, wherein the calibration module is an analyte test strip reader.

13. The analyte monitoring system of claim 1, further comprising a control unit coupled to the sensor.

14. The analyte monitoring system of claim 13, wherein the control unit comprises a transmitter or transceiver.

15. The analyte monitoring system of claim 14, wherein the system comprises a receiver to receive analyte information from the control unit.

16. The analyte monitoring system of claim 1, wherein the system prevents calibration until calibration criteria acceptance.

17. A glucose monitoring system comprising:

a glucose sensor; and

an algorithm embodied on a computer readable medium to evaluate the suitability of calibration periods of time to calibrate the sensor.

18. The system of claim 17, wherein the algorithm evaluates calibration criteria.

19. The system of claim 18, wherein calibration criteria comprises glucose concentration.

20. The system of claim 18, wherein calibration criteria comprises glucose rate of change.

21. The system of claim 17, wherein the sensor is a transcutaneous sensor.

22. The system of claim 21, wherein the system is configured to restrict calibration events to periods of time of suitability.

23. A glucose monitoring system programmed to evaluate calibration criteria comprising suitable rates of change of glucose.

24. The system of claim 23, wherein the rate of change of glucose comprises whether the glucose rate of change is less than about 2 mg/dL/minute.

25. The system of claim 24, wherein the criteria is suitable if the glucose rate of change is less than about 2 mg/dL/minute.

26. The system of claim 25, wherein the system is configured to prevent presentation of analyte concentration information to a user the rate of change criteria is suitable.

27. The system of claim 25, wherein the system is programmed to prevent presentation of analyte information to a user until the system is calibrated.

28. The system of claim 23, wherein the system further comprises a calibration module.

29. The system of claim 28, wherein the calibration module is an analyte test strip reader.

30. A method of calibrating an analyte monitoring system, the method comprising:

evaluating calibration criteria;

determining the suitability of calibration periods of time based on the evaluated criteria; and

calibrating the analyte monitoring system if a period of time is determined suitable for calibration.

31. The method of claim 30, comprising not calibrating the system if a period of time is determined to be unsuitable.

32. The method of claim 30, wherein the method comprises evaluating analyte concentration or analyte rate of change or analyte concentration and analyte rate of change.

33. The method of claim 32, wherein calibration criteria comprises analyte concentration and analyte rate of change.

34. The method of claim 33, wherein the analyte is glucose.

35. The method of claim 33, wherein criteria comprises determining whether the concentration ranges from about 60 mg//dL and 300 mg/dL.

36. The method of claim 35, wherein criteria comprises determining whether rate of change is less than about 2 mg/dL/minute.

37. The method of claim 36, further comprising masking the presentation of analyte concentration to a user until calibration criteria is satisfied.