Method and apparatus for providing data processing and control in a medical communication system

• US 20080312845A1
• Filed: 05/14/2008
• Published: 12/18/2008
• Est. Priority Date: 05/14/2007
• 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., McGarraugh, Geoffrey V., Mazza, John C., Naegeli, Andrew H.
• Application Number:
  US12/152,673
• Publication Number:
  US 20080312845A1
• Time in Patent Office: Days
• US Class Current: 702/23
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• 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: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/6849 in combination with a needle set
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/40 for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
• CPC Class Codes: G16H 40/63 for local operation

Abstract

Methods and apparatus for providing data processing and control for use in a medical communication system are provided.

Claims

1. A method, comprising:

determining a variance between at least two sensitivity values associated with an in vivo analyte sensor;

comparing the determined variance with a predetermined sensitivity range; and

determining a composite sensitivity value based on the two sensitivity values associated with the analyte sensor when the variance between the two sensitivity values are within the predetermined sensitivity range.

2. The method of claim 1 wherein the two sensitivity values are determined sequentially.

3. The method of claim 1 wherein each of the two sensitivity values is associated with a calibration event of the analyte sensor.

4. The method of claim 3 wherein the calibration event comprises using one or more withdrawn blood samples having substantially the same glucose value derived from the analyte sensor.

5. The method of claim 3 wherein the calibration events associated with the two sensitivity values are separated in time by a predetermined time period.

6. The method of claim 5 wherein the predetermined time period is associated with a preset calibration schedule of the transcutaneously positioned analyte sensor in continuous fluid contact with an analyte of a user.

7. The method of claim 1 wherein when the variance between the two sensitivity values are determined to be outside the predetermined sensitivity range, requesting a blood glucose value.

8. The method of claim 7 wherein requesting a blood glucose value includes prompting a user to input a blood glucose information.

9. The method of claim 7 including:

receiving the blood glucose value;

determining a further sensitivity value associated with the received blood glucose value; and

comparing the further sensitivity value with a predefined range of the respective one or more sensitivity values.

10. The method of claim 9 wherein when the determined further sensitivity value is within the predefined range of the respective one or more two sensitivity values, determining the composite sensitivity value based on the determined further sensitivity value and one of the two sensitivity values.

11. The method of claim 10 wherein the determined composite sensitivity includes a weighted average of the further sensitivity value and the one of the two sensitivity values.

12. An apparatus, comprising:

a processing unit configured to determine a variance between at least two sensitivity values associated with a transcutaneously positionable in vivo analyte sensor, to compare the determined variance with a predetermined sensitivity range, and to determine a composite sensitivity value based on the two sensitivity values associated with the analyte sensor when the variance between the two sensitivity values are within the predetermined sensitivity range.

13. The apparatus of claim 12 wherein the two sensitivity values are determined sequentially.

14. The apparatus of claim 12 wherein each of the two sensitivity values is associated with a respective calibration event of the analyte sensor.

15. The apparatus of claim 14 wherein each calibration event associated with the two sensitivity values are separated by a predetermined time period.

16. The apparatus of claim 15 wherein the predetermined time period defines one or more of a preset calibration schedule for calibrating the analyte sensor after positioning the sensor under a skin layer of a user for a predefined continuous time period, or one or more user defined calibration event for calibrating the analyte sensor during the predefined continuous time period.

17. The apparatus of claim 12 wherein when the variance between the two sensitivity values are determined to be outside the predetermined sensitivity range, the processing unit is further configured to request a blood glucose value.

18. The apparatus of claim 17 wherein the processing unit is configured to receive the blood glucose value, to determine a further sensitivity value associated with the received blood glucose value, and to compare the further sensitivity value with a predefined range of the one or more sensitivity values.

19. The apparatus of claim 17 including a blood glucose meter in communication with the processing unit for providing the requested blood glucose value.

20. The apparatus of claim 19 including a housing, the blood glucose meter and the processing unit provided substantially within the housing.

21. The apparatus of claim 19 wherein when the determined further sensitivity value is within the predefined range of the one or more two sensitivity values, the processing unit determines the composite sensitivity value based on the determined further sensitivity value and one of the two sensitivity values.

22. The apparatus of claim 21 wherein the determined composite sensitivity includes a weighted average of the further sensitivity value and the one of the two sensitivity values.

23. The apparatus of claim 22, wherein the weighted average comprises assigning a first value to the further sensitivity value and a second value to the one of the two sensitivity values.

24. The apparatus of claim 23 wherein the first value and the second value are different.

25. The apparatus of claim 12 wherein the analyte sensor includes a glucose sensor.