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

• US 20080287763A1
• Filed: 05/14/2008
• Published: 11/20/2008
• Est. Priority Date: 05/14/2007
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Hayter, Gary
• Granted Patent: US 9,125,548 B2
• Time in Patent Office: Days
• US Class Current: 600/365
• CPC Class Codes: A61B 2560/0242 adapted to measure environmental factors, e.g. temperature, pollution
• CPC Class Codes: A61B 2560/0252 using ambient temperature
• 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 5/14503 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 5/1451 for interstitial fluid
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/7221 Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take precedence
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: A61B 5/7405 using sound
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: A61B 5/7455 characterised by tactile indication, e.g. vibration or electrical stimulation

Abstract

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

Claims

1. A method of continuously monitoring glucose of an individual, comprising:

detecting a signal stream from a transcutaneously positioned in vivo analyte sensor;

defining a predetermined time period;

monitoring the signal stream for one or more predetermined conditions associated with the signal stream during the predetermined time period; and

when the one or more predetermined conditions associated with the signal stream is detected, outputting a notification to the individual, wherein the each of the one or more predetermined conditions are associated with an adverse data condition associated with the analyte sensor.

2. The method of claim 1 wherein the one or more predetermined conditions includes an out of range temperature value associated with the detected signal stream, a persistent low detected signal stream, or an error condition of the analyte sensor.

3. The method of claim 2 wherein the persistent low detected signal stream includes at least two consecutive signals from the detected signal stream that are below a predetermined signal level.

4. The method of claim 3 wherein the predetermined signal level is associated with a failed analyte sensor state.

5. The method of claim 2 wherein the error condition of the analyte sensor includes unacceptable data quality of the detected signal stream.

6. The method of claim 1 wherein the notification is output to the user when the same one or more predetermined conditions are detected more than once during the predetermined time period.

7. The method of claim 1 wherein outputting the notification to the user includes one or more of displaying the generated output signal, audibly outputting the generated output signal or vibratorily outputting the generated output signal.

8. The method of claim 1 wherein the predetermined time period is less than approximately one hour from the positioning of the analyte sensor in continuous contact with an analyte of the individual.

9. The method of claim 1 wherein the notification to the individual includes an indication to replace the analyte sensor.

10. The method of claim 1 wherein at least a portion of the analyte sensor is positionable under a skin surface of the individual during the predetermined time period.

11. The method of claim 1 wherein at least a portion of the analyte sensor is positionable under a skin surface of the individual for at least approximately three days.

12. The method of claim 1 wherein at least a portion of the analyte sensor is positionable under a skin surface of the individual for at least approximately five days.

13. The method of claim 1 wherein at least a portion of the analyte sensor is positionable under a skin surface of the individual for at least approximately seven days.

14. A glucose monitoring system, comprising:

an in vivo analyte sensor at least a portion of which is configured to be positioned under a skin layer of an individual; and

a processing unit operatively coupled to the analyte sensor, the processing unit configured to detect a signal stream from the analyte sensor, to monitor the signal stream for one or more predetermined conditions associated with the signal stream during a predetermined time period, when the one or more predetermined conditions associated with the signal stream is detected, to generate a notification for output to the individual, wherein the each of the one or more predetermined conditions are associated with an adverse data condition associated with the analyte sensor.

15. The system of claim 14 wherein the one or more predetermined conditions includes an out of range temperature value associated with the detected signal stream, a persistent low detected signal stream, or an error condition of the analyte sensor.

16. The system of claim 15 wherein the persistent low detected signal stream includes at least two consecutive signals from the detected signal stream that are below a predetermined signal level.

17. The system of claim 16 wherein the predetermined signal level is associated with a failed analyte sensor state.

18. The system of claim 15 wherein the error condition of the analyte sensor includes unacceptable data quality of the detected signal stream.

19. The system of claim 14 including an output unit operatively coupled to the processing unit, the output unit configured to output the notification to the individual when the same one or more predetermined conditions are detected more than once during the predetermined time period.

20. The system of claim 19 wherein the output unit is configured to output visual output signal, an audible output signal or a vibratory output signal corresponding to the notification.

21. The system of claim 14 wherein the predetermined time period is less than approximately one hour from the positioning of the analyte sensor in continuous contact with an analyte of the individual.

22. The system of claim 19 wherein the output notification includes an indication to replace the analyte sensor.

23. The system of claim 14 wherein at least a portion of the analyte sensor is positionable under a skin surface of the individual for at least approximately three days.

24. The system of claim 14 wherein at least a portion of the analyte sensor is positionable under a skin surface of the individual for at least approximately five days.

25. The system of claim 14 wherein at least a portion of the analyte sensor is positionable under a skin surface of the individual for at least approximately seven days.