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

• US 10,820,841 B2
• Filed: 08/09/2018
• Issued: 11/03/2020
• 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 Alan, McGarraugh, Geoffrey V.
• Primary Examiner(s): Cheng, Jacqueline
• Assistant Examiner(s): Portillo, Jairo H
• Application Number:
  US16/059,571
• Publication Number:
  US 20190083012A1
• Time in Patent Office: 817 Days
• Field of Search: 600365
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 2560/0242 adapted to measure environmental factors, e.g. temperature, pollution
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157 disposable multilayered or laminated electrodes G01N27/307; details of handling chemical test elements G01N33/4875
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes 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 5/1473 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 5/6849 in combination with a needle set
• 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 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16B 99/00 Subject matter not provided for in other groups of this subclass
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

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

Claims

1. A method of indicating a rate of change in a user'"'"'s analyte level with reduced noise-induced variation, comprising:

determining, with a processor, a first filtered value associated with analyte related data measured by an analyte sensor during a first predetermined time period;

determining, with a processor, a second filtered value associated with analyte related data measured by the analyte sensor during a second predetermined time period, wherein the first predetermined time period is greater than the second predetermined time period;

determining, with a processor, a rate of change of an analyte level based, at least in part, on the analyte related data, and a rate of change variation;

generating, with the processor, a weighted average value based upon the first filtered value and the second filtered value such that the first filtered value is weighted more than the second filtered value when the analyte level rate of change is greater than the analyte level rate of change variation and such that the second filtered value is weighted more than the first filtered value when the analyte level rate of change is less than the analyte level rate of change variation,

determining, with the processor, a filtered analyte value based at least in part on the weighted average value and a predetermined parameter to reduce noise-induced variation; and

dynamically displaying an indication based on the filtered analyte value to a user on a display of an analyte monitoring device.

2. The method of claim 1, wherein the indication is a trend arrow.

3. The method of claim 1, wherein the first predetermined time period includes the second predetermined time period.

4. The method of claim 1, wherein the first predetermined time period is fifteen minutes and the second predetermined time period is two minutes.

5. The method of claim 1, wherein determining the filtered rate of change value includes performing a rate variance filtering.

6. The method of claim 1, wherein the rate of change variation is a standard deviation.

7. An apparatus including an analyte monitoring device, comprising:

a communication unit adapted to receive analyte related data from an analyte sensor, and

a processor coupled to the communication unit, the processor configured to;

determine a first filtered value associated with analyte related data measured by an analyte sensor during a first predetermined time period;

determine a second filtered value associated with analyte related data measured by the analyte sensor during a second predetermined time period, wherein the first predetermined time period is greater than the second predetermined time period;

determine a rate of change of an analyte level based, at least in part, on the analyte related data, and a rate of change variation;

generate a weighted average value based upon the first filtered value and the second filtered value such that the first filtered value is weighted more than the second filtered value when the analyte level rate of change is greater than the analyte level rate of change variation and such that the second filtered value is weighted more than the first filtered value when the analyte level rate of change is less than the analyte level rate of change variation,

determine a filtered analyte value based at least in part on the weighted average value and a predetermined parameter to reduce noise-induced variation; and

cause the dynamic display of an indication based on the filtered analyte value to a user.

8. The apparatus of claim 7, wherein the indication is a trend arrow.

9. The apparatus of claim 7, wherein the first predetermined time period includes the second predetermined time period.

10. The apparatus of claim 7, wherein the first predetermined time period is fifteen minutes and the second predetermined time period is two minutes.

11. The apparatus of claim 7, wherein the processing unit is configured to determine the filtered rate of change value by performance of a rate variance filtering.

12. The apparatus of claim 7, wherein the rate of change variation is a standard deviation.