Method and System for Providing Analyte Monitoring

• US 20080119708A1
• Filed: 10/25/2006
• Published: 05/22/2008
• Est. Priority Date: 10/25/2006
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Budiman, Erwin S.
• Granted Patent: US 7,630,748 B2
• Time in Patent Office: Days
• US Class Current: 600/365
• 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 5/0022 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 5/1468 using chemical or electrochemical methods, e.g. by polarographic means A61B5/1486 takes precedence
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 20/10 relating to drugs or medications, e.g. for ensuring correct administration to patients
• 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 apparatuses for determining an analyte value are disclosed.

Claims

1. A method, comprising:

monitoring a data stream;

generating a noise-filtered signal associated with the data stream;

detecting a presence of a signal dropout based on the noise filtered signal; and

estimating a noise filtered dropout compensated signal based on the noise filtered signal and the determination of the presence of the signal dropout.

2. The method of claim 1 wherein generating the noise filtered signal includes generating one or more frequency-shaped signals based on the monitored data stream.

3. The method of claim 2 wherein generating the one or more frequency shaped signals include high pass filtering the monitored data stream.

4. The method of claim 1 wherein generating the noise filtered signal is based on one or more previous noise filtered signals.

5. The method of claim 1 further including outputting the noise filtered signal.

6. The method of claim 1 further including outputting the noise filtered dropout compensated signal.

7. The method of claim 1 further including a generating signal associated with detecting the presence of a signal dropout.

8. The method of claim 1 wherein the data stream is associated with a monitored analyte levels of a patient.

9. An apparatus, comprising:

one or more processors; and

a memory for storing instructions which, when executed by the one or more processors, causes the one or more processors to monitor a data stream, generate a noise-filtered signal associated with the data stream, detect a presence of a signal dropout based on the noise filtered signal, and estimate a noise filtered dropout compensated signal based on the noise filtered signal and the determination of the presence of the signal dropout.

10. The apparatus of claim 9 wherein the memory is further configured for storing instructions which, when executed by the one or more processors, causes the one or more processors to generate one or more frequency-shaped signals based on the monitored data stream.

11. The apparatus of claim 10 wherein the memory is further configured for storing instructions which, when executed by the one or more processors, causes the one or more processors to generate the one or more frequency shaped signals by high pass filtering the monitored data stream.

12. The apparatus of claim 9 wherein the memory is further configured for storing instructions which, when executed by the one or more processors, causes the one or more processors to generate the noise filtered signal based on one or more previous noise filtered signals.

13. The apparatus of claim 9 wherein the memory is further configured for storing instructions which, when executed by the one or more processors, causes the one or more processors to output the noise filtered signal.

14. The apparatus of claim 9 wherein the memory is further configured for storing instructions which, when executed by the one or more processors, causes the one or more processors to output the noise filtered dropout compensated signal.

15. The apparatus of claim 9 wherein the memory is further configured for storing instructions which, when executed by the one or more processors, causes the one or more processors to generate a signal associated with detecting the presence of a signal dropout.

16. A system, comprising:

an analyte sensor configured to monitor an analyte of a patient; and

a data processing section operatively coupled to the analyte sensor, the data processing section further including;

one or more processors; and

a memory for storing instructions which, when executed by the one or more processors, causes the one or more processors to monitor a data stream, generate a noise-filtered signal associated with the data stream, detect a presence of a signal dropout based on the noise filtered signal, and estimate a noise filtered dropout compensated signal based on the noise filtered signal and the determination of the presence of the signal dropout.

17. The system of claim 16 wherein the data processing section includes a data transmission unit operatively coupled to one or more processors configured to transmit the data stream.

18. The system of claim 16 wherein the data processing section includes a data receiving unit operatively coupled to the one or more processors and configured to receive the data stream.

19. The system of claim 16 wherein the analyte sensor includes a glucose sensor.

20. The system of claim 16 wherein the memory is further configured for storing instructions which, when executed by the one or more processors, causes the one or more processors to store one or more of the data stream, the noise filtered signal, or the noise filtered dropout compensated signal.