METHOD AND APPARATUS FOR PROVIDING DATA PROCESSING AND CONTROL IN MEDICAL COMMUNICATION SYSTEM

• US 20080255808A1
• Filed: 04/14/2008
• Published: 10/16/2008
• Est. Priority Date: 04/14/2007
• 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 8,140,142 B2
• Time in Patent Office: Days
• US Class Current: 702/190
• CPC Class Codes: A61B 2560/0209 adapted for power saving
• 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 5/002 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 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure

Abstract

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

Claims

1. An apparatus, comprising:

a digital filter unit including a first filter stage and a second filter stage, the digital filter unit configured to receive a sampled signal, wherein the first filter stage is configured to filter the sampled signal based on a first predetermined filter characteristic to generate a first filter stage output signal, and further, wherein the second filter stage is configured to filter the first filter stage output signal based on a second predetermined filter characteristic to generate an output signal associated with a monitored analyte level.

2. The apparatus of claim 1 wherein the sampled signal includes an over-sampled signal at a frequency of approximately 4 Hz.

3. The apparatus of claim 1 wherein the digital filter unit includes one of a Finite Impulse Response (FIR) filter, or an Infinite Impulse Response (IIR) filter.

4. The apparatus of claim 1 wherein the first and the second filter stages include a respective first and second down sampling filter characteristics.

5. The apparatus of claim 1 wherein one or more of the first and second filter stages includes down sampling the sampled signal or the first filter stage output signal, respectively.

6. The apparatus of claim 5 wherein the received sampled signal is associated with the monitored analyte level of a user.

7. The apparatus of claim 1 wherein the digital filter unit is configured to receive the sampled signal over a predetermined time interval.

8. The apparatus of claim 7 wherein the predetermined time interval includes one of approximately 30 second, approximately one minute, approximately two minutes, or approximately five minutes.

9. A method, comprising:

receiving a sampled signal associated with a monitored analyte level of a user;

performing a first stage filtering based on the received sampled signal to generate a first stage filtered signal;

performing a second stage filtering based on the generated first stage filtered signal; and

generating a filtered sampled signal.

10. The method of claim 9 wherein the sampled signal includes an over-sampled signal at a frequency of approximately 4 Hz.

11. The method of claim 9 wherein the first and the second stage filtering include a respective first and second down sampling based on one or more filter characteristics.

12. The method of claim 9 wherein the received sampled signal is periodically received over a predetermined time interval.

13. The method of claim 12 wherein the predetermined time interval includes one of approximately 30 second, approximately one minute, approximately two minutes, or approximately five minutes.

14. A system, comprising:

a transmitter unit including a digital filter unit including a first filter stage and a second filter stage, the digital filter unit configured to receive a sampled signal, wherein the first filter stage is configured to filter the sampled signal based on a first predetermined filter characteristic to generate a first filter stage output signal, and further, wherein the second filter stage is configured to filter the first filter stage output signal based on a second predetermined filter characteristic to generate an output signal associated with a monitored analyte level; and

a receiver unit configured to receive the output signal.

15. The system of claim 14 wherein the sampled signal includes an over-sampled signal at a frequency of approximately 4 Hz.

16. The system of claim 14 wherein the digital filter unit includes one of a Finite Impulse Response (FIR) filter, or an Infinite Impulse Response (IIR) filter.

17. The system of claim 14 wherein the first and the second filter stages include a respective first and second down sampling filter characteristics.

18. The system of claim 14 wherein one or more of the first and second filter stages includes down sampling the sampled signal or the first filter stage output signal, respectively.

19. The system of claim 18 wherein the received sampled signal is associated with the monitored analyte level of a user.

20. The system of claim 14 wherein the receiver unit is in signal communication with the transmitter unit, the receiver unit is configured to generate a glucose related data associated with the output signal.