Method for determining the resolution of blood glucose

• US 7,089,122 B2
• Filed: 02/05/2004
• Issued: 08/08/2006
• Est. Priority Date: 04/04/2003
• Status: Expired due to Fees

• Current Assignee: Intellectual Ventures I LLC (Intellectual Ventures LLC)
• Original Assignee: Transpacific IP Group Limited
• Inventors: Huang, Yin-Chun, Wang, Kuo-Jeng
• Primary Examiner(s): Nghiem, Michael
• Assistant Examiner(s): Sun, Xiuqin
• Application Number:
  US10/771,333
• Publication Number:
  US 20040210401A1
• Time in Patent Office: 915 Days
• Field of Search: 702/23, 204/403.02, 204/403.1, 204/403.01, 600/316, 600/322, 600/347, 514/12, 514/288, 435/193
• US Class Current: 702/23
• CPC Class Codes: G01N 27/3273 Devices therefor, e.g. test element readers, circuitry details not specific to biochemical electrodes G01N33/4875

Abstract

The present invention provides a method for calculating the resolution of blood glucose which corresponding with the peak value of the rising curve. The average peak value is obtained from calculating the plurality of peak value, which determined after the pre-setting sampling time. Then, the average peak value is calculated with the resistance of the measuring circuit, reference resistance, and reference voltage to obtain the resolution of the blood glucose. Furthermore, the mapping table can be fabricated by the different height of maximum peak value and outputted voltage in different presetting sampling time, such that the resolution of blood glucose can be obtained in different outputted voltage values.

Claims

1. A method for determining a resolution of blood glucose, comprising:

obtaining an analog signal source from a blood glucose solution being applied to an amplifier circuit which includes a reference resistance;

transforming said analog signal source into a digital signal;

transmitting said digital signal with a rising curve to obtain an approximate local maximum value of said rising curve;

determining said resolution of blood glucose according to said approximate local maximum value; and

determining an average peak value of a plurality of said approximate local maximum values after a pre-setting sampling time.

2. A method for determining a resolution of blood glucose, comprising:

obtaining an analog signal source from a blood glucose solution being applied to an amplifier circuit which includes a reference resistance;

transforming said analog signal source into a digital signal;

transmitting said digital signal with a rising curve to obtain an approximate local maximum value of said rising curve;

determining said resolution of blood glucose according to said approximate local maximum value; and

providing a mapping table of an outputted voltage and a plurality of approximate local maximum values from a plurality of said rising curves.

3. A method for determining the resolution of blood glucose, comprising:

providing a blood glucose solution for reaction on a test strip to produce an analog signal source;

transmitting said analog signal source into a measuring circuit;

transforming said analog signal source into a digital signal;

outputting said digital signal with a rising curve;

determining an average peak value at an approximate local maximum point of said rising curve after a pre-setting sampling time; and

determining said resolution of blood glucose according to said average peak value.

4. The method according to claim 3, wherein said test strip includes a catalyst.

5. The method according to claim 3, and further comprising:

producing said analog signal source at least in part in response to an oxidation reduction reaction.

6. The method according to claim 3, wherein said measuring circuit includes a reference resistance.

7. The method according to claim 3, wherein said transforming said analog signal source includes transmitting said analog signal source through an analog front end (AFE).

8. The method according to claim 3, and further comprising determining an approximate local maximum value of said rising curve.

9. The method according to claim 8, wherein said approximate local maximum value being a difference between a first time (t₁) and an initial time (t₀) and said difference being larger than zero.

10. The method according to claim 6, wherein said resolution of blood glucose is determined at least in part based on said reference resistance.