Method for determining the concentration of blood glucose

• US 7,222,024 B2
• Filed: 04/10/2003
• Issued: 05/22/2007
• Est. Priority Date: 12/31/2002
• Status: Active Grant

• Current Assignee: Intellectual Ventures I LLC (Intellectual Ventures LLC)
• Original Assignee: Transpacific IP Group Limited
• Inventors: Wang, Kuo-Jeng, Chen, Jian-Tsz
• Primary Examiner(s): Moran; Marjorie A.
• Application Number:
  US10/410,292
• Publication Number:
  US 20040126832A1
• Time in Patent Office: 1,503 Days
• Field of Search: None
• US Class Current: 702/23
• CPC Class Codes: C12Q 1/006 for glucose
• CPC Class Codes: C12Q 1/54 involving glucose or galactose

Abstract

The present invention provides a method for determining concentration of blood glucose by using the change in the rising time. The chemical reaction between the blood glucose and enzyme within the test strip to generate the analog source that used to determine the concentration of the blood glucose in the measuring meter. Thus, the rising curve can be obtained after the analog source is treated, such that the concentration of the blood glucose can be determined.

Claims

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

providing a blood glucose solution on a test strip comprising an enzyme;

detecting a change in accumulation of a product of a chemical reaction occurring in response to said blood glucose solution on said test strip;

representing said change in accumulation of a product as an analog signal;

converting said analog signal to a digital signal;

converting said digital signal to a wave pattern having a first time and a second time, wherein the first time comprises an initial time and wherein the second time corresponds to a peak value;

calculating a difference value between said first time and said second time, wherein said difference value comprises a rising time of said wave pattern; and

correlating a concentration of said blood glucose to said rising time.

2. The method of claim 1, wherein said chemical reaction comprises an oxidation-reduction reaction.

3. The method of claim 1, further comprising displaying said digital signal.