Control Liquid Identifying Method and Analysis Device

• US 20100264942A1
• Filed: 10/31/2008
• Published: 10/21/2010
• Est. Priority Date: 10/31/2007
• Status: Abandoned Application

• Current Assignee: ARKRAY, Inc
• Original Assignee: ARKRAY, Inc
• Inventors: Okami, Akiko, Matsuda, Hirokazu
• Application Number:
  US12/740,898
• Publication Number:
  US 20100264942A1
• Time in Patent Office: Days
• US Class Current: 324/693
• CPC Class Codes: G01N 27/3273 Devices therefor, e.g. test element readers, circuitry details not specific to biochemical electrodes G01N33/4875

Abstract

Disclosed is a method of distinguishing between a specimen and a control solution in a system for analyzing a specific component within the specimen using an analysis tool. The distinguishing method includes a first step (S2) of measuring a response value when a voltage is applied between first and second electrodes of the analysis tool, a second step (S3) of comparing a maximum value of the response value or a value associated with the maximum value to a predetermined threshold value, and a third step (S4) of distinguishing between the specimen and the control solution based on the result of the comparison between the maximum value or the associated value and the threshold value.

Claims

1. A method of distinguishing between a control solution and a specimen in a system of analyzing a specific component within the specimen using an analysis tool, the method comprising:

a first step of measuring a response value when a voltage is applied between first and second electrodes in the analysis tool;

a second step of comparing a maximum value of the response value or a value associated with the maximum value to a predetermined threshold value; and

a third step of distinguishing between the specimen and the control solution based on a comparison result between the maximum value or the associated value and the threshold value.

2. The method according to claim 1, wherein in the first step, a voltage having a waveform including at least one pulse is applied.

3. The method according to claim 2, wherein in the first step, a voltage having a waveform including plural pulses is applied.

4. The method according to claim 3, wherein the waveform is an alternating waveform.

5. The method according to claim 1, the analysis tool further includes third and fourth electrodes that are used to analyze the specimen.

6. The method according to claim 1, wherein the specimen comprises whole blood, and the control solution comprises an electrolyte having a higher concentration than that of the whole blood.

7. An analyzer that analyzes a specific component within a specimen using an analysis tool, the analyzer comprising:

a power source that applies a voltage between first and second electrodes in the analysis tool;

a measurement unit that measures a response value when a voltage is applied between the first and second electrodes; and

a computation unit that distinguishes between the specimen and the control solution by comparing a maximum value of the response value or a value associated with the maximum value to a predetermined threshold value.

8. The analyzer according to claim 7, wherein the power source comprises an AC power source.