METHOD AND SYSTEM FOR INTELLIGENTLY IDENTIFYING AND READING AN IMMUNOCHROMATOGRAPHIC STRIP AND APPLICATION THEREOF

• US 20120262716A1
• Filed: 08/17/2010
• Published: 10/18/2012
• Est. Priority Date: 12/22/2009
• Status: Abandoned Application

• Current Assignee: Guangzhou Wondfo Biotech. Co., Ltd.
• Original Assignee: Guangzhou Wondfo Biotech. Co., Ltd.
• Inventors: Wang, Jihua, Li, Wenmei
• Application Number:
  US13/517,393
• Publication Number:
  US 20120262716A1
• Time in Patent Office: Days
• US Class Current: 356/432
• CPC Class Codes: G01N 21/8483 Investigating reagent band test-element handling not specific to a test method G01N33/4875; analytical elements specific to chemical analysis of biological material G01N33/52; autometer with reagent band G01N35/04

Abstract

A method and system for intelligently identifying and reading an immunochromatographic strip is disclosed. The method includes the following steps: (a) preparing an immunochromatographic strip provided with a bar code, that is, setting a bar code on an immunochromatographic strip to form a bar code layer; (b) identifying the immunochromatographic strip provided with a bar code through a bar code identification circuit, and dispatching an analysis program corresponding to the type of the immunochromatographic strip provided with a bar code; (c) transmitting visible light to irradiate the immunochromatographic strip provided with a bar code through a light-emitting diode (LED) circuit controlled by a central processing unit; receiving reflected or transmitted light through a photoelectrical sensor and converting the received light into electrical signals; and then amplifying the electrical signals through a signal amplification circuit and transmitting the amplified signals to the central processing unit in order to analyze the signals through the analysis program dispatched in step (b); and (d) outputting an analysis result.

Claims

1. A method for intelligently identifying and reading an immunochromatographic strip, comprising the following steps:

(1) setting a bar code on a strip for immunochromatography to form a bar code layer, and thus to obtain the immunochromatographic strip provided with the bar code;

(2) identifying the immunochromatographic strip provided with the bar code by a bar code identification circuit, and dispatching an analysis program corresponding to the type of the immunochromatographic strip provided with the bar code;

(3) transmitting visible light to irradiate the immunochromatographic strip provided with the bar code through a light-emitting diode circuit controlled by a central processing unit, and receiving the reflected or transmitted light through a photoelectric sensor and converting the received light into electrical signals, and then amplifying the electrical signals through a signal amplification circuit and transmitting the amplified signals to the central processing unit in order to analyze the amplified signals through the analysis program dispatched in step (2);

(4) outputting an analysis result.

2. The method according to claim 1, wherein a particular process of the identifying of step (2) is that the immunochromatographic strip provided with the bar code is inserted into a strip test connector, and a power switch of the bar code identification circuit is closed by a bar code interface circuit, and light emitted by a light source in the bar code identification circuit will irradiate the bar code of the immunochromatographic strip provided with the bar code through a lens, and the reflected light is converted to an electrical signal by a photoelectric converter, and then the electrical signal is transmitted to the central processing unit by a amplification and shaping circuit.

3. The method according to claim 1, wherein the method comprises a step of storing the analysis result.

4. A system for implementing the method for intelligently identifying and reading an immunochromatographic strip according to claim 1, wherein the system consists of the immunochromatographic strip provided with the bar code and a detection and analysis device, and the immunochromatographic strip provided with the bar code can be movably inserted into a strip test connector of the detection and analysis device;

the detection and analysis device consists of a housing and a measuring and controlling circuit installed within the housing;

a LCD display screen and a strip test connector are provided on a surface of the housing;

the measuring and controlling circuit comprises a power supply circuit, a photoelectric sensor, a signal amplification circuit, a LED circuit and a central processing unit;

the power supply circuit, the LCD display screen and the LED circuit are connected with the central processing unit respectively, and the photoelectric sensor, the signal amplification circuit and the central processing unit are connected successively;

wherein, the measuring and controlling circuit further comprises a bar code identification circuit connecting with the central processing unit.

5. The system according to claim 4, wherein the measuring and controlling circuit further comprises a data storage circuit connected with the central processing unit.

6. The system according to claim 4, wherein the central processing unit is a central processing unit with a function of storing data.

7. The system according to claim 4, wherein the bar code identification circuit comprises a switch, a light source, a lens, a photoelectric converter, an amplification and shaping circuit and a bar code interface circuit;

the light source, the switch and the bar code interface circuit are connected successively, and the bar code interface circuit is controlled by the central processing unit;

the lens and the photoelectric converter are disposed on a same side of the light source;

the photoelectric converter is connected with the amplification and shaping circuit which is connected with the central processing unit by the bar code interface circuit.

8. The system according to claim 4, wherein the power supply circuit is a removable battery.

9. The system according to claim 6, wherein the measuring and controlling circuit further comprises a voice circuit connecting with the central processing unit.

10. An application of the system according to claim 9 in the field of medical tests.