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Optical analysis reading device

A reading device and optical analysis technology, which is applied in the direction of chemical reaction of materials for analysis, etc., can solve the problem of inability to compare test results, and achieve the effects of intuitive display results, low cost and simple operation.

Inactive Publication Date: 2009-09-30
ABON BIOPHARM HANGZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the various detection devices above have solved the problem of reading the detection results intuitively and conveniently from a certain level, when using a photodetector, they can only detect the signal on one area, making it impossible to compare the detection results; When two or more photodetectors are used, the signals on multiple areas can be detected and compared

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Such as figure 1 As shown, the shape of the optical analysis reading device is pen-shaped. In terms of appearance, the device includes a housing 1 made of opaque synthetic plastic, a cover 2, a liquid crystal display 3 and a battery 4. The liquid crystal display 3 can display the analysis result information in a qualitative or quantitative manner. When the test is started, the cover 2 is removed, the liquid sample comes into contact with the water-absorbing stick at the front end of the reading device, and the reading device is activated at the same time. When the liquid in the water-absorbent stick is transferred to the reagent strip 5 inside the housing 1, the reagent strip 5 can be used to detect the presence or absence of a sample. After the test is completed, the test result can be displayed on the liquid crystal display 3 to display the final result, and at the same time, the battery 4 can be peeled out of the reading device to avoid electric leakage.

[0066] The in...

Embodiment 2

[0069] This embodiment describes the preferred configuration in Embodiment 1 in more detail. The light detector 6 is a photodiode (PD), and the light source 7 is a light emitting diode (LED). Such as image 3 with Figure 4 As shown, the reading device includes a PD and three LED lights. The light emitted from the first LED 71 illuminates the reference area 51 on the reagent strip 5, the light emitted from the second LED 72 illuminates the detection area 52 of the reagent strip 5, and the light emitted from the third LED 73 illuminates the reagent strip 5的控制区53。 The control area 53. The opaque fence 8 separates each LED light optically, ensuring that each LED light can only illuminate the corresponding area. Figure 5 The spatial relationship between the LED lamp and the PD is shown. There is a partition 9 between the LED lamp and the PD to prevent the light from the light source 7 from directly irradiating the PD. Any light incident on the reagent strip 5 at an angle β will be re...

Embodiment 3

[0071] In Embodiment 3, the effective area of ​​the photodetector 6 is 1.5 mm×1.5 mm. The light source 7 provides light, and at least part of the light has a wavelength of 635 nm. The material used for the partition assembly 10 is black nylon.

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Abstract

The invention relates to an optical analysis reading device, which comprises at least one light source capable of being incident to a reagent strip, wherein the reagent strip comprises a first area, a second area and a third area which are spatially separated; the light source comprises three light-emitting diodes corresponding to the first area, the second area and the third area on the reagent strip respectively; and the device also comprises an optical detector capable of receiving reflected light of the three areas on the reagent strip. The device has low manufacturing cost, is easy to produce, has simple operation and intuitive display result, breaks through the conventional combination of two optical detectors and three light sources, optimizes the configuration of the optical detector, and achieves good effect.

Description

Technical field [0001] The invention relates to a reading device for detecting whether a sample contains an analyte and a method of use thereof, and in particular to an electronic reading device that uses an optical method for measurement. Background technique [0002] At present, disposable analytical devices suitable for home testing of analytes are widely available on the market, including products for detecting early pregnancy and drug abuse. [0003] EP291194 discloses a cross-flow immunoassay device sold by Unipath Company under the trade name CLEARBLUE, which is used to measure the progesterone human chorionic gonadotropin (HCG). The immunoassay device disclosed therein includes a porous carrier containing a particle-labeled analyte-specific binding reagent, which can move freely in a humid state, and an unlabeled binding reagent for the same analyte, which is fixed on the unlabeled The detection area or test area downstream of the dedicated binding reagent. The liquid sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/75
Inventor A·P·菲兰陈英斌
Owner ABON BIOPHARM HANGZHOU
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