WO2004095009A1 - 光学検査装置 - Google Patents
光学検査装置 Download PDFInfo
- Publication number
- WO2004095009A1 WO2004095009A1 PCT/JP2004/005952 JP2004005952W WO2004095009A1 WO 2004095009 A1 WO2004095009 A1 WO 2004095009A1 JP 2004005952 W JP2004005952 W JP 2004005952W WO 2004095009 A1 WO2004095009 A1 WO 2004095009A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sample
- light
- optical
- sample tube
- inspection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/82—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a precipitate or turbidity
Definitions
- the present invention relates to an optical inspection device that inspects a sample placed in a sample tube for the presence or absence of an inspection object that causes an optical change such as white precipitation or fluorescence.
- the LAMP method not only has extremely high amplification efficiency, but also has the effect of elongating and synthesizing the gene (DNA) in a sample tube with pyrophosphate ions released from the substrate (dNTPs) and magnesium in the reaction solution. A large amount of magnesium pyrophosphate, a by-product that combines with ions, is generated, and cloudiness and white precipitation are observed in the sample tube.
- FIG. 8 is an explanatory diagram showing a main part of an inspection apparatus for detecting the degree of cloudiness and white precipitation of a sample depending on the presence or absence of amplification in the LAMP method in real time as the reaction proceeds.
- the optical inspection device 31 is provided with a plurality of observation holes 35 perpendicular to each of the plurality of arrangement holes 34 for erecting the sample tubes 33 formed in the reaction block 32.
- a sample tube is formed on the optical axis passing through each observation through hole 35.
- a light emitting element 36 for irradiating the detection light 33 and a light receiving element 37 for detecting the detection light transmitted through the sample tube 33 are arranged.
- each sample is put in the sump tubes 33 and arranged in the reaction block 32, and while the light emitted from the light emitting element 36 and transmitted through the sample tube 33 is detected by the light receiving element 37,
- the reaction is carried out under the specified temperature conditions, the sample in which gene amplification has progressed produces cloudiness and white precipitation, and the transmitted light intensity decreases.Therefore, the presence or absence of cloudiness and white precipitation is detected based on the change in the amount of light. If white turbidity / white precipitation occurs, it can be determined that the inspection target exists.
- the change in the light intensity detected by the light receiving element 37 may be caused not only by the white turbidity and white precipitation of the sample, but also by the change in the optical characteristics of the light emitting element 36 and the light receiving element 37. .
- reaction block 32 since the reaction block 32 is heated, there is a high possibility that the optical characteristics of the light emitting element 36 and the light receiving element 37 are changed by the influence of the temperature.
- the light-emitting element 3 Since optical axis alignment is required for as many as 16 optical elements, each including 6 and 8 light-receiving elements 37, there is a problem that the optical axis alignment is very troublesome at the stage of assembling the apparatus.
- the turbidity is measured based on only the transmitted light intensity by the light receiving element 37, the measurement is not possible if other external factors, for example, clouding and bubbles are formed in the sample tube 33. Be accurate.
- the present invention can accurately detect the presence or absence of white turbidity, white sedimentation, or fluorescence caused by the reaction of the sample regardless of the change in the amount of the inspection light and the fogging or bubbles in the sample tube.
- the technical challenge is to eliminate the need for precise optical axis alignment of optical elements and to simplify assembly work. Disclosure of the invention
- the present invention relates to an optical inspection apparatus for inspecting a sample placed in a sample tube for the presence of an object to be inspected that causes optical changes such as white turbidity, white precipitation, and fluorescence.
- a reaction block in which a test block is formed a light emitting section for irradiating the sample tube with test light through a through hole for observation formed in a side surface of the reaction block or a through hole formed in a bottom surface;
- An imaging camera for imaging each sample tube through a through hole for use, and measuring an optical change generated in the sample tube based on a luminance distribution or a chromaticity distribution of image data imaged by the imaging camera.
- an arithmetic processing unit that performs the processing.
- optical inspection device of the present invention by irradiating the inspection light into the sample tube, optical changes occurring in the respective samples caused by cloudiness, white precipitation and fluorescence can be simultaneously imaged by the camera.
- the gene amplification progresses and the sample becomes cloudy or white
- the light irradiated from below will be scattered in the sample tube, and the scattered light will leak from the observation through-hole, so the image will be captured by the imaging camera It looks bright when you do.
- the imaging camera can simultaneously image all the sample tubes, it is possible to detect the presence or absence of cloudiness for each area by specifying the area in the image corresponding to the position of the observation through-hole. It is possible to easily determine which sample is causing cloudiness.
- the luminance distribution or chromaticity distribution data read from the image data of each sample tube captured by the imaging camera is not a simple numerical value, but the position of the white turbid part on the image is the XY coordinate and the luminance is the Z coordinate. Recognized as three-dimensional information. Therefore, even if the amount of light illuminating each of the sump ⁇ tubes may change slightly, the effects of the change in the amount of light can be eliminated by performing appropriate image processing and selecting or normalizing the threshold. It is possible to accurately detect the progress of cloudiness and white precipitation.
- the imaging camera only needs to be placed at a position where all the sump tubes are in the field of view, and it is very easy to confirm whether the installation position is appropriate just by looking at the image.
- accurate optical axis alignment of the camera is not required at all, and the installation of the device is simplified.
- the amplified gene (nucleic acid) interacts with a fluorescent substance, so that it emits fluorescence when irradiated with excitation light, and therefore appears bright when captured by an imaging camera.
- the imaging camera can simultaneously image all the sample tubes, it is possible to easily determine which sample is generating fluorescence.
- the luminance distribution or chromaticity distribution data read from the image data is recognized as the same three-dimensional information as described above, even if the light amount illuminating each sample tube may change slightly, the light amount The effect of the change can be eliminated, and the progress of the fluorescent reaction can be accurately detected.
- FIG. 1 is a basic configuration diagram showing an optical inspection apparatus according to the present invention
- FIG. 2 is an overall configuration diagram
- FIG. 3 is an explanatory diagram showing a detection area of image data
- FIG. 4 is an explanatory diagram showing an image change as a reaction progresses.
- Fig. 5 is a graph showing the result of image processing
- Fig. 6 is a graph showing the result of image processing
- Fig. 7 is a main part showing another embodiment of the optical inspection device
- Fig. 8 is a description showing a conventional device.
- the optical inspection apparatus 1 shown in FIG. 1 optically inspects a sample in a sample tube 2 for the presence or absence of a gene (test object) of a specific pathogen to be detected based on its turbidity.
- the optical inspection apparatus 1 includes two reaction blocks 5 R and 5 L in which a plurality of arrangement holes 4, which stand up and line up sample tubes 2, are formed in a housing 3 in a horizontal row;
- the two imaging power cameras 6R and 6L are arranged to capture images for each reaction block 5R and 5L, and the brightness distribution or the chromaticity distribution of the image data captured by the imaging power cameras 6R and 6L is provided. Turbidity change in each sample tube based on Calculation unit 7 for measuring the target change).
- reaction blocks 5R and 5L are equipped with heaters H for maintaining the sample tubes 2 set up in the array holes 4 at a predetermined temperature, and the respective sample tubes set in each array hole 4
- a light emitting element (light emitting portion) 8 for irradiating light from below with respect to 2 is fitted to the bottom of the arrangement hole 4.
- the light-emitting portion is not limited to the light-emitting element 8 such as an LED, and any light-emitting element can be used.
- the light-emitting end of the optical fiber is provided!
- the observation through-hole 9 may have any shape as long as it is formed so as not to block the optical path from the imaging cameras 6R and 6L to the sample tube 2.
- the reaction block 5R Alternatively, a horizontal slit may be formed on the side of 5L.
- the image data captured by the imaging power lenses 6R and 6L is input to the arithmetic processing unit 7, and the turbidity is measured for each sample.
- each detection area A As The turbidity is measured individually based on the data of.
- magnesium pyrophosphate is produced when the gene is amplified as the reaction of the sample progresses, and the amount of the produced product increases the cloudiness.
- FIG. 9 is an explanatory diagram showing an image change due to the following.
- the concentration was measured using an ultraviolet-visible spectrophotometer.
- this for example, it acquires the luminance distribution data of the detection area Ai ⁇ A 8 by image processing, ask extracted high have the shape of a luminance portion than 50% of the luminance of the highest luminance in each image as a threshold value For example, the shape changes as shown in Figs. 5 (a) to 5 (d).
- the turbidity is calculated based on the detected area S. it can.
- a lamp for notifying the end of the reaction is turned on or an alarm sound is emitted.
- the turbidity is not measured using the luminance as a direct parameter, but the turbidity is measured based on the luminance distribution. According to this, the light amount of the light emitting element 8 is slightly changed. It was confirmed that turbidity could be measured accurately even in some cases. Furthermore, even if the sample tube 2 is fogged or bubbles are present, it does not significantly affect the overall luminance distribution, so that there is no erroneous measurement due to these factors.
- the width of the higher luminance portion than the normalized threshold of 70% is defined as luminance 70% * IW, which is defined as turbidity, or turbidity and luminance 70% measured by other methods. If the relationship of ilfW is converted into data, the turbidity can be calculated based on the detected brightness 70% width W.
- the turbidity is not measured using the luminance as a direct parameter, but the turbidity is measured based on the luminance distribution. According to this, the amount of light of the light emitting element 8 may be slightly changed. It was confirmed that the turbidity could be measured accurately even if there were any problems. Also, if there is fogging or bubbles in the sample tube 2, the measurement will not be erroneous due to these as described above.
- the light of the light emitting element 8 is detected as scattered light, so that the portion corresponding to the high luminance portion has high chromaticity.
- turbidity can be measured in the same manner as described above, based on the chromaticity distribution instead of the luminance distribution.
- test object a specific gene (test object) based on the fluorescence of the sample.
- a fluorescent substance exhibiting a fluorescent reaction is mixed in the sample tube 2 in advance.
- the DNA interacts with the amplified DNA (nucleic acid), enters the duplex, and irradiates with ultraviolet light of 300 nm as excitation light to bring it into the range of 590 nm.
- Etidumimide which emits color fluorescence was used as the fluorescent substance.
- an ultraviolet light emitting diode that emits ultraviolet light of 300 nm as the light emitting element 8 is fitted to the bottom of the array hole 4, and fluorescence is observed in the sample tube 2 according to the progress of gene amplification. Therefore, if this is imaged by the imaging cameras 6R and 6L, and the fluorescence intensity is measured based on the luminance distribution and chromaticity distribution of the image data, the presence or absence of the inspection target can be determined in the same manner as described above. Can be detected.
- FIG. 7 is a main part showing another embodiment of the optical inspection apparatus 11 for measuring fluorescence. Parts common to those in FIG. 1 are denoted by the same reference numerals, and detailed description is omitted.
- the optical path from the observation through holes 9 to the imaging cameras 6R and 6L is A half mirror 12 and a filter 13 are arranged, and ultraviolet light of 300 nm emitted from an ultraviolet light emitting diode (light emitting portion) 14 is reflected by the half mirror 12 to pass through the observation holes 9. Then, each sample type 2 is irradiated as excitation light.
- the filter 13 has a high transmittance for orange light of 590 nm and a low transmittance for light of other wavelengths. Only the fluorescence generated within 2 can be observed.
- the optical axis alignment for irradiating the sample tube 2 with the excitation light emitted from the light emitting diode 14 is required, but the optical axis alignment for the imaging cameras 6R and 6L is not required.
- a sample is sampled based on the luminance distribution or chromaticity distribution of the image data of the sample tube 2 imaged through the observation through hole 9. It is possible to determine the presence or absence of the inspection object by observing the optical change of the generated turbidity and fluorescence.
- sample tube 2 Even if the sample tube 2 is clouded or has bubbles, it does not significantly affect the overall luminance distribution, and has an excellent effect that optical changes in turbidity and fluorescence can be accurately detected.
- the imaging cameras 6R and 6L only need to be installed at a position where the sample tube 2 to be observed enters the field of view, and it is extremely easy to check whether or not the installation position is appropriate just by looking at the images. As a result, there is no need for complicated optical axis alignment, and the assembly of the device can be simplified. Industrial applicability
- the optical inspection apparatus has a specific pathogenic bacterium, bacterium, microorganism, or chemical substance to be inspected in a sample to be inspected in the fields of biochemistry, medicine, pharmacy, and food.
- a specific pathogenic bacterium, bacterium, microorganism, or chemical substance to be inspected in a sample to be inspected in the fields of biochemistry, medicine, pharmacy, and food.
- it can be used for the purpose of testing the presence or absence of a specific gene by amplifying a specific gene as in the LAMP method.
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005505811A JPWO2004095009A1 (ja) | 2003-04-24 | 2004-04-23 | 光学検査装置 |
| DE112004000698T DE112004000698T5 (de) | 2003-04-24 | 2004-04-23 | Optische Prüfapparatur |
| US10/553,947 US20060120566A1 (en) | 2003-04-24 | 2004-04-23 | Optical inspection device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003120649 | 2003-04-24 | ||
| JP2003-120649 | 2003-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004095009A1 true WO2004095009A1 (ja) | 2004-11-04 |
Family
ID=33308145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/005952 Ceased WO2004095009A1 (ja) | 2003-04-24 | 2004-04-23 | 光学検査装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060120566A1 (ja) |
| JP (1) | JPWO2004095009A1 (ja) |
| CN (1) | CN1777804A (ja) |
| DE (1) | DE112004000698T5 (ja) |
| WO (1) | WO2004095009A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145092A (ja) * | 2007-12-12 | 2009-07-02 | Tobishima Corp | 地下水流動兼濁度測定装置 |
| JP2012529048A (ja) * | 2009-06-03 | 2012-11-15 | キアゲン | 濁り度光散乱技法を使用した試料の妥当性の確保 |
| JP2015125028A (ja) * | 2013-12-26 | 2015-07-06 | 国立研究開発法人産業技術総合研究所 | 多チャンネル式化学発光計測システム |
| JP2015523075A (ja) * | 2012-06-28 | 2015-08-13 | フルオレセントリック,インコーポレイテッド | 化学的インジケータデバイス |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007016343U1 (de) * | 2007-11-19 | 2008-04-30 | Levin, Felix, Dr. | Vorrichtungssystem zur schnellen Bestimmung von Substanzen in Flüssigkeiten mit Hilfe eines Rechner-gekoppelten Videosystems |
| NL2002196C2 (en) * | 2008-11-11 | 2010-05-17 | Avantium Int Bv | SAMPLE ANALYZES APPARATUS AND A METHOD OR ANALYZING A SAMPLE. |
| NL2002368C2 (en) * | 2008-12-05 | 2010-06-08 | Avantium Holding B V | System and method for simultaneously performing phase behaviour tests on a plurality of samples. |
| ES2325804B1 (es) * | 2009-04-21 | 2010-06-22 | Biosystems, S.A. | Dispositivo fotometrico de medicion de absorbancia y turbidez. |
| DE102011003140A1 (de) * | 2011-01-25 | 2012-07-26 | Hamilton Bonaduz Ag | Optisches Analyseverfahren für Flüssigkeit in einem Probenbehälter und Analyseeinrichtung zur Durchführung des Verfahrens |
| ITPI20120001A1 (it) * | 2012-01-04 | 2013-07-05 | Alessandro Bertocchi | Metodo per la produzione di purea, o succo, da prodotti alimentari ad elevata capacita' e macchina che attua tale metodo |
| US9970868B2 (en) | 2013-08-22 | 2018-05-15 | Becton, Dickinson And Company | Nephelometry method and apparatus for determining the concentration of suspended particles in an array of sample containers |
| DE102013017148B4 (de) * | 2013-10-16 | 2015-08-06 | Heiko Langer | Flüssigkeitsanalyseverfahren und Analysekit |
| BE1022861B1 (nl) * | 2014-11-06 | 2016-09-27 | Vidimsoft Bvba | Inrichting voor het digitaliseren van bloedgroepcassettes |
| KR101802460B1 (ko) * | 2015-12-22 | 2017-11-28 | 조원창 | 유전자 진단 장치 |
| AT521189B1 (de) * | 2018-04-23 | 2021-01-15 | Meon Medical Solutions Gmbh & Co Kg | Automatischer analysator und optisches messverfahren zur gewinnung von messsignalen von flüssigen medien |
| CN111944678A (zh) * | 2019-05-15 | 2020-11-17 | 青岛简码基因科技有限公司 | 一种便携式核酸比色检测装置及其使用方法 |
| DE102020114414A1 (de) | 2020-05-29 | 2021-12-02 | Analytik Jena Gmbh | Temperiervorrichtung mit optischer Einheit |
| TWI756777B (zh) * | 2020-08-10 | 2022-03-01 | 輝視科技股份有限公司 | 用於光學檢測的燈具結構 |
| EP4428524A1 (en) * | 2023-03-06 | 2024-09-11 | Christian Beyschau Sydow Andersen | Detection device, kit and method |
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| JPS58140459U (ja) * | 1982-03-17 | 1983-09-21 | 株式会社常光 | レ−ザネフエロメ−タ |
| JPS617426A (ja) * | 1984-06-21 | 1986-01-14 | Shimadzu Corp | 光度計 |
| JPS6175263A (ja) * | 1984-09-20 | 1986-04-17 | Toshiba Corp | 反応管カセツト |
| JPS63170761U (ja) * | 1987-04-28 | 1988-11-07 | ||
| EP0637744A1 (en) * | 1993-06-11 | 1995-02-08 | Ortho Diagnostic Systems, Inc. | Method and system for classifying agglutination reactions |
| JPH1144509A (ja) * | 1997-03-13 | 1999-02-16 | Ortho Clinical Diagnostics Inc | 凝集反応を分析するためのイメージング装置を校正するための方法及び装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5093271A (en) * | 1986-11-28 | 1992-03-03 | Shimadzu Corporation | Method for the quantitative determination of antigens and antibodies by ratio of absorbances at different wavelengths |
| US4878114A (en) * | 1988-05-10 | 1989-10-31 | University Of Windsor | Method and apparatus for assessing surface roughness |
| WO1998011508A1 (en) * | 1996-09-16 | 1998-03-19 | Fey Stephen J | Method and apparatus for analyzing images |
| US6175750B1 (en) * | 1999-03-19 | 2001-01-16 | Cytometrics, Inc. | System and method for calibrating a reflection imaging spectrophotometer |
| US7482602B2 (en) * | 2005-11-16 | 2009-01-27 | Konica Minolta Medical & Graphic, Inc. | Scintillator plate for radiation and production method of the same |
-
2004
- 2004-04-23 JP JP2005505811A patent/JPWO2004095009A1/ja active Pending
- 2004-04-23 WO PCT/JP2004/005952 patent/WO2004095009A1/ja not_active Ceased
- 2004-04-23 DE DE112004000698T patent/DE112004000698T5/de not_active Withdrawn
- 2004-04-23 US US10/553,947 patent/US20060120566A1/en not_active Abandoned
- 2004-04-23 CN CNA2004800108843A patent/CN1777804A/zh active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58140459U (ja) * | 1982-03-17 | 1983-09-21 | 株式会社常光 | レ−ザネフエロメ−タ |
| JPS617426A (ja) * | 1984-06-21 | 1986-01-14 | Shimadzu Corp | 光度計 |
| JPS6175263A (ja) * | 1984-09-20 | 1986-04-17 | Toshiba Corp | 反応管カセツト |
| JPS63170761U (ja) * | 1987-04-28 | 1988-11-07 | ||
| EP0637744A1 (en) * | 1993-06-11 | 1995-02-08 | Ortho Diagnostic Systems, Inc. | Method and system for classifying agglutination reactions |
| JPH1144509A (ja) * | 1997-03-13 | 1999-02-16 | Ortho Clinical Diagnostics Inc | 凝集反応を分析するためのイメージング装置を校正するための方法及び装置 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145092A (ja) * | 2007-12-12 | 2009-07-02 | Tobishima Corp | 地下水流動兼濁度測定装置 |
| JP2012529048A (ja) * | 2009-06-03 | 2012-11-15 | キアゲン | 濁り度光散乱技法を使用した試料の妥当性の確保 |
| JP2015523075A (ja) * | 2012-06-28 | 2015-08-13 | フルオレセントリック,インコーポレイテッド | 化学的インジケータデバイス |
| US11293855B2 (en) | 2012-06-28 | 2022-04-05 | XCR Diagnostics, Inc. | Chemical indicator device with heat blocks |
| JP2015125028A (ja) * | 2013-12-26 | 2015-07-06 | 国立研究開発法人産業技術総合研究所 | 多チャンネル式化学発光計測システム |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1777804A (zh) | 2006-05-24 |
| JPWO2004095009A1 (ja) | 2006-07-13 |
| DE112004000698T5 (de) | 2006-03-30 |
| US20060120566A1 (en) | 2006-06-08 |
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