JP2003014645A - Specimen inspection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a specimen inspection device capable of rapidly and accurately analyzing a large number of specimens or a very small amount of a specimen. SOLUTION: A plurality of specimen housing tubular daughter specimen containers 6 are held on a feed rack 4 in a matrix state. The light irradiation parts 2 arranged above the daughter specimen containers 6 emit downward inspection lights and the inspection lights incident on the specimens in the daughter specimen containers 6 from above transmit downwardly. The transmitted lights pass through the light transmission holes 10 formed to the feed rack 4 to be detected by transmission light detection parts 8 arranged under the feed rack 4. The light irradiation parts 2 and the transmission light detection parts 8 are arranged in a matrix state as a plurality of sets and one or more sets of the light irradiation parts 2, the transmission light detection parts 8 arranged in one direction are mutually same in measuring wavelength and one or more sets of the light irradiation parts 2, and the transmission light detection parts 8 arranged in other direction crossing one direction at a right angle are different from each other in measuring wavelength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sample testing device, and more particularly to a device having a function of optically analyzing a test substance such as chyle in a blood sample.

[0002]

2. Description of the Related Art A test for analyzing serum in blood is the most frequently used technique in the field of specimen test for testing the health condition and allergic constitution of a subject. In the analysis of this serum, the serum is separated from the collected blood by centrifugation, and the serum is dispensed for each analysis item to prepare a child sample. Then, the child sample is analyzed by the analyzer. At this time, it is known that an error occurs in the test result when hemolyzed hemoglobin, bilirubin, and chyle, which are so-called interfering substances, are present in the serum. Therefore, it is necessary to check the presence or absence of these interfering substances, their concentrations, etc. and reflect them in the analysis result before the sample is applied to the analyzer.

Conventionally, the process before the analysis was visually performed by an examiner, but the process speed is limited, and it is difficult to rapidly process a large amount of samples such as a mass examination.
Further, in the visual inspection, it is difficult to ensure the objectivity and quantitativeness of the determination level because the inspector may be affected by the physical condition and environment even if the same inspector is used.

From such a problem, Japanese Patent Laid-Open No. 7-28081
Japanese Patent Laid-Open No. 4 (1994) proposes a sample inspection system that automatically makes a determination in analysis pretreatment, not visually. The technique disclosed therein carries out an optical measurement from the side of a blood collection tube containing the centrifuged original serum.

[0005]

However, a vacuum blood collection tube in which the original serum is put and a sub-sample container into which the original serum is dispensed and subdivided have a label such as a bar code for identifying the sample in a hospital or a hospital. Since it is created and attached at an inspection center, there is a problem that optical measurement from the side is often difficult. Also in the prior art, considering this point,
A method is disclosed in which the serum is transferred to a separate container without a bar code label and the measurement is performed from the side. In such a method, an extra dispensing operation for transfer is required and another container is required, which causes a problem that the processing speed becomes slow and the inspection cost increases.

In many cases, the amount of the sub-sample is small, and the height of the sub-sample in the sub-sample container is very small, which may make it difficult to measure the optical transmittance from the side surface.

Further, the rack for transporting the sample container is
There is one that holds a plurality of sample containers upright in a two-dimensional array. In that case, there are a plurality of sample containers on the optical path of the inspection light from the side, and the measurement for each sample container is performed. It may not be possible to do so.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a sample inspection apparatus capable of analyzing a large number of samples or a small amount of samples quickly and accurately.

[0009]

The above objects are achieved by the present invention described in (1) to (17) below.

(1) A light irradiator for vertically injecting a test light into a sample contained in a columnar sample container, a transmitted light detector for detecting transmitted light from the sample, and a transmitted light detector based on the transmitted light. A sample inspection apparatus having an analysis unit for analyzing the sample, wherein the light irradiation unit and the transmitted light detection unit are arranged in plural sets having the same measurement wavelengths. Specimen inspection device.

(2) The plurality of sets of the light irradiating section and the transmitted light detecting section, and the plurality of sample containers arranged in a matrix are arranged in an array direction of the light irradiating section and the transmitted light detecting section. The sample testing apparatus according to (1), wherein the samples in the sample containers in each row are sequentially measured while relatively moving in the orthogonal direction.

(3) The specimen inspection apparatus according to (2), wherein the movement is relative movement by the arrangement pitch of the specimen containers in the movement direction.

(4) A light irradiating section for vertically injecting the inspection light to the sample contained in the columnar sample container, a transmitted light detecting section for detecting the transmitted light from the sample, and a transmitted light based on the transmitted light. A sample inspection device having an analysis unit for analyzing the sample, wherein the light irradiation unit and the transmitted light detection unit are provided in parallel with a plurality of sets having different measurement wavelengths. Inspection device.

(5) While relatively moving the plurality of sets of the light irradiation section and the transmitted light detection section and the sample container in the arrangement direction of the light irradiation section and the transmitted light detection section, The sample inspection apparatus according to (4), wherein the sample in the sample container is sequentially measured by the light irradiation section and the transmitted light detection section of each set.

(6) The sample in the sample container arranged in plural along the moving direction is measured in parallel by each set of the light irradiator and the transmitted light detector (5). The sample inspection apparatus described in.

(7) The specimen inspection apparatus according to (5) or (6), wherein the movement is relative movement by the arrangement pitch of the specimen containers.

(8) Based on the transmitted light, a light irradiator for vertically injecting the inspection light to the specimen contained in the columnar specimen container, a transmitted light detector for detecting the transmitted light from the specimen, and the transmitted light. And a transmitted light detection unit, wherein the light irradiation unit and the transmitted light detection unit are arranged in a plurality of rows and columns arranged in one direction. Part and the transmitted light detection part have the same measurement wavelength, and the plurality of sets of the light irradiation part and the transmitted light detection part arranged in the other direction orthogonal to the one direction have different measurement wavelengths. A specimen inspection apparatus characterized by being a thing.

(9) A plurality of sets of the light irradiator and the transmitted light detector arranged in a matrix and the plurality of sample containers arranged in a matrix are relatively moved in the other direction. The specimen test according to (8) above, in which the specimens in the specimen containers are sequentially measured by the light irradiator and the transmitted light detector of each set having different measurement wavelengths by performing the measurement while performing the measurement. apparatus.

(10) The specimen inspection apparatus according to (9), wherein the movement is relative movement by the arrangement pitch of the specimen containers in the movement direction.

(11) Based on the transmitted light, a light irradiator for vertically injecting the inspection light into the specimen contained in the columnar specimen container, a transmitted light detector for detecting the transmitted light from the specimen, and the transmitted light. And an analysis unit for analyzing the sample, wherein a plurality of sets of the light irradiation unit and the transmitted light detection unit are arranged in a row or a matrix. apparatus.

(12) The sample testing apparatus according to any one of (1) to (11), wherein the analysis unit obtains the concentration of the test substance contained in the sample based on the transmitted light.

(13) In the above (12), the analysis section has an absorbance determination means for determining the absorbance of the test substance based on the transmitted light and a concentration determination means for determining the concentration based on the absorbance. Sample inspection apparatus described.

(14) The sample testing apparatus according to (13), wherein the concentration determining means has a conversion table showing a relationship between the absorbance and the concentration.

(15) The light irradiator and the transmitted light detector measure the sample at a plurality of measurement wavelengths, and based on the measurement results of the respective measurement wavelengths, a plurality of test objects contained in the sample are detected. Analyzing a substance (1) to (1)
The sample inspection apparatus according to any one of 4).

(16) The plurality of test substances include hemolyzed hemoglobin, chyle, or bilirubin.
5) The sample inspection apparatus described in 5).

(17) A plurality of the sample containers are arranged side by side on a transport rack, and the transport rack is configured to allow light to pass through in the vertical direction of the position where the sample containers are arranged.
The sample inspection apparatus according to any one of (1) to (16), wherein the light irradiation unit and the transmitted light detection unit are arranged to face each other with the sample container and the transport rack interposed therebetween.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a sample test apparatus (blood test apparatus) according to an embodiment of the present invention will be described with reference to the drawings. This device measures the concentration of the hemolytic hemoglobin, bilirubin, and chyle that are interfering substances that may be contained in the serum, by examining the serum sample dispensed in the test tube-shaped sample container 6 (sample container). To do.

In this apparatus, when the transport rack 4 is transported to the position where the optical measuring section is provided, the transport rack 4 causes the optical measuring section to pitch the test tube holes for holding the sub-sample containers 6, that is, The sub-sample containers 6 are relatively moved (pitch feed) by the arrangement pitch of the sub-sample containers 6, and the sub-sample containers 6 arranged on the transport rack 4 are sequentially scanned. FIG. 1 is a cross-sectional view of the optical measurement unit on a plane along the scanning direction.
The optical measurement unit includes a light irradiation unit 2 for injecting test light onto the sub-sample serum (sample) 30 and a transmitted light detection unit 8 for detecting transmitted light obtained by transmitting the test light through the sub-sample serum 30. Become. This device observes transmitted light and determines the concentration of the test substance based on the change in the transmitted light compared with the inspection light.

The characteristic of this apparatus is that the inspection light is incident on the specimen along the vertical direction. In the example shown in FIG.
Sub-sample container 6 in which light irradiation unit 2 stands on transport rack 4
Is arranged above and emits inspection light downward. The transmitted light detection unit 8 is arranged below the transport rack 4 and detects light from above. That is, the sub-sample serum 30 is contained in a vertically elongated sub-sample container 6 such as a test tube,
The inspection light is vertically transmitted through the child sample serum 30. The transmission direction may be from top to bottom or from bottom to top. When the sub-sample container 6 has a columnar shape, the top surface and the bottom surface thereof are generally openings or have a small area, so that they are not used for labeling or the like and can easily be configured to transmit light. Further, the irradiation position of the inspection light and the observation position of the transmitted light are basically determined by the horizontal cross-section opening of the sub-sample container 6 regardless of the amount of the sub-sample serum 30, and it is not necessary to adjust the observation position according to the sample amount. is there. On the bottom surface of the transport rack 4, a light transmission hole 10 capable of transmitting light is provided at a position where the sub-sample container 6 stands. The light transmission hole 10 is formed of an opening or a transparent member.

With such a configuration, it is possible to analyze a plurality of sub-sample serums 30 respectively held in sub-sample containers 6 while standing on the transport rack 4. By relatively moving the light irradiation unit 2 and the transmitted light detection unit 8 and the transport rack 4, the transmitted light for the plurality of subsample serums 30 held on the transport rack 4 is measured. In the present invention, since the light is transmitted in the vertical direction, the transport rack 4
Even when the sub-sample containers 6 are arranged in a two-dimensional array (matrix), the transmission of light is not blocked by the other sub-sample containers 6.

The light irradiator 2 is an LED (Light Emission D
iode) 20, a lens 22, irises 24 and 26, and a lens 28. The light from the LED 20 passes through the lens 22, the irises 24 and 26, and the lens 28 in this order, and is focused vertically downward. The focused inspection light passes through the upper opening of the sub-sample container 6 standing on the transport rack 4, and the sub-sample serum 3 contained in the sub-sample container 6
It is incident on 0, passes through the subsample serum 30 and the bottom surface of the subsample container 6, and is output as transmitted light. Transmitted light detector 8
Is the scanner plate 40, the lens 42, the filter 4
4 and a photodetector 46. The photodetector 46 is collimated by the scanner plate 40 and the lens 4
The transmitted light focused at 2 enters.

The filter 44 selectively transmits a specific wavelength range of transmitted light, and the wavelength range is determined according to the interfering substance to be measured. In this device, analysis is performed at four wavelengths in order to measure the concentrations of the above-mentioned three types of interfering substances. Corresponding to this, four pairs (four sets) of the light irradiation section 2 and the transmitted light detection section 8 are provided, and each LED 2
0, the wavelength characteristic of the filter 44 corresponds to the measurement wavelength to be assigned. The four pairs of light irradiation units 2 and transmitted light detection units 8 provided corresponding to four kinds of wavelengths are arranged side by side in the relative movement direction (relative movement direction) between the transport rack 4 and the optical measurement unit. As a result, when the transport rack 4 and the optical measurement unit move relative to each other, the respective sample serums 30 are sequentially
By receiving the measurement for these four wavelengths, the received light signal for each of the four measurement wavelengths is obtained for each sub-sample serum 30.

A plurality of test tube holes of the transport rack 4 are arranged in the scanning direction, that is, in the relative movement direction, and
A plurality of sub-sample containers 6 are also arranged in a direction orthogonal to the scanning direction, and the sub-sample containers 6 are arranged in a two-dimensional array (matrix).
As described above, in the present apparatus, since the irradiation of the inspection light and the detection of the transmitted light are performed in the vertical direction of the sub-sample container 6, a plurality of sub-sample serums 30 arranged in a two-dimensional array in the horizontal plane.
It is possible to make individual measurements for. Figure 2
FIG. 3 is a schematic perspective view showing a transport rack and an optical measurement unit. The illustrated transport rack 4 is provided with five test tube holes along a direction orthogonal to the scanning direction. In the present apparatus, correspondingly, five light irradiation units 2 and transmitted light detection units 8 of each measurement wavelength are arranged in parallel in a direction orthogonal to the scanning direction. That is, the light irradiation unit 2 and the transmitted light detection unit 8 have the same measurement wavelength in the direction orthogonal to the relative movement direction of the transport rack 4.
The sets (plural sets) are arranged side by side, and as a whole, 20 sets of 4 × 5 sets of light irradiation units 2 and transmitted light detection units 8 are arranged in a matrix. As a result, it is possible to simultaneously perform measurement on each of the five sub-sample containers 6 for each measurement wavelength, thus improving throughput.

FIG. 3 is a schematic block diagram of this apparatus. This device is provided with the above-mentioned light irradiation unit 2 and transmitted light detection unit 8
Besides, the light source drive circuit 50, the rack drive circuit 52, I-
V converter 54, ADC (Analog-to-Digital Converte
r) 56, analysis unit 58, dispensing amount input unit 60, output unit 62
It is configured to include. The analysis unit 58 includes a CPU (CentralP
rocessing unit) 64, a calibration curve table 66, and an optical path length table 68.

The light source drive circuit 50 is the LED of the light irradiation unit 2.
It is a circuit for driving the LED 20, and blinks the LED 20 in accordance with an instruction from the CPU 64.

The rack drive circuit 52 is a circuit for operating a drive mechanism (not shown) for moving the transport rack 4, and, for example, at the position of the optical measuring portion, the pitch of the test tube holes, that is, the relative moving direction, is determined. Sub-sample container 6
The transport rack 4 is moved by the arrangement pitch. CPU
Reference numeral 64 gives an instruction to the rack drive circuit 52 to move the transport rack 4 in synchronism with the processing cycle of irradiating the inspection light in the optical measuring unit and detecting the transmitted light. With such a configuration, in the present embodiment, since it is possible to perform the measurement while the sub-sample container 6 is temporarily stopped with respect to the light irradiation unit 2 and the transmitted light detection unit 8, the measurement can be performed more reliably and with higher accuracy. It can be performed.

The IV converter 54 converts the output current signal of the photodetector 46 of the transmitted light detector 8 into a voltage signal. This voltage signal is converted into a digital signal by the ADC 56 and input to the CPU 64.

In the calibration curve table 66, calibration curve data relating to the concentration and the absorbance of each interfering substance to be measured is previously measured and stored. This calibration curve data is for the case where the optical path length in the sample through which the inspection light passes is a predetermined reference optical path length.

The measured absorbance depends on the actual optical path length (optical path length in the substance causing absorption). Generally, as the amount of the sample increases, the height of the sample in the sample container increases. The height depends on the shape of the storage portion of the sample container.
In the present invention, since light is transmitted in the vertical direction, its optical path length is basically the height of the sample in the sample container, and the height of the sample in the sample container is determined from the shape of the sample container and the amount of the sample. By determining the height, the optical path length can be determined.

That is, in this apparatus, the actual optical path length depends on the dispensing amount subdivided into the sub-sample container 6 and the shape of the sub-sample container 6. The optical path length table 68 is a table that stores this relationship. FIG. 4 is a graph showing an example of the relationship between the dispensing amount and the optical path length in the sample, which is stored in the optical path length table 68, and is a graph when the sub-sample container 6 is a test tube having an inner diameter of 10 mm. . An optical path length table 68 is prepared in advance in the analysis unit 58 according to the child sample container 6 used. On the other hand, the information on the dispensing amount of each sub-sample container 6 is
The dispensing amount input unit 60 acquires from the dispensing device and inputs it to the CPU 64. The CPU 64 reads from the optical path length table 68 the optical path length corresponding to the dispensed quantity obtained from the dispensed quantity input unit 60.

The output unit 62 has a function of numerically displaying the concentration of the interfering substance calculated by the CPU 64 and outputting an alarm when the concentration exceeds a predetermined abnormality determination threshold value.

Next, the operation of this apparatus will be described. When the rack drive circuit 52 detects with the sensor that the leading portion of the transport rack 4 moved by the transport means has been transported to the position where the light irradiation unit 2 and the transmitted light detection unit 8 are vertically opposed to each other, The transport rack 4 is step-driven (pitch feed) for each array pitch of the test tube holes in the transport direction. By this step drive, the sub-sample containers 6 held in the respective test tube holes are divided into four pairs (4 sets) of light irradiation sections 2 and transmitted light detection sections 8 having different measurement wavelengths.
During this period, the transmitted light intensity is measured.

The four pairs of light irradiators 2 and transmitted light detectors 8 corresponding to different measurement wavelengths arranged in the carrying direction (relative movement direction) of the carrying rack 4 are arranged in the carrying direction of the carrying rack 4. Transmitted light measurements for four specimens are performed in parallel. As a result, the measurement can be performed with higher efficiency, and the inspection work can be further speeded up (speeded up). The measurement results of the transmitted light with respect to the four types of measurement wavelengths for each sample are obtained with a time difference. CPU
64 handles the measurement result of the transmitted light for each sample obtained by this time difference as one set of data.

The CPU 64 calculates the absorbance A at each measurement wavelength from the measurement result of the transmitted light. Generally, the absorbance A is A≡log, where I _{0 is} the intensity of incident light and I is the intensity of transmitted light.
It is calculated by ₁₀ (I ₀ / I).

Next, the CPU 64 searches the calibration curve table 66 by using the calculated absorbance as a key and acquires the concentration data stored in the table. This concentration data is obtained for each of the three interfering substances hemolyzed hemoglobin, bilirubin and chyle.

Since the density data stored in the calibration curve table 66 is for a predetermined reference optical path length,
The CPU 64 converts this concentration data into data according to the actual optical path length in the sample. The CPU 64 reads out the data of the sample to be processed from the dispensing amount data obtained from the dispensing device. Then, the optical path length table 68 is searched by using the dispensed amount as a key, and the actual optical path length according to the used sub-sample container 6 is acquired and the above conversion is performed.

For example, as the relationship between the absorbance A and the thickness d of the absorption layer, the Lambert-Beer law of A = εcd is known. Here, ε is the molecular extinction coefficient, and c is the concentration. Based on such a rule, the CPU 64 converts the density data at the reference optical path length into the actual density according to the actual optical path length.

The sample testing apparatus of the present invention has been described above with reference to the illustrated embodiment, but the present invention is not limited to this, and each unit constituting the sample testing apparatus can exhibit the same function. It can be replaced with an arbitrary configuration.

Further, the number of rows and the number of columns of the light irradiating section and the transmitted light detecting section, which are arranged in a matrix of a plurality of sets, may be any number, and may be any number of 1 or more.

Further, the sample container is not limited to a cylindrical test tube shape having a rounded bottom as shown in the figure, but any shape such as a rectangular parallelepiped shape or a prismatic shape having a vertically long column shape. It may be one.

When a plurality of sets of light irradiating parts and passing light detecting parts are arranged in a matrix, they are arranged such that the rows are arranged every other row like a honeycomb. It can be anything.

[0052]

According to the sample inspection apparatus of the present invention, since the inspection light is incident in the vertical direction, even if a label is affixed to the side surface of the sample container or a large number of sample containers are arranged in parallel, they are transmitted. Light can be measured, and the sample can be easily analyzed using the transmitted light. Further, even if the amount of the sample contained in the sample container is small, it is easy to make the test light incident on the sample, and in this respect, the effect of facilitating the analysis of the sample can be obtained.

Further, since a plurality of sets of the light irradiating section and the transmitted light detecting section are provided in parallel, it is possible to perform the measurement with high efficiency (throughput) on the samples in the sample containers arranged in plural. The inspection work can be speeded up. In particular, when performing measurement while relatively moving a plurality of sets of light irradiation units and transmitted light detection units and sample containers arranged in a matrix, a large number of samples can be tested rapidly with particularly high efficiency. It can be carried out.

Further, in the case of performing the measurement while relatively moving the light irradiation section and the transmitted light detection section and the plurality of arranged sample containers by the arrangement pitch of the sample containers, the measurement can be performed more reliably and with higher accuracy. It can be performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an optical measurement unit on a plane along a scan direction.

FIG. 2 is a schematic perspective view showing a transport rack and an optical measurement unit.

FIG. 3 is a schematic block configuration diagram of a sample testing device according to an embodiment of the present invention.

FIG. 4 is a graph showing an example of a relationship between a dispensing amount and an optical path length in a sample, which is stored in an optical path length table.

[Explanation of symbols]

2 Light irradiation part 4 Transport rack 6 child sample containers 8 Transmitted light detector 10 Light transmission hole 20 LED 22 lens 24 Iris 26 Iris 28 lenses 30 child specimen serum 40 scanner plate 42 lens 44 Filter 46 Photodetector 50 Light source drive circuit 52 Rack drive circuit 54 IV converter 56 ADC 58 Analysis Department 60 dispensing amount input section 62 Output section 64 CPU 66 Calibration curve table 68 Optical path length table

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Junichi Kawanabe             6-22-1, Mure, Mitaka City, Tokyo Aloka             Within the corporation (72) Inventor Tsuyoshi Ono             6-22-1, Mure, Mitaka City, Tokyo Aloka             Within the corporation F term (reference) 2G058 CB15 CF12 GA03 GA08 GD02                 2G059 AA01 AA06 BB13 DD12 EE01                       FF11 GG02 GG03 GG07 JJ02                       JJ11 KK04 MM09

Claims (17)

[Claims] 1. A light irradiator for vertically injecting inspection light into a sample housed in a columnar sample container, a transmitted light detector for detecting transmitted light from the sample, and a transmitted light detector based on the transmitted light. A sample testing apparatus having an analysis unit for analyzing the sample, wherein the light irradiation unit and the transmitted light detection unit are arranged in plural sets having the same measurement wavelengths in parallel. Specimen inspection device. 2. The plurality of sets of the light irradiation section and the transmitted light detecting section and the plurality of sample containers arranged in a matrix are orthogonal to the arrangement direction of the light irradiation section and the transmitted light detecting section. The sample inspection apparatus according to claim 1, wherein the samples in the sample containers in each row are sequentially measured while being relatively moved in the direction of movement. 3. The sample inspection apparatus according to claim 2, wherein the movement is relatively moved by the arrangement pitch of the sample containers in the movement direction. 4. A light irradiator for vertically injecting inspection light into a sample housed in a columnar sample container, a transmitted light detector for detecting transmitted light from the sample, and a transmitted light detector based on the transmitted light. A sample inspection apparatus having an analysis unit for analyzing the sample, wherein the light irradiation unit and the transmitted light detection unit are provided with a plurality of sets having different measurement wavelengths arranged in parallel. apparatus. 5. The sample while moving the plurality of sets of the light irradiator and the transmitted light detector and the sample container relatively in the arrangement direction of the light irradiator and the transmitted light detector. The sample inspection apparatus according to claim 4, wherein the sample in the container is sequentially measured by each of the light irradiation section and the transmitted light detection section. 6. The sample in the sample container arranged in plural along the movement direction is measured in parallel by each set of the light irradiation section and the transmitted light detection section.
The sample inspection apparatus described in. 7. The sample inspection apparatus according to claim 5, wherein the movement is relatively moved by the arrangement pitch of the sample containers. 8. A light irradiator for vertically injecting test light into a sample housed in a columnar sample container, a transmitted light detector for detecting transmitted light from the sample, and a transmitted light detector based on the transmitted light. A sample inspection apparatus having an analysis unit for analyzing the sample, wherein the light irradiation unit and the transmitted light detection unit are arranged in a plurality of sets, and a plurality of sets of the light irradiation units arranged in one direction are arranged. And the transmitted light detector has the same measurement wavelength, and the plurality of sets of the light irradiation unit and the transmitted light detector arranged in the other direction orthogonal to the one direction have different measurement wavelengths. The specimen inspection apparatus according to claim 1. 9. The plurality of sets of the light irradiator and the transmitted light detector arranged in a matrix and the plurality of sample containers arranged in a matrix are relatively moved in the other direction. 9. The sample testing apparatus according to claim 8, wherein the measurement is performed while the measurement is sequentially performed on the sample in each sample container by each set of the light irradiation unit and the transmitted light detection unit having different measurement wavelengths. 10. The sample inspection apparatus according to claim 9, wherein the movement is relatively moved by the arrangement pitch of the sample containers in the moving direction. 11. A light irradiator for vertically injecting inspection light onto a sample housed in a columnar sample container, a transmitted light detector for detecting transmitted light from the sample, and based on the transmitted light. A sample inspection apparatus having an analysis unit for analyzing the sample, wherein the light irradiation unit and the transmitted light detection unit are arranged in a plurality of sets in one row or matrix. . 12. The sample inspection apparatus according to claim 1, wherein the analysis unit obtains the concentration of the test substance contained in the sample based on the transmitted light. 13. The absorbance determination means for determining the absorbance of the test substance based on the transmitted light.
The sample testing apparatus according to claim 12, further comprising a concentration determining unit that determines the concentration based on the absorbance. 14. The concentration determining means has a conversion table representing the relationship between the absorbance and the concentration.
The sample inspection apparatus described in. 15. The sample is measured at a plurality of measurement wavelengths by the light irradiator and the transmitted light detector,
The sample inspection apparatus according to claim 1, wherein a plurality of test substances contained in the sample are analyzed based on the measurement results of each measurement wavelength. 16. The sample inspection apparatus according to claim 15, wherein the plurality of test substances include hemolyzed hemoglobin, chyle, or bilirubin. 17. A plurality of the sample containers are arranged in parallel on a transport rack, and the transport rack is configured to allow light to pass through in the vertical direction of the arrangement position of the sample container, the light irradiation unit and the The sample inspection apparatus according to any one of claims 1 to 16, wherein the transmitted light detectors are arranged to face each other with the sample container and the transport rack sandwiched therebetween.