JP7446905B2 - automatic analyzer - Google Patents

Description

Embodiments disclosed in this specification and drawings relate to an automatic analysis device.

Automatic analyzers target biochemical test items, immunological test items, etc., and detect changes in color tone and turbidity that occur due to the reaction between samples such as test samples collected from subjects and the reagents for each test item. , optically measured using a measuring unit such as a spectrophotometer or nephelometer. Through this optical measurement, test data indicating test results expressed by the concentration of each test item component in the sample, enzyme activity, etc. is generated.

This automatic analyzer performs measurements by reacting a sample and reagent within a cell, so the cell is used by immersing it in a thermostatic bath containing constant-temperature water that is maintained at a predetermined temperature. Since this cell is fixed or moved within the thermostatic chamber, it is used by being fixed to a reaction tube fixture (holder) to prevent it from wobbling or overflowing the contents.

However, constant-temperature water may rise due to capillary action between the partition plate of the fixture for fixing the reaction tube and the outer wall of the reaction tube, and reach the vicinity of the reaction tube opening at the top of the reaction tube fixture. . Constant-temperature water contains additives such as preservatives, so the additives may precipitate or form condensation due to evaporation, damaging the appearance. In some cases, it may be necessary to clean the cell. There is.

Japanese Patent Application Publication No. 2015-225054

One of the problems to be solved by the embodiments disclosed in this specification and the drawings is to suppress constant temperature water from reaching the upper part of the cell. However, the problems to be solved by the embodiments disclosed in this specification and the drawings are not limited to the above problems. Problems corresponding to each effect of each configuration shown in the embodiments described later can also be positioned as other problems.

According to one embodiment, an automatic analyzer includes a reaction vessel, a constant temperature bath, and a fixture. The reaction container allows the dispensed solution to react in a region surrounded by the inside of the bottom and the inside of the side. The constant temperature bath stores liquid at a predetermined temperature. The fixing device includes a first fixing device and a second fixing device. A gap of a predetermined length is provided between the container and the container, and a plurality of reaction containers are fixed and inserted into a constant temperature bath. The first fixing device fixes at least a portion of an outer lower portion of the bottom surface or the side surface. The second fixture fixes at least a portion of the outer upper portion of the side surface of the reaction vessel.

FIG. 1 is a perspective view showing an example of a specific configuration of an analysis section of an automatic analyzer according to an embodiment. FIG. 2 is a perspective view showing a fixture and a reaction container according to one embodiment. FIG. 1 is a perspective view showing a reaction container according to one embodiment. FIG. 2 is a plan view schematically showing a fixture and a reaction container according to one embodiment. FIG. 2 is a bottom view schematically showing a fixture and a reaction container according to one embodiment. A-A sectional view of FIG. 4.

An automatic analyzer according to this embodiment will be described below with reference to the drawings. In the following description, the aspect ratio of the length, width, and height of each member may be changed for ease of understanding, and the contents of the present disclosure are not limited to those in these drawings or description. .

FIG. 1 is a block diagram schematically showing the configuration of an automatic analyzer 1 according to an embodiment. The automatic analysis device 1 includes an analysis section 2, a drive section 3, a control section 4, and a data processing section 5. FIG. 1 is a perspective view mainly showing an example of a specific configuration of the analysis section 2. As shown in FIG.

The analysis section 2 generates blank data through blank measurements, generates standard data through standard measurements that measure a mixture of a standard sample for each test item and a reagent used in the analysis of each test item, and generates standard data through a standard measurement that measures a mixture of a standard sample for each test item and a reagent used for analysis of each test item. Generates test data through test measurements that measure mixed liquids. The drive section 3 drives various constituent units of the analysis section 2. The control section 4 controls the drive section 3. The data processing unit 5 generates analysis data and the like based on data related to various test items such as blank data, standard data, and test data generated by the analysis unit 2.

Further, although not shown, the automatic analyzer 1 may further include an output section, an operation section, and a system control section. The output section prints the calibration data, analysis data, etc. generated by the data processing section 5 using the printing section or displays it on the display section.

The operation unit is an input unit through which a user inputs instructions and information. Specifically, the user operates this operation unit to input settings such as the amount of sample to be dispensed, the amount of reagent to be dispensed, and the wavelength of the light source as analysis parameters for each test item. conduct. Further, the user operates the operation section to perform input for setting each test item necessary for the test for each sample to be tested. The system control unit controls the entire system of the automatic analyzer 1 by integrating the control unit 4, the data processing unit 5, and the output unit.

I will give a detailed explanation of analysis section 2. The analysis section 2 includes a sample disk 200, a reagent storage 201, a reagent storage 202, a reaction disk 203, a first reagent dispensing mechanism 204, a second reagent dispensing mechanism 205, a sample dispensing mechanism 206, A first stirring mechanism 207 and a second stirring mechanism 208 are provided.

The sample disk 200 holds a plurality of sample containers 209, and the sample containers 209 contain standard samples, test samples such as serum, and the like. The reagent storage 201 includes a reagent rack 211 that rotatably holds a plurality of reagent containers 210, and this reagent rack 211 holds the first reagent contained in the reagent containers 210 while keeping it cool. That is, the reagent container 210 accommodates, for example, a one-reagent system and a two-reagent system of first reagents that react with components of test items contained in each sample such as a standard sample and a test sample.

The reagent storage 202 includes a reagent rack 213 that rotatably holds a plurality of reagent containers 212, and this reagent rack 213 holds the second reagent contained in the reagent containers 212 while keeping it cool. That is, the reagent container 212 accommodates a second reagent that is paired with the first reagent.

The reaction disk 203 removably holds a plurality of fixtures 6 on its circumference. This fixture 6 holds a plurality of reaction vessels 7 in an arc shape with predetermined intervals. In this embodiment, the reaction container 7 is held by the fixture 6 in a vertically removable manner. That is, the reaction disk 203 is equipped with a plurality of fixtures 6 as fixtures for the plurality of reaction vessels 7, and holds the plurality of reaction vessels 7 in a movable manner.

The first reagent dispensing mechanism 204 includes a probe, an arm, and a cleaning tank. The probe aspirates the first reagent in the reagent container 210 held in the reagent rack 211 and performs dispensing to discharge it into the reaction container 7 into which the sample has been discharged. The arm holds the probe so that it can rotate and move up and down. The cleaning tank cleans the probe every time one reagent is dispensed from the probe.

The second reagent dispensing mechanism 205 includes a probe, an arm, and a cleaning tank. The probe aspirates the second reagent in the reagent container 212 held in the reagent rack 213 and dispenses it into the reaction container 7 into which the first reagent has been discharged. The arm holds the probe so that it can rotate and move up and down. The cleaning tank cleans the probe every time one reagent is dispensed from the probe.

The sample dispensing mechanism 206 includes a probe, an arm, and a cleaning tank. The probe aspirates the sample contained in the sample container 209 held on the sample disk 200 and dispenses it into the reaction container 7. The arm holds the probe so that it can rotate and move up and down. The cleaning tank cleans the probe every time one sample is dispensed from the probe.

The first stirring mechanism 207 includes a stirring bar, an arm, and a cleaning tank. The stirring bar stirs the mixture of the sample and the first reagent dispensed into the reaction container 7. The arm holds the stirrer so that it can rotate and move up and down. The cleaning tank cleans the stirrer every time the mixed liquid is stirred.

The second stirring mechanism 208 includes a stirring bar, an arm, and a cleaning tank. The stirrer stirs the mixture of the sample, the first reagent, and the second reagent dispensed into the reaction container 7. The arm holds the stirrer so that it can rotate and move up and down. The cleaning tank cleans the stirrer every time the mixed liquid is stirred.

Furthermore, the automatic analyzer 1 further includes a cleaning mechanism 214 and a measuring section 215. The cleaning mechanism 214 performs a cleaning process on the reaction vessel 7 after the test measurement has been completed. Specifically, the cleaning mechanism 214 cleans the reaction vessel 7, dispenses blank water for blank measurement for the next test measurement, and then dries it.

The measurement unit 215 measures the light transmitted through the reaction container 7 out of the light irradiated onto the reaction container 7 containing a solution such as water or a mixed liquid. The cleaning mechanism 214 performs a cleaning process of cleaning and drying the inside of the reaction vessel 7 after the measurement of the mixed liquid by the measurement unit 215. Further, the cleaning mechanism 214 discharges a blank liquid, which is a liquid such as pure water, into the cleaned reaction vessel 7 for blank measurement.

Furthermore, the measuring unit 215 generates blank data by performing a blank measurement in which light transmitted through the reaction container 7 into which the blank liquid is dispensed is detected. In addition, the measuring unit 215 generates standard data by performing standard measurements that detect light transmitted through the mixed liquid in the reaction container 7 into which the standard sample and reagent are dispensed. Further, test data is generated by test measurement that detects light transmitted through the mixed liquid in the reaction container 7 into which the test sample and reagent are dispensed.

The drive section 3 drives various constituent units in the analysis section 2, as described above. More specifically, sample disk 200, reagent rack 211, and reagent rack 213 are individually rotated to move sample container 209, reagent container 210, and reagent container 212, respectively. Further, the drive unit 3 rotates the reaction disk 203 to move the reaction container 7. Further, the drive unit 3 individually drives each of the above-mentioned arms vertically and rotationally, and moves each of the above-mentioned probes, respectively.

As described above, the control section 4 controls the drive section 3 to operate the various constituent units of the analysis section 2. More specifically, in order to perform the test, the control unit 4 sequentially assigns the test items input for each test sample to the reaction vessels 7 that have been cleaned by the cleaning mechanism 214. Then, the cleaning mechanism 214 causes the cleaning mechanism 214 to discharge a blank liquid in the total amount of the sample dispensing amount and the reagent dispensing amount set as the analysis parameters of the test item into the reaction container 7 to which the test item is assigned. . Subsequently, the measurement unit 215 is caused to perform a blank measurement of the reaction vessel 7 into which the blank liquid has been discharged, thereby generating blank data.

Based on the blank data generated by the measurement unit 215, the data processing unit 5 determines whether the reaction container 7 can be used for the test item. In this case, since the blank data is collected multiple times, it is determined whether the reaction container 7 is usable for inspection based on the collected blank data.

When the data processing section 5 determines that the reaction container 7 is usable, the control section 4 causes the sample and reagent for the assigned test item to be dispensed into the reaction container 7. On the other hand, if the data processing section 5 determines that the reaction container 7 is unusable, the control section 4 stops dispensing the sample and reagent for the test item assigned to the reaction container 7. In this case, the canceled test item is further assigned to the reaction vessel 7 to be cleaned next to the reaction vessel 7 determined by the data processing unit 5 to be unusable.

The data processing section 5 includes a calculation section and a data storage section. More specifically, the calculation unit processes the standard data and test data generated by the measurement unit 215 of the analysis unit 2 to generate calibration data, analysis data, etc. for each test item. The data storage section stores and holds the collected standard data, test data, etc., and also saves the calibration data, analysis data, etc. generated by the calculation section.

The calculation unit generates calibration data representing the relationship between the standard value and the standard data for each inspection item from the standard data generated by the measurement unit 215 and the standard value set in advance for the standard sample of this standard data. do. Then, the generated calibration data is output to the output section and is also stored in the data storage section.

Further, the calculation unit reads calibration data of the test item corresponding to the test data generated by the measurement unit 215 from the data storage unit, and calculates a concentration value or an activity value from the calibration data and the test data. Generate analytical data. Then, the generated analysis data is output to the output unit and is also stored in the data storage unit.

The data storage section includes a memory device such as a hard disk, and holds the calibration data generated by the calculation section for each inspection item. In addition, the analysis data of each test item generated by the calculation unit is saved for each test sample.

The output section includes a printing section and a display section. The printing section prints out the calibration data, analysis data, etc. generated by the calculation section of the data processing section 5. That is, the printing section includes, for example, a printer, and prints calibration data, analysis data, etc. on printer paper or the like according to a preset format.

The display unit is equipped with a monitor such as a CRT (Cathode Ray Tube) or a liquid crystal panel, and displays and outputs calibration data, analysis data, etc. Further, the display unit displays an analysis parameter setting screen, a test item setting screen, etc., and allows the user to input various information. For example, on the analysis parameter setting screen, the user is asked to input the analysis parameters for each test item, such as the amount of sample to be dispensed, the amount of first reagent to be dispensed, or the amount of first and second reagents to be dispensed. . Further, the test item setting screen allows the user to set the test items set on the analysis parameter setting screen for each sample.

As described above, the operation unit is a device for a user to input instructions, information, etc., and includes input devices such as a keyboard, a mouse, buttons, and a touch panel. Then, it is possible to input the amount of sample to be dispensed, the amount of first reagent to be dispensed, the amount of first reagent and second reagent to be dispensed, etc. as analysis parameters for each test item. Inputs are also made to set information on each sample to be tested and test items to be tested for each piece of information.

These overall system processes may be performed by a system processing unit that includes a CPU (Central Processing Unit), a storage circuit, etc., and the analysis parameters, test items, etc. of each test item input by operation from the operation unit. The input information is stored in the memory circuit. Then, based on the stored input information, the control section 4, data processing section 5, data processing section 5, and output section are integrated to control the entire automatic analysis apparatus 1.

FIG. 2 is a diagram showing a fixture 6 and a reaction vessel 7 according to one embodiment. As shown in FIG. 1, a plurality of these fixtures 6 are provided on the reaction disk 203. As shown in FIG. 2, a plurality of reaction vessels 7 are provided in one fixture 6. This number is shown as an example and is not limited. The fixture 6 includes a first fixture 60 that fixes the lower part of the reaction vessel 7, and a second fixture 61 that fixes the upper part of the reaction vessel 7. By fixing the reaction container 7 with the fixture 6, it is possible to prevent the reaction container 7 from moving to an unintended location during analysis or from wobbling during operations such as dispensing and stirring.

Both the first fixture 60 and the second fixture 61 may be molded by filling a mold with a material. That is, the first fixture 60 and the second fixture 61 may each be integrally molded.

The reaction container 7 is inserted into the insertion part of the first fixture 60, and its lower part is fixed. The upper portion of the reaction container 7, whose lower portion is fixed, is further fixed by covering the hollow top portion with a second fixture 61 shaped like a lid. By fixing the lower and upper parts, the reaction container 7 is firmly fixed to the extent that the fixture 6 does not wobble or the like.

The fixture 6 may include a fitting portion so that the first fixture 60 and the second fixture 61 are firmly fixed. For example, the first fixture 60 includes a plurality of first fitting portions 60K, and the second fixture 61 includes a plurality of corresponding second fitting portions 61K. The corresponding first fitting part 60K and second fitting part 61K are constructed using fitting members, and the fixture 6 sandwiching the reaction container 7 is fixed by these fitting parts.

FIG. 3 is a perspective view schematically showing an example of the reaction container 7. As shown in FIG. The reaction container 7 is made of a material that transmits light necessary for testing, such as glass or plastic. These materials may include substances that have properties such that they suitably conduct the temperature within the thermostatic chamber to the liquid stored therein. In addition, the reaction vessel 7 may be coated with a coating material for adjusting water repellency, light transmittance, etc. on these materials, if necessary. Different coating materials may be used on the inside and outside of the reaction vessel 7.

For example, as described above, the reaction container 7 is made of a material that transmits light necessary for testing. Then, based on the inspection details, the content liquid is analyzed by irradiating the content liquid with light having predetermined characteristics and acquiring transmitted light, reflected light, etc.

The reaction container 7 includes a side wall 71 and a bottom wall 72. The side wall 71 and the bottom wall 72 are continuously formed so that liquid is stored in the area surrounded by the side wall 71 and the bottom wall 72. In the figures, unless otherwise specified, dashed lines indicate boundaries of the outer surface and dotted lines indicate boundaries of the inner surface.

Side wall 71 is formed to surround hollow region 70. The side wall 71 includes an inner wall 71a that forms the inside of the reaction container 7 and comes into contact with the liquid to be inspected, and an outer wall that forms the outside of the reaction container 7 and comes into contact with the constant temperature liquid stored in the thermostatic chamber. 71b.

A hollow region 70 is formed by the inner wall 71a, and a sample liquid, a test liquid, etc. necessary for testing are injected into this hollow region 70. Further, devices necessary for inspection, such as a probe, a stirrer, and a cleaning nozzle, are inserted into the hollow region 70.

The outer wall 71b is in contact with the constant temperature liquid in the constant temperature bath. The fixture 6 mainly fixes the reaction container 7 by pressing this outer wall 71b. The first fixture 60 is hung from the center to the lower part of the outer wall 71b to fix the outer wall 71b. The second fixture 61 fixes the top side of the outer wall 71b.

The bottom wall 72 forms the inside of the reaction container 7 and comes into contact with the liquid to be inspected, and the inner bottom wall 72a forms the outside of the reaction container 7 and comes into contact with the constant temperature liquid stored in the thermostatic chamber. An outer bottom wall 72b. The bottom wall 72 is formed continuously with the side wall 71 to form the reaction vessel 7.

The inner bottom wall 72a is continuous with the inner wall 71a, and liquid is stored here.

The outer bottom wall 72b is continuous with the outer wall 71b, and, for example, the first fixture 60 is fitted around it and around the outer wall 71b to fix the lower part of the reaction container 7.

FIG. 4 is a bottom view schematically showing how the reaction container 7 is fixed to the fixture 6. The bottom wall 72 of the reaction vessel 7 is fixed by a first fixture 60. The first fixture 60 is formed to surround the bottom wall 72 of the reaction vessel 7, and a first partition plate extends from the area formed to surround the bottom wall 72 between adjacent reaction vessels 7 as shown in FIG. Equipped with 62.

The side wall 62a of the first partition plate 62 is formed to be in contact with the outer wall 71b of the reaction container 7. In this way, between adjacent reaction vessels 7, the outer wall 71b of the reaction vessel 7 and the side wall 62a of the first partition plate 62 are in contact with each other, and the bottom wall 72 is fitted into the first fixture 60. As a result, the first fixture 60 fixes the reaction container 7 at the lower part of the reaction container 7.

FIG. 5 is a plan view schematically showing how the reaction container 7 is fixed to the fixture 6. In the figure below, three reaction vessels 7 are housed, but the invention is not limited to this, and even more reaction vessels 7 may be housed in the fixture 6 as shown in FIG. good. Further, the dotted line represents the inner wall of the reaction vessel 7 seen through, and the broken line represents the outer wall of the reaction vessel 7 seen through.

In plan view, the reaction vessel 7 comprises a hollow region 70 at the top, which is surrounded by four side walls 71. The side wall 71 includes an inner wall 71a and an outer wall 71b. The inner wall 71a is continuous with the bottom wall 72 of the reaction container 7 on the inside of the reaction container 7, and prevents the contents from leaking outside. The outer wall 71b is an outer wall that comes into contact with the first fixture 60 and the second fixture 61, and comes into contact with the constant temperature liquid stored in the constant temperature bath.

As shown in FIG. 1, the second fixture 61 includes a second partition plate 63. Since the outer wall 71b of the reaction container 7 and the side wall 63a of the second partition plate 63 are in contact with each other between adjacent reaction containers 7, the second fixture 61 fixes the reaction container 7 at the upper part of the reaction container 7.

In the region around the top of the reaction vessel 7, one opposite side is in contact with the inner wall 61a of the second fixture 61 and the upper part of the outer wall 71b as shown in FIG. is arranged so that the side wall 63a of the second partition plate 63 and the upper part of the outer wall 71b are in contact with each other, and the upper part is fixed.

In this way, the plurality of reaction vessels 7 have wobble at both the lower and upper parts because the outer walls 71b extending from the top and bottom are fitted into the first partition plate 62 and the second partition plate 63, respectively. It is fixed to the fixture 6 to prevent it from happening.

By being stored in the reaction disk 203 shown in FIG. 1 in this state, the fixture 6 can move the reaction container 7 within the reaction disk 203 while maintaining the ambient temperature, and can also move the reaction container 7 within the reaction disk 203 during inspection. Suppresses wobbling, etc.

FIG. 6 is a sectional view taken along line AA in FIG. In this figure, the dotted line indicates a perspective surface that is not displayed in the cross-sectional view. As described above, in the reaction vessel 7, the side wall 71 including the outer wall 71b and the inner wall 71a, and the bottom wall 72 including the inner bottom wall 72a and the outer bottom wall 72b are continuously formed, and the hollow region 70 is Various necessary items are inserted.

A side surface of the reaction container 7 is fitted with a first partition plate 62 and a second partition plate 63. First, after the reaction container 7 is fixed to the first fixture 60, the upper part is fixed by the second fixture 61 by combining the fitting parts 60K and 61K shown in FIG. 1, respectively. With this arrangement, the side wall 62a of the first partition plate 62 and the side wall 63a of the second partition plate 63 are in close contact with the outer wall 71b of the reaction container 7, and the reaction container 7 is fixed to the fixture 6.

For example, a sample is dispensed into the reaction container 7 up to the position shown in A. On the other hand, the fixture 6 is installed in the reaction disk 203 of FIG. 1 so as to be immersed in the constant temperature liquid up to the position shown in B, for example. In this case, the constant temperature liquid may reach the upper part of the reaction vessel 7 due to capillary action. In order to avoid this, in this embodiment, a distance d is provided between the first partition plate 62 and the second partition plate 63.

By providing this distance d, the rise in the water level between the reaction vessels 7 due to the capillary phenomenon occurring between the outer wall 71b and the side wall 63a is interrupted at the top of the first partition plate 62. This distance d is made longer than the predetermined length l. This predetermined length changes depending on various factors such as the distance between the reaction vessels 7, the characteristics of the outer wall 71b of the reaction vessels 7, the characteristics of the side wall 62a of the first partition plate 62, and the characteristics of the constant temperature liquid. Therefore, it may be determined based on the environment in which the reaction container 7 is installed. For example, the predetermined length may define a fixed length, such as a length of 2 mm or more.

As described above, according to the present embodiment, while preventing the thermostatic liquid from rising to the upper part of the reaction vessel 7 due to capillary action, the reaction vessel 7 is fixed to the fixture 6 in the thermostatic chamber, The fixture 6 can be made movable. Therefore, visibility in the reaction container 7 can be improved, and intrusion of the constant temperature liquid into the reaction container 7 can be suppressed. Furthermore, according to such a structure, since an adhesive or the like is not required, the reaction container 7 can be easily replaced.

The arm to which each sensor and nozzle are connected may be controlled by a CPU or the like that performs system control. These processes may be performed by a processing circuit, or each sensor may be controlled by software processing via the processing circuit. This processing circuit may be a CPU as described above, or may be implemented using an FPGA (Field Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit).

Although several embodiments have been described above, these embodiments are presented only as examples and are not intended to limit the scope of the invention. The novel apparatus and methods described herein can be implemented in a variety of other forms. Furthermore, various omissions, substitutions, and changes can be made to the apparatus and method described in this specification without departing from the spirit of the invention. The appended claims and their equivalents are intended to cover such forms and modifications as fall within the scope and spirit of the invention.

1: Automatic analyzer,
2: Analysis Department,
3: Drive part,
4: Control unit,
5: Data processing section,
200: Sample disk, 201, 202: Reagent storage, 203: Reaction disk, 204: First reagent dispensing mechanism, 205: Second reagent dispensing mechanism, 206: Sample dispensing mechanism, 207: First stirring mechanism, 208 : 2nd stirring mechanism, 209: Sample container, 210, 212: Reagent container, 211, 213: Reagent rack, 214: Cleaning mechanism, 215: Measurement section,
6: Fixtures,
60: 1st fixture, 61: 2nd fixture, 62: 1st partition plate, 63: 2nd partition plate,
7: Reaction vessel

Claims (11)

a reaction vessel in which the dispensed solution is reacted in an area surrounded by the inside of the bottom and the inside of the side;
a constant temperature bath in which liquid at a predetermined temperature is stored;
A fixture for fixing a plurality of reaction vessels and inserting them into the constant temperature bath,
a first fixture that fixes at least a portion of the outer lower part of the bottom surface or the side surface;
a second fixture that fixes at least a portion of the outer upper part of the side surface of the reaction vessel;
Equipped with
A gap of a predetermined length is provided between the first fixture and the second fixture so that the liquid that rises from the surface of the liquid due to capillary action by the first fixture does not reach the first fixture. a fixture having;
An automatic analyzer equipped with The first fixture further fixes at least a portion of the outside of the bottom surface.
The automatic analyzer according to claim 1. the first fixture is integrally molded;
An automatic analyzer according to claim 1 or 2. The second fixing device further fixes at least a portion of the top of the side surface.
An automatic analyzer according to any one of claims 1 to 3. The first fixture includes a first partition plate extending between the two adjacent reaction vessels and fixing at least a part of the outer lower part of the side surface,
The second fixture includes a second partition plate extending between the two adjacent reaction vessels and fixing at least a part of the outer upper part of the side surface.
An automatic analyzer according to any one of claims 1 to 4. The second partition plate has a tapered shape at the lower part,
The automatic analyzer according to claim 5. the second fixture is integrally molded;
An automatic analyzer according to any one of claims 1 to 6. The predetermined length is determined by the installation distance of two adjacent reaction vessels in the fixture, the material of the reaction vessels, and the properties of the liquid.
An automatic analyzer according to any one of claims 1 to 7. The predetermined length has a length of 2 mm or more,
An automatic analyzer according to any one of claims 1 to 8. a reaction vessel in which the dispensed solution is reacted in an area surrounded by the inside of the bottom and the inside of the side;
a constant temperature bath in which liquid at a predetermined temperature is stored;
A fixture for fixing a plurality of reaction vessels and inserting them into the constant temperature bath,
a first fixture that fixes at least a portion of the outer lower part of the bottom surface or the side surface;
a second fixture that fixes at least a portion of the outer upper part of the side surface of the reaction container;
Equipped with
A gap of a predetermined length is provided between the first fixture and the second fixture so that the liquid raised from the liquid level by the first fixture does not reach the first fixture; Fixtures and
Equipped with
The second fixing device further fixes at least a portion of the top of the side surface.
Automatic analyzer. a reaction vessel in which the dispensed solution is reacted in an area surrounded by the inside of the bottom and the inside of the side;
a constant temperature bath in which liquid at a predetermined temperature is stored;
A fixture for fixing a plurality of reaction vessels and inserting them into the constant temperature bath,
a first fixture that fixes at least a portion of the outer lower part of the bottom surface or the side surface;
a second fixture that fixes at least a portion of the outer upper part of the side surface of the reaction vessel;
Equipped with
A gap of a predetermined length is provided between the first fixture and the second fixture so that the liquid raised from the liquid level by the first fixture does not reach the first fixture; Fixtures and
Equipped with
The predetermined length is determined by the installation distance of two adjacent reaction vessels in the fixture, the material of the reaction vessels, and the properties of the liquid.
Automatic analyzer.