JP2013246055A - Autoanalyzer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an autoanalyzer of which the detergency of an analysis unit which contacts a sample or reagent can be improved.SOLUTION: An autoanalyzer includes: a pump 42 which feeds cleaning fluid for cleaning a sample dispensation probe from an accumulation tank 41; a tank 43 provided with a first opening 431 in which the cleaning fluid flows, a second opening 432 from which the supplied cleaning fluid flows out, and a third opening 433 which communicates with the atmosphere, and of which except the first and third openings 431 and 433 is closed; an on-off valve 44 which opens/closes the third opening 433; and a cleaning tank 45 provided with a discharge opening 451 from which the cleaning fluid flown out from the second opening 432 is discharged, opens the third opening 433, and stops flow-in of the cleaning fluid from the first opening 431 when the cleaning fluid in the tank 43 is higher than predetermined height H while cleaning of the sample dispensation probe is stopped.

Description

  Embodiments described herein relate generally to an automatic analyzer that measures a mixed solution of a sample and a reagent.

  The automatic analyzer is intended for biochemical test items, immunological test items, etc., and changes in color tone and turbidity caused by the reaction of the mixture of the test sample collected from the sample and the reagent of each test item, Optical data is measured by a photometric unit of a spectrophotometer or a turbidimetric meter to generate analysis data represented by the concentration of the test item component in the sample, the activity of the enzyme, and the like.

  In this automatic analyzer, an inspection item set in accordance with an inspection is analyzed from a plurality of inspection items for each test sample. The sample dispensing probe sucks each test sample stored in the sample container and discharges it to the reaction container. The reagent dispensing probe sucks the reagent contained in the reagent container and discharges it to the reaction container. The stirrer stirs the mixed solution of the test sample and the reagent discharged into the reaction container. The photometric unit measures a mixed solution of the test sample and the reagent discharged into the reaction container.

  The sample dispensing probe is washed by the washing unit every time the dispensing of the test sample is completed. The reagent dispensing probe is washed by the washing unit every time the reagent dispensing is completed. The stirrer is washed by the washing unit every time the mixed solution is stirred. The cleaning unit that cleans each analysis unit of the sample dispensing probe, the reagent dispensing probe, and the stirring bar is a washing tank that discharges the cleaning solution toward the portion of the analysis unit that is in contact with each liquid of the sample, the reagent, and the mixed solution And a pump for supplying a cleaning liquid to the cleaning tank.

JP 2008-292394 A

  However, since bubbles are mixed in the cleaning liquid discharged from the discharge port and scattered in a direction other than the portion in contact with each liquid, there is a problem that the cleaning power for cleaning each analysis unit is reduced.

  Embodiments of the present invention have been made to solve the above problems, and an object thereof is to provide an automatic analyzer that can improve the cleaning power of an analysis unit that comes into contact with a liquid.

  In order to achieve the above object, an automatic analyzer according to an embodiment is an automatic analyzer having an analysis unit for measuring a mixed solution of a sample and a reagent, and is in contact with the sample, the reagent, or the mixed solution. A pump that sends out the cleaning liquid for cleaning the analysis unit from the storage tank, a first opening through which the cleaning liquid sent out by the pump flows in, and a second opening through which the cleaning liquid that flows in from the first opening flows out A third opening that is located above the first and second openings and communicates with the outside air, and the tank is closed except for the first to third openings; An opening / closing valve that opens and closes the third opening, a cleaning tank in which a discharge port for discharging the cleaning liquid flowing out from the second opening is provided below the third opening, and the third opening In the closed state And an analysis control unit that causes the analysis unit to be cleaned with a cleaning liquid discharged from the discharge port in response to the inflow from the first opening, and the analysis control unit includes: If the liquid level of the cleaning liquid in the tank is higher than a predetermined height located above the discharge port and the second opening while the cleaning of the analysis unit is stopped, the third opening And the inflow of the cleaning liquid from the first opening is stopped.

The block diagram which shows the structure of the automatic analyzer which concerns on embodiment. The perspective view which shows the structure of the analysis part which concerns on embodiment. The figure which shows an example of a structure of the washing | cleaning part which concerns on embodiment. Sectional drawing which shows the structure of the tank which concerns on embodiment, and a washing tank. The figure which shows the washing | cleaning liquid which flows out from the discharge outlet of the washing tank which concerns on embodiment. The figure which shows the air which flows in from the discharge outlet of the washing tank which concerns on embodiment. The figure which shows the direction of the cleaning liquid discharged from the discharge outlet of the cleaning tank which concerns on embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration of an automatic analyzer according to the embodiment. This automatic analyzer 100 dispenses a sample such as a standard sample or test sample for each test item and a reagent used for analysis of each test item, and measures the mixture to generate standard data or test data. And an analysis control unit 25 that drives each unit of the analysis unit 24 to control a dispensing operation, a measurement operation, a cleaning operation, and the like.

  The automatic analyzer 100 also processes the standard data and test data generated by the analysis unit 24 to generate calibration data and analysis data, and the calibration data generated by the data processing unit 30. An output unit 33 that prints out and displays analysis data, an operation unit 36 that inputs various command signals, a system control unit that controls the analysis control unit 25, the data processing unit 30, and the output unit 33 in an integrated manner. 37.

  FIG. 2 is a perspective view showing the configuration of the analysis unit 24. The analysis unit 24 includes a sample container 17 that accommodates each sample such as a standard sample and a test sample collected from a subject, and a sample disk 5 that holds the sample container 17. In addition, a reagent container 6 that houses a first reagent and a two reagent system of the first reagent that react with components of the test item included in each sample, a reagent rack 1a that rotatably holds the reagent container 6, and a reagent And a reagent storage 1 that keeps the reagent containers 6 held in the rack 1a cold.

  In addition, a reagent container 7 that houses a second reagent that forms a pair with the first reagent of the two-reagent system, a reagent rack 2a that rotatably holds the reagent container 7, and a reagent container 7 that is held in the reagent rack 2a And a reaction disk 4 for rotatably holding a plurality of reaction vessels 3 arranged on the circumference.

  Further, the sample dispensing probe 16 for dispensing each sample in the sample container 17 held on the sample disk 5 and sucking it into the reaction container 3, and the sample dispensing probe 16 can be rotated and moved up and down. The sample dispensing arm 10 that is held by the sample dispensing arm 10 and a cleaning unit 40 that cleans the portion of the sample dispensing probe 16 that comes into contact with the sample at the end of dispensing of each sample.

  In addition, the first reagent dispensing probe 14 for aspirating the first reagent in the reagent container 6 held in the reagent rack 1a and dispensing it into the reaction container 3 from which the sample has been discharged, and the first reagent The first reagent dispensing arm 8 that holds the dispensing probe 14 so as to be rotatable and vertically movable, and the portion of the first reagent dispensing probe 14 in contact with the first reagent is washed each time dispensing of the first reagent is completed. And a cleaning unit 50. Also, a first stirrer 18 that stirs the mixed solution of the sample and the first reagent discharged into the reaction vessel 3, a first stirrer arm 20 that holds the first stirrer 18 so as to be rotatable and vertically movable, A cleaning unit 60 is provided for cleaning a portion of the first stirring bar 18 in contact with the mixed solution every time the mixed solution is stirred.

  In addition, the second reagent dispensing probe 15 for aspirating the second reagent in the reagent container 7 held in the reagent rack 2a and dispensing it into the reaction container 3 from which the first reagent has been discharged, and the first reagent The second reagent dispensing arm 9 that holds the two reagent dispensing probes 15 so as to be rotatable and vertically movable, and the portion of the second reagent dispensing probe 15 that is in contact with the second reagent every time the second reagent dispensing is completed. And a cleaning unit 70 for cleaning. In addition, a second stirrer 19 that stirs the liquid mixture of the sample discharged into the reaction vessel 3 and the first and second reagents, and a second stirrer that holds the second stirrer 19 so as to be rotatable and vertically movable. The arm 21 and the washing | cleaning part 80 which wash | cleans the part which contacted the liquid mixture of the 2nd stirring element 19 each time the liquid mixture stirring was completed are provided.

  Moreover, the photometry part 13 which irradiates light to the reaction container 3 and optically measures, and the reaction container washing | cleaning unit 12 which wash | cleans the inside of the reaction container 3 which complete | finished measurement by the photometry part 13 are provided. And the photometry part 13 detects the light which permeate | transmitted the liquid mixture containing the standard sample in the reaction container 3, and each test sample. Based on the detected detection signal, for example, standard data or test data represented by absorbance data is generated, and the generated standard data or test data is output to the data processing unit 30.

  The analysis control unit 25 drives and controls the drive mechanism unit 26 having a mechanism for driving each analysis unit of the analysis unit 24, the drive mechanisms of the drive mechanism unit 26, and the cleaning units 40 to 80 of the analysis unit 24. Part 27. Then, the drive mechanism unit 26 drives the sample disk 5, the reagent rack 1a, and the reagent rack 2a to rotate. Further, the reaction disk 4 is driven to rotate. Further, the sample dispensing arm 10, the first reagent dispensing arm 8, and the second reagent dispensing arm 9 are rotated and driven up and down, respectively, so that the sample dispensing probe 16, the first reagent dispensing probe 14, and the second reagent dispensing are performed. The probe 15 is moved.

  The data processing unit 30 shown in FIG. 1 includes a calculation unit 31 that processes standard data and test data output from the photometry unit 13 of the analysis unit 24 to generate calibration data and analysis data for each inspection item, A data storage unit 32 for storing the standard data and analysis data generated by the unit 31.

  The calculation unit 31 generates calibration data representing the relationship between the standard value and the standard data for each inspection item from the standard data output from the photometry unit 13 and a standard value preset for the standard sample of the standard data. . The generated calibration data is output to the output unit 33 and stored in the data storage unit 32.

  Further, the calibration data of the inspection item corresponding to the test data output from the photometry unit 13 is read from the data storage unit 32, and the concentration value and the test data output from the photometry unit 13 using the read calibration data are obtained. Generate analytical data represented by activity values. The generated analysis data is output to the output unit 33 and stored in the data storage unit 32.

  The data storage unit 32 includes a memory device such as a hard disk, and stores the calibration data output from the calculation unit 31 for each inspection item. Moreover, the analysis data of each inspection item output from the calculation unit 31 is stored for each test sample.

  The output unit 33 includes a printing unit 34 that prints and outputs calibration data and analysis data output from the calculation unit 31 of the data processing unit 30 and a display unit 35 that displays and outputs the data. The printing unit 34 includes a printer or the like, and prints the calibration data and analysis data output from the calculation unit 31 on printer paper or the like according to a preset format.

  The display unit 35 includes a monitor such as a CRT or a liquid crystal panel, and displays calibration data and analysis data output from the calculation unit 31. In addition, an analysis parameter setting screen for setting analysis parameters for analyzing each inspection item is displayed. In addition, an inspection item setting screen for setting inspection items to be inspected for each test sample is displayed.

  The operation unit 36 includes input devices such as a keyboard, a mouse, a button, and a touch key panel, and performs input for setting analysis parameters on the analysis parameter setting screen displayed on the display unit 35 of the output unit 33. Further, an input for setting an inspection item for each test sample is performed on the inspection item setting screen displayed on the display unit 35.

  The system control unit 37 includes a CPU and a storage circuit. Then, based on the analysis parameters and inspection items set by the input from the operation unit 36, the analysis control unit 25, the data processing unit 30, and the output unit 33 are integrated to control the entire system.

Next, an example of the configuration of the cleaning unit 40 in the analysis unit 24 will be described with reference to FIGS. 3 and 4.
FIG. 3 is a diagram illustrating an example of the configuration of the cleaning unit 40. The cleaning unit 40 includes a storage tank 41 that stores a cleaning liquid for cleaning the sample dispensing probe 16, a pump 42 that sends out the cleaning liquid from the storage tank 41, and a tank 43 into which the cleaning liquid sent out by the pump 42 flows. I have. In addition, an opening / closing valve 44 that opens and closes a part of the tank 43 and a cleaning tank 45 in which the sample dispensing probe 16 is cleaned by a cleaning liquid that flows out of the tank 43 in response to the inflow into the tank 43 are provided. The pump 42 and the on-off valve 44 are driven and controlled by the drive control unit 27 of the analysis control unit 25.

  The storage tank 41 is disposed below the analysis unit 24 so as not to hinder the operation of each analysis unit of the analysis unit 24. The pump 42 is disposed below the tank 43 and the cleaning tank 45, and communicates with the tank 43 via a flexible tube 46 so that piping can be performed using a limited space. And when the operation | movement which sends out the washing | cleaning liquid from the storage tank 41 and flows in into the tank 43 has stopped, the backflow to the storage tank 41 of the washing | cleaning liquid in the tank 43 or the tube 46 is blocked | prevented.

FIG. 4 is a cross-sectional view showing the configuration of the tank 43 and the cleaning tank 45.
The tank 43 is disposed in the vicinity of the cleaning tank 45, and includes a first opening 431 into which the cleaning liquid sent out by the pump 42 flows, a second opening 432 from which the cleaning liquid flowing in from the first opening 431 flows out, and A third opening 433 communicating with the outside air is provided, and the portions other than the first to third openings 431 to 433 are closed. The first opening 431 is positioned above the second opening 432, and the second opening 432 is provided at the lower end of the tank 43. The third opening 433 is located above the first opening 431 and is provided at the upper end of the tank 43.

  Thus, by providing the tank 43 between the pump 42 and the cleaning tank 45 and disposing the second opening 432 below the first opening 431, the solubility of the gas in the storage tank 41 and the tube 46 is increased. Bubbles generated from the cleaning liquid due to a change or the like rise when mixed into the cleaning liquid from the first opening 431 and flow into the cleaning liquid. Therefore, mixing of the bubbles into the cleaning liquid flowing out from the second opening 432 can be prevented. .

  One end of the on-off valve 44 communicates with the third opening 433 of the tank 43, and the other end communicates with the cleaning tank 45 via the pipe 47. Then, the third opening 433 is closed while the sample dispensing probe 16 is being cleaned. Further, the third opening 433 is opened while the cleaning of the sample dispensing probe 16 is stopped.

  The cleaning tank 45 has an opening at the top where the sample dispensing probe 16 that has finished dispensing the same sample enters. A discharge port 451 that is located at the same height as the second opening 432 of the tank 43 and communicates with the second opening 432 is provided. Further, an exhaust port 452 that is located above the third opening 433 and communicates with the other end of the on-off valve 44 through the pipe 47 is provided. Further, a drainage port 453 through which the cleaning liquid discharged from the discharge port 451 is discharged is provided at the bottom.

Hereinafter, an example of the operation of the cleaning unit 40 in the analysis unit 24 of the automatic analyzer 100 will be described with reference to FIGS. 1 to 6.
When a start input for analyzing each test item for each test sample is made from the operation unit 36, the automatic analyzer 100 starts its operation. The drive control unit 27 of the analysis control unit 25 drives and controls the pump 42 and the on-off valve 44 of the cleaning unit 40 and starts the third opening 433 of the tank 43 before starting the sample dispensing operation. A cleaning liquid having a flow rate larger than the flow rate flowing out of the second opening 432 is caused to flow from the first opening 431. Then, the pump 42 is made to perform the filling operation for a full tank time which is a time required for the tank 43 to be filled with the cleaning liquid from the empty state and to flow out from the third opening 433.

  In this way, by opening the third opening 433, bubbles that have flowed into the tank 43 and bubbles generated in the tank 43 can be discharged out of the tank 43 from the third opening 433.

  After the completion of the filling operation of the pump 42, the drive control unit 27 stops the sample dispensing probe 16 at the cleaning position W and closes the third opening 433 for the cleaning time, as shown in FIG. Then, the cleaning liquid is caused to flow from the first opening 431 with the third opening 433 closed. In response to the inflow from the first opening 431, the outflowing cleaning liquid flows out from the second opening 432 and is discharged from the discharge port 451 of the cleaning tank 45 in the direction of the arrow. When the cleaning liquid discharged from the discharge port 451 hits the lower end of the sample dispensing probe 16 at the cleaning position W, the portion of the sample dispensing probe 16 in contact with the sample is cleaned. Then, the sample dispensing probe 16 is cleaned every time the same sample is dispensed.

  While the drive control unit 27 stops the cleaning of the sample dispensing probe 16 in order to cause the sample to be dispensed, the liquid level of the cleaning liquid in the tank 43 is higher than the discharge port 451 as shown in FIG. For example, when the height is higher than a predetermined height H located between, for example, the first opening 431 and the third opening 433, the third opening 433 is opened and the first opening is stopped by stopping the pump 42. The inflow of the cleaning liquid from 431 is stopped to allow the cleaning liquid to flow out from the second opening 432. Thereby, a cleaning liquid having a smaller flow rate than that when the sample dispensing probe 16 is being cleaned flows out from the discharge port 451 in the direction of the arrow.

  If the third opening 433 is closed while the cleaning of the sample dispensing probe 16 is stopped, there is a difference in the level of the cleaning liquid between the discharge port 451 and the pump 42. Due to the compression of the bubbles generated in the tube 46, the cleaning liquid in the discharge port 451 and the second opening 432 flows backward in the direction of the tube 46 and air flows in from the discharge port 451. As shown in FIG. Or air stays in the second opening 432. In addition, bubbles are generated from the cleaning liquid in the discharge port 451 and the second opening 432 and are retained. Then, when the cleaning liquid is discharged from the discharge port 451 when bubbles or air stays in the discharge port 451 or the second opening 432, as shown in FIG. 7, the discharged cleaning liquid comes into contact with the sample. It scatters in the direction of the arrow other than the sample dispensing probe 16 portion. In addition, the amount of cleaning liquid discharged from the discharge port 451 decreases.

  In this manner, while the cleaning of the sample dispensing probe 16 is stopped, the third opening 433 is opened and the cleaning liquid flows out from the discharge port 451, thereby causing the discharge port 451 and the second opening 432 to flow. It is possible to prevent bubbles and air staying from the cleaning liquid. As a result, it is possible to prevent scattering of the cleaning liquid discharged from the discharge port 451 in a direction other than the portion of the sample dispensing probe 16 in contact with the sample, and a reduction in the amount of the cleaning liquid discharged from the discharge port 451. The cleaning power of the dispensing probe 16 can be improved.

  A detector that detects the level of the cleaning liquid in the tank 43 is provided, and the level of the cleaning liquid that has fallen to a predetermined height H in the tank 43 is detected based on a detection signal from the detector. May be.

  After the filling operation of the pump 42 is stopped, while the cleaning of the sample dispensing probe 16 is stopped, the cleaning liquid flows out from the discharge port 451 while the third opening 433 is open. Then, after the filling operation of the pump 42 is stopped, the cleaning liquid in the tank 43 reaches a predetermined height H when the total time during which the third opening 433 is opened reaches a preset limit time. To come down.

  The drive control unit 27 calculates the total time that the third opening 433 is opened after the pump 42 has been filled and finished the operation, and the total reaches the limit time and the cleaning liquid in the tank 43 reaches a predetermined high level. When the height is lowered to H, the cleaning liquid having a flow rate larger than the flow rate flowing out from the second opening portion 432 is caused to flow from the first opening portion 431 with the third opening portion 433 being opened. Then, the pump 42 is made to perform a replenishment operation for a replenishment time which is a time required for the cleaning liquid in the tank 43 to be filled from the state of the predetermined height H and to flow out from the third opening 433.

  Further, when the total amount of time that the third opening 433 is opened after the pump 42 finishes the replenishment operation is calculated, and the cleaning liquid in the tank 43 falls to a predetermined height H, the pump 42 is returned to the pump 42 again. Let the replenishment action be performed.

  As described above, when the cleaning liquid in the tank 43 is lowered to the predetermined height H, the cleaning liquid is replenished in the tank 43, so that the cleaning of the sample dispensing probe 16 is stopped from the discharge port 451 continuously. The washing liquid can be allowed to flow out.

  Then, after the dispensing of all the test samples is finished and the sample dispensing probe 16 is washed, the drive control unit 27 stops the operation of each analysis unit and the washing unit 40 of the analysis unit 24, and the output unit When all the analysis data is output from 33, the automatic analyzer 100 stops its operation.

  The cleaning units 50 to 80 are configured in the same manner as the cleaning unit 40. Since each of the cleaning units 50 to 80 operates in the same manner as the pump 42 and the on-off valve 44 of the cleaning unit 40 by the drive control of the drive control unit 27, the description thereof is omitted.

  According to the embodiment of the present invention described above, the tank 43 is provided between the pump 42 and the cleaning tank 45, and the second opening 432 is disposed below the first opening 431. Since bubbles generated from the cleaning liquid due to a change in the solubility of the gas in the tube 46 are mixed and flowed into the cleaning liquid from the first opening 431, the cleaning liquid flows out from the second opening 432 of the bubbles. Can be prevented. In addition, an on-off valve 44 that opens and closes the third opening 433 is provided, and by opening the third opening 433, bubbles that have flowed into the tank 43 and bubbles generated in the tank 43 are removed from the third opening. It can be discharged out of the tank 43 from 433.

  When the cleaning liquid in the tank 43 is higher than the predetermined height H while the cleaning of the sample dispensing probe 16 is stopped, the third opening 433 is opened and the cleaning liquid flows out from the discharge port 451. Accordingly, it is possible to prevent air bubbles and air from staying in the discharge port 451 and the second opening 432. Further, when the cleaning liquid in the tank 43 is lowered to a predetermined height H, the cleaning liquid is replenished in the tank 43, and the cleaning liquid flows out from the discharge port 451 while the cleaning of the sample dispensing probe 16 is stopped. Can be made.

  As a result, it is possible to prevent the cleaning liquid discharged from the discharge port 451 from being scattered in a direction other than the portion of the sample dispensing probe 16 in contact with the sample, and the amount of the cleaning liquid discharged from the discharge port 451 from being reduced. The cleaning power of the dispensing probe 16 can be improved.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

40 Washing part 41 Storage tank 42 Pump 43 Tank 44 On-off valve 45 Washing tank 431 First opening part 432 Second opening part 433 Third opening part 451 Discharge port

Claims (9)

In an automatic analyzer equipped with an analysis unit for measuring a mixture of a sample and a reagent,
A pump for sending out a cleaning liquid from the storage tank for cleaning the analysis unit in contact with the sample, the reagent or the mixed solution;
A first opening through which the cleaning liquid sent out by the pump flows in, a second opening through which the cleaning liquid flowing in from the first opening flows out, and a position above the first and second openings. A third opening that communicates with the outside air, and a tank that is closed except for the first to third openings;
An on-off valve for opening and closing the third opening;
A cleaning tank in which a discharge port through which the cleaning liquid flowing out from the second opening is discharged is provided below the third opening;
The analysis unit is cleaned by the cleaning liquid discharged from the discharge port in response to the inflow from the first opening with the third opening closed. With an analysis control unit,
When the analysis control unit stops cleaning the analysis unit, the liquid level of the cleaning liquid in the tank is higher than a predetermined height positioned above the discharge port and the second opening. An automatic analyzer that opens the third opening and stops the flow of the cleaning liquid from the first opening.   While the analysis control unit stops cleaning the analysis unit, when the cleaning liquid in the tank is lowered to the predetermined height, the second opening is opened with the third opening being opened. 2. The automatic analyzer according to claim 1, wherein a cleaning liquid having a flow rate larger than a flow rate flowing out of the first portion is caused to flow from the first opening.   The predetermined height is a height when the total time during which the third opening is opened after the tank is filled with the cleaning liquid by the pump reaches a preset limit time. The automatic analyzer according to claim 1, wherein the automatic analyzer is provided. Having a detector for detecting the level of the cleaning liquid in the tank;
The automatic analyzer according to claim 1 or 2, wherein the predetermined height is a height detected based on a detection signal of the detector.   The first opening is located above the second opening, and the third opening is located at the upper end of the tank. An automatic analyzer according to the above. The open / close valve has one end communicating with the third opening and the other end communicating with the cleaning tank,
6. The automatic analysis according to claim 1, wherein an exhaust port communicating with the other end of the on-off valve is provided in the cleaning tank above the discharge port. apparatus.   7. The automatic analysis according to claim 1, wherein the analysis unit is a sample dispensing probe that sucks the sample from a sample container containing the sample and discharges the sample into a reaction container. apparatus.   7. The automatic analysis according to claim 1, wherein the analysis unit is a reagent dispensing probe that sucks the reagent from a reagent container containing the reagent and discharges the reagent to a reaction container. apparatus.   The automatic analyzer according to claim 1, wherein the analysis unit is a stirrer that stirs the mixed solution in a reaction container that stores the mixed solution.

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