JP2014070900A - Autoanalyzer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an autoanalyzer capable of reducing a burden on an operator and rapidly performing re-inspection.SOLUTION: An autoanalyzer comprises: a reaction vessel 17 that stops at each stop position different for each one cycle time and stops at the same stop position for each one round time; a washing nozzle 30 for washing the reaction vessel 17; a sample dispensing probe 19 for discharging a sample into the reaction vessel 17; first and second reagent dispensing probes 21, 25 for discharging first and second reagents; and a measurement unit for measuring a mixed liquid in the reaction vessel 17. In a case when an analysis sample is discharged into the reaction vessel 17 that stops at a sample discharging position Pa, then a re-inspection sample is discharged into the reaction vessel 17 that stops at the sample discharging position Pa, and an analysis data obtained by measurement of a mixed liquid in the reaction vessel 17 into which the analysis sample has been discharged exceed an upper limit value, the washing of the reaction vessel 17, into which a re-inspection sample firstly stopping at a washing position W has been discharged, is stopped.

Description

  Embodiments described herein relate generally to an automatic analyzer that analyzes components contained in a liquid such as a sample collected from a subject.

  The automatic analyzer is intended for biochemical test items, immunological test items, etc., and optically detects changes in color and turbidity caused by the reaction of the mixture of the test sample collected from the sample and the reagent used for analysis of each test item. Measure automatically. By this measurement, analysis data represented by the concentration of various test item components in the test sample, the activity of the enzyme, and the like are generated.

  The automatic analyzer includes a plurality of reaction vessels that move every cycle time. Then, the sample dispensing probe sucks the test sample from the sample container set on the sample table and discharges it to the reaction container. Further, the reagent dispensing probe sucks a reagent for analyzing the inspection item set according to the inspection from the reagent container and discharges it to the reaction container. The stirrer stirs the mixed solution in the reaction container from which the test sample and the reagent are discharged. The measuring unit measures the mixed liquid in the stirred reaction vessel. Further, the cleaning nozzle cleans the reaction vessel that has finished measuring the mixed solution.

  By the way, when the analysis data is a high value outside the preset range, prepare a diluted sample by diluting the test sample that showed a high value, and measure the mixed solution of the diluted sample and the reagent again. There is an automatic analyzer with an automatic re-inspection function.

JP 2000-221198 A

  However, if the test sample contained in the sample container is also used in another device other than the device having the automatic retest function, the automatic retest may be performed. Cannot be transferred to other devices. For this reason, a heavy burden is placed on an operator who operates an automatic analyzer or another apparatus that needs to perform an inspection quickly.

  The embodiment has been made to solve the above-described problems, and an object thereof is to provide an automatic analyzer that can reduce a burden on an operator and can perform an inspection quickly.

  In order to achieve the above object, the automatic analyzer according to the embodiment moves in one direction every cycle time and stops at each stop position including a cleaning position, a sample discharge position, and a reagent discharge position different from those before the movement. A reaction container that stops at the same stop position every round time that is longer than the one cycle time, a cleaning nozzle that cleans the reaction container stopped at the cleaning position, and a reaction container stopped at the sample discharge position A sample dispensing probe that discharges the sample to the reagent, a reagent dispensing probe that discharges the reagent to the reaction container stopped at the reagent discharging position, and a measurement that measures the mixed solution in the reaction container in which the sample and the reagent are discharged And a reaction container that stops at the sample discharge position after the sample for analysis is discharged into the reaction container that stops at the sample discharge position after being cleaned by the cleaning nozzle When the same sample as that for analysis is discharged for re-examination, and the analysis data obtained by measuring the liquid mixture in the reaction vessel in which the sample for analysis is discharged exceeds a preset upper limit value, And an analysis control unit for stopping the cleaning of the reaction container from which the sample for retesting, which has been stopped for the first time at the cleaning position after being cleaned by the cleaning nozzle, is discharged.

The block diagram which shows the structure of the automatic analyzer which concerns on 1st Embodiment. The perspective view which shows the structure of the analysis part which concerns on 1st Embodiment. The figure which shows each stop position of each reaction container hold | maintained at the reaction table which concerns on 1st Embodiment, and the position of a measurement part. The figure which shows the structure of the washing nozzle which concerns on 1st Embodiment, and each stop position of each reaction container. The figure which shows an example of the analysis parameter setting screen of the inspection item displayed on the display part which concerns on 1st Embodiment. The figure which shows the reaction container used for the analysis of the test item which concerns on 1st Embodiment, and preparation of a diluted sample, and the timing which discharges a test sample, a diluent, a 1st reagent, and a 2nd reagent to this reaction container. The figure which shows the reaction container used for the reexamination of the inspection item which concerns on 1st Embodiment, and the timing which discharges a diluted sample, a 1st reagent, and a 2nd reagent to this reaction container. The block diagram which shows the structure of the automatic analyzer which concerns on 2nd Embodiment. The figure for demonstrating the structure of the analysis part which concerns on 2nd Embodiment. The configuration of the cleaning nozzle according to the second embodiment, the reaction container used for analysis of the inspection items and the diluted sample preparation, and the timing at which the test sample, the diluent, the first reagent, and the second reagent are discharged into the reaction container. FIG. The figure which shows the reaction container used for the reexamination of the inspection item which concerns on 2nd Embodiment, and the timing which discharges a diluted sample, a 1st reagent, and a 2nd reagent to this reaction container. The block diagram which shows the structure of the automatic analyzer which concerns on 3rd Embodiment. The figure which shows the reaction container used for the analysis of the test item which concerns on 3rd Embodiment, and preparation of a diluted sample, and the timing which discharges a test sample, a diluent, a 1st reagent, and a 2nd reagent to this reaction container. The figure which shows the reaction container used for the analysis of the test item which concerns on 3rd Embodiment, and preparation of a diluted sample, and the timing which discharges a test sample, a diluent, a 1st reagent, and a 2nd reagent to this reaction container. The figure which shows the reaction container used for the reexamination of the inspection item which concerns on 3rd Embodiment, and the timing which discharges a diluted sample, a 1st reagent, and a 2nd reagent to this reaction container.

  Hereinafter, embodiments will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing the configuration of the automatic analyzer according to the first embodiment. The automatic analyzer 100 includes an analysis unit 10 that generates a standard data and test data by measuring a mixed solution of a standard sample or test sample for each test item and an analysis reagent for each test item, and an analysis unit. An analysis control unit 50 for driving and controlling each analysis unit related to 10 measurements, a data processing unit 60 for processing standard data and test data generated by the analysis unit 10 to generate calibration data and analysis data, and It has.

  Further, the automatic analyzer 100 includes an output unit 70 that prints out and displays the calibration data and analysis data generated by the data processing unit 60, and an operation unit that performs input for setting analysis parameters of each inspection item. 80, and a system control unit 90 that controls the analysis control unit 50, the data processing unit 60, and the output unit 70 in an integrated manner.

  FIG. 2 is a perspective view showing the configuration of the analysis unit 10. The analysis unit 10 includes a sample container 11 for storing each sample such as a standard sample and a test sample, and a sample table 12 for holding the sample container 11 so as to be movable. Also, a reagent containing a diluent for preparing a diluted sample by diluting the first reagent, the second reagent system, the second reagent system, the second reagent, and the test sample for analysis of each test item, for example A container 13, a reagent storage 15 for keeping the first reagent in the reagent container 13, a reagent storage 16 for keeping the second reagent in the reagent container 13, and reagent storages 15 and 16 for holding the reagent container 13 movably. And two reagent racks 14 disposed therein. In addition, a reaction table 18 that holds, for example, 165 reaction vessels 17 arranged in a line at equal intervals on the circumference so as to be rotatable in one direction is provided.

  In addition, the sample dispensing probe 19 for dispensing the sample in the sample container 11 held on the sample table 12 and sucking it into the reaction container 17, and the sample dispensing probe 19 can be rotated and moved up and down. And a sample dispensing arm 20 to be held in the chamber. In addition, a first reagent dispensing probe 21 for aspirating the first reagent or diluent in the reagent container 13 held in the reagent rack 14 and dispensing it into the reaction container 17 from which the sample has been discharged; A first reagent dispensing arm 22 that holds the one reagent dispensing probe 21 so as to be capable of rotating and vertically moving is provided.

  Also, a first stirrer 23 that stirs the mixed solution of the sample and the first reagent discharged into the reaction container 17, and a first stirrer arm 24 that holds the first stirrer 23 so as to be able to rotate and move up and down. It has. In addition, a second reagent dispensing probe 25 for aspirating the second reagent in the reagent container 13 held in the reagent rack 14 and dispensing it into the reaction container 17 from which the first reagent has been discharged; A second reagent dispensing arm 26 that holds the reagent dispensing probe 25 so as to be capable of rotating and vertically moving is provided.

  Also, a second stirrer 27 that stirs the sample in the reaction vessel 17 and the mixed solution of the first and second reagents, and a second stirrer arm 28 that holds the second stirrer 27 so as to be able to rotate and move up and down. , A measurement unit 29 that optically measures the liquid mixture in the reaction container 17 by irradiating light, and a cleaning nozzle 30 that cleans the reaction container 17 that has been measured by the measurement unit 29.

  Then, the measurement unit 29 irradiates the reaction container 17 with light and detects, for example, absorbance data or absorbance data based on a detection signal that detects light that has passed through the liquid mixture including the standard sample and the test sample in the reaction container 17. Standard data and test data expressed by the amount of change are generated. Then, the generated standard data and test data are output to the data processing unit 60.

  The analysis control unit 50 shown in FIG. 1 includes a mechanism unit 51 having a mechanism for driving each analysis unit of the analysis unit 10, each pump, a mechanism for driving the pump, and the like. Further, a mechanism control unit 52 that controls each mechanism of the mechanism unit 51, the measurement unit 29 of the analysis unit 10 and the like based on the analysis parameters of each inspection item is provided.

  The mechanism unit 51 drives the sample table 12 to move the sample container 11. Each reagent rack 14 is driven to rotate the reagent container 13. Further, the reaction table 18 is driven to rotate the reaction vessel 17. Further, the sample dispensing arm 20, the first reagent dispensing arm 22, the second reagent dispensing arm 26, the first stirring arm 24, and the second stirring arm 28 are respectively rotated and driven up and down to sample dispensing. The probe 19, the first reagent dispensing probe 21, the second reagent dispensing probe 25, the first stirring bar 23, and the second stirring bar 27 are rotated and moved up and down, respectively. Further, the cleaning nozzle 30 is moved up and down.

  Moreover, the mechanism part 51 drives each pump. Then, the sample dispensing probe 19 is caused to suck and discharge the sample. Further, the first reagent dispensing probe 21 is caused to suck and discharge the first reagent and diluent. Further, the second reagent dispensing probe 25 is caused to suck and discharge the second reagent. Further, the cleaning nozzle 30 is caused to perform cleaning such as suction of the mixed liquid in the reaction container 17 and discharge and suction of cleaning liquid for cleaning the reaction container 17. Further, the first stirring bar 23 is driven to stir the mixed solution in the reaction vessel 17. Further, the second stirring bar 27 is driven to stir the liquid mixture in the reaction vessel 17.

  The data processing unit 60 generates the calibration data and analysis data of each inspection item by processing the standard data and the test data output from the measurement unit 29 of the analysis unit 10, and the calculation unit 61 generates the data. And a data storage unit 62 for storing standard data and analysis data.

  The calculation unit 61 generates calibration data indicating the relationship between the standard data output from the measurement unit 29 and standard values preset in the standard sample of the standard data, and outputs the generated calibration data to the output unit 70. The data is stored in the data storage unit 62.

  In addition, the calibration data of the test item corresponding to the test data output from the measurement unit 29 is read from the data storage unit 62, and expressed by the concentration value and the enzyme activity value from the test data using the read calibration data. Generate analytical data. The generated analysis data is output to the output unit 70 and stored in the data storage unit 62.

  The data storage unit 62 includes a memory device such as a hard disk, and stores calibration data output from the calculation unit 61 for each inspection item. In addition, the analysis data of each inspection item output from the calculation unit 61 is stored for each test sample.

  The output unit 70 includes a printing unit 71 that prints out the calibration data and analysis data output from the calculation unit 61 of the data processing unit 60 and a display unit 72 that displays the output. The printing unit 71 includes a printer or the like, and prints the calibration data and analysis data output from the calculation unit 61 on printer paper or the like according to a preset format.

  The display unit 72 includes a monitor such as a CRT or a liquid crystal panel, and displays calibration data and analysis data output from the calculation unit 61. Also, an analysis parameter setting screen for setting analysis parameters for each inspection item, setting of test identification information such as name and ID for identifying the test sample for each test sample, and setting of inspection items necessary for the test To display the inspection item setting screen and so on.

  The operation unit 80 includes input devices such as a keyboard, a mouse, a button, and a touch key panel. The operation unit 80 is used to set an analysis parameter for each test item, test identification information of a test sample, and test items. Perform input etc.

  The system control unit 90 includes a CPU and a storage circuit, and stores input information such as a command signal input by an operation from the operation unit 80, analysis parameter information of each inspection item, test identification information, and inspection item information. After being stored in the circuit, the analysis control unit 50, the data processing unit 60, and the output unit 70 are controlled based on the input information to control the entire system.

Next, an example of the operation of each analysis unit of the analysis unit 10 will be described with reference to FIGS.
FIG. 3 is a view showing each stop position of each reaction vessel 17 and the position of the measurement unit 29 held in the reaction table 18 of the analysis unit 10. The reaction table 18 is rotationally driven by the mechanism unit 51. Each reaction vessel 17 rotates and moves in one direction every cycle time and is different from the cleaning position W, sample discharge position Pa, first reagent discharge position Pb, first stirring position Pc, and diluted sample suction. It stops at each stop position including the position Pf, the second reagent discharge position Pd, and the second stirring position Pe. And it stops at the same stop position every round time which is longer than one cycle time.

  Here, each reaction vessel 17 is rotationally moved in the direction of arrow R1 every cycle time by rotational driving of the reaction table 18 at an angle θ, and is positioned at an angle of 90 °, for example, in the R1 direction from the position before the movement. It stops at the position of the reaction vessel 17 adjacent to the reaction vessel 17 in the direction opposite to the R1 direction.

  The measurement unit 29 is arranged across the inner and outer peripheries of each reaction vessel 17 and irradiates each reaction vessel 17 passing through the measurement position Pm with each rotation of the reaction table 18. And the light which permeate | transmitted the liquid mixture in each reaction container 17 is detected, and light absorbency data are produced | generated.

FIG. 4 is a diagram showing the configuration of the cleaning nozzle 30 and the respective stop positions of the reaction vessels 17.
The cleaning nozzle 30 includes, for example, seven first to seventh cleaning nozzles 31 to 37. The first to seventh cleaning nozzles 31 to 37 are arranged so as to be independently movable in the vertical direction at the first to seventh cleaning positions W1 to W7 of the cleaning position W by the vertical drive of the mechanism unit 51.

  Each of the first to seventh cleaning nozzles 31 to 37 is stopped at the upper stop position above the reaction table 18 while the reaction table 18 is rotating. Then, when the reaction table 18 is stopped and the reaction container 17 to be cleaned is stopped at each of the first to seventh cleaning positions W1 to W7, the reaction table 18 moves downward to enter the reaction container 17, and the lower end is Washing is performed by stopping at a lower stop position close to the bottom surface in the reaction vessel 17. After finishing the cleaning, it moves upward and stops at the upper stop position.

  The first washing nozzle 31 contains a diluted sample that does not undergo re-examination when the reaction container 17 that contains the mixed liquid that has become unnecessary after the measurement is stopped at the first washing position W1. When the container 17 is stopped at the first cleaning position W1, it moves downward and stops at the lower stop position. Then, washing is performed by sucking the mixed solution or diluted sample in the reaction container 17. Further, when the reaction container 17 containing the diluted sample to be re-inspected is stopped at the first cleaning position W1, the cleaning is stopped at the upper stop position.

  When the reaction vessel 17 cleaned at the first cleaning position W1 is stopped at the second cleaning position W2, the second cleaning nozzle 32 moves downward and stops at the lower stop position. Then, cleaning is performed by discharging a first cleaning liquid such as an alkaline cleaning liquid and suctioning the discharged first cleaning liquid in order to wash out the mixed liquid remaining in the reaction vessel 17. Further, when the reaction vessel 17 whose cleaning is stopped at the first cleaning position W1 is stopped at the second cleaning position W2, the cleaning is stopped at the upper stop position.

  The third cleaning nozzle 33 moves downward and stops at the lower stop position when the reaction vessel 17 cleaned at the second cleaning position W2 is stopped at the third cleaning position W3. Then, cleaning is performed by discharging a second cleaning liquid such as an acidic cleaning liquid and suctioning the discharged second cleaning liquid in order to wash out the mixed liquid that cannot be removed by the first cleaning liquid in the reaction vessel 17. Further, when the reaction vessel 17 that has been washed at the second washing position W2 is stopped at the third washing position W3, the washing is stopped at the upper stop position.

  The fourth cleaning nozzle 34 moves downward and stops at the lower stop position when the reaction vessel 17 cleaned at the third cleaning position W3 is stopped at the fourth cleaning position W4. Then, cleaning is performed by discharging cleaning water that is a cleaning liquid for washing off the second cleaning liquid in the reaction vessel 17 and suction of the discharged cleaning water. Further, when the reaction vessel 17 that has been washed at the third washing position W3 is stopped at the fourth washing position W4, the washing is stopped at the upper stop position.

  The fifth cleaning nozzle 35 moves downward and stops at the lower stop position when the reaction vessel 17 cleaned at the fourth cleaning position W4 is stopped at the fifth cleaning position W5. Then, cleaning is performed by discharging the cleaning water in the reaction vessel 17 and suctioning the discharged cleaning water. Further, when the reaction vessel 17 whose washing is stopped at the fourth washing position W4 is stopped at the fifth washing position W5, the washing is stopped at the upper stop position.

  The sixth cleaning nozzle 36 moves downward and stops at the lower stop position when the reaction vessel 17 cleaned at the fifth cleaning position W5 is stopped at the sixth cleaning position W6. Then, cleaning is performed by suction of the cleaning water remaining in the reaction vessel 17. Further, when the reaction vessel 17 that has been washed at the fifth washing position W5 is stopped at the sixth washing position W6, the washing is stopped at the upper stop position.

  The seventh cleaning nozzle 37 moves downward and stops at the lower stop position when the reaction vessel 17 cleaned at the sixth cleaning position W6 is stopped at the seventh cleaning position W7. Then, the cleaning water remaining in the reaction vessel 17 is cleaned by further suction. Further, when the reaction vessel 17 that has been washed at the sixth washing position W6 is stopped at the seventh washing position W7, the washing is stopped at the upper stop position.

  Hereinafter, an example of the operation of the automatic analyzer 100 according to the first embodiment will be described with reference to FIGS. 1 to 7. An operation for analyzing the inspection item A to be re-inspected when the analysis data is higher than a preset upper limit value will be described. When an input for setting the analysis parameter of the inspection item A is performed from the operation unit 80, an analysis parameter setting screen is displayed on the display unit 72 of the output unit 70.

  FIG. 5 is a diagram illustrating an example of an analysis parameter setting screen for the inspection item A displayed on the display unit 72. The analysis parameter setting screen 73 has an “item” column for setting the item name of the inspection item A, a “sample parameter” column for setting the sample parameter, and a “sample” parameter for setting the reinspection parameter. The column includes a “retest parameter” column, a “reagent parameter” column for setting a reagent parameter, and the like. The analysis parameters set by the input from the operation unit 80 are displayed in each column.

  In the “item” column, “A” which is the item name of the inspection item A is displayed. The “sample parameter” column is composed of a “sample amount (μL)” column for setting the amount of the sample to be analyzed to be discharged into the reaction vessel 17, and the analysis to be discharged into the reaction vessel 17. “5” indicating that the amount of the test sample for use is 5 μL is displayed.

  In the “retest parameter” column, a “diluted specimen amount (μL)” column for setting the amount of a test sample for retesting discharged to the reaction container 17 in order to prepare a diluted sample, and a diluted sample A column of “dilution volume (μL)” for setting the amount of dilution liquid for reexamination discharged to the reaction container 17 for preparation, and a parameter for determining whether or not to execute reinspection are set. And an “upper limit value” field.

  In the “diluted sample amount (μL)” column, “10” indicating that the amount of the test sample for retesting discharged to the reaction container 17 is 10 μL is displayed. In the “dilution liquid amount (μL)” column, “90” indicating that the amount of the dilution liquid for retesting discharged to the reaction container 17 is 90 μL is displayed. In the “upper limit value” column, “1000” indicating that re-inspection is executed when the analysis data of the inspection item A exceeds 1000 is displayed.

  In this way, by setting the reinspection parameter in the “reexamination parameter” column, the reinspection can be executed when the analysis data of the inspection item A exceeds the set upper limit value. If any of the “diluted sample volume (μL)”, “diluted solution volume (μL)”, or “upper limit” fields is not set and is blank, retesting is performed. It cannot be executed.

  The “reagent parameter” column includes a “reagent” column for setting the first reagent and the second reagent, and a “reagent name” for setting a reagent name for identifying the first reagent and the second reagent, for example. And a “reagent amount (μL)” column for setting the amount of reagent to be discharged to the reaction container 17.

  In the “reagent” column, “R1” indicating that the reagent of the test item A includes the first and second reagents of the two-reagent system and is the first reagent to be dispensed first, and the first reagent is dispensed. “R2” indicating that the second reagent is dispensed after being poured is displayed. In the “reagent name” column, “A1” and “A2” indicating that the reagent names of the first and second reagents used in the analysis of the test item A are A1 and A2 are displayed. In addition, “100” indicating that the amount of the first reagent discharged to the reaction container 17 is 100 μL is displayed in the “reagent amount (μL)”, and “the amount of the second reagent is 50 μL”. 50 "is displayed.

  After the sample container 11 that holds the test sample B in which the test item A is set is held on the sample table 12, when the measurement start is input from the operation unit 80, the automatic analyzer 100 starts its operation. The system control unit 90 instructs the analysis control unit 50 to perform an inspection based on the analysis parameter of the inspection item A input from the operation unit 80. The mechanism control unit 52 of the analysis control unit 50 determines the reaction container 17 used for the analysis of the inspection item A based on the analysis parameter of the inspection item A. And the mechanism part 51 is controlled and each operation | movement of dispensing of a sample and a reagent, stirring of a liquid mixture, and washing | cleaning is performed in each stop position where the determined reaction container 17 stops.

  FIG. 6 is a diagram showing the reaction container 17 used for the analysis of the test item A and the preparation of the diluted sample, and the timing at which the test sample B, the diluent, the first reagent, and the second reagent are discharged into the reaction container 17. It is.

  Each reaction vessel 17 starts from the position when the seventh cleaning nozzle 37 of the cleaning nozzle 30 is stopped at the upper stop position and the cleaning is finished and stopped at the seventh cleaning position W7. A stop is made at each stop position as the first round until it stops at the same position as the start position after the round time.

  In the first cycle of the first round, the reaction container 17 at the seventh cleaning position W7 is determined as the reaction container 17 used for the analysis of the inspection item A, and is rotated from the seventh cleaning position W7 by the rotation of the angle θ of the reaction table 18. Stop at the specified position. Further, the reaction container 17 that stops at the seventh washing position W7 is determined as the reaction container 17 used for preparing the diluted sample of the inspection item A.

  In the second cycle after one cycle time has elapsed from the first cycle, the reaction container 17 for analysis of the inspection item A stops at the sample discharge position Pa. Then, the sample dispensing probe 19 sucks the test sample B for analysis of the test item A from the sample container 11 held on the sample table 12, and discharges 5 μL into the reaction container 17 at the sample discharge position Pa.

  In the third cycle in which one cycle time has elapsed from the second cycle, the reaction container 17 in which the test sample B is discharged at the sample discharge position Pa in the second cycle stops at the first reagent discharge position Pb. Then, the first reagent dispensing probe 21 sucks the first reagent for analysis of the test item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 15, and the reaction container at the first reagent discharge position Pb. 100 μL is discharged into the tube 17. In addition, the reaction container 17 determined for preparing the diluted sample of the inspection item A in the first cycle is stopped for the first time at the sample discharge position Pa after being cleaned. The sample dispensing probe 19 sucks the test sample B for retesting of the inspection item A from the sample container 11 held on the sample table 12, and discharges 10 μL into the reaction container 17 at the sample discharge position Pa. .

  Thus, by setting the reexamination parameters, the test for preparing a diluted sample necessary for the reexamination in parallel with the operation for analyzing the test item A set for the test sample B Sample B can be dispensed.

  In the fourth cycle when one cycle time has elapsed from the third cycle, the reaction vessel 17 in which the test sample B for retesting is discharged at the sample discharge position Pa in the third cycle is discharged after the first reagent is washed. Stop at position Pb for the first time. Then, the first reagent dispensing probe 21 sucks the reinspection dilution liquid of the inspection item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 15 and reacts at the first reagent discharge position Pb. 90 μL is discharged into the container 17.

  Thus, by setting the reinspection parameter, it is possible to dispense a diluent for preparing a diluted sample required for the reinspection in parallel with the operation for analyzing the inspection item A.

  In the fifth cycle when one cycle time has elapsed from the fourth cycle, the reaction vessel 17 in which the first reagent has been discharged at the first reagent discharge position Pb in the third cycle stops at the first stirring position Pc. And the 1st stirring element 23 stirs the liquid mixture of the test sample B and the 1st reagent in the reaction container 17 of the 1st stirring position Pc.

  In the sixth cycle after one cycle time has elapsed from the fifth cycle, the reaction vessel 17 that has been stirred at the first stirring position Pc in the fifth cycle stops at the diluted sample suction position Pf. In addition, the reaction container 17 in which the diluent for retesting is discharged at the first reagent discharge position Pb in the fourth cycle is stopped for the first time at the first stirring position Pc after being cleaned. The first stirrer 23 stirs the diluted sample obtained by diluting the test sample B with the diluent in the reaction container 17 at the first stirring position Pc.

  In the d-th cycle after a predetermined cycle time has elapsed from the sixth cycle, the reaction vessel 17 that has been stirred at the first stirring position Pc in the fifth cycle stops at the second reagent discharge position Pd. Then, the second reagent dispensing probe 25 sucks the second reagent for analysis of the test item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 16, and the reaction container at the second reagent discharge position Pd. 50 μL is discharged into the tube 17.

  In the (d + 1) cycle when one cycle time elapses from the d cycle, the reaction container 17 in which the second reagent is discharged at the second reagent discharge position Pd in the d cycle stops at the second stirring position Pe. And the 2nd stirring element 27 stirs the test liquid B in the reaction container 17 of the 2nd stirring position Pe, and the liquid mixture of a 1st reagent and a 2nd reagent. In addition, the reaction vessel 17 that has been stirred at the first stirring position Pc in the sixth cycle stops for the first time at the second reagent discharge position Pd after being cleaned. Then, the second reagent dispensing probe 25 stops the discharge of the second reagent to the reaction container 17 at the second reagent discharge position Pd.

  The measurement unit 29 mixes the liquid in the reaction container 17 for analysis of the inspection item A that passes through the measurement position Pm after it stops at the second stirring position Pe in the (d + 1) cycle until it stops at the cleaning position W. To generate absorbance data. Then, the calculation unit 61 of the data processing unit 60 generates analysis data of the inspection item A based on the absorbance data generated by the measurement unit 29. The system control unit 90 determines whether or not to re-inspect the inspection item A based on the analysis data of the inspection item A generated by the calculation unit 61. If the analysis data of the inspection item A exceeds 1000 which is the upper limit value, the analysis control unit 50 is instructed to re-inspect the inspection item A. If the analysis data is 1000 or less, the analysis control unit 50 is instructed to end the analysis of the inspection item A.

  As described above, by setting the upper limit value as the reinspection parameter, it is possible to determine whether reinspection is necessary based on the analysis data generated by the operation for analyzing the inspection item A.

  The reaction vessel 17 that has been stirred at the second stirring position Pe in the (d + 1) cycle stops at the first cleaning position W1 in the g cycle, as shown in FIG. Then, the first cleaning nozzle 31 cleans the reaction container 17 at the first cleaning position W1 for which measurement has been completed by the analysis control unit 50.

  In the (g + 1) cycle after the first cycle time has elapsed since the g cycle, the reaction vessel 17 for preparing a diluted sample that has been stirred in the sixth cycle is the first time at the first washing position W1 after washing. Stop. Then, when the analysis data of the inspection item A exceeds 1000, the first cleaning nozzle 31 stops the cleaning of the reaction container 17 at the first cleaning position W1 in order to use the diluted sample for the re-inspection. Further, when the analysis data of the inspection item A is 1000 or less, since the reinspection is unnecessary, the reaction container 17 at the first cleaning position W1 is cleaned.

  In the (g + 4) cycle when four cycle times have elapsed from the g cycle, the reaction vessel 17 that was cleaned at the first cleaning position W1 at the g cycle stops at the second cleaning position W2. The second cleaning nozzle 32 cleans the reaction container 17 at the second cleaning position W2.

  In the (g + 5) cycle when one cycle time has elapsed from the (g + 4) cycle, the reaction vessel 17 stopped at the first cleaning position W1 in the (g + 1) cycle stops at the second cleaning position W2. The second cleaning nozzle 32 stops cleaning when the reaction vessel 17 that has been cleaned at the first cleaning position W1 is stopped at the second cleaning position W2, and performs cleaning at the first cleaning position W1. Cleaning is performed when the broken reaction vessel 17 is stopped at the second cleaning position W2.

  (G + 4) cycle in (g + 8) cycle, (g + 12) cycle, (g + 16) cycle, (g + 20) cycle, and (g + 24) cycle that have elapsed from the (g + 4) cycle as a multiple of 4 cycle times The reaction container 17 that has been cleaned at the second cleaning position W2 is stopped at the third to seventh cleaning positions W3 to W7. The third to seventh cleaning nozzles 33 to 37 clean the reaction containers 17 at the third to seventh cleaning positions W3 to W7.

  (G + 5) cycle in (g + 9) cycle, (g + 13) cycle, (g + 17) cycle, (g + 21) cycle, and (g + 25) cycle that have elapsed from the (g + 5) cycle as a multiple of 4 cycle times The reaction vessel 17 stopped at the second cleaning position W2 is stopped at each of the third to seventh cleaning positions W3 to W7. Each of the third to seventh cleaning nozzles 33 to 37 performs cleaning when the reaction vessel 17 that has been stopped at the second cleaning position W2 is stopped at each of the third to seventh cleaning positions W3 to W7. When the reaction vessel 17 that has been stopped and cleaned at the second cleaning position W2 is stopped at the third to seventh cleaning positions W3 to W7, cleaning is performed.

  As described above, when the analysis data of the inspection item A exceeds the upper limit value by setting the reinspection parameter, the first time after the reaction container 17 containing the diluted sample prepared for reinspection is washed. When the cleaning is stopped at the cleaning position W, the cleaning can be stopped. Further, when the analysis data of the inspection item A is equal to or less than the upper limit value, the cleaning can be performed when the reaction container 17 containing the diluted sample that does not require re-inspection is stopped at the cleaning position W for the first time after cleaning. it can.

Hereinafter, an operation for reinspecting the inspection item A will be described.
After the end of the first round, the reaction container 17 that stores the diluted sample for the reexamination of the inspection item A is the seventh washing position when the seventh washing nozzle 37 is stopped at the upper stop position. Let W7 be the start position of the second round.

  FIG. 7 is a diagram showing the reaction container 17 used for re-inspection of the inspection item A, and the timing at which the diluted sample, the first reagent, and the second reagent are discharged into the reaction container 17.

  In the first cycle of the second round, the reaction vessel 17 for preparing the diluted sample of the inspection item A stops at the position rotated from the seventh cleaning position W7 by the rotation of the angle θ of the reaction table 18. Next, in the second cycle after one cycle time has elapsed from the first cycle, the cleaning is performed and then stopped at the sample discharge position Pa for the second time. Then, the sample dispensing probe 19 stops the discharge of the sample into the reaction container 17 at the sample discharge position Pa.

  In the third cycle after one cycle time has elapsed from the second cycle, the reaction container 17 stopped at the sample discharge position Pa in the second cycle stops for the second time at the first reagent discharge position Pb after being washed. Then, the first reagent dispensing probe 21 stops the discharge of the first reagent and the diluent to the reaction container 17 at the first reagent discharge position Pb.

  In the sixth cycle after the third cycle time has elapsed from the third cycle, the reaction vessel 17 stopped at the first reagent discharge position Pb in the third cycle is stopped at the second time at the diluted sample suction position Pf after being washed. Then, the sample dispensing probe 19 sucks the diluted sample from the reaction container 17 at the diluted sample suction position Pf, and is determined for re-inspection of the inspection item A that stops at the sample discharge position Pa after the cleaning is performed. 5 μL is discharged into the reaction vessel 17 thus prepared.

  As described above, when it is necessary to perform re-examination, the washing of the reaction container 17 containing the diluted sample is stopped, and the diluted sample is sucked from the reaction container 17 and discharged to the washed reaction container 17. can do.

  In the seventh cycle after one cycle time has elapsed from the sixth cycle, the reaction container 17 in which the diluted sample has been discharged in the sixth cycle stops at the first reagent discharge position Pb. Then, the first reagent dispensing probe 21 sucks the first reagent for analysis of the test item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 15, and the reaction container at the first reagent discharge position Pb. 100 μL is discharged into the tube 17.

  In the ninth cycle, in which two cycle times have elapsed since the seventh cycle, the reaction vessel 17 in which the first reagent has been discharged in the seventh cycle stops at the first stirring position Pc. And the 1st stirring element 23 stirs the liquid mixture of the diluted sample and the 1st reagent in the reaction container 17 of the 1st stirring position Pc.

  In the (d + 4) cycle when a predetermined cycle time has elapsed from the ninth cycle, the reaction vessel 17 that has been stirred at the first stirring position Pc in the ninth cycle stops at the second reagent discharge position Pd. Then, the second reagent dispensing probe 25 sucks the second reagent for analysis of the test item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 16, and the reaction container at the second reagent discharge position Pd. 50 μL is discharged into the tube 17.

  In the (d + 5) cycle when one cycle time has elapsed from the (d + 4) cycle, the reaction vessel 17 in which the second reagent has been discharged in the (d + 4) cycle stops at the second stirring position Pe. And the 2nd stirring element 27 stirs the liquid mixture of the diluted sample, the 1st reagent, and the 2nd reagent in the reaction container 17 of the 2nd stirring position Pe.

  The measuring unit 29 is a reaction container for reexamination of the inspection item A that passes through the measurement position Pm after stirring at the second stirring position Pe in the (d + 5) cycle until it stops at the first cleaning position W1. The liquid mixture in 17 is measured to generate absorbance data. Then, the calculation unit 61 generates analysis data for the inspection item A based on the absorbance data generated by the measurement unit 29. The output unit 70 outputs the analysis data of the inspection item A generated by the calculation unit 61.

  Thus, reinspection can be performed using the diluted sample for inspection item A reinspection prepared in parallel with the operation for analyzing inspection item A. Thereby, it is possible to reduce the burden on the operator and perform a re-examination quickly.

  The cleaning nozzle 30 cleans the reaction container 17 in which the diluted sample is sucked at the diluted sample suction position Pf in the sixth cycle of the second round that stops at the cleaning position W for the second time after the cleaning is performed. Further, the reaction container 17 for inspection item A re-inspection that stops at the cleaning position W is cleaned. Then, the analysis of the test item A set for the test sample B is completed, and the system control unit 90 instructs the analysis control unit 50 to end the measurement, whereby the automatic analyzer 100 ends the operation.

  According to the first embodiment described above, by setting the reinspection parameter, the preparation of the diluted sample required for the reinspection of the inspection item A is performed in parallel with the operation for analyzing the inspection item A. It can be carried out. If the analysis data of the inspection item A exceeds the upper limit value, the washing can be stopped when the reaction container 17 containing the prepared diluted sample is washed at the washing position W for the first time after washing. . Further, when the analysis data of the inspection item A is equal to or less than the upper limit value, the cleaning can be performed when the reaction container 17 containing the unnecessary diluted sample is stopped at the cleaning position W for the first time after cleaning. Furthermore, the diluted sample can be sucked from the reaction vessel 17 that has been washed and discharged into the reaction vessel 17 that has been washed, so that reinspection can be performed.

  As a result, it is possible to reduce the burden on the operator and perform re-examination quickly.

(Second Embodiment)
FIG. 8 is a block diagram showing the configuration of the automatic analyzer according to the second embodiment. In this automatic analyzer 100a, units having the same configuration and the same function as each unit of the automatic analyzer 100 according to the first embodiment shown in FIG. .

  The automatic analyzer 100a according to the second embodiment is different from the automatic analyzer 100 according to the first embodiment in that the analyzer 10 and the analysis controller 50 in FIG. 1 are replaced with the analyzer 10a and the analysis controller 50a. This is the point of replacement.

  FIG. 9 is a diagram for explaining the configuration of the analysis unit 10a according to the second embodiment. The analysis unit 10a differs from the analysis unit 10 in that a diluted sample dispensing probe 40 that dispenses a diluted sample in a retest and a diluted sample portion that holds the diluted sample dispensing probe 40 so that the diluted sample dispensing probe 40 can be rotated and moved up and down. This is the point where the note arm 41 is additionally arranged. Further, the cleaning nozzle 30 of the analysis unit 10 shown in FIG. 3 is replaced with a cleaning nozzle 30a. Further, the diluted sample suction position Pf and the sample discharge position Pa that perform the suction and discharge of the diluted sample shown in FIG. 3 are the diluted sample suction position that is a stop position adjacent to the first cleaning position W1 of the cleaning position W in the R1 direction. This is a point replaced with a diluted sample discharge position Paa which is a stop position adjacent to Pfa and the first stirring position Pc in the R1 direction.

  The diluted sample dispensing probe 40 moves along a circular orbit indicated by a broken line, and sucks the diluted sample in the reaction vessel 17 stopped at the diluted sample suction position Pfa. Then, the sucked diluted sample is discharged into the reaction container 17 stopped at the diluted sample discharge position Paa.

  FIG. 10 shows the configuration of the washing nozzle 30a, the reaction container 17 used for the analysis of the inspection item A and the preparation of the diluted sample, and the timing at which the test sample, the diluent, the first reagent, and the second reagent are discharged into the reaction container 17. FIG. The cleaning nozzle 30a includes first to seventh cleaning nozzles 31a to 37a, and the first to seventh cleaning nozzles 31a to 37a are fixed to one support. The first to seventh cleaning nozzles 31a to 37a are arranged to be movable in the vertical direction at the same timing by the vertical drive of the support by the mechanism 51a.

  Each of the first to seventh cleaning nozzles 31a to 37a is stopped at the upper stop position above the reaction table 18 while the reaction table 18 is rotating. When the reaction table 18 stops, the reaction table 18 moves downward at the same timing and enters the reaction container 17 at each of the first to seventh cleaning positions W1 to W7, and the lower end is close to the bottom surface in the reaction container 17. Stop at the stop position and wash at the same time. After the cleaning is finished, it moves upward at the same timing and stops at the upper stop position.

  The first cleaning nozzle 31a cleans the reaction vessel 17 stopped at the first cleaning position W1 in the same manner as the first cleaning nozzle 31 shown in FIG. The second cleaning nozzle 32a cleans the reaction vessel 17 stopped at the second cleaning position W2 in the same manner as the second cleaning nozzle 32. The third cleaning nozzle 33a cleans the reaction vessel 17 stopped at the third cleaning position W3 in the same manner as the third cleaning nozzle 33. Further, the fourth cleaning nozzle 34a cleans the reaction vessel 17 stopped at the fourth cleaning position W4 in the same manner as the fourth cleaning nozzle 34. The fifth cleaning nozzle 35a cleans the reaction vessel 17 stopped at the fifth cleaning position W5 in the same manner as the fifth cleaning nozzle 35. The sixth cleaning nozzle 36a cleans the reaction vessel 17 stopped at the sixth cleaning position W6 in the same manner as the sixth cleaning nozzle 36. The seventh cleaning nozzle 37a cleans the reaction vessel 17 stopped at the seventh cleaning position W7 in the same manner as the seventh cleaning nozzle 37.

  The analysis control unit 50a illustrated in FIG. 9 includes a mechanism unit 51a and a mechanism control unit 52a that controls the mechanism unit 51a. The mechanism 51a differs from the mechanism 51 shown in FIG. 1 in that the diluted sample dispensing arm 41 of the analyzer 10a is rotated and driven up and down, and the diluted sample dispensing probe 40 is supplied with a diluted sample. This is that a pump for performing suction and discharge is additionally arranged, and a mechanism for driving the cleaning nozzle 30 of the mechanism unit 51 up and down is replaced with a mechanism for driving the cleaning nozzle 30a up and down.

  The mechanism control unit 52a is different from the mechanism control unit 52 shown in FIG. 1 in that a mechanism for driving the sample dispensing arm 20 of the analysis unit 10 for dispensing the diluted sample and the sample dispensing probe 19 are configured to supply the diluted sample. The control of the pump that performs suction and discharge is replaced with the mechanism that drives the diluted sample dispensing arm 41 and the control of the pump that causes the diluted sample dispensing probe 40 to suck and discharge the diluted sample. Further, the control of the mechanism that drives the cleaning nozzle 30 up and down in the mechanism control unit 52 is replaced with the control of the mechanism that drives the cleaning nozzle 30a up and down.

  Hereinafter, an example of the operation of the automatic analyzer 100a according to the second embodiment will be described with reference to FIGS.

  After the sample container 11 that holds the test sample B in which the test item A is set is held on the sample table 12, when the measurement start is input from the operation unit 80, the automatic analyzer 100a starts its operation. The system control unit 90 instructs the analysis control unit 50a to perform measurement based on the analysis parameter of the inspection item A input from the operation unit 80. The mechanism control unit 52a of the analysis control unit 50a determines the reaction container 17 used for the analysis of the inspection item A based on the analysis parameter of the inspection item A. And the mechanism part 51a is controlled and each operation | movement of dispensing of a sample and a reagent, stirring of liquid mixture, and washing | cleaning is performed in each stop position where the determined reaction container 17 stops.

  In FIG. 10, each reaction vessel 17 has the position when the cleaning nozzle 30 a is stopped at the upper stop position and the position when the cleaning is finished and stopped at the seventh cleaning position W <b> 7 of the cleaning position W as the start position. To do.

  In the first cycle, the reaction container 17 at the seventh washing position W7 is determined as the reaction container 17 used for the analysis of the inspection item A, and the diluted sample discharge position moved from the seventh washing position W7 by the rotation of the angle θ of the reaction table 18 Stop at Paa. Further, the reaction container 17 that stops at the seventh washing position W7 is determined as the reaction container 17 used for preparing the diluted sample of the inspection item A.

  In the second cycle, the reaction container 17 for analysis of the inspection item A stops at the sample discharge position Pa. Then, the sample dispensing probe 19 discharges 5 μL of the test sample B for analysis of the inspection item A into the reaction container 17 at the sample discharge position Pa. Further, the reaction container 17 determined for preparing the diluted sample of the inspection item A in the first cycle stops at the diluted sample discharge position Paa.

  The third cycle to the (d + 1) th cycle operate in the same manner as the third cycle to the (d + 1) th cycle in the first round described in the first embodiment described in FIG.

  In the g-th cycle, the reaction vessel 17 that has been stirred at the second stirring position Pe in the (d + 1) cycle stops at the first cleaning position W1. Then, the first cleaning nozzle 31a cleans the reaction container 17 at the first cleaning position W1.

  Further, in the g-th cycle, the reaction container 17 that has been stirred at the first stirring position Pc in the sixth cycle stops at the diluted sample suction position Pfa. When the analysis data of the inspection item A exceeds 1000, the diluted sample dispensing probe 40 sucks the diluted sample in the reaction container 17 at the diluted sample suction position Pfa and discharges the diluted sample after cleaning is performed. 5 μL of the diluted sample is discharged into the reaction vessel 17 stopped at the position Paa. Further, when the analysis data of the inspection item A is 1000 or less, the diluted sample dispensing probe 40 stops dispensing the diluted sample.

  As described above, when the analysis data of the inspection item A exceeds the upper limit value, the cleaning is performed by sucking the diluted sample from the reaction container 17 before the reaction container 17 containing the diluted sample is cleaned. Can be discharged into the reaction vessel 17. In addition, when the analysis data of the inspection item A is equal to or lower than the upper limit value, the dispensing of the diluted sample can be stopped.

  The cleaning nozzle 30a has the inspection item A that stops at the first to seventh cleaning positions W1 to W7 in the g, (g + 4), (g + 8), (g + 12), (g + 16), (g + 20), and (g + 24) cycles. The first to seventh washing positions W1 to W7 in the reaction vessel 17 used for the analysis and the (g + 1), (g + 5), (g + 9), (g + 13), (g + 17), (g + 21), and (g + 25) cycles. The reaction container 17 for preparing the diluted sample of the inspection item A that is stopped in step 1 is washed.

  FIG. 11 is a diagram showing the reaction container 17 used for re-inspection of the inspection item A, and the timing at which the diluted sample, the first reagent, and the second reagent are discharged into the reaction container 17.

  In the (g + 1) th cycle, the reaction container 17 in which the diluted sample is discharged at the diluted sample discharge position Paa in the g cycle stops at the sample discharge position Pa. Then, the sample dispensing probe 19 stops the discharge of the sample into the reaction container 17 in which the diluted sample at the sample discharge position Pa is accommodated.

  In the (g + 2) cycle, the reaction vessel 17 stopped at the sample discharge position Pa in the (g + 1) cycle stops at the first reagent discharge position Pb. Then, the first reagent dispensing probe 21 sucks the first reagent for analysis of the test item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 15, and the reaction container at the first reagent discharge position Pb. 100 μL is discharged into the tube 17.

  In the (g + 4) cycle, the reaction vessel 17 in which the first reagent has been discharged in the (g + 2) cycle stops at the first stirring position Pc. And the 1st stirring element 23 stirs the liquid mixture of the diluted sample and the 1st reagent in the reaction container 17 of the 1st stirring position Pc.

In the (g + d-1) cycle when a predetermined cycle time has elapsed from the (g + 4) cycle, the reaction vessel 17 that has been stirred at the first stirring position Pc in the (g + 4) cycle is at the second reagent discharge position Pd. Stop. Then, the second reagent dispensing probe 25 sucks the second reagent for analysis of the test item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 16, and the reaction container at the second reagent discharge position Pd. 50 μL is discharged into the tube 17.

  In the (g + d) cycle, the reaction container 17 in which the second reagent is discharged at the second reagent discharge position Pd in the (g + d-1) cycle stops at the second stirring position Pe. And the 2nd stirring element 27 stirs the liquid mixture of the diluted sample, the 1st reagent, and the 2nd reagent in the reaction container 17 of the 2nd stirring position Pe.

  The measuring unit 29 is in the reaction container 17 for retesting the inspection item A that passes through the measurement position Pm after stirring at the second stirring position Pe in the (g + d) cycle until it stops at the cleaning position W. Absorbance data is generated by measuring the mixed solution. Then, the calculation unit 61 generates analysis data for the inspection item A based on the absorbance data generated by the measurement unit 29. The output unit 70 outputs the analysis data of the inspection item A generated by the calculation unit 61.

  Thus, reinspection can be performed using the diluted sample for inspection item A reinspection prepared in parallel with the operation for analyzing inspection item A. As a result, it is possible to reduce the burden on the operator and perform re-examination quickly.

  The cleaning nozzle 30a cleans the reaction container 17 for the inspection item A re-inspection that ends the re-inspection and stops at the cleaning position W. Then, the analysis of the test item A set for the test sample B is completed, and the system control unit 90 instructs the analysis control unit 50a to end the measurement, whereby the automatic analyzer 100a ends the operation.

  According to the second embodiment described above, by setting the reinspection parameter, the preparation of the diluted sample required for the reinspection of the inspection item A is performed in parallel with the operation for analyzing the inspection item A. It can be carried out. When the analysis data of the inspection item A exceeds the upper limit value, the reaction in which the diluted sample is sucked from the reaction container 17 and cleaned before the reaction container 17 containing the diluted sample is cleaned. The container 17 can be discharged and reinspected.

  As a result, it is possible to reduce the burden on the operator and perform re-examination quickly.

(Third embodiment)
FIG. 12 is a block diagram showing the configuration of the automatic analyzer according to the third embodiment. This automatic analyzer 100b has the same configuration and functions as the units of the automatic analyzer 100 according to the first embodiment shown in FIG. 1 and the automatic analyzer 100a according to the second embodiment shown in FIG. About the unit which has, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The automatic analyzer 100b according to the third embodiment is different from the automatic analyzer 100 according to the first embodiment in that the analysis unit 10 and the analysis control unit 50 in FIG. 1 are replaced with the analysis unit 10b and the analysis control unit 50b. This is the point of replacement.

  The analysis unit 10b differs from the analysis unit 10 in that the cleaning nozzle 30 of the analysis unit 10 is replaced with the cleaning nozzle 30a of the analysis unit 10a in the second embodiment shown in FIG. The analysis control unit 50b includes a mechanism unit 51b and a mechanism control unit 52b that controls the mechanism unit 51b. The mechanism 51b is different from the mechanism 51 shown in FIG. 1 in that the mechanism that drives the cleaning nozzle 30 up and down of the mechanism 51 is replaced with a mechanism that drives the cleaning nozzle 30a up and down. Further, the mechanism control unit 52b is different from the mechanism control unit 52 shown in FIG. 1 in that the control of the mechanism control unit 52 that drives the cleaning nozzle 30 up and down is replaced with the control of the mechanism that drives the cleaning nozzle 30a up and down. That is.

Hereinafter, an example of the operation of the automatic analyzer 100b according to the third embodiment will be described with reference to FIGS.
After the sample container 11 that holds the test sample B in which the test item A is set is held on the sample table 12, when the measurement start is input from the operation unit 80, the automatic analyzer 100b starts operation. The system control unit 90 instructs the analysis control unit 50b to perform measurement based on the analysis parameter of the inspection item A input from the operation unit 80. The mechanism control unit 52b of the analysis control unit 50b determines the reaction container 17 used for the analysis of the inspection item A based on the analysis parameter of the inspection item A. And the mechanism part 51b is controlled and each operation | movement of dispensing of a sample and a reagent, stirring of liquid mixture, and washing | cleaning is performed in each stop position where the determined reaction container 17 stops.

  13 and 14 show the reaction container 17 used for the analysis of the test item A and the preparation of the diluted sample, and the timing at which the test sample B, the diluent, the first reagent, and the second reagent are discharged into the reaction container 17. FIG. FIG. 15 is a diagram showing the reaction container 17 used for the re-inspection of the inspection item A and the timing at which the diluted sample, the first reagent, and the second reagent are discharged into the reaction container 17.

  Each reaction container 17 has a position when the washing nozzle 30a is stopped at the upper stop position and is stopped at the seventh washing position W7 as a start position, and a start position after one round time. Stop at each stop position as the first round until it stops at the same position.

  In the first cycle of the first round, the reaction container 17 determined for analysis of the inspection item A stops at the stop position moved from the seventh cleaning position W7 by the rotation of the angle θ of the reaction table 18.

  Further, in the first cycle of the first round, the reaction container 17 that stops at the first washing position W1 is determined as the reaction container 17 used for preparing the diluted sample of the inspection item A. In addition, the six reaction containers 17 that stop at the second to seventh cleaning positions W2 to W7 are determined as the reaction containers 17 associated with the first half of the diluted sample preparation of the inspection item A. Note that the test sample, the diluted sample, and the reagent are not dispensed into the six reaction vessels 17 attached to the first half until the test of the test item A set for the test sample B is completed and the cleaning is performed. .

  In the second cycle, the reaction container 17 for analysis of the inspection item A stops at the sample discharge position Pa. Then, the sample dispensing probe 19 sucks the test sample B for analysis of the test item A from the sample container 11 held on the sample table 12, and discharges 5 μL into the reaction container 17 at the sample discharge position Pa.

  In the third cycle, the reaction container 17 in which the test sample B is discharged at the sample discharge position Pa in the second cycle stops at the first reagent discharge position Pb. Then, the first reagent dispensing probe 21 sucks the first reagent for analysis of the test item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 15, and the reaction container at the first reagent discharge position Pb. 100 μL is discharged into the tube 17.

  In the fifth cycle, the reaction container 17 in which the first reagent is discharged at the first reagent discharge position Pb in the third cycle stops at the first stirring position Pc. And the 1st stirring element 23 stirs the liquid mixture of the test sample B and the 1st reagent in the reaction container 17 of the 1st stirring position Pc.

  Further, in the fifth cycle, the reaction vessel 17 associated with the first half stopped at the second to sixth cleaning positions W2 to W6 in the first cycle stops at the third to seventh cleaning positions W3 to W7. In addition, the reaction vessel 17 for preparing a diluted sample of the inspection item A stopped at the first cleaning position W1 in the first cycle stops at the second cleaning position W2. Further, the reaction container 17 that stops at the first washing position W1 is determined as the reaction container 17 that accompanies the second half of the diluted sample preparation of the inspection item A.

  In each of the ninth, thirteenth, seventeenth, and twenty-first cycles, the reaction vessel 17 for preparing a diluted sample of the inspection item A stopped at the first washing position W1 in the first cycle is at each of the second to sixth washing positions W2 to W6. Stop.

  In the 25th cycle, the reaction vessel 17 for preparing a diluted sample of the inspection item A stopped in the 21st cycle at the sixth cleaning position W6 stops at the seventh cleaning position W7. In addition, the six reaction containers 17 that stop at the first to sixth cleaning positions W1 to W6 are determined as the reaction containers 17 that accompany the second half of the diluted sample preparation of the test item A. Note that the test sample, the diluted sample, and the reagent are not dispensed in the six reaction vessels 17 attached in the latter half until the test of the test item A set for the test sample B is completed and the cleaning is performed. .

  In the 27th cycle, the reaction vessel 17 stopped at the seventh cleaning position W7 in the 25th cycle is stopped at the sample discharge position Pa for the first time after being cleaned. The sample dispensing probe 19 sucks the test sample B for retesting of the inspection item A from the sample container 11 held on the sample table 12, and discharges 10 μL into the reaction container 17 at the sample discharge position Pa. .

  In this way, by setting the reinspection parameters, the test sample B for reinspection for preparing a diluted sample necessary for the reinspection is separated in parallel with the operation for analyzing the inspection item A. You can let them pour.

  In the 28th cycle, the reaction container 17 in which the test sample B for retesting is discharged at the sample discharge position Pa in the 27th cycle is stopped for the first time at the first reagent discharge position Pb after being cleaned. Then, the first reagent dispensing probe 21 sucks the reinspection dilution liquid of the inspection item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 15 and reacts at the first reagent discharge position Pb. 90 μL is discharged into the container 17.

  In this way, by setting the reinspection parameters, it is possible to dispense a diluting liquid for preparing a diluted sample required in the case of the reinspection in parallel with the operation for analyzing the inspection item A. it can.

  In the 30th cycle, the reaction container 17 in which the diluent for retesting has been discharged at the first reagent discharge position Pb in the 28th cycle is stopped at the first stirring position Pc after being washed. . The first stirrer 23 stirs the diluted sample obtained by diluting the test sample B with the diluent in the reaction container 17 at the first stirring position Pc.

  In the d cycle, the reaction vessel 17 that has been stirred at the first stirring position Pc in the fifth cycle stops at the second reagent discharge position Pd. Then, the second reagent dispensing probe 25 sucks the second reagent for analysis of the test item A from the reagent container 13 held in the reagent rack 14 in the reagent storage 16, and the reaction container at the second reagent discharge position Pd. 50 μL is discharged into the tube 17.

  In the (d + 1) cycle, the reaction vessel 17 in which the second reagent is discharged at the second reagent discharge position Pd in the d cycle stops at the second stirring position Pe. And the 2nd stirring element 27 stirs the test liquid B in the reaction container 17 of the 2nd stirring position Pe, and the liquid mixture of a 1st reagent and a 2nd reagent.

  In the h-th cycle when a predetermined cycle time has elapsed from the (d + 1) th cycle, the reaction vessel 17 that has been stirred at the first stirring position Pc at the 30th cycle is washed at the second reagent discharge position Pd after being washed. Stop for the first time. Then, the second reagent dispensing probe 25 stops the discharge of the second reagent to the reaction container 17 at the second reagent discharge position Pd.

  The measuring unit 29 in the reaction container 17 for analysis of the inspection item A that passes through the measurement position Pm during the period from the stop at the second stirring position Pe to the stop at the first cleaning position W1 in the (d + 1) cycle. Measure the mixture and generate absorbance data. The calculation unit 61 generates analysis data for the inspection item A based on the absorbance data generated by the measurement unit 29. When the analysis data of the inspection item A exceeds 1000, which is the upper limit value, the system control unit 90 instructs the analysis control unit 50b to re-inspect the inspection item A. When the analysis data is 1000 or less, the analysis control unit 50b is instructed to end the analysis of the inspection item A.

  The cleaning nozzle 30a has the inspection item A that stops at the first to seventh cleaning positions W1 to W7 in the g, (g + 4), (g + 8), (g + 12), (g + 16), (g + 20), and (g + 24) cycles. The reaction vessel 17 used for the analysis is washed.

  (G + 24) In the i-th cycle after a predetermined cycle time has elapsed from the cycle, the reaction vessel 17 for preparing a diluted sample that has been stirred in the 30th cycle is the first time at the first washing position W1 after washing. To stop. Then, when the analysis data of the inspection item A exceeds 1000, the cleaning nozzle 30a includes the reaction container 17 for preparing the diluted sample at the cleaning position W and the six attached to the first half in order to use the diluted sample for retesting. Washing of the reaction vessel 17 is stopped. Further, when the analysis data of the inspection item A is 1000 or less, since the reinspection is unnecessary, the seven reaction containers 17 at the cleaning position W are cleaned.

  In each (i + 4), (i + 8), (i + 12), (i + 16), (i + 20) cycle, the reaction container 17 for preparing the test item A diluted sample is stopped at each of the second to sixth washing positions W2 to W6. To do. When the analysis data of the inspection item A exceeds 1000, the cleaning nozzle 30a stops cleaning the reaction container 17 for preparing the diluted sample at the cleaning position W and the six reaction containers 17 associated with the first half and the second half. To do. When the analysis data of the inspection item A is 1000 or less, the seven reaction containers 17 at the cleaning position W are cleaned.

  In the (i + 24) cycle, the reaction container 17 for preparing the inspection item A diluted sample stops at the seventh washing position W7. When the analysis data of the inspection item A exceeds 1000, the cleaning nozzle 30a stops the cleaning of the reaction container 17 for preparing the diluted sample at the cleaning position W and the six reaction containers 17 associated with the latter half. When the analysis data of the inspection item A is 1000 or less, the seven reaction containers 17 at the cleaning position W are cleaned.

  As described above, when the analysis data of the inspection item A exceeds the upper limit value by setting the reinspection parameter, the first time after the reaction container 17 containing the diluted sample prepared for reinspection is washed. When the cleaning is stopped at the cleaning position W, the cleaning can be stopped. Further, when the analysis data of the inspection item A is equal to or less than the upper limit value, the cleaning can be performed when the reaction container 17 containing the diluted sample that does not require re-inspection is stopped at the cleaning position W for the first time after cleaning. it can.

  When the inspection item A is re-inspected, in the first cycle of the second round, the reaction vessel 17 for preparing the diluted sample of the inspection item A is rotated and moved from the seventh washing position W7 by the rotation of the angle θ of the reaction table 18. Stop at the specified position. In the second cycle, after the cleaning is performed, the second stop is performed at the sample discharge position Pa. Then, the sample dispensing probe 19 stops the discharge of the sample into the reaction container 17 at the sample discharge position Pa. In the third cycle, the reaction container 17 stopped at the sample discharge position Pa in the second cycle is stopped at the first reagent discharge position Pb for the second time after being washed. Then, the first reagent dispensing probe 21 stops the discharge of the first reagent and the diluent to the reaction container 17 at the first reagent discharge position Pb.

  The sixth cycle to the (d + 5) cycle operate in the same way as the sixth cycle to the (d + 5) cycle of the second round in the first embodiment described in FIG.

  The measurement unit 29 measures the liquid mixture in the reaction container 17 for the inspection item A re-inspection that passes through the measurement position Pm after it stops at the second stirring position Pe until it stops at the cleaning position W, and absorbs the absorbance. Generate data. Then, the calculation unit 61 generates analysis data for the inspection item A based on the absorbance data generated by the measurement unit 29. The output unit 70 outputs the analysis data of the inspection item A generated by the calculation unit 61.

  According to the third embodiment described above, by setting a reinspection parameter, preparation of a diluted sample necessary for reinspection of the inspection item A is performed in parallel with the operation for analyzing the inspection item A. It can be carried out. If the analysis data of the inspection item A exceeds the upper limit value, the washing can be stopped when the reaction container 17 containing the prepared diluted sample is washed at the washing position W for the first time after washing. . Further, when the analysis data of the inspection item A is equal to or less than the upper limit value, the cleaning can be performed when the reaction container 17 containing the unnecessary diluted sample is stopped at the cleaning position W for the first time after cleaning. Furthermore, the diluted sample can be sucked from the reaction vessel 17 that has been washed and discharged into the reaction vessel 17 that has been washed, so that reinspection can be performed.

  As a result, it is possible to reduce the burden on the operator and perform re-examination quickly.

  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.

Pa Sample discharge position Pb First reagent discharge position Pc First stirring position Pd Second reagent discharge position Pe Second stirring position Pf Diluted sample suction position W Washing position 17 Reaction container 19 Sample dispensing probe 21 First reagent dispensing probe 23 First stirrer 25 Second reagent dispensing probe 27 Second stirrer 29 Measuring unit 30 Washing nozzle 50 Analysis control unit 51 Mechanism unit 52 Mechanism control unit 100 Automatic analyzer

Claims (8)

Each cycle time moves in one direction and stops at each stop position including the cleaning position, sample discharge position, and reagent discharge position different from those before the movement, and every round time that is longer than the one cycle time. A reaction vessel that stops at the same stop position; and
A washing nozzle for washing the reaction vessel stopped at the washing position;
A sample dispensing probe for discharging a sample into a reaction vessel stopped at the sample discharge position;
A reagent dispensing probe for discharging a reagent into a reaction container stopped at the reagent discharge position;
A measuring unit for measuring a mixed liquid in a reaction container in which the sample and the reagent are discharged;
After the sample for analysis is discharged to the reaction container that stops at the sample discharge position after being cleaned by the cleaning nozzle, the same sample as that for analysis is used for re-examination in the reaction container that stops at the sample discharge position When the analysis data obtained by measuring the mixed liquid in the reaction container in which the sample for analysis is discharged exceeds a preset upper limit value, the cleaning nozzle performs cleaning after the cleaning is performed. An automatic analyzer comprising: an analysis control unit for stopping washing of the reaction container from which the retest sample stopped at the first position is discharged.   The analysis controller is configured to dilute the sample with the reagent dispensing probe when the reaction container for discharging the retest sample stops at the reagent discharge position before stopping at the cleaning position for the first time. The automatic analyzer according to claim 1, wherein the automatic analyzer is discharged.   The analysis control unit, when the analysis data is equal to or less than the upper limit value, causes the reaction container in which the sample for retesting stopped at the cleaning position to be discharged first is cleaned. The automatic analyzer according to claim 1 or 2. The stop position where the reaction vessel stops includes a diluted sample suction position,
When the analysis data exceeds the upper limit value, the analysis control unit is configured so that when the reaction container in which the sample for retesting and the diluent are discharged stops at the diluted sample suction position, The automatic analyzer according to claim 2, wherein the diluted sample is sucked and the diluted sample is discharged into a reaction container that stops at the sample discharge position after being cleaned by the cleaning nozzle. The cleaning nozzle comprises at least a first cleaning nozzle for cleaning the reaction container stopped at the first cleaning position and a second cleaning nozzle for cleaning the reaction container stopped at the second cleaning position,
5. The first and second cleaning nozzles independently enter the reaction container at the first cleaning position and the reaction container at the second cleaning position, respectively, and perform cleaning. The automatic analyzer according to any one of the above. The cleaning nozzle comprises at least a first cleaning nozzle for cleaning the reaction container stopped at the first cleaning position and a second cleaning nozzle for cleaning the reaction container stopped at the second cleaning position,
The first and second cleaning nozzles are
When the analysis data exceeds a preset upper limit value, when the reaction container in which the sample for retesting has been discharged stops at the first cleaning position or the second cleaning position, the first and second Stop washing the reaction vessel stopped at the washing position,
When the analysis data is equal to or lower than a preset upper limit value, the first and second washings are performed when the reaction container in which the sample for retesting is discharged stops at the first washing position or the second washing position. The automatic analyzer according to any one of claims 1 to 4, wherein cleaning is performed by entering a reaction vessel stopped at a position. Each cycle time moves in one direction and stops at each stop position including a cleaning position, a sample discharge position, a reagent discharge position, and a diluted sample suction position that are different from those before the movement, and is longer than the one cycle time. A reaction vessel that stops at the same stop position every round time;
A washing nozzle for washing the reaction vessel stopped at the washing position;
A sample dispensing probe for discharging a sample into a reaction vessel stopped at the sample discharge position;
A reagent dispensing probe for discharging a reagent or a diluent for diluting the sample into the reaction container stopped at the reagent discharge position;
A measuring unit for measuring a mixed liquid in a reaction container in which the sample and the reagent are discharged;
After the sample for analysis is discharged to the reaction container that stops at the sample discharge position after being cleaned by the cleaning nozzle, the same sample as that for analysis is used for re-examination in the reaction container that stops at the sample discharge position. When the analysis data obtained by measurement of the mixed liquid in the reaction container in which the sample for analysis is discharged exceeds a preset upper limit value, the cleaning nozzle performs the cleaning after the cleaning is performed. And an analysis control unit for sucking the sample for retesting stopped at the diluted sample suction position and the diluted sample in the reaction vessel from which the diluent has been discharged before stopping at the cleaning position for the first time. An automatic analyzer.   8. The diluted sample dispensing probe according to claim 7, further comprising a diluted sample dispensing probe that sucks a diluted sample in the reaction vessel stopped at the dilution suction position and discharges the diluted sample to the reaction vessel cleaned by the washing nozzle. Automatic analyzer.

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