JP5738696B2 - Biochemical analyzer - Google Patents

Description

  The present invention relates to a biochemical analyzer for analyzing biological samples such as blood and urine.

  FIG. 1 shows a schematic example of a biochemical analyzer. The biochemical analyzer is roughly composed of a transport mechanism A, a measurement mechanism B, and a control mechanism C. A specimen storage container that stores a biological sample (hereinafter referred to as a specimen) by the transport mechanism A is used as the measurement mechanism B. In the measurement mechanism B, the sample and the reagent are dispensed into a reaction container, and the reaction of the mixed solution of the sample and the reagent is measured. The control mechanism C controls the transport mechanism A and the measurement mechanism B and analyzes the results measured by the measurement mechanism B.

The transport mechanism A includes a rack supply unit 3 that supplies a rack 2 in which a plurality of sample containers 1 (five in the case of FIG. 1) are set, and a rack collection unit that collects a rack after a predetermined process is completed. 4 and transport paths 5 for transporting racks between the rack supply unit 3 and the measurement mechanism B and between the measurement mechanism and the rack collection unit 4 (the former is referred to as the forward path 5a and the latter is referred to as the return path 5b). Each of the racks 2 supplied to the rack supply unit 3 is sequentially sent to the forward path 5a, and a predetermined suction is performed at the sample suction position, and a predetermined process is completed. The rack is sent to the return path 5b and is collected by the rack collection unit 4.
A bar code reader 21 (or identification information generating means) for reading the sample identification information attached to the sample container 1 and the rack 2 is provided in the forward path 5a of the transport path 5.
The measurement mechanism B includes a reaction disk 6, a first reagent table 7, a second reagent table 8, a sample dispenser 9, a first reagent dispenser 10, and a second reagent dispenser 11.

  The reaction disk 6 can be set with a large number of reaction vessels 12 and can be rotated intermittently. The agitation mechanism 13 agitates the sample and the reagent dispensed in the reaction vessel 12, and the mixing of the sample and the reagent. An optical measuring mechanism 14 comprising a light source and a photometer for optically measuring the reaction of the liquid, and a cleaning mechanism 15 for discharging the mixed liquid in the reaction tube after the measurement and cleaning the inside with the cleaning liquid are provided. .

  The sample dispenser 9 aspirates a predetermined amount of sample from the sample storage container 1 that has reached the sample aspirating position, and discharges the sample into the reaction container that has reached the predetermined position by the rotation of the reaction disk 6 (dispensing). Note) It has a movable arm with a nozzle.

  The first reagent dispenser 10 aspirates a predetermined amount of the first reagent from the first reagent container set on the first reagent table 7 that has come to a predetermined position by the rotation of the first reagent table 7; A movable arm having a nozzle for discharging (dispensing) the first reagent into a reaction container which has come to a predetermined position by the rotation of the reaction disk 6 is provided. Similarly, the second reagent dispenser 11 aspirates a predetermined amount of the second reagent from the second reagent container set on the second reagent table that has come to a predetermined position by the rotation of the second reagent table 8. In addition, a movable arm having a nozzle for discharging (dispensing) the second reagent into the reaction container that has come to a predetermined position by the rotation of the reaction disk 6 is provided.

The control mechanism C is composed of a control computer 16 composed of a computer for controlling the operation of each part of the transport mechanism A and the measurement mechanism B.
A host computer that sends various commands to the control mechanism C to the control computer 16 of the biochemical analyzer 100 and performs data processing based on measurement data sent via the control computer 16. 17, an input device 18 including a keyboard and a mouse, a display device 19 and a memory 20 are also included.

  In the biochemical apparatus configured in this way, the following three types are known as specimen analysis methods: 1) specimen barcode analysis method, 2) rack number analysis method, 3) sequential number analysis method.

First, the specimen barcode analysis method will be described. In the case of the specimen barcode analysis method, specimen identification information is attached to the specimen storage container. As shown in FIG. 2, when a sample is placed in the sample storage container 1, in order to identify the sample that has been placed, sample identification information (hereinafter referred to as a sample ID number) is provided at a specific location on the outer surface of the sample storage container 1. A specimen barcode label 52 is attached.
As shown in FIG. 3, the rack has a slit 54 in the vertical direction on the side surface of the rack 2 for storing a plurality of sample storage containers so that the sample barcode label 52 affixed to the stored sample storage container 1 can be seen. Is formed.
As shown in FIGS. 1 and 4, a sample storage container AV storing a sample to be analyzed (for example, serum, urine, etc.) is stored in a rack 2 ′. This rack 2 ′ is set in the rack supply unit 3 of the biochemical analyzer 100. The rack 2 ′ is sent out from the rack supply unit 3 to the forward path 5 a, and the specimen ID number is read from the specimen barcode label 52 of the specimen storage container AV by the barcode reader 21 and sent to the control computer 16.

  The control computer 16 reads designated analysis item information and sample container shape information regarding the sample to be dispensed from the host computer 21 based on the sample ID number from the barcode reader 21, and the designated analysis item information and sample container shape. Since the command is sent to the sample dispenser 9 of the biochemical apparatus 100 based on the information, the sample dispenser 9 is on the forward path 5a of the transport path 5 and the sample storage container AV of the rack 2 ′ that has come to the sample suction position. The reaction disk 6 rotates and dispenses into the reaction container 12 that has come to a predetermined position.

  Next, the first reagent in the first reagent container that has come to a predetermined position by the rotation of the first reagent table 7 is sucked by a predetermined amount by the first reagent dispenser 10, and predetermined by the rotation of the reaction disk 6. It is dispensed into the reaction vessel 12 coming to the position.

  Next, the stirring mechanism 13 stirs the specimen and the first reagent dispensed into the reaction container 12 that has come to a predetermined position by the rotation of the reaction disk 6.

  Next, the second reagent in the second reagent container that has reached a predetermined position by the rotation of the second reagent table 7 is sucked by a predetermined amount by the second reagent dispenser 11, and the predetermined position by the rotation of the reaction disk 6. Is dispensed into the reaction vessel 12 coming into

Next, the agitation mechanism 13 agitates the mixed solution and the second reagent in the reaction container 12 that are in a predetermined position by the rotation of the reaction disk 6. If dispensing of the second reagent is unnecessary depending on the analysis item, the second reagent is not aspirated / dispensed and the subsequent (second) stirring is not performed.
Next, the absorbance of the liquid mixture in the reaction vessel 12 that has reached a predetermined position due to the rotation of the reaction disk 6 is measured by the optical measuring device 14, and this absorbance value is sent to the host computer 17 via the control computer 16. The component analysis of the sample is performed, and the analysis result is stored in the external memory 20 in association with each sample ID number. The reaction container in which the liquid mixture whose absorbance is measured by the optical measuring device 14 is washed by the washing mechanism 15.

  Next, the rack number analysis method will be described. In the case of the rack number analysis method, sample identification information is attached to the rack. As shown in FIGS. 1 and 5, a sample barcode label 52 having sample identification information (hereinafter referred to as a sample ID number) is affixed to a specific location of the rack 1 in order to specify the sample that has been placed.

  The sample storage container AV containing the sample to be analyzed is stored in the rack 2 ′ to which the sample barcode label 52 ′ is attached.

The rack 2 'is set in the rack supply unit 3 of the transport mechanism A of the biochemical analyzer 100 shown in FIG. The rack 2 'is transported from the rack supply unit 3 to the transport path 5, and the bar code reader 21 on the forward path 5a of the transport path 5 uses the rack number as the sample ID number from the sample barcode label 52' of the rack 2 '. Is sent to the control computer 16.
The control computer 16 reads designated analysis item information and sample container shape information regarding the sample to be dispensed corresponding to the rack number from the barcode reader 21 from the host computer 21, and the designated analysis item information and sample container shape information. Based on the above, the sample dispenser 9, the first reagent dispenser 10, the first reagent table 7, the second reagent dispenser 11, the second reagent table 8, the reaction disk 6, the stirring mechanism 13, and the optical of the measurement mechanism B The measurement mechanism 14 and the cleaning mechanism 15 are controlled.
Then, the sample is aspirated and dispensed from the sample storage container AV in which the sample to be dispensed is stored, the designated analysis item is analyzed using the reagent for the designated analysis item, and the absorbance of the measured sample is determined by the control computer 16 is sent to the host computer 17 for component analysis, and the analysis result is stored in the external memory 20 corresponding to each sample ID number.
Next, a sequential number analysis method will be described. In the case of the sequential number analysis method, the configuration different from the biological analyzer described above is provided with identification information generating means 22 that generates sample identification information in the order of analysis of the sample to be dispensed, and is attached to the sample storage container 1 or rack 2. The bar code reader 21 that reads the sample identification information is deleted. FIG. 6 shows a schematic example of the configuration of a biochemical analyzer to which the sequential number analysis method is applied. In the figure, the same reference numerals as those used in FIG. 1 denote the same components.
As shown in FIGS. 6 and 7, the sample storage container AV storing the sample to be analyzed is stored in the rack 2 ′, set in the rack supply unit 3 of the biochemical apparatus 100, and the analysis is started. The identification information generating means 22 automatically generates a sequential number in the order of analysis of the sample to be dispensed and sends it to the control computer 16. The control computer 16 reads designated analysis item information and sample container shape information relating to the sample to be dispensed corresponding to the received sequential number from the host computer 17 and measures the measurement mechanism based on the designated analysis item information and sample container shape information. The B sample dispenser 9 and the reaction disk 6 are controlled.
Then, the sample is aspirated and dispensed from the sample storage container AV in which the sample to be dispensed is stored, the designated analysis item is analyzed using the reagent for the designated analysis item, and the absorbance of the measured sample is determined by the control computer 16 is sent to the host computer 17 for component analysis, and the analysis result is stored in the external memory 20 corresponding to each sample ID number.

JP 2010-19808 A

  Now, in such a biochemical analyzer, the amount of the sample stored in the sample storage container may not be sufficient. For example, since a sufficient amount of samples cannot be collected in the case of a serious patient or an infant, generally a small amount of samples are stored in the sample storage container of such a subject.

  When such a small amount of sample is placed in, for example, the sample storage container S (a container having a standard length and a standard diameter) shown in FIG. 8A, as described above, the ID number of this sample After the analysis item information and the shape information of the sample storage container S are stored in the memory 20 corresponding to the above, the movable arm of the sample injector 9 is lowered by a distance based on the container shape information of the sample storage container. Even if the sample is aspirated, the tip of the nozzle attached to the movable arm does not reach the sample because of the low height of the sample from the bottom of the sample container, or even if it reaches the sample A situation occurs in which a predetermined amount of specimen cannot be aspirated without entering. Therefore, in order to prevent such a situation from occurring, the operator can use a sample storage container that can aspirate a predetermined amount of sample, for example, the sample storage container T shown in FIG. 8B (from the standard sample storage container S). The sample is transferred to a sample storage container having a short length and a small diameter), and the sample storage container T shown in FIG. 8C is placed in the sample storage container S to which the same sample barcode label is attached.

  However, when the barcode reader 21 reads the ID number of the small sample, the shape information of the sample storage container (type information of the sample storage container S) corresponding to the sample ID number is read from the external memory 20. The movable arm of the dispenser 9 moves by the distance set in the sample storage container S, and the tip of the nozzle attached to the movable arm collides with the bottom of the sample storage container T that actually stores the sample. Resulting in.

  In order to prevent this from happening, when the sample is transferred to another type of sample storage container, the operator uses the input device 18 to change the sample ID number of the sample whose sample storage container has been changed. Correspondingly, the changed shape information of the sample container is input to the host computer 17 to change the contents of the memory 20 for the sample.

  However, each unit of the control mechanism C excluding the place where the measurement mechanism B constituting the main body of the biochemical analyzer and the control computer 16 attached to the measurement mechanism B are placed and the control computer 16 are placed. The locations are usually separate rooms (ie, the two locations are separate), and the replacement of the memory contents is a cumbersome task, resulting in a loss of analysis time. It is connected.

  The present invention has been made for the purpose of solving such problems, and provides a novel biochemical analyzer.

The biochemical analyzer of the present invention sucks a sample from a sample container held in a rack by a sample dispensing mechanism and discharges the sample to a reaction container, and causes the sample to react with a reagent for a specified analysis item in the reaction container. A chemical analyzer that performs analysis, an identification information generation unit that recognizes identification information attached to a rack or a sample storage container for a sample to be dispensed and generates sample identification information, and a sample from the identification information generation unit Based on the identification information, the designated analysis item information and sample container shape information relating to the sample to be dispensed are read from the host computer and stored, and based on the stored designated analysis item information and sample container shape information, Controls the chemical analyzer to perform aspiration analysis for specified analysis items using a reagent for specified analysis items while aspirating and dispensing the sample from the sample storage container containing the specified sample A chemical analysis device equipped with a computer,
Of the identification information attached to the rack or sample storage container for the sample to be dispensed, the identification information generation unit recognizes the identification information that is not used for generating the sample identification information and generates sample container shape information for correction. When the correction sample container shape information is generated from the corrected sample container shape information generation unit, the control computer dispenses the sample dispensing based on the correction sample container shape information. Control the mechanism to aspirate and dispense the sample from the sample storage container containing the sample to be dispensed, and use the reagent for the specified analysis item based on the stored specified analysis item information for the specified analysis item Control is performed to perform analysis.

  According to the present invention, even when the sample storage container storing the sample to be measured is transferred to a sample storage container of another shape immediately before the analysis of the sample, it is automatically performed without depending on the operation operation. Since the shape information of the sample storage container can be changed, the dispensing mechanism can be controlled based on the changed shape information of the sample storage container, and the loss of analysis time is eliminated.

It is a figure which shows one schematic example of a structure of a biochemical analyzer. It is a figure which shows one schematic example of a sample storage container. It is a figure which shows an example of a sample storage container and a rack. It is a figure which shows one outline explaining the sample barcode analysis method. It is a figure which shows one outline explaining the rack number analysis method. It is a figure which shows one schematic example of a structure of the biochemical analyzer to which the sequential number analysis method was applied. It is a figure which shows one outline explaining the sequential number analysis method. The outline of three types of specimen storage containers is shown. It is a figure which shows one outline of a structure of the biochemical analyzer which concerns on Embodiment 1, 2 of this invention. It is a figure which shows one outline explaining the sample barcode analysis method which concerns on Embodiment 1 of this invention. It is a figure which shows one outline explaining the rack number analysis which concerns on Embodiment 2 of this invention. It is a figure which shows one outline of a structure of the biochemical analyzer which concerns on Embodiment 3 of this invention. It is a figure which shows one outline explaining the sequential number analysis method which concerns on Embodiment 3 of this invention.

Embodiments of the present invention will be described in detail with reference to the following drawings.
(Embodiment 1)
FIG. 9 shows a schematic example of the configuration of the biochemical analyzer according to Embodiment 1 of the present invention. In the figure, the same reference numerals as those used in FIG. 1 denote the same components.

  This embodiment differs from the conventional example in that the shape of the correction sample container is determined from the identification information of the barcode label attached to the sample storage container so that the analysis can be performed even when the shape of the sample storage container changes immediately before the analysis. This is the point that a modified specimen container shape information generating means for generating information is provided.

  That is, in FIG. 9, reference numeral 23 in FIG. 9 indicates the identification of the one that is not used to generate the sample identification information from the barcode reader 21 among the identification information of the barcode attached to the sample storage container or rack for the sample to be dispensed. It is a corrected sample container shape information generating means for recognizing information and generating correction sample container shape information.

The bar code reader 21 reads the identification information attached to the sample container 1 or the rack at the same time.
In such a biochemical analyzer, first, a specimen barcode analysis method using the biochemical analyzer employing the present invention will be described. In the case of this analysis method, the sample barcode label is attached to the sample storage container, and the sample container shape barcode label is attached to a dedicated rack.

In FIG. 9, the operator inputs an analysis item including sample container shape information corresponding to the sample ID number of each sample to be analyzed, which is manually input using the input device 18 or created by the sample collection department. Through the external memory 20.
Next, the operator sets the sample container storing the inputted samples in the rack. At this time, for example, when there is a small amount of sample in the sample storage container S (FIG. 8A), the operator can select a sample storage container that can aspirate a predetermined amount of sample, for example, FIG. The sample is transferred to the sample storage container T shown in (b), and the sample storage container T is changed to the sample storage container ST set in the sample storage container S as shown in (c) of FIG.
Regarding the small sample, the shape information of the first sample storage container S is already stored in the external memory 20 in correspondence with the small sample ID number.
9 and 10, the operator sets the sample storage container ST in the dedicated rack 2a to which the sample container shape barcode label 52a in which the sample container shape information is stored is attached.
When this rack 2a is placed in the rack supply unit 3 of the biochemical analyzer 100, when the rack is sent to the forward path 5a, the barcode reader 21 reads and corrects the sample ID number from the sample barcode label 52 of the sample storage container ST. This is sent to the sample container shape information generating means 23. At the same time, the specimen reader container shape information is read from the specimen container shape barcode label 52 a of the dedicated rack 2 a by the barcode reader 21 and sent to the corrected specimen container shape information generating means 23.

  When the sample identification information sent from the barcode reader 21 is the sample ID number for generating the sample identification information, the corrected sample container shape information generating means 23 sends the sample identification information to the control computer 16. When the correction sample container shape information which is not used is recognized, the correction sample container shape information is generated and sent to the control computer 16.

  The control computer 16 temporarily stores the sent correction sample container shape information in a built-in memory (not shown), and based on the sample ID number, the designated analysis item information relating to the sample to be dispensed and the sample container The shape information is read from the host computer 21. At this time, the sample container shape information stored in the built-in memory (not shown) is used without using the sample container shape information read from the host computer 17. The specimen dispensing mechanism of the biochemical analyzer 100 is controlled based on the read specimen container shape information.

As a result, the sample is accurately aspirated from the sample storage container ST in which the sample to be dispensed is stored, and dispensing is performed.
Thereafter, the control computer 16 controls the measurement mechanism B of the biochemical analyzer 100 based on the specified analysis item information, and analyzes the specified analysis item using a reagent for the specified analysis item based on the specified analysis item information. Is done.
(Embodiment 2)
Subsequently, a rack number analysis method according to Embodiment 2 of the present invention will be described. In the case of this analysis method, a sample barcode label is attached to the rack, and a sample container shape barcode label is attached to the sample storage container.
Immediately before the analysis, when a sample with a small amount of sample is found in the sample storage container 1, as shown in FIG. 11, the operator shows a sample storage container in which a predetermined sample can be aspirated, that is, the sample is shown in FIG. The sample is transferred to the sample container T and set in the sample container ST on which the sample container shape barcode label 52a storing the sample container shape information is pasted. Then, the sample storage container ST is set in the rack 2a to which the sample barcode label 52 is attached.
When the rack 2a is placed in the rack supply unit 3 of the biochemical analyzer 100 shown in FIG. 9, when the rack 2a is sent out to the forward path 5a, the barcode reader 21 reads the sample container shape barcode label of the sample storage container ST. The specimen storage container shape information is read from 52a and the specimen ID number is read from the specimen barcode label 52 of the rack 2a and sent to the corrected specimen container shape information generating means 23.

  When the sample identification information sent from the barcode reader 21 is the sample ID number for generating the sample identification information, the corrected sample container shape information generating means 23 sends the sample identification information to the control computer 16. When the correction sample container shape information which is not used is recognized, the correction sample container shape information is generated and sent to the control computer 16.

  The control computer 16 temporarily stores the sent sample container shape information for correction in a built-in memory (not shown), and designates specified analysis item information related to the sample to be dispensed based on the sample ID number and the sample container. The shape information is read from the host computer 21. At this time, the sample container shape information stored in the built-in memory (not shown) is used without using the sample container shape information read from the host computer 17. The specimen dispensing mechanism of the biochemical analyzer 100 is controlled based on the read specimen container shape information.

  As a result, the sample is accurately aspirated and dispensed from the sample storage container ST of the rack 2a in which the sample to be dispensed is stored.

Thereafter, the control computer 16 controls the measurement mechanism B of the biochemical analyzer 100 based on the specified analysis item information, and analyzes the specified analysis item using the reagent for the specified analysis item based on the specified analysis item information. Done.
(Embodiment 3)
Next, a sequential number analysis method for a biochemical analyzer according to Embodiment 3 of the present invention will be described.
FIG. 12 shows a schematic example of the configuration of a biochemical analyzer to which the sequential number analysis adopting the present invention is applied. In the figure, the same reference numerals as those used in FIG. 1 denote the same components.

The difference between the present embodiment and the biochemical analyzer that employs the sequence number analysis method of the prior art is that an arrangement position of the corrected specimen container shape information generating means 23 and a barcode reader 21 'are provided.
A barcode reader 21 ′ is provided in the forward path 5 of the transport path 5, and a corrected specimen container shape information generating means 23 is provided between the information identification generating means 22 and the control computer 16, connected to the output side thereof. Is a point.

  In the biochemical analyzer to which the sequential number analysis having such a configuration is applied, when a sample with a small amount of sample is found in the sample storage container 1, the operator can store a predetermined sample in a sample storage container, that is, a sample Is transferred to the specimen storage container T and set in the specimen storage container ST to which the specimen container shape barcode label 52a storing the specimen container shape information is attached. Then, the sample storage container ST is set in the rack 2.

  When the sample storage container ST storing the sample to be analyzed is stored in the rack 2, set in the rack supply unit 3 of the biochemical apparatus 100, and the analysis is started, the identification information generating means 22 of the biochemical analysis apparatus 100 dispenses. Sequential numbers are automatically generated in the order of analysis of the target samples and sent to the control computer 16 via the corrected sample container shape information generating means 23. At this time, when the corrected sample container shape information generating unit 23 recognizes the correction sample container shape information which is not used for generating the sample identification information from the barcode reader 21, the corrected sample container shape information is generated. To the control computer 16.

The control computer 16 temporarily stores the sent sample container shape information for correction in a built-in memory (not shown). Based on the sent sequential number, the designated analysis item information related to the sample to be dispensed and The sample container shape information is read from the host computer 21. At this time, the sample container shape information for correction stored in the built-in memory (not shown) is used without using the sample container shape information read from the host computer 17. The information is read out, and the sample dispensing mechanism of the biochemical analyzer 100 is controlled based on the correction sample container shape information.
As a result, the sample is accurately aspirated and dispensed from the sample storage container ST of the rack 2 in which the sample to be dispensed is stored. Thereafter, the control computer 16 controls the measurement mechanism B of the biochemical analyzer 100 based on the specified analysis item information, and analyzes the specified analysis item using the reagent for the specified analysis item based on the specified analysis item information. Done.

DESCRIPTION OF SYMBOLS 1 ... Sample storage container 2, 2 ', 2a ... Rack 3 ... Rack supply part 4 ... Rack collection | recovery part 5 ... Conveyance path 6 ... Reaction disk 7 ... 1st reagent Table 8 ... Second reagent table 9 ... Sample dispenser 10 ... First reagent dispenser 11 ... Second reagent dispenser 12 ... Reaction vessel 13 ... Agitating mechanism 14 ... Optical measurement mechanism 15 ... Cleaning mechanism 16 ... Control computer 17 ... Host computer 18 ... Input device 19 ... Display device 20 ... External memory 21, 21 '... Bar Code reader 22 ... identification information generating means 23 ... corrected specimen container shape information generating means 52 ... specimen barcode label 52a ... correcting specimen container shape information barcode label 54 ... slit

Claims (4)

A chemical analyzer for aspirating a specimen from a specimen storage container held in a rack by a specimen dispensing mechanism and discharging the specimen to a reaction container, and reacting the specimen with a reagent for a specified analysis item in the reaction container for analysis. An identification information generation unit that generates identification information by recognizing identification information attached to a rack or a sample storage container for a sample to be dispensed, and the dispensing target based on the sample identification information from the identification information generation unit Specified analysis item information and sample container shape information regarding the sample of the sample are read from the host computer and stored, and based on the stored designated analysis item information and sample container shape information, the sample storage container in which the sample to be dispensed is stored A chemical analyzer equipped with a control computer that controls the chemical analyzer so that the specified analysis item is analyzed using the reagent for the specified analysis item. In the device,
Of the identification information attached to the rack or sample storage container for the sample to be dispensed, the identification information generation unit recognizes the identification information that is not used for generating the sample identification information and generates sample container shape information for correction. When the correction sample container shape information is generated from the corrected sample container shape information generation unit, the control computer dispenses the sample dispensing based on the correction sample container shape information. Control the mechanism to aspirate and dispense the sample from the sample storage container containing the sample to be dispensed, and use the reagent for the specified analysis item based on the stored specified analysis item information for the specified analysis item A chemical analyzer characterized by controlling to perform analysis. The identification information generating unit recognizes the identification information attached to the specimen storage container to generate specimen identification information, and the corrected specimen container shape information generating means recognizes the identification information attached to the rack and corrects the identification information. 2. The chemical analyzer according to claim 1, wherein the specimen container shape information is generated. The identification information generating unit recognizes the identification information attached to the rack and generates sample identification information, and the corrected sample container shape information generating means recognizes the identification information attached to the sample storage container and corrects the identification information. 2. The chemical analyzer according to claim 1, wherein the specimen container shape information is generated. A chemical analyzer for aspirating a specimen from a specimen storage container held in a rack by a specimen dispensing mechanism and discharging the specimen to a reaction container, and reacting the specimen with a reagent for a specified analysis item in the reaction container for analysis. , An identification information generation unit that generates sample identification information based on the analysis order for the sample to be dispensed, and designated analysis item information and sample container regarding the sample to be dispensed based on the sample identification information from the identification information generation unit Shape information is read from the host computer, stored, and based on the stored designated analysis item information and sample container shape information, the sample is aspirated and dispensed from the sample storage container in which the sample to be dispensed is stored, and specified. In a chemical analyzer equipped with a control computer that controls a chemical analyzer to perform analysis on a specified analysis item using a reagent for the analysis item, the rack or sample collection Revision specimen container shape information generating means for recognizing identification information attached to the container and generating correction specimen container shape information is provided, and the control computer receives the correction specimen container shape information from the corrected specimen container shape information generation means. If generated, the sample dispensing mechanism is controlled based on the correction sample container shape information to aspirate and dispense a sample from the sample storage container in which the sample to be dispensed is stored, and the stored A chemical analyzer that controls to perform analysis on a designated analysis item using a reagent for the designated analysis item based on the designated analysis item information.

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