JP2009244238A - Automatic analyzer - Google Patents

Abstract

【Task】
The function of discriminating the type of reagent disk according to the type of reagent used in the automatic analyzer and automatically discriminating the type of reagent disk, and automatically switching the screen and selection items displayed on the operation screen from the discrimination result Thus, a reagent management system with improved operability and reliability is provided.
[Solution]
In an automated analyzer that analyzes biological samples such as blood and urine, in a reagent management system that manages a reagent disk that holds a plurality of reagents for mixing and reacting with a sample, and analysis parameters of the reagent, expiration date, etc. A dedicated reagent whose analysis parameters are fixed by provision from a reagent supplier, etc., a general-purpose reagent for which the operator can arbitrarily set the analysis parameters, a reagent disk that can be removed from the automatic analyzer, and a reagent refrigerator By automatically discriminating with the disk fixing unit, the screen displayed on the system is automatically switched.
[Selection] Figure 1

Description

  The present invention relates to an automatic analyzer that performs qualitative and quantitative analysis of biological samples such as blood and urine, and more particularly to an automatic analyzer that includes a reagent disk on which a plurality of reagent containers can be arranged.

  An automatic analyzer that analyzes a plurality of items of a biological sample such as blood or urine generally includes a reagent container holding unit that holds a plurality of reagent containers that hold a reagent for mixing and reacting with the sample. It is. In recent years, analysis items have increased dramatically due to advances in medicine and pharmacy, and many types of reagents have come to the market accordingly. Therefore, the reagent container holding means has been improved so that as many reagent containers as possible can be held in the automatic analyzer. A typical example of such reagent container holding means is a reagent disk in which reagent containers are closely arranged on a rotatable disk. In such a reagent disk, a barcode reader, an identification mark such as an RFID, and a tag are provided so that the apparatus can automatically determine what kind of reagent is installed on the disk. Such an automatic analyzer is described in Patent Document 1, for example.

JP 2005-43137 A

  Reagents that can be used in automatic analyzers can be broadly divided into dedicated reagents whose analysis parameters are fixed by the supplier and any reagents, and the operator inputs the parameters for analysis. There are two types of general purpose reagents. The conventional automatic analyzer discriminates the type of the reagent installed on the reagent disk by reading the barcode attached to the reagent container as described above, and if necessary, reads the reagent read on the operation unit screen. In addition to displaying contents, it also has a function of changing reagent parameters. Such a function is designed in consideration of handling a general-purpose reagent. On the other hand, even when a dedicated reagent is set on the reagent, the user can change parameters.

  However, even if the dedicated reagent is set, if the user changes the reagent parameter by mistake, there is a possibility that an incorrect analysis result is reported.

  An object of the present invention is to provide an automatic analyzer having a protection function that prevents erroneous reagent parameter changes even when a dedicated reagent is set on a reagent disk.

  Means of the present invention for achieving the above object are as follows.

  In an automatic analyzer equipped with a reagent disk capable of mounting a plurality of reagent containers holding reagents, the apparatus has a plurality of types of reagent disks corresponding to the types of reagent containers to be mounted, and identifies the types of the reagent disks Automatic analyzer with identification means.

  The reagent disk can arrange a plurality of reagent containers on a substrate and includes a mechanism for rotating the disk so that an arbitrary reagent container can be positioned at a predetermined reagent suction position. Although the disk is referred to, it does not necessarily have a disk shape, and may be provided with a mechanism for rotating an arbitrary reagent container at the reagent suction position by rotating. The reagent container can take various shapes, but generally has a rectangular parallelepiped shape or a fan shape (as viewed from the top) according to the purpose. Further, the dimensions can be appropriately changed according to the reagent volume.

  According to the present invention, errors in analysis results due to user operation errors can be reduced, and reliability of analysis results can be improved.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 shows the overall configuration of the automatic analyzer of the present invention. In the automatic analyzer of the present invention, a sample disk 2 in which a sample container 3 containing a sample to be analyzed is set, a reaction in which a sample is sucked from the sample disk 2 and a plurality of reaction containers for performing reaction and photometry are held. A sample dispensing mechanism 1 for dispensing a sample to the table 4, a first reagent container 5 filled with a first reagent for mixing and reacting with the sample, a plurality of first reagent containers 5 The first reagent cold storage 6 for storing and cooling, the first reagent dispensing mechanism 7 for dispensing the reagent from the first reagent container 5 to the reaction table 4, and the second reagent for performing the reaction Second reagent dispensing mechanism for dispensing reagent from the second reagent container 8 to the reaction table 4, a reagent container 8 that is filled, a plurality of reagent containers 8 that are stored and a second reagent cold storage 9 for performing cold insulation 10. Reacting sample and reagent on reaction table 4 Consisting photometric unit 11 for metering the focus fluid. The operation control of each table and mechanism is performed by a control device including a computer (not shown).

  FIG. 2 shows an example of a reagent cool box and a reagent disk implemented in the present invention. A holding shaft 13 for holding the reagent disk A15 or the reagent disk B18 having a different shape depending on the reagent attribute is disposed on the central axis of the reagent cold storage A12 that cools the reagent container. A part of the holding shaft 13 is provided with a discriminating section 14 for detecting the reagent disk A15 or the reagent disk B18 with a mechanical switch or an optical / electrical sensor and discriminating the type of the reagent disk. The reagent disk A15 and the reagent disk B18 are different in the shape of the disk fixing unit 16. For example, in the reagent disk A15, a notch shape is arranged in the disk determination unit 17 corresponding to the determination unit 14 provided in the reagent cool box 12.

  The reagent disk A15 and the reagent disk B18 differ in the shape of the reagent container holding unit 20 depending on the attribute of the corresponding reagent. For example, the analysis parameters of the arranged reagent are fixed reagents determined by the supplier. In some cases, the reagent container of the dedicated reagent can be arranged only on the reagent disk A15 depending on its shape, and the reagent disk B18 cannot be arranged on the reagent disk B18. In addition, a general-purpose reagent container filled with a general-purpose reagent that is filled with an arbitrary reagent and an operator inputs parameters to perform analysis cannot be placed on the reagent disk A15 due to the shape of the container. The shape is such that it can be placed on the reagent disk B18. Thereby, when the reagent disk A15 or the reagent disk B18 is arranged in the automatic analyzer, the reagent disk can be discriminated by the discriminating unit 14 and the disc discriminating unit 17 or the disc discriminating unit 19 arranged in the reagent cold box A12. This enables the system to automatically determine the attributes of the arranged reagent.

  From the result of determining the reagent attributes arranged in the automatic analyzer, the system of the automatic analyzer automatically switches the screen displayed on the operation screen, the contents, selection items, and the like. For example, if the reagent is a dedicated reagent, the analysis parameter is a barcode or RFID of the reagent container. If the analyzer has a communication function with the outside, the analysis parameter is downloaded from the reagent supplier, etc. Is obtained. For this reason, the operator does not need to input analysis parameters from the screen, and does not need to display the analysis parameter input screen. For this reason, a screen that transits to the analysis parameter input screen is not displayed on the screen of the system, and a screen that displays a list of analysis parameters can be selected instead. For the same reason, the system determines the calibration parameter input screen, carryover avoidance setting screen, reagent expiration date display screen, and the like from the type of reagent disk, and the screen setting is automatically performed.

  Although the example which has arrange | positioned the discrimination | determination part 14 on the holding shaft 13 of the cool box 12 was shown in FIG. 2, it is not restricted to this form, Another example of discrimination is shown in FIG. In the reagent disk C31, a barcode label or RFID 32 in which the attribute information of the reagent disk is written is arranged on the side surface of the disk, and is read by the barcode reader or RFID reader 34 arranged on the side surface of the cold storage 33. It may be a form for discriminating attributes. By using the barcode reader or RFID reader in common with the reader for reading the barcode or RFID arranged in the reagent bottle, it is possible to reduce the size and the number of parts.

  In the embodiment, the description has been given with the reagent disk of the turntable having the rotation axis. However, the disk does not necessarily have a disk shape. For example, it is a rectangular reagent bottle holding mechanism and is installed in a reagent cooler having no drive mechanism. It doesn't matter. The reagent cooler has a mechanism for detecting the type of reagent bottle holding mechanism, and prepares a plurality of types of rectangular reagent holding mechanisms, and has a shape that can be discriminated by the type of reagent, or a barcode and RFID. . The reagent dispensing mechanism is not limited to a rotating system, but is a dispensing mechanism based on an XY mechanism, and a configuration in which dispensing is performed corresponding to a rectangular reagent holding mechanism is conceivable.

Schematic which shows one Example of an automatic analyzer. An example of a reagent disk. An example of reagent disk discrimination.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sample dispensing mechanism 2 Sample disc 3 Sample container 4 Reaction table 5 1st reagent container 6 1st reagent cold storage 7 1st reagent dispensing mechanism 8 2nd reagent container 9 2nd reagent cold storage 10 2nd reagent dispensing mechanism 11 Measuring Unit 12 Cold Storage A
13 Holding shaft 14 Discriminating unit 15 Reagent disc A
16 Disc fixing portion 17 Disc A discriminating portion 18 Reagent disc B
19 Disc B discriminating unit 20 Reagent container holding unit 31 Reagent disc C
32 Barcode or RFID
33 Cold storage B
34 Bar code reader or RFID reader

Claims (7)

In an automatic analyzer equipped with a reagent disk capable of mounting a plurality of reagent containers holding reagents,
Has multiple types of reagent discs corresponding to the type of reagent container to be placed,
An automatic analyzer comprising identification means for identifying the type of the reagent disk. The automatic analyzer according to claim 1, wherein
An automatic analyzer comprising control means for controlling to change the type of display screen relating to reagent parameters based on the identification result of the identification means. The automatic analyzer according to claim 2,
The automatic analyzer is characterized in that the type of the display screen is switching between display / non-display of a parameter input screen or a selection item screen. The automatic analyzer according to claim 1, wherein
2. The automatic analyzer according to claim 1, wherein the plurality of types of reagent disks have a shape that cannot be placed except for corresponding types of reagent containers. The automatic analyzer according to claim 1, wherein
The automatic analyzer according to claim 1, wherein the identification means identifies an identification tag attached to the reagent disk. The automatic analyzer according to claim 1, wherein
The automatic analysis apparatus, wherein the identification tag is either a barcode or a wireless IC tag. The automatic analyzer according to claim 1, wherein
The automatic analyzer according to claim 1, wherein the identification means is means for optically reading at least a part of the geometric shape of the reagent disk.

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