AUTOMATIC ANALYSIS DEVICE AND REAGENT AMOUNT DISPLAY METHOD

The automatic analysis device of the invention includes a history information storage unit configured to store history information related to a previously conducted analysis, a number-of-analyses calculation unit configured to calculate a number of analyses per unit for each analysis item from the history information, a classification/storage unit configured to classify and store the number of analyses per unit by day of the week, a reagent remaining amount detection unit configured to detect a reagent remaining amount, a conversion unit configured to read each number of analyses per unit over a predetermined period corresponding to a day of a week of an analysis implementation date from the classification/storage unit and convert the read each number of analyses per unit into a reagent usage amount, and a display device configured to arrange and display information associated with the reagent usage amount and the reagent remaining amount for each reagent.

TECHNICAL FIELD

The present invention relates to an automatic analysis device including a reaction unit that holds a reaction vessel into which a sample collected from a person such as blood or urine is dispensed, and a reagent supply unit that supplies a reagent, and obtaining measurement information with regard to a predetermined analysis item by measuring a test liquid obtained by mixing and reacting the sample and the reagent supplied from the reagent supply unit to the reaction vessel, and a reagent amount display method in the automatic analysis device.

BACKGROUND ART

Various forms have conventionally been known as an automatic analysis device capable of obtaining measurement information with regard to various analysis items by measuring a test liquid obtained by mixing and reacting a biological sample such as blood or urine with various reagents, such as a blood coagulation analysis device and an analysis device using immunoassay. For example, a sample as a biological sample is dispensed from a sample vessel to a reaction vessel, and a reagent corresponding to an analysis item is mixed with the dispensed sample to perform various measurements and analyses (for example, see Patent Document 1).

CITATION LIST

Patent Document

Patent Document 1: JP 2015-057614 A

SUMMARY OF THE INVENTION

Problem to be Solved by the Invention

Incidentally, in analyses conducted at actual testing sites (hospitals, testing centers, etc.), the number of measurements for each analysis item varies depending on the day of the week, and in general testing sites, there is a certain tendency in the number of measurements depending on the day of the week. An operator who is familiar with such trends can set the appropriate amount of reagent in the reagent supply unit depending on the day of the week. However, an inexperienced operator cannot know the number of measurements for each day of the week, and thus does not know the optimal amount of reagent to be preset in the automatic analysis device before starting analysis. Therefore, when the amount of reagent provided in the automatic analysis device is insufficient, the reagent runs out during analysis to force the analysis to be interrupted, thereby causing inconvenience such as wasting the sample being analyzed. Further, to avoid such a situation, it is conceivable to set a reagent in the automatic analysis device with a considerable margin. However, in this case, even on days of the week when the number of analyses tends to be small, a large number of reagents are set, which frequently results in surplus reagents. Once a normal reagent is opened, a period of use from that time point on is limited, which can be said to be inefficient reagent operation.

The invention has been made with attention to the above-mentioned problems, and an object of the invention is to provide an automatic analysis device and a reagent amount display method capable of setting an appropriate amount of reagent at all times regardless of a skill level of an operator.

Means for Solving Problem

To achieve the above objects, the invention is an automatic analysis device including a reaction unit configured to hold a reaction vessel into which a sample collected from a person such as blood or urine is dispensed, and a reagent supply unit configured to supply a reagent, and obtaining measurement information with regard to a predetermined analysis item by measuring a test liquid obtained by mixing and reacting the reagent supplied from the reagent supply unit to the reaction vessel with the sample, the automatic analysis device including a history information storage unit configured to store history information related to a previously conducted analysis, a number-of-analyses calculation unit configured to calculate a number of analyses per unit, the number of analyses per unit being a number of analyses per day on each analysis day, for each analysis item from the history information stored in the history information storage unit, a classification/storage unit configured to classify the number of analyses per unit calculated by the number-of-analyses calculation unit for each day of a week and store the number of analyses per unit, a reagent remaining amount detection unit configured to detect a current remaining amount of each reagent in the reagent supply unit, a conversion unit configured to read each number of analyses per unit over a predetermined period corresponding to a day of a week of an analysis implementation date from the classification/storage unit and convert the read each number of analyses per unit into a reagent usage amount with regard to each reagent used for the analysis for each analysis item, and a display unit configured to arrange and display information associated with each reagent usage amount converted by the conversion unit and a remaining amount of each reagent detected by the reagent remaining amount detection unit for each reagent.

In addition, the invention is a reagent amount display method in an automatic analysis device including a reaction unit configured to hold a reaction vessel into which a sample collected from a person such as blood or urine is dispensed, and a reagent supply unit configured to supply a reagent, and obtaining measurement information with regard to a predetermined analysis item by measuring a test liquid obtained by mixing and reacting the reagent supplied from the reagent supply unit to the reaction vessel with the sample, the method including a history information storage step of storing history information related to a previously conducted analysis, a number-of-analyses calculation step of calculating a number of analyses per unit, the number of analyses per unit being a number of analyses per day on each analysis day, for each analysis item from the history information stored in the history information storage step, a classification/storage step of classifying the number of analyses per unit calculated in the number-of-analyses calculation step for each day of a week and storing the number of analyses per unit in a storage unit, a reagent remaining amount detection step of detecting a current remaining amount of each reagent in the reagent supply unit, a conversion step of reading each number of analyses per unit over a predetermined period corresponding to a day of a week of an analysis implementation date from the classification/storage unit and converting the read each number of analyses per unit into a reagent usage amount with regard to each reagent used for the analysis for each analysis item, and a display step of arranging and displaying information associated with each reagent usage amount converted by the conversion step and a remaining amount of each reagent detected by the reagent remaining amount detection step for each reagent.

According to the automatic analysis device having the above configuration and the display method, the number of analyses per unit, which is the number of analyses per day on each analysis day, is calculated for each analysis item from the history information related to the previously conducted analysis, the calculated number of analyses per unit is classified by day of the week, each number of analyses per unit over the predetermined period corresponding to the day of the week of the implementation analysis date is converted into the reagent usage amount with regard to each reagent used for the analysis for each analysis item, and information related to the converted each reagent usage amount and the current remaining amount of each reagent in the reagent supply unit is arranged and displayed for each reagent. Therefore, according to this display, even an inexperienced operator easily understands a difference between the estimated (or required) reagent amount necessary on the day (day of the week) and the reagent amount previously provided in the automatic analysis device. Therefore, an appropriate amount of reagent can be maintained at all times by replenishment with at least the reagent of the amount corresponding to the difference before starting to analyze the analysis implementation date. For this reason, it is possible to avoid inconvenience of running out of reagent during analysis to force the analysis to be interrupted, thereby causing such as wasting the sample being analyzed. Further, such a display mode using the automatic analysis device itself eliminates the need for the automatic analysis device to be connected to a central management system that can accumulate and calculate analysis data, and is effective in facilities where there are few skilled laboratory technicians.

In addition, based on such parallel display of the information associated with the reagent usage amount and the reagent remaining amount, the operator only needs to perform replenishment with the minimum amount of reagent required before starting the analysis on the analysis implementation date, and thus there is no need to set a reagent in the automatic analysis device with a considerable margin. Therefore, it is also possible to avoid inefficient reagent operation due to the above-mentioned restriction on the reagent usage period resulting from excess reagent.

Effect of the Invention

According to the invention, it is possible to provide an automatic analysis device and a reagent amount display method capable of setting an appropriate amount of reagent at all times regardless of a skill level of an operator.

MODE(S) FOR CARRYING OUT THE INVENTION

FIG.1is a schematic overall external view of an automatic analysis device of this embodiment, andFIG.2is a block diagram illustrating a schematic internal configuration of the automatic analysis device ofFIG.1. As illustrated inFIG.2, the automatic analysis device1of this embodiment includes a reaction unit40that holds a reaction vessel54into which a sample collected from a person such as blood or urine is dispensed, and a reagent supply unit70that supplies a reagent in a reagent vessel74to the reaction vessel54, and obtains measurement information with regard to a predetermined analysis item (test item) by reacting the reagent supplied from the reagent supply unit70to the reaction vessel54with the sample to measure a reaction progress (measure a progress of a test liquid obtained by mixing and reacting the reagent with the sample).

Specifically, the automatic analysis device1of this embodiment has an outer frame formed by a casing100, and is configured by forming a sample processing space in an upper part in the casing100(seeFIG.1).

As clearly illustrated inFIG.2, the automatic analysis device1includes a control unit10, a measurement unit30and a display/operation unit. In this embodiment, for example, a touchscreen190is provided as the display/operation unit.

The control unit10controls the entire operation of the automatic analysis device1. The control unit10includes, for example, a personal computer (PC). The control unit10includes a Central Processing Unit (CPU)12, a Random Access Memory (RAM)14, a Read Only Memory (ROM)16, a storage18, and a communication interface (I/F)20, which are connected to each other via a bus line22. The CPU12performs various signal processing, etc. The RAM14functions as a main storage device of the CPU12. For example, a Dynamic RAM (DRAM), a Static RAM (SRAM), etc. can be used as the RAM14. The ROM16records various startup programs, etc.

For example, a hard disk drive (HDD), a solid state drive (SSD), etc. can be used as the storage18. Various information such as programs and parameters used by the CPU12are recorded in the storage18. Furthermore, data acquired by the measurement unit30is recorded in the storage18. The RAM14and the storage18are not limited thereto, and may be replaced with various storage devices. The control unit10communicates with external devices such as the measurement unit30and the touchscreen190via the communication I/F20.

The touchscreen190includes a display device192as a display unit and, for example, a touch panel194as an operation unit. The display device192may include, for example, a liquid crystal display (LCD) or an organic EL display. The display device192displays various screens under the control of the control unit10. This screen may include various screens, such as a display screen related to reagent amount, which will be described later, an operation screen of the automatic analysis device1, a screen showing measurement results, and a screen showing analysis results. The touch panel194is provided above the display device192. The touch panel194acquires input from a user and transmits obtained input information to the control unit10.

The control unit10may be connected to other devices such as a printer, a handy code reader, and a host computer via the communication I/F20.

The measurement unit30includes a control circuit42, a data processing circuit44, a constant-temperature bath52, the reaction vessel54, a light source62, a scattered light detector64, a transmitted light detector66, a sample vessel72, the reagent vessel74, a sample probe76, and a reagent probe78. In this embodiment, as an example, the reaction vessel54, the scattered light detector64, and the transmitted light detector66are provided in the constant-temperature bath52. However, the invention is not limited to such an arrangement form.

The control circuit42controls operations of respective parts of the measurement unit30based on commands from the control unit10. Although not illustrated, the control circuit42is connected to the data processing circuit44, the constant-temperature bath52, the light source62, the scattered light detector64, the transmitted light detector66, the sample probe76, the reagent probe78, etc., and controls operations of respective parts.

The data processing circuit44is connected to the scattered light detector64and the transmitted light detector66, and acquires detection results from the scattered light detector64and the transmitted light detector66. The data processing circuit44performs various processing on the acquired detection results and outputs processing results. The processing performed by the data processing circuit44may include, for example, A/D conversion processing for changing a format of data output from the scattered light detector64and the transmitted light detector66into a format that can be processed by the control unit10.

The control circuit42and the data processing circuit44may include, for example, a CPU, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), etc. The control circuit42and the data processing circuit44may each be configured by one integrated circuit, etc., or may be configured by combining a plurality of integrated circuits, etc. Furthermore, the control circuit42and the data processing circuit44may be configured by one integrated circuit, etc. For example, operations of the control circuit42and the data processing circuit44may be performed according to a program recorded in a storage device or a recording area in the circuit.

For example, a sample obtained from blood collected from a patient is accommodated in the sample vessel72. Various reagents used for measurement are accommodated in the reagent vessel74. Any number of sample vessels72and reagent vessels74may be provided. Since there is usually a plurality of types of reagents used for analysis, there is generally a plurality of reagent vessels74. The sample probe76dispenses the sample accommodated in the sample vessel72into the reaction vessel54under the control of the control circuit42. The reagent probe78dispenses the reagent accommodated in the reagent vessel74into the reaction vessel54under the control of the control circuit42. The number of sample probes76and reagent probes78may be any number.

The constant-temperature bath52maintains a temperature of the reaction vessel54at a predetermined temperature under the control of the control circuit42. In the reaction vessel54, a mixed liquid obtained by mixing the sample dispensed by the sample probe76and the reagent dispensed by the reagent probe78reacts. Note that there may be any number of reaction vessels54.

The light source62radiates light of a predetermined wavelength under the control of the control circuit42. The light source62may be configured to radiate light having different wavelengths depending on the measurement condition. Therefore, the light source62may include a plurality of light source elements. Light radiated from the light source62is guided by, for example, an optical fiber, and is radiated onto the reaction vessel54. A part of light radiated onto the reaction vessel54is scattered and another part thereof penetrates depending on the reaction process state of the mixed liquid in the reaction vessel54. The scattered light detector64detects light scattered by the reaction vessel54.

The transmitted light detector66detects light transmitted through the reaction vessel54. The data processing circuit44processes information on the amount of scattered light detected by the scattered light detector64and information on the amount of transmitted light detected by the transmitted light detector66. Either the scattered light detector64or the transmitted light detector66may operate depending on the measurement condition. Therefore, the data processing circuit44may process either the information on the amount of scattered light detected by the scattered light detector64or the information on the amount of transmitted light detected by the transmitted light detector66, depending on the measurement condition. The data processing circuit44transmits processed data to the control unit10. Note that, even though the measurement unit30illustrated inFIG.2includes two detectors of the scattered light detector64and the transmitted light detector66, the measurement unit30may include only one of the detectors.

The control unit10performs various calculations based on data acquired from the measurement unit30. The calculations include calculation of the reaction amount of the mixed liquid, quantitative calculation of the substance amount and an activity value of a substance to be measured in a test object based on the reaction amount, etc. The data processing circuit44may perform some or all of these calculations.

Note that, here, a case in which a PC that controls an operation of the measurement unit30and a PC that performs data calculation and quantitative calculation are the same control unit10is illustrated. However, these PCs may be separate units. In other words, the PC that performs data calculation and quantitative calculation may exist as each.

Next, an example of each of a configuration for realizing a reagent amount display method and a reagent amount display method procedure according to an embodiment of the invention will be described with reference toFIGS.3and4.

As illustrated inFIG.3, the automatic analysis device1of this embodiment includes a history information storage unit80that stores history information related to a previously conducted analysis and is transmitted from the measurement unit30via the communication I/F20, a number-of-analyses calculation unit81that calculates the number of analyses per unit, which is the number of analyses per day on each analysis day, for each analysis item from the history information stored in the history information storage unit80, a classification/storage unit82that classifies the number of analyses per unit calculated by the number-of-analyses calculation unit81by day of the week and stores the number of analyses per unit, a reagent remaining amount detection unit83that detects the current remaining amount of each reagent in the above-mentioned reagent supply unit70, a conversion unit84that reads each number of analyses per unit over a predetermined period corresponding to a day of the week of an analysis implementation date from the classification/storage unit82and converts the read each number of analyses per unit into the reagent usage amount with regard to each reagent used for the analysis for each analysis item, and a necessary reagent amount calculation unit85that calculates a necessary reagent amount with which the reagent supply unit70is replenished based on the remaining amount of the reagent detected by the reagent remaining amount detection unit83and the reagent usage amount converted by the conversion unit84.

Among these components, at least the history information storage unit80, the number-of-analyses calculation unit81, the classification/storage unit82, the conversion unit84, and the necessary reagent amount calculation unit85are included in the control unit10. In particular, in this embodiment, the history information storage unit80and the classification/storage unit82may be configured by the RAM14and/or the storage18, and the number-of-analyses calculation unit81, the conversion unit84, and the necessary reagent amount calculation unit85may be configured by the CPU12.

In addition, data related to the reagent remaining amount detected by the reagent remaining amount detection unit83, data related to the reagent usage amount converted by the conversion unit84, and data related to the necessary reagent amount calculated by the necessary reagent amount calculation unit85are transmitted to the display device192of the touchscreen190without change or by being converted into related data (this conversion may previously be performed by the conversion unit84, or the number of analyses per unit may be directly converted into data related to the reagent usage amount without the conversion unit84performing conversion), and the display device192arranges and displays information associated with the reagent usage amount, the reagent remaining amount, and the necessary reagent amount for each reagent (analysis item) as described later.

Further, the data related to the reagent remaining amount detected by the reagent remaining amount detection unit83and the data related to the reagent usage amount converted by the conversion unit84are further transmitted to a notification unit89, and when the remaining amount of each reagent detected by the reagent remaining amount detection unit83is smaller than each reagent usage amount converted by the conversion unit84, the notification unit89notifies this information.

In addition, the automatic analysis device1of this embodiment includes a period selection unit86for selecting the predetermined period (predetermined period corresponding to the day of the week of the analysis implementation date) of the number of analyses per unit to be read by the conversion unit84from the classification/storage unit82, and an analysis item input unit87for inputting an analysis item to be executed by the measurement unit30. In this case, the period selection unit86and the analysis item input unit87are configured by, for example, the touch panel194of the touchscreen190in this embodiment.

In addition, when information related to the reagent amount is displayed based on such a configuration, first, the premise is that history information related to a previously conducted analysis is stored in the history information storage unit80(history information storage step S1ofFIG.4). Then, automatically when the power of the automatic analysis device1is turned on, or based on predetermined input through the touch panel194, the number-of-analyses calculation unit81of the CPU12calculates the number of analyses per unit, which is the number of analyses per day on each analysis day, for each analysis item from the history information stored in the history information storage unit80(in history information storage step S1) (number-of-analyses calculation step S2ofFIG.4).

Thereafter, the classification/storage unit82of the CPU12classifies and stores the number of analyses per unit calculated in the number-of-analyses calculation unit81(number-of-analyses calculation step S2) by day of the week (classification storage step S3ofFIG.4). During this time or subsequently, the reagent remaining amount detection unit83detects the current remaining amount of each reagent in the reagent supply unit70(reagent remaining amount detection step S4ofFIG.4), and an operator selects the predetermined period of the number of analyses per unit to be read by the conversion unit84from the classification/storage unit82through the period selection unit86of the touch panel194(the predetermined period can be set arbitrarily or from selectable units such as 1 week, 1 month, and 3 months), and inputs an analysis item to be executed by the measurement unit30through the analysis item input unit87of the touch panel194(period selection/analysis item input step S5ofFIG.4).

Then, the conversion unit84of the CPU12reads each number of analyses per unit over the predetermined period corresponding to the day of the week of the analysis implementation date from the classification/storage unit82, and converts the read each number of analyses per unit into the reagent usage amount with regard to each reagent used for the analysis for each analysis item (conversion step S6ofFIG.4). Thereafter, the necessary reagent amount calculation unit85calculates the necessary reagent amount with which the reagent supply unit70is replenished based on the remaining amount of the reagent detected by the reagent remaining amount detection unit83and the reagent usage amount converted by the conversion unit84(necessary reagent amount calculation step S7ofFIG.4).

In this way, the data related to the reagent remaining amount detected by the reagent remaining amount detection unit83, the data related to the reagent usage amount converted by the conversion unit84, and the data related to the necessary reagent amount calculated by the necessary reagent amount calculation unit85are transmitted to the display device192of the touchscreen190, and the display device192arranges and displays reagent amount-associated information including data associated with the reagent usage amount, the reagent remaining amount, and the necessary reagent amount for each reagent (analysis item) (display step S8ofFIG.4).

In addition, especially in this embodiment, along with this display or independently of the display, the notification unit89or the CPU12that controls the notification unit89determines whether or not the remaining amount of each reagent detected by the reagent remaining amount detection unit83(reagent remaining amount detection step S4) is smaller than each reagent usage amount converted by the conversion unit (conversion step) (step S9ofFIG.4), and when the remaining amount of the reagent is smaller than the converted reagent usage amount, the notification unit89notifies this information (notification step S10ofFIG.4).

FIG.5illustrates an example of a display mode of the reagent amount-associated information by the display device192. As illustrated in the figure, in this display, the day of the week “today”101(analysis implementation date; Monday on this screen) selected through the touch panel194including the period selection unit86, a period average 102 (predetermined period (predetermined period corresponding to the day of the week of the analysis implementation date) of the number of analyses per unit to be read by the conversion unit84from the classification/storage unit82; in this screen, 4 weeks), and a sample type103(in this screen, patient sample (S) and QC (quality control) sample (Q)) are displayed at the top of the screen.

In addition, information associated with the reagent usage amount converted by the conversion unit84, here, the “number of measurements” for each day of the week (in this example where both the patient sample and the QC sample are selected, the average number of measurements obtained by summing the patient sample and the QC sample), and the number of measurements per reagent vessel “number/unit” is arranged and displayed in a main area105of a display screen for each analysis item (or reagent; in this screen, analysis items A to J). In this display example, the analysis items A to J input through the analysis item input unit87are displayed in a vertical column on the display screen, and the “number of measurements”, etc. for each day of the week are displayed in a horizontal column. It is obvious that the measurement amount (mL) may be displayed instead of the number of measurements.

As described above, the display device192arranges and displays information associated with each reagent usage amount converted by the conversion unit84and the remaining amount of each reagent detected by the reagent remaining amount detection unit83for each reagent (analysis item) with regard only to an analysis item input by the analysis item input unit87. However, display may be performed with regard to an analysis item other than the analysis item input by the analysis item input unit87.

Further, in this display example, with regard to the selected day of the week “Today” (Monday on this screen), not only the “number of measurements” but also information associated with the current remaining amount of each reagent in the reagent supply unit (reagent storage)70, here, the number of remaining measurements of the reagent installed in the reagent storage (when the number of remaining measurements is different in a 2-reagent system that uses two reagents for one analysis item, the smaller number of remaining measurements) “reagent storage” and the “defective number” obtained by subtracting the number of remaining measurements from the number of measurements (“number of measurements”—“reagent storage”), and information associated with the necessary reagent amount with which the reagent supply unit (reagent storage)70is replenished, here, the number of the reagent vessels74to be replenished “the number of replenished units”, that is, the number obtained by multiplying the “defective number” by “number/unit” (the quotient is rounded up) are further displayed. When replenished with the reagent, the latest reagent amount state after replenishment may be automatically updated and displayed.

Further, in this display example, an information item associated with the selected day of the week (Monday in this screen) is shaded or colored so as to be visually distinguished from other days of the week. Furthermore, when there is a shortage of reagent, that is, when a numerical value on the display screen is negative (−) the numerical value is visually distinguished (for example, colored in red, etc.) and displayed.

Note that, in this embodiment, the number-of-analyses calculation unit81calculates a reanalysis frequency with regard to each reagent used for the analysis for each analysis item, and the display device192may display information on the reanalysis frequency. In addition, the necessary reagent amount calculation unit85preferably calculates the necessary reagent amount only for the analysis item input by the analysis item input unit87as an analysis item necessary for an analysis of the day at a calculation time point, so that calculation processing can be reduced.

Further, the classification/storage unit82may classify the number of analyses per unit as the number of calibrator measurements, the number of accuracy management sample measurements, the number of initial tests, the number of retests, and the total number thereof and store the number of analyses per unit. In this case, the conversion unit84converts each of the number of calibrator measurements, the number of accuracy management sample measurements, the number of initial tests, the number of retests, and the total number thereof read from the classification/storage unit82into the reagent usage amount with regard to each reagent used for the analysis for each analysis item. Further, with regard thereto, the number-of-analyses calculation unit81may calculate the number of analyses per unit by subtracting the number of calibrator measurements and/or the number of accuracy management sample measurements from the analysis item.

An example of a display screen including the number of calibrator measurements is illustrated inFIG.6. As illustrated in the figure, in this display example, Tuesday is selected as the day of the week “today”101indicating the analysis implementation date. Therefore, as not only “the number of measurements” but also the number of remaining measurements of the reagent “reagent storage”, the “defective number”, and the “number of replenished units” are further displayed with regard only to Tuesday, and patient sample (S), QC sample (Q), and calibrator (C) are selected as the sample type103, the number of calibrator measurements “number of CAL measurements”107, that is, the number of measurements necessary for calibration is newly displayed in the main area105of the display screen in addition to the information item described with regard toFIG.5.

FIG.7illustrates a first modification of the display mode ofFIG.5. As illustrated in the figure, in this display example, the “number after replenishment”108which is the number of measurements when replenished with the reagent according to the “number of replenished units” and the “remaining number”109which is the number of measurements remaining when replenished with the reagent in this way are newly displayed in addition to the information item described with regard toFIG.5. In addition,FIG.8illustrates a second modification of the display mode ofFIG.5. As illustrated in the figure, in this display example, a maximum value on the same day of the week (here, Monday as inFIG.5) within the selected predetermined period is displayed as the “number of measurements.” Therefore, numerical values of the “defective number” and the “number of replenished units” are increased when compared toFIG.5.

As described above, according to this embodiment, the number of analyses per unit, which is the number of analyses per day on each analysis day, is calculated for each analysis item from the history information related to the previously conducted analysis, the calculated number of analyses per unit is classified by day of the week, each number of analyses per unit over the predetermined period corresponding to the day of the week of the implementation analysis date is converted into the reagent usage amount with regard to each reagent used for the analysis for each analysis item, and information related to the converted each reagent usage amount and the current remaining amount of each reagent in the reagent supply unit70is arranged and displayed for each reagent. Therefore, according to this display, even an inexperienced operator easily understands a difference between the estimated (or required) reagent amount necessary on the day (day of the week) and the reagent amount previously provided in the automatic analysis device1. Therefore, an appropriate amount of reagent can be maintained at all times by replenishment with at least the reagent of the amount corresponding to the difference before starting to analyze the analysis implementation date. For this reason, it is possible to avoid inconvenience of running out of reagent during analysis to force the analysis to be interrupted, thereby causing such as wasting the sample being analyzed.