CN107796949B

CN107796949B - Automatic analyzer

Info

Publication number: CN107796949B
Application number: CN201710677027.8A
Authority: CN
Inventors: 稻木大
Original assignee: Hitachi High Technologies Corp
Current assignee: Hitachi High Tech Corp
Priority date: 2016-09-06
Filing date: 2017-08-09
Publication date: 2021-03-16
Anticipated expiration: 2037-08-09
Also published as: JP6815794B2; CN107796949A; JP2018040621A

Abstract

The invention provides an automatic analysis device which can easily grasp the priority of a plurality of maintenance and the time required for each maintenance and can display the maintenance considering the analysis action. Information on maintenance items classified for each cycle is displayed on a maintenance screen (1801). The remaining effective period (%) is displayed as a percentage for each maintenance item (202). The remaining effective period (%) in the maintenance screen (1801) is displayed with a number and a bar. Since the remaining term of maintenance for each maintenance item is displayed, the priority (urgency) of maintenance can be visually understood, and since the required time is also displayed for each maintenance item, the user can contribute to planning of the maintenance schedule according to the operation schedule of the automatic analyzer based on the information.

Description

Automatic analyzer

Technical Field

The present invention relates to an automatic analyzer for performing qualitative and quantitative analyses of biological samples such as blood and urine.

Background

An automatic analyzer that mixes a sample containing a component to be measured with a reagent adjusted for each component to be measured and analyzes the mixture includes a reaction container for mixing the sample with the reagent, a sample dispensing probe for adding the sample and the reagent to the reaction container, a reagent dispensing probe, and a stirring mechanism for stirring a mixed liquid. In such an automatic analyzer, the reaction vessel is generally used for another analysis after being cleaned, and the dispensing probe is also used for cleaning the nozzle before dispensing a different sample or reagent.

The automatic analyzer has a function of performing such cleaning of the reaction vessel, nozzle cleaning, and the like, and performing maintenance operation necessary for the next analysis. Since the analysis operation cannot be performed during the maintenance operation, it is necessary to perform a planned maintenance in order to comply with the analysis schedule.

Patent document 1 describes a technique for easily and at a glance recognizing the history of maintenance of a sample analyzer, in which maintenance items and schedules to be periodically performed daily, weekly, monthly, and the like are displayed in a calendar format, and the contents of whether or not each maintenance is performed are displayed. Further, for the aperiodic maintenance item, the execution history and the predetermined content are displayed in characters.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2008-51543

However, patent document 1 is only configured such that, when the content of performing maintenance is input to the maintenance screen described in patent document 1, the maintenance record is updated and the display of the screen is updated so as to show the already performed display, so that the operation of the apparatus and the performance of maintenance can be performed in association with each other.

In this way, since the display is performed in the calendar format, the user can grasp that the maintenance deadline date is approaching, but it is difficult to grasp the priority order of a plurality of maintenance items easily with the screen, and the time required to perform each maintenance is unclear, and it is difficult to grasp the relationship with the operating time of the automatic analyzer and to perform effective maintenance in consideration of the analysis schedule of the automatic analyzer.

Disclosure of Invention

An object of the present invention is to provide an automatic analyzer capable of displaying maintenance in consideration of analysis operations while easily grasping the priority of a plurality of maintenance operations and the time required for each maintenance operation.

In order to achieve the above object, the present invention has the following structure.

An automatic analyzer comprises: an analysis unit that analyzes a sample; a memory for storing at least a plurality of maintenance items related to the analysis unit, a final execution time date of each of the maintenance items, a recommended execution period of each of the maintenance items, and a required time required for performing each of the maintenance items; a calculation control unit having a remaining time calculation unit for calculating a remaining time until a maintenance recommended execution time and a ratio of the remaining time to each recommended execution period for the maintenance, based on a recommended execution period and a final execution date for each maintenance item stored in the memory; and a display unit that displays, for each of the maintenance items, the remaining time calculated by the remaining time calculation unit, a ratio of the remaining time to the recommended execution period, and a required time required for performing each of the maintenance items.

The effects of the present invention are as follows.

An automatic analyzer capable of displaying maintenance in consideration of analysis operations while easily grasping the priority of a plurality of maintenance operations and the time required for each maintenance operation can be realized.

Drawings

Fig. 1 is a schematic configuration diagram of an automatic analyzer according to an embodiment of the present invention.

Fig. 2 is a diagram showing an example of a maintenance screen displayed.

Fig. 3 is a diagram showing a maintenance screen in which the maintenance screen of fig. 2 is expanded.

Fig. 4 is an additional explanatory view of the display of fig. 3.

Fig. 5 is a diagram showing a database for managing information for each maintenance item.

Fig. 6 is an algorithm for selecting a maintenance item displayed in the display area a.

Fig. 7 is an algorithm for selecting a maintenance item displayed in the display area B.

Fig. 8 is a diagram showing a maintenance detail screen 1803.

Fig. 9 is a diagram showing a maintenance details screen on a maintenance screen 1802 as a sub-screen 1804.

Fig. 10 is a diagram showing a schedule setting screen 1805 displayed when the schedule setting button is pressed.

Fig. 11 is a diagram of a schedule setting screen 1805 in which the next execution time and day is not designated.

Fig. 12 is a diagram showing an algorithm of schedule setting.

Fig. 13 is a functional block diagram in the computer 3.

In the figure: 1-specimen container, 2-specimen transport tray, 3-microcomputer, 4-interface, 5-specimen dispenser, 6-reaction container, 7-syringe pump for specimen, 8A, 8B-reagent dispensing pipette, 9-reaction bath, 10-constant temperature liquid supply section, 11-syringe pump for reagent, 12-reagent bottle, 13-stirring mechanism, 14-multi-wavelength photometer light source, 15-multi-wavelength spectroscope, 16-A/D converter, 17-reaction table, 18-CRT, 19-cleaning mechanism, 21-keyboard, 23A, 23B-bar code reader, 24-optical disk, 25-storage section, 26A, 26B-reagent tray, 27-printer, 28-bar code reader, 1801. 1802-maintenance screen, 1803-maintenance details screen, 1804-sub screen, 1805-schedule setting screen.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Examples

In fig. 1, a plurality of sample containers 1 containing samples are arranged on a sample transport tray 2. The suction/discharge nozzle of the sample dispensing mechanism 5 is connected to a syringe pump 7 for a sample. The operations of the pump 7 and the dispensing mechanism 5 are controlled by a microcomputer (arithmetic control unit) 3 that controls the operations of the respective mechanism units and calculates measurement data via an interface 4. A plurality of reaction containers 6 are arranged on a reaction table 17 rotatably provided with respect to the reaction bath 9, thereby forming a reaction line. A constant temperature liquid maintained at 37 ℃ is supplied from the constant temperature liquid supply unit 10 to the reaction bath 9.

The multiwavelength photometer has a light source 14 and a multiwavelength spectroscope 15, and a reaction stage 17 is rotatably transferred so that the row of reaction containers 6 intersects the light beam from the light source 14. The used reaction vessel 6 is cleaned by the cleaning mechanism 19 and is supplied for reuse. The stirring mechanism 13 mixes the sample added to the reaction container 6 and the reagent solution corresponding to the analysis item. The measurement signal of the reaction solution obtained by the multi-wavelength spectrometer 15 is converted from an analog signal to a digital signal by the a/D converter 16, and is input to the microcomputer 3.

A plurality of types of reagent bottles 12 corresponding to each analysis item are provided on the first reagent disk 26A and the second reagent disk 26B along the circumference. That is, the

reagent disks

26A and 26B are reagent bottle accommodating portions that can be selectively rotated. A barcode reader 23A is disposed near the tray 26A, and a barcode reader 23B is disposed near the tray 26B. The reagent dispenser includes

reagent dispensing pipettes

8A and 8B and a reagent syringe pump 11. These

pipettes

8A and 8B suck a predetermined amount of the reagent solution in the reagent bottle 12 stopped at the suction position and hold the reagent solution in the suction/discharge nozzles, rotate the suction/discharge nozzles in the reaction container row, and discharge the held reagent solution to the reaction container 6 stopped at the reagent receiving position. The reagent solution dispensed at this time is a reagent solution of a type corresponding to the analysis item dispensed in each reaction vessel.

An analysis unit for a sample is formed by a sample transport tray 2, a reaction vessel 6, a pump 7,

reagent dispensing pipettes

8A and 8B, a reagent syringe pump 11, a dispensing mechanism 5, a reaction bath 9, a constant temperature liquid supply unit 10, a stirring mechanism 13, a light source 14, a reaction table 17, a cleaning mechanism 19, barcode reading devices 23A and 23B,

reagent trays

26A and 26B, a multi-wavelength spectrometer 15, a microcomputer 3, and the like.

A reagent barcode label on which a barcode is printed is attached to the outer wall of each reagent bottle 12. The information displayed as the barcode is, for example, a reagent bottle code unique to each bottle formed by a serial number, a size of the bottle, a valid period of the reagent solution, a reagent dispensing order indicating whether the reagent is the first reagent, the second reagent, or the third reagent, a maximum analyzable number of the reagent solution, a reagent dispensing amount indicating a dispensing usage amount of one time, a production lot number, and the like.

The reagent information read by the barcode reading devices 23A and 23B from the respective reagent bottles 12 is stored in the storage unit (memory) 25 or the corresponding storage area of the microcomputer 3. When reagent bottles 12 are accommodated in the

reagent trays

26A and 26B, the reagent information is read by the barcode reading devices 23A and 23B, and at this time, information indicating the mounting positions of the respective reagent bottles is output by the rotation angle detection units provided on the

respective reagent trays

26A and 26B and is input to the microcomputer 3 via the interface 4. The reagent information and the bottle mounting position are stored in a corresponding manner to the analysis items.

The operator can input various kinds of information using the screen of the CRT (display unit) 18 and the keyboard 21. The measurement results of the analysis items can be displayed on the printer 27 and the CRT 18. The information on the optical recording medium (optical disk) 24 is read by the reading device and stored in the storage unit 25 or a corresponding storage area of the microcomputer 3. The information stored in the optical recording medium 24 is, for example, the following information. That is, the analysis item code displayed in five digits, the parameters commonly used for the analysis items, and the parameters stored for each reagent bottle, and the like. The parameters commonly used in the analysis items include a wavelength used in a photometer, a sample amount, a calibration method, a standard solution concentration, the number of standard solutions, a check threshold value for an analysis abnormality, and the like. The parameters for each reagent bottle include the type of reagent, the reagent dispensing order, the reagent bottle code, the reagent solution volume, the reagent dispensing amount, the maximum analyzable number, and the date and year of reagent production.

The storage unit 25 stores information read from the optical recording medium 24, and also stores operating conditions of each mechanism unit of the automatic analyzer, analysis parameters of each analysis item, determination logic for performing bottle management of each reagent, the maximum number of analyzable times read from a reagent bottle, analysis results, and the like. The reagent information is provided by an optical recording medium provided by the manufacturer at the time of delivery of the reagent bottle. When the reagent information is not prepared using the optical recording medium, the operator may input the information stored on the visual confirmation sheet attached to the reagent bottle to the automatic analyzer using the screen of the CRT18 and the keyboard 21.

A sample barcode label on which a barcode is printed is attached to the outer wall of the sample container 1. The information displayed by the barcode is, for example, a specimen identification number that uniquely identifies the specimen. This number is read by the barcode reading device 28, and the correspondence between the sample position and the sample identification number is recognized by detecting the angle of the sample transport tray 2. On the other hand, since the analysis items corresponding to the specimen identification number are previously input and stored by the keyboard 21 and the CRT18, when the barcode is read in the past, the specimen position and the specimen identification number are stored in association with the analysis items. Further, it is possible to identify whether the sample is a standard sample, a control sample, or a general sample, based on the upper-level number of the sample identification number.

The analysis of the entire automatic analyzer is performed in the order of data processing such as sampling, reagent dispensing, stirring, photometry, washing of reaction vessels, and concentration conversion, as described below. A plurality of sample containers 1 into which samples are put are provided on a sample tray 2. The detector disc 2 is controlled by a computer 3 via an interface 4. The sample tray 2 reads the barcode on the outer wall of the sample container 1 by the barcode reader 28, and associates the sample with the analysis item. Thereafter, the sample is rotationally moved to a position below the probe of the sample dispensing mechanism 5 in the order of the analyzed samples, and a predetermined amount of the sample in the predetermined sample container 1 is dispensed into the reaction container 6 by the operation of the pump 7 for the sample connected to the sample dispensing mechanism 5. The reaction vessel 6 to which the specimen is dispensed moves to the first reagent addition position in the reaction bath 9. A predetermined amount of reagent sucked from the reagent container 12 by the operation of the reagent pump 11 is added to the reaction container 6 after the movement, and the reagent pump 11 is connected to a suction nozzle of the reagent dispensing pipette 8. The reaction container 6 to which the first reagent has been added is moved to the position of the stirring mechanism 13, and the first stirring is performed. When the up to fourth reagent is set on the

reagent disks

26A and 26B, the first to fourth reagents are added and stirred.

The reaction vessel 6 in which the contents are stirred passes through a light beam emitted from the light source 14, and the absorbance at that time is detected by the multi-wavelength spectrometer 15. The detected absorbance signal is input to the computer 3 via the a/D converter 16 and the interface 4, and is converted into the concentration of the sample. The data converted into the density is printed and output from the printer 27 via the interface 4 and displayed on the screen of the CRT 18. The reaction cuvette 6, which has finished its photometric measurement, is moved to the position of the cleaning mechanism 19, and after the inside is discharged by the cuvette cleaning pump, it is cleaned with a cleaning liquid for the next analysis.

In the automatic analyzer thus configured, the maintenance screen is displayed on the CRT (display unit) 18. The CRT18 may be a display device such as a liquid crystal display.

Fig. 2 is a diagram showing an example of a maintenance screen 1801 displayed on the CRT 18. In this screen 1801, the maintenance item name 201, the remaining effective period (%) 202 of each maintenance item, the next scheduled implementation date 203, the remaining term 204, and the required time 205 are displayed in a list for each maintenance recommended implementation cycle, and information as a reference of the schedule of maintenance is presented to the operator.

The maintenance items and the recommended execution period are predetermined and set in the following database.

In the maintenance screen 1801 shown in fig. 2, information of maintenance items classified for each cycle is displayed. In the example of fig. 2, the display is classified into day, week, month, and hour display.

These maintenance items are classified according to a maintenance recommended execution period registered in a database described below (for example, if the recommended execution period is 24 hours, the recommended execution period is displayed as a day). Maintenance items (items whose maintenance timing is not dependent on the measurement period next time, etc.) not registered in the database of the recommended execution period are displayed as needed.

When the term of the next scheduled execution time date specified by the user (operator) is shorter than the execution recommended period, the next scheduled execution time date specified by the user is displayed in the column of "next scheduled execution time date" 203.

Further, the display may be performed in a cycle such as every two weeks or two months depending on the use form of the automatic analyzer.

In the maintenance screen 1801 shown in fig. 2, the remaining effective period (%) 202 is displayed as a percentage for each maintenance item. The remaining effective period (%) is a ratio of the amount of change from the last date of maintenance execution to the time of display of the maintenance screen with respect to the grace period permitted by the element, with respect to the element (elapsed time, number of analyses, operating time, and the like) that affects the maintenance execution timing. For example, when a recommended maintenance period is set for a certain maintenance item, the maintenance execution period of the maintenance item is affected by the elapsed time from the final maintenance execution date. In this case, the remaining effective period (%) is a proportion of the remaining time with respect to the maintenance recommended implementation period.

A plurality of remaining effective periods (%) may be set in consideration of maintenance items. For example, in replacement of the comparative electrode as one maintenance item, the elapsed time and the number of times of analysis have an influence on the maintenance execution timing. At this time, several methods of displaying the remaining effective period (%) are conceivable. Examples of the assumed display method include: (1) displaying all remaining effective periods (%) regarding the maintenance items; (2) the remaining effective period (%) showing the highest (low); (3) the remaining effective period (%) for one element is always displayed, and the remaining effective period (%) for the remaining elements is displayed in a pop-up box or other screen. It is important to select an appropriate display method in consideration of the utilization manner. Furthermore, in one embodiment of the present invention, the following is envisaged: the lowest remaining effective period (%) determined from the remaining time and the number of analyses is calculated by the computer 3 with respect to the corresponding maintenance items (2), stored in the database of the memory 25, and displayed on the display section 18.

The remaining effective period (%) in the maintenance screen 1801 of fig. 2 is displayed with numerals and bars. When the remaining time for each maintenance item is simply displayed, the bar length is not extended at all, and it is assumed that the bar cannot be included in the screen. By displaying the remaining effective period (%) as a ratio rather than simply displaying the remaining time on the screen 1801, it is possible to display the remaining effective period (%) in an area of the same size for each maintenance item.

Since the remaining term of maintenance for each maintenance item is displayed as described above, the priority (urgency) of maintenance can be visually understood, and since the required time is displayed for each maintenance item, the user can contribute to the planning of the maintenance schedule according to the operation schedule of the automatic analyzer based on the information. In addition, the display can also contribute to determining the order time and order number of the consumable supplies according to the maintenance items.

In addition, in the maintenance screen 1801 of fig. 2, the display can be changed according to the value of the remaining effective period (%) of each maintenance item. For example, the bars of the remaining effective periods (%) of the maintenance items displayed in the month column of fig. 2, such as "reaction cell replacement", "reaction tank cleaning", and "ISE dilution tank cleaning", are displayed, and the bar display (color) changes depending on the value of the remaining effective period (%). The operator can intuitively understand the priority or urgency of maintenance by confirming the color of the bar. The value of the remaining effective period (%) in which the change occurs is displayed, and can be set for each maintenance item, and it is preferable if the value can be changed by an operator.

In the maintenance screen 1801 of fig. 2, the scheduled time of day 203 of the next maintenance can be displayed for each maintenance item. The next scheduled time of day 203 is updated when maintenance is performed.

In the maintenance screen 1801 of fig. 2, the remaining period 204 of maintenance can be displayed for each maintenance item. The display unit of the remaining period 204 may be changed as appropriate, such as date, time, or number of analyses.

In the maintenance screen 1801 of fig. 2, the required maintenance time 205 stored in the DB (database) can be displayed for each maintenance item. The required time 205 may be predetermined for each maintenance, or may be updated by calculation based on the actual time taken. In addition, the time required for display may be arbitrary, and in a utilization form in which the operator is familiar with maintenance, the display may be complicated, and therefore, the display may not be required.

By confirming the maintenance screen 1801 of fig. 2, the operator can confirm various information about the maintenance items for each cycle at a glance. Thus, it is possible to determine the schedule of maintenance appropriately in consideration of or reduce the time required until the determination.

Fig. 3 is a diagram showing a maintenance screen 1802 expanded from the maintenance screen 1801 of fig. 2, and includes, in addition to a display area C having information on maintenance items classified for each cycle, a display area a for maintenance items to be performed on the current day and a display area B for recommended maintenance items to be performed in the near future. The maintenance screen 1802 can be displayed in place of the maintenance screen 1801, and any item can be selected and displayed.

The display area a and the display area B of the maintenance screen 1802 do not necessarily have to be prepared, but by estimating and presenting maintenance items to be performed on the current day or in the near future based on the remaining term or the ratio thereof, it is possible to contribute to schedule maintenance.

Hereinafter, the display area a and the display area B will be described.

First, the display area a will be explained.

The display area a displays maintenance items to be performed during the current day in a list. Fig. 6 is an algorithm for selecting a maintenance item displayed in the display area a. The algorithm shown in fig. 6 is implemented for all maintenance items set in the automatic analyzer. Fig. 5 is a diagram showing a DB300 for managing information for each maintenance item, the DB300 being stored in the memory 25. The DB300 includes: name 301 of each maintenance, recommended implementation period 302, final implementation time day 303, remaining term rate threshold a304, user-specified implementation time day 305, remaining term rate threshold b306, required time 307, time of day flag 308, and recommended (recommended future implementation) flag 309. When the user logs in, the

flags

308 and 309 use temporary current day 308 and recommendation 309. Further, the

flags

308 and 309 can be made effective for the clicked maintenance items by pressing the "add on day" and "add on recommended" buttons displayed on the below-described screen 1802. Flag 308 is higher in priority than flag 309. When the maintenance item is executed after the

flags

308 and 309 become valid, the flags become invalid.

Upon receiving the instruction to display maintenance screen 1802 in fig. 3, the algorithm in fig. 6 starts. When the algorithm starts, the current time and day are acquired first (step S101).

Then, the recommended execution period 302 and the final execution time date 303 of the maintenance items are acquired from the DB300 (step S102). The elapsed time of the maintenance item is calculated based on the following formula (1) from the current time day acquired in step S101 and the final implementation time day acquired in step S102 (step S103).

Elapsed time-current day-final implementation day … (1)

Then, the remaining time of the maintenance items is calculated based on the following formula (2) from the elapsed time of the above formula (1) and the recommended execution period 302 of the maintenance items (step S104).

Remaining time-recommended implementation period-elapsed time … (2)

It is determined whether or not the maintenance items should be displayed in the display area a (whether or not the remaining time is 24 hours or less) based on the remaining time of the above equation (2) (step S105). If the remaining time is 24 hours or less, the maintenance items are displayed in the display area a (step S112), and the process ends.

In step S105, if the remaining time is longer than 24 hours, the current day flag 308 is acquired (step S106), and it is determined whether the current day flag 308 is valid (step S107). When the current day flag 308 is valid, that is, it is determined whether or not the maintenance item to be performed within the current day is the remaining time, and the corresponding maintenance item is displayed in the display area a (a column of the current day) formed in the display unit) (step S112), and the process is ended.

In step S107, if the current day flag 308 is not valid, it is determined whether or not the user-specified execution time day has been set in the DB300 (step S108). If the user specifies that the execution time date is set, the process is terminated.

In step S108, when the user-designated execution time date is set, the "user-designated execution time date" set in the DB300 is acquired (step S109), the user-designated remaining time is calculated (step S110), and it is determined whether or not the user-designated remaining time is 24 hours or less (step S111).

In step S111, when the user specifies that the remaining time is 24 hours or less, the maintenance items are displayed in the display area a (step S112), and the process ends.

In step S111, if the user specifies that the remaining time is not 24 hours or less, the process ends.

Further, the user-specified remaining time is calculated according to the following formula (3).

User-specified remaining time-user-specified implementation day-current day … (3)

The display region B will be described below.

When the algorithm starts, the current time and day are acquired first (step S201).

Then, a recommended execution period 302 and a final execution time 303 of the maintenance items are acquired from the DB300 (step S202).

The elapsed time of the maintenance item is calculated based on the above formula (1) from the current time day acquired in step S201 and the final implementation time day acquired in step S202 (step S203).

Then, the remaining time of the maintenance items is calculated based on the above formula (2) from the elapsed time of the above formula (1) and the recommended execution period 302 of the maintenance items (step S204).

Then, the recommended flag set in the DB300 is acquired (step S205), and it is determined whether or not the acquired recommended flag is valid (step S206). If the acquired recommended flag is valid, the maintenance item is displayed in the display area B (step S210), and the process ends.

In step S206, if the acquired recommendation flag is not valid (invalid), the remaining term rate is calculated according to the following formula (4) (step S207).

Remaining deadline rate-remaining time/recommended period … (4)

Then, the remaining term rate threshold value a set in the DB300 is acquired (step S208), and it is determined whether or not the remaining term rate calculated in step S207 is equal to or greater than the remaining term rate threshold value a (step S209). If the remaining term rate is equal to or greater than the remaining term rate threshold a, the process is terminated. When the remaining term rate is less than the remaining term rate threshold a, the maintenance items are displayed in the display area B (step S210), and the process is terminated.

The display area C will be described below. The display area C is an area for displaying maintenance items for the week, month, and hour, and basically has the same display contents as those shown in fig. 2. Fig. 4 is an additional explanatory view of the display of fig. 3.

In fig. 4, when a maintenance item is clicked in the display area C, buttons for shifting to a maintenance implementation screen, a maintenance details screen, and a schedule setting screen are displayed as a menu for the clicked maintenance item. The example shown in fig. 4 is an example of a case where the maintenance item is a reaction unit replacement. In addition, a button for adding the designated maintenance item to the current day or recommendation (a column in which the recommendation is performed in the near future) is displayed.

When the maintenance is performed, a screen for performing the designated maintenance item is displayed.

When the maintenance details are pressed, a screen showing details (status, associated maintenance items, implementation target maintenance module, associated consumable part information) of the designated maintenance item is displayed.

Fig. 8 is a diagram showing a maintenance detail screen 1803. In fig. 8, the object maintenance items clicked on the screen 1802 shown in fig. 4 and the states thereof are displayed.

In addition, in the display of the associated maintenance items, maintenance items associated with the object maintenance items are displayed. For example, when the target maintenance item is "reaction cell replacement", the maintenance items that need to be continuously performed, "cleaning of the reaction system", and "cell blank measurement" are displayed as the necessary associated maintenance items, and the "cleaning of the reaction tank filter", which is a maintenance item for the same module but is not necessarily performed, and the like are displayed as arbitrary associated maintenance items.

The related consumable part information displays information on a consumable part such as a detergent or a replacement part related to the target maintenance. In this case, consumable part information only necessary for the target maintenance item may be displayed, or a consumable part including a case where the maintenance item needs to be associated may be displayed. Further, the operator can be made to select these display contents.

The execution target maintenance module visually displays the execution target maintenance items. In the example of fig. 8, the "analysis unit" is an execution target maintenance module in the target maintenance item "reaction cell replacement".

The maintenance detail screen 1803 can be referred to as auxiliary information in schedule setting described below. The maintenance detail screen 1803 can also be displayed as a sub-screen on the maintenance screen 1802 shown in fig. 3 and 4.

Fig. 9 is a diagram in which a maintenance details screen is displayed on a maintenance screen 1802 as a sub-screen 1804. The sub-screen 1804 can be moved by dragging and can be changed in size.

The following describes a case where the schedule setting button shown in fig. 4 is pressed.

Fig. 10 is a diagram showing a schedule setting screen 1805 displayed when the schedule setting button is pressed. In fig. 10, the object maintenance item displays a maintenance item name that is an object of change of schedule setting. The target maintenance item is a maintenance item clicked to display the schedule setting button.

Whether or not to set the next scheduled execution time day is selected in the next execution time day designation. In addition, the next scheduled execution time date is input to the next execution time date. If "not" is selected in the "designation of next date of execution", the display is preferentially made inactive. The maintenance recommendation setting makes a setting of a recommendation about maintenance. The recommendation is made by selecting the conditions such as the elapsed time since maintenance, the operating time, the number of measurements, the remaining amount, and the like. The remaining valid period displayed in red and yellow in the bar display is set. The period for performing maintenance is set in the period column (basically, not changed, and a condition lower than the initial value specified by the manufacturer is not added).

In the bar display, the value of red corresponds to the threshold value a stored in the DB 300. The red portion becomes the key for making the bar display red and displaying the maintenance items on the recommendation. Yellow corresponds to threshold b stored in DB 300. Becomes the key for yellowing the color of the bar. The red and yellow values can be set according to the cycle value or the remaining validity period (%).

Fig. 11 is a diagram showing a schedule setting screen 1805 in a case where the next implementation day is not specified. As shown in fig. 11, when the next date of execution is not specified, the column of the next date of execution is an inactive display. This is an example of a setting screen in the case where maintenance is recommended outside the cycle time.

Fig. 12 is a diagram showing an algorithm of the schedule setting.

In fig. 12, a maintenance item for which it is desired to change the next scheduled time of day or the recommended setting for maintenance is selected (step S301). Then, the schedule setting button is pressed (step S302), and a schedule setting screen is displayed (step S303). Then, it is determined whether or not the next scheduled execution time day is designated (step S304), and if the next scheduled execution time day is designated, "go" is selected for the next scheduled execution time day designation (step S305), and the next scheduled execution time day is input (step S306).

Then, it is determined whether or not the maintenance recommendation setting is changed (step S307). In step S304, the process also proceeds to step S307 without specifying the next scheduled time of execution. In step S307, when the maintenance recommendation setting is changed, the process proceeds to step S308, where the maintenance recommendation setting is changed. Then, it is determined whether or not the setting is reflected (step S309). In step S307, the process also proceeds to step S309 without changing the maintenance recommendation setting. In step S309, the ok button is pressed when the setting is reflected (step S310), and the cancel button is pressed when the setting is not reflected (step S311).

Fig. 13 is a functional block diagram in the computer (transportation control unit) 3 for performing display control of the

display screens

1801, 1802, 1803, 1804, and 1805 and execution of the algorithms in fig. 6, 7, and 12.

In fig. 13, the computer 3 includes a remaining time calculating unit 31, a required maintenance time extracting unit 34, a schedule changing unit 32, a maintenance recommendation setting changing unit 33, and a determining unit 35. The clock pulse generation unit 29 shown in fig. 13 functions as a clock, and the remaining time calculation unit 31 acquires the current time from the clock pulse generation unit 29. The remaining time calculating unit 31 acquires data from the DB300 stored in the memory 25, and performs steps S101 to S104, S109, and S110 in fig. 6, and steps S201 to S204, and S207 in fig. 7.

The maintenance required time extracting unit 34 extracts the required time of the DB300 stored in the memory 25 and displays the extracted time on the display unit 18 through the determining unit 345. Then, the algorithm of fig. 12 is performed together with the determination unit 35 based on the input from the schedule change unit 32 and the input unit (keyboard) 21.

The maintenance recommendation setting changing unit 33 performs the algorithm of fig. 7 together with the remaining time calculating unit 31 and the determining unit 35. The determination unit 35 controls the display content of the display unit 18 based on the information from the remaining time calculation unit 31, the required maintenance time extraction unit 34, the schedule change unit 32, and the maintenance recommendation setting change unit 33.

As described above, according to one embodiment of the present invention, by confirming screen 1801 shown in fig. 2 or screen 1802 shown in fig. 3, it is possible to confirm at a glance information on maintenance items that should be performed on the current day, maintenance items recommended to be performed in the near future, the time required for the maintenance items, and each maintenance item classified per cycle. This makes it possible for the operator to easily grasp maintenance items to be performed within the current day in consideration of the analysis operation, and to acquire information for specifying schedules of maintenance on and after the current day.

Further, according to one embodiment of the present invention, even when the schedule of maintenance is changed, the display can be easily changed in accordance with the change.

It is preferable that the

screen

1801, 1802 and the other screens present the related information for each maintenance item. The related information includes information on components to be used (model number, stock number, price, date of last order), information on consumables (model number, stock number, price, date of last order), recommended maintenance items to be performed simultaneously (maintenance of the same module, adjustment work at the time of replacement of components, and the like), and the like. This information is mostly considered in the maintenance schedule, which will help the schedule by being able to be referenced once.

In the above embodiment, the remaining effective period (%) is displayed as a bar, but the remaining effective period (%) may be displayed by using a dashboard, a graph, a sign, or a color. In the present invention, the bar, the dashboard, the graph, the sign, and the color are collectively defined as a graphic display.

Claims

1. An automatic analyzer, comprising:

an analysis unit that analyzes a sample;

a memory for storing at least a plurality of maintenance items related to the analysis unit, a final execution time date of each of the maintenance items, a recommended execution period of each of the maintenance items, and a required time required for performing each of the maintenance items;

a calculation control unit including a remaining time calculation unit that calculates a remaining time until a maintenance recommended execution time and a ratio of the remaining time to each recommended execution period of the maintenance based on a recommended execution period and a final execution time date of each maintenance item stored in the memory, a schedule change unit that performs an algorithm of schedule setting together with the determination unit based on an input from the schedule change unit and an input unit, a maintenance recommended setting change unit that controls display contents based on information from the remaining time calculation unit, the maintenance required time extraction unit, the schedule change unit, and the maintenance recommended setting change unit, and a determination unit; and

a display unit that displays, for each of the maintenance items, the remaining time calculated by the remaining time calculation unit, a ratio of the remaining time to the recommended execution period, and a required time required for performing each of the maintenance items, wherein each of the recommended execution periods is classified into a day, a week, a month, and a time, the display unit displays, by a numerical display and a graphic display, a remaining effective period that is a ratio of a change amount from a last maintenance execution date to a maintenance screen display time of a grace period permitted by an element with respect to the element that affects a maintenance execution timing, and the maintenance screen has, in addition to a first display region of information on the maintenance items classified for each of the recommended execution periods, a second display region of the maintenance items to be executed on the day, A third display area of maintenance items that are recommended for implementation in the near future.

2. The automatic analysis device according to claim 1,

the operation control unit calculates a remaining effective period determined by the number of analyses by the analysis unit and the remaining time for a predetermined maintenance item among the plurality of maintenance items, stores the calculated remaining effective period in the memory, and displays the remaining effective period as the remaining time on the display unit.

3. The automatic analysis device according to claim 1 or 2,

the display unit visually displays a ratio of the remaining time to the recommended execution period by the graphic display.

4. The automatic analysis device according to claim 3,

the graphical display is a bar, dashboard, graph, logo, or color.

5. The automatic analysis device according to claim 1 or 2,

the operation control unit determines a maintenance item to be performed on the current day based on the remaining time, and displays the determined maintenance item in the second display area of the maintenance item to be performed on the current day formed on the display unit.

6. The automatic analysis device according to claim 1 or 2,

the operation control unit determines a maintenance item to be performed in the near future based on the remaining time, and displays the determined maintenance item in the third display area, which is formed in the display unit and in which the maintenance item to be performed in the near future is recommended.

7. The automatic analysis device according to claim 1,

the memory stores a current day flag predetermined by an operator for each of the maintenance items and a predetermined time day for specifying a maintenance item selected by the operator among the maintenance items,

the above-mentioned operation control part is provided with a control unit,

determining whether or not the calculated remaining time is 24 hours or less for each maintenance item stored in the memory, and displaying the determined maintenance item in the second display area of the maintenance item performed within the day formed on the display unit when the remaining time is 24 hours or less,

when the calculated remaining time exceeds 24 hours and a day flag of the maintenance items stored in the memory is valid, the maintenance items are displayed in the second display area of the maintenance items performed within the day formed on the display unit,

when the day flag of the maintenance item stored in the memory is not displayed effectively, it is judged whether the specified scheduled implementation day is stored,

when the specified scheduled implementation day is stored, the remaining time from the current time to the specified scheduled implementation day is calculated, and when the remaining time is 24 hours or less, the determined maintenance items are displayed in the second display area of the maintenance items that are implemented within the current day and formed on the display unit.