Sample analyzer and storage medium

1. A sample analyzer comprising:

a measurement unit that holds a reagent to be used in a sample measurement and configured to measure a sample by using the reagent;

a memory that stores a usage amount of the reagent which was used by the measurement unit;

a controller programmed to calculate an estimated usage amount of the reagent for a specific day, based on the usage amount of the reagent stored in the memory; and

a display unit, wherein

the controller operates to control the display unit to display a screen image including:

a first bar graph indicating a remaining amount of the reagent held by the measurement unit;

a second bar graph indicating the estimated usage amount of the reagent for the specific day;

first numerical information indicating, by means of a numerical value, the remaining amount of the reagent; and

second numerical information indicating, by means of a numerical value, an excess or shortage amount of the remaining amount of the reagent relative to the estimated usage amount of the reagent;

wherein the specific day is set as a target estimation day of the week, and the controller is further programmed to calculate the estimated usage amount of the reagent for the specific day by:

filtering the usage amount of the reagent into first usage data relevant to operation days;

filtering the usage amount of the reagent into second usage data relevant to the same day of the week on which the target estimation day of the week falls;

determining an average usage amount of the reagent on the target estimation day of the week based on the first usage data and the second usage data;

determining a number of irregular holidays that are before and consecutive to the target estimation day, where the irregular holidays comprise holidays that do not fall on Saturday or Sunday;

adjusting the average usage amount of the reagent based on the number of irregular holiday; and

determining the estimated usage amount of the reagent for the specific day.

2. The sample analyzer of claim 1 , wherein the first bar graph comprises a chart extending in a horizontal the first direction in accordance with a magnitude of the remaining amount of the reagent and the second bar graph comprises a chart extending in the first direction in accordance with a magnitude of the estimated usage amount of the reagent, and to show the first numerical information, the second numerical information, and the graphic information are arranged in a line with the first direction, the first direction being a horizontal direction.

3. The sample analyzer of claim 2 , wherein

the controller is further programmed to control the display unit to show the graphic information so as to be sandwiched by the first numerical information and the second numerical information.

4. The sample analyzer of claim 2 , wherein

the measurement unit holds a plurality of reagents for a plurality of measurement items, and

the controller further operates to control the display unit to display, for each measurement item, the graphic information, the first numerical information, and the second numerical information, along with a name of the measurement item.

5. The sample analyzer of claim 2 , wherein

the controller further operates to control the display unit to display the graphic information within an area having a height which is greater than or equal to a height of a character used for indicating the first numerical information and the second numerical information, and which is less than or equal to twice of the height of the character.

6. The sample analyzer of claim 1 , wherein the first numerical information is information indicating, as the remaining amount of the reagent, a number of times of sample measurements performable using the reagent, and the second numerical information is information indicating, as the remaining amount of the reagent, an estimated number of times of sample measurements to be performed using the reagent.

7. The sample analyzer of claim 1 , further comprising an input unit, wherein

the controller controls the display unit to display the screen image as a screen image that is manually operable via the input unit for the first time after the measurement unit is powered on.

8. The sample analyzer of claim 1 , further comprising

an input unit, wherein

the controller controls the display unit to show the screen image as a screen image that is manually operable via the input unit for the first time after a user is logged on the sample analyzer.

9. The sample analyzer of claim 1 , wherein the screen image shows displays information indicating a maintenance operation scheduled to be performed on the specific day.

10. The sample analyzer of claim 1 , wherein the measurement unit that holds a consumable different from a reagent and measures the sample by using the consumable, and the screen image displays information indicating a remaining amount of the consumable.

11. The sample analyzer of claim 1 , wherein

when the specific day is an operation day, the controller is programmed to calculate the estimated usage amount of the reagent for the specific day, by extracting and using a part of the usage amount of the reagent relevant to a past operation day.

12. A non-transitory storage medium having stored therein a computer-executable program executed by at least one processor of a computer system to:

read out a usage amount of a reagent which was used by a measurement unit, from a memory, the memory configured to be a non-transitory storage medium;

calculate an estimated usage amount of the reagent for a specific day, based on the usage amount of the reagent read out from the memory, wherein the specific day is set as a target estimation day of the week, and the controller is further programmed to calculate the estimated usage amount of the reagent for the specific day by;

filtering the usage amount of the reagent into first usage data relevant to operation days;

filtering the usage amount of the reagent into second usage data relevant to the same day of the week on which the target estimation day of the week falls;

determining an average usage amount of the reagent on the target estimation day of the week based on the first usage data and the second usage data;

determining a number of irregular holidays that are before and consecutive to the target estimation day, where the irregular holidays comprise holidays that do not fall on Saturday or Sunday;

adjusting the average usage amount of the reagent based on the number of irregular holiday; and

determining the estimated usage amount of the reagent for the specific day; and

control a display unit to show a screen image including:

a first bar graph indicating a remaining amount of the reagent held by the measurement unit;

a second bar graph indicating the estimated usage amount of the reagent for the specific day;

first numerical information indicating, by means of a numerical value, the remaining amount of the reagent; and

second numerical information indicating, by means of a numerical value, an excess or shortage amount of the remaining amount of the reagent relative to the estimated usage amount of the reagent.