Automatic analysis device control method and automatic analysis device

Patent metadata

Field	Value
Publication number	US-2024280602-A1
Application number	US-202218570131-A
Country	US
Kind code	A1
Filing date	Jun 1, 2022
Priority date	Jul 8, 2021
Publication date	Aug 22, 2024
Grant date	—

Abstract

To provide a control method for an automatic analyzer by which an amount of waste liquid of a solvent such as an organic solvent whose waste amount is strictly controlled, can be controlled, and a throughput of waste liquid treatment can be improved.
A control method for an automatic analyzer according to the present disclosure includes: acquiring information about an amount of an organic solvent contained in a liquid introduced into a reaction container and determining whether or not to suck a residual liquid in the reaction container according to the information.

First claim

1 . A control method for controlling an automatic analyzer that analyzes a sample, the control method comprising:
a step of acquiring information about whether or not an amount of an organic solvent contained in a liquid added to a reaction container storing the sample is a reference value or more; a step of determining, according to the information, whether or not the amount of the organic solvent contained in the reaction container is the reference value or more; a step of sucking a residual liquid remaining in the reaction container from the reaction container when it is determined that the amount of the organic solvent contained in the reaction container is the reference value or more, and not sucking the residual liquid from the reaction container when it is determined that the amount of the organic solvent contained in the reaction container is not the reference value or more; and a step of moving the reaction container to a disposal container holding unit configured to hold a reaction container that is disposed of.

2 . The control method according to claim 1 , wherein
in the step of acquiring the information, the amount of the organic solvent contained in the liquid is calculated using a concentration of the organic solvent contained in the liquid and an amount of the liquid, and the information is acquired according to a calculation result.

3 . The control method according to claim 1 , further comprising:
a step of acquiring data describing a correspondence relationship between at least one of an analysis item during analyzing of the sample and a type of the sample, and an amount of the organic solvent contained in the liquid, wherein in the step of acquiring the information, the information is acquired by using at least one of the analysis item during analyzing of the sample and the type of the sample and referring to the data.

4 . The control method according to claim 1 , further comprising:
a step of dispensing a sample liquid containing the sample into a first reaction container; and a step of transferring the liquid in the first reaction container to a second reaction container, wherein in the determining step, it is determined whether or not the amount of the organic solvent contained in the first reaction container is the reference value or more, in the step of sucking or not sucking the residual liquid, the residual liquid in the first reaction container is sucked when it is determined that the amount of the organic solvent contained in the first reaction container is the reference value or more, and the residual liquid is not sucked when it is determined that the amount of the organic solvent contained in the first reaction container is not the reference value or more, and in the step of moving the reaction container, the first reaction container is moved to the disposal container holding unit.

5 . The control method according to claim 1 , further comprising:
a step of dispensing a sample liquid containing the sample into a first reaction container; a step of transferring the liquid in the first reaction container to a second reaction container; and a step of analyzing the liquid stored in the second reaction container, wherein in the determining step, it is determined whether or not the amount of the organic solvent contained in the second reaction container is the reference value or more after the analysis is completed, in the step of sucking or not sucking the residual liquid, the residual liquid in the second reaction container is sucked when it is determined that the amount of the organic solvent contained in the second reaction container is the reference value or more, and the residual liquid is not sucked when it is determined that the amount of the organic solvent contained in the second reaction container is not the reference value or more, and in the step of moving the reaction container, the second reaction container is moved to the disposal container holding unit.

6 . The control method according to claim 1 , wherein
the liquid is at least one of:
a sample liquid containing the sample;
a reagent liquid containing a reagent that reacts with the sample;
a cleaning liquid used for cleaning an unnecessary component stored in the reaction container;
an eluent by which the sample is eluted; and
a composition adjustment liquid generated by adjusting a composition of a sample liquid supplied to an analyzer that analyzes a component of the sample.

7 . The control method according to claim 1 , wherein
the automatic analyzer includes a residual liquid tank configured to store the residual liquid, and the control method further comprises:
a step of discharging the sucked residual liquid to the residual liquid tank when the residual liquid is sucked from the reaction container, and not discharging the residual liquid to the residual liquid tank when the residual liquid is not sucked from the reaction container.

8 . The control method according to claim 1 , wherein
the automatic analyzer includes a residual liquid suction mechanism configured to suck the residual liquid from the reaction container, and the control method further comprises:
a step of driving the residual liquid suction mechanism so as to suck the residual liquid after analysis is performed when it is determined that the amount of the organic solvent contained in the reaction container is the reference value or more, and not driving the residual liquid suction mechanism when it is determined that the amount of the organic solvent contained in the reaction container is not the reference value or more.

9 . An automatic analyzer that analyzes a sample, the automatic analyzer comprising:
a controller configured to control the automatic analyzer by performing the control method according to claim 1 .

Assignees

• Hitachi High Tech Corp

Inventors

• Hayakawa Shohei
• Matsuoka Shinya
• Suzuki Iwao

Classifications

• G01N2035/1025

  Fluid level sensing · CPC title

• G01N35/1004

  Cleaning sample transfer devices · CPC title

• G01N35/00584

  Control arrangements for automatic analysers · CPC title

• G01N35/1009 Primary

  Characterised by arrangements for controlling the aspiration or dispense of liquids · CPC title

• G01N35/1016 Primary

  Control of the volume dispensed or introduced · CPC title