Automatic analysis device and automatic analysis method

Patent metadata

Field	Value
Publication number	US-2025076334-A1
Application number	US-202218293933-A
Country	US
Kind code	A1
Filing date	Jun 15, 2022
Priority date	Aug 19, 2021
Publication date	Mar 6, 2025
Grant date	—

Abstract

An object of the present invention is to provide an automatic analysis device and an automatic analysis method that inhibit an increase in a usage amount of a detergent or a processing time due to excessive additional cleaning. According to the present invention, an automatic analysis device includes: a dispensing mechanism configured to aspirate and discharge a specimen; a cleaning unit configured to clean the dispensing mechanism; and a control unit configured to determine whether to perform additional cleaning in addition to normal cleaning performed at each dispensing. The control unit is configured to perform the determination based on a use of a pre-specimen dispensed before a post-specimen to be dispensed by the dispensing mechanism.

First claim

1 . An automatic analysis device comprising:
a dispensing mechanism configured to aspirate and discharge a specimen; a cleaning unit configured to clean the dispensing mechanism; and a control unit configured to determine whether to perform additional cleaning in addition to normal cleaning performed at each dispensing, wherein the control unit is configured to perform the determination based on a use of a pre-specimen dispensed before a post-specimen to be dispensed by the dispensing mechanism.

2 . The automatic analysis device according to claim 1 , wherein, based on a type of a control specimen of the pre-specimen, the control unit is configured to determine necessity or non-necessity of the additional cleaning.

3 . The automatic analysis device according to claim 1 , wherein, based on a type of calibrator of the pre-specimen, the control unit is configured to determine necessity or non-necessity of the additional cleaning.

4 . An automatic analysis device comprising:
a dispensing mechanism configured to aspirate and discharge a specimen; a cleaning unit configured to clean the dispensing mechanism; and a control unit configured to determine whether to perform additional cleaning in addition to normal cleaning performed at each dispensing, wherein the control unit is configured to perform the determination based on the number of times a pre-specimen dispensed before a post-specimen to be dispensed by the dispensing mechanism is dispensed, and the number of times of dispensing is the number of times the same pre-specimen is dispensed after a dispensing target is switched to the pre-specimen.

5 . The automatic analysis device according to claim 1 , wherein
the control unit is configured to determine a predetermined pattern from a plurality of cleaning patterns related to the additional cleaning.

6 . The automatic analysis device according to claim 1 , wherein
the control unit is configured to determine whether to perform the additional cleaning in consideration of a test item of the post-specimen.

7 . The automatic analysis device according to claim 6 , wherein, in a case in which the post-specimen is dispensed a plurality of times and is used for another test item, the additional cleaning is performed before first dispensing of the post-specimen when a test item on which the additional cleaning is to be performed is included.

8 . An automatic analysis method comprising:
a dispensing step of aspirating and discharging a specimen by a dispensing mechanism; a normal cleaning step of cleaning the dispensing mechanism at each dispensing; and an additional cleaning step of performing an additional cleaning when a control unit determines necessity of the additional cleaning, wherein the control unit is configured to determine necessity or non-necessity of the additional cleaning based on a use of a pre-specimen dispensed before a post-specimen to be dispensed by the dispensing mechanism or the number of times the same pre-specimen is dispensed after a dispensing target is switched to the pre-specimen.

Assignees

• Hitachi High Tech Corp

Inventors

• Yamauchi Masato
• Mori Takamichi
• Takahashi Kenichi

Classifications

• G01N2035/0443

  for reagents · CPC title

• G01N35/1004

  Cleaning sample transfer devices · CPC title

• G01N35/026

  having blocks or racks of reaction cells or cuvettes · CPC title

• G01N35/00594

  Quality control, including calibration or testing of components of the analyser · CPC title

• G01N35/1067 Primary

  for transfer to or from containers having different spacing · CPC title