US 11,656,238 B2
Automatic analyzer
Takashi Nakasawa, Tokyo (JP); Tetsuji Kawahara, Tokyo (JP); Masaharu Nishida, Tokyo (JP); Yoko Inoue, Tokyo (JP); Kenichi Yagi, Tokyo (JP); Osamu Matsumoto, Tokyo (JP); and Sayaka Asada, Tokyo (JP)
Assigned to HITACHI HIGH-TECH CORPORATION, Tokyo (JP)
Appl. No. 16/473,687
Filed by Hitachi High-Technologies Corporation, Tokyo (JP)
PCT Filed Jan. 12, 2018, PCT No. PCT/JP2018/000575
§ 371(c)(1), (2) Date Jun. 26, 2019,
PCT Pub. No. WO2018/135384, PCT Pub. Date Jul. 26, 2018.
Claims priority of application No. JP2017-009086 (JP), filed on Jan. 23, 2017.
Prior Publication US 2019/0346468 A1, Nov. 14, 2019
Int. Cl. G01N 35/02 (2006.01); G01N 21/03 (2006.01); G01N 35/00 (2006.01); G01N 35/04 (2006.01); G01N 21/76 (2006.01); G01N 21/82 (2006.01)
CPC G01N 35/025 (2013.01) [G01N 21/03 (2013.01); G01N 21/76 (2013.01); G01N 21/82 (2013.01); G01N 35/0092 (2013.01); G01N 35/04 (2013.01); G01N 2035/0437 (2013.01); G01N 2035/0453 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An automatic analyzer, comprising:
a reaction disk having a plurality of reaction containers mounted thereon;
a reagent disk having a reagent container storing a reagent mounted thereon and having a container storing a detergent mounted thereon;
a reagent dispensation mechanism configured to dispense the reagent stored in the reagent container and dispense the detergent stored in the container to the reaction containers;
a sample container transport mechanism transporting a sample container storing a sample;
a sample dispensation mechanism dispensing the sample stored in the sample container to the reaction containers; and
a control unit controlling the reaction disk, the reagent disk, the reagent dispensation mechanism, the sample container transport mechanism, and the sample dispensation mechanism,
wherein the control unit is programmed to:
receive an input indicating a number of days in which all of the reaction containers are to be cleaned, the number of days being greater than two,
determine an order of washing the reaction containers mounted on the reaction disk, which includes determining individual reaction containers that are cleaning targets for each consecutive day of the number of days such that all the reaction containers mounted on the reaction disk are to be cleaning targets once within the number of days and that all the reaction containers that are cleaning targets in a single day of the consecutive days do not continuously reach a sample dispensation position of the sample dispensation mechanism, and such that two or more reaction containers mounted on the reaction disk that are not cleaning targets in the single day reach the sample dispensation position between respective reaction containers that are the cleaning targets in the single day, and samples are dispensed into each of the two or more reaction containers at the sample dispensation position by the sample dispensation mechanism,
control the sample dispensation mechanism, the reaction disk, and the reagent dispensation mechanism in such a manner that during an operation state after the sample to be analyzed is dispensed to the reaction containers, the sample is analyzed, and the detergent is dispensed to the reaction containers that are the cleaning targets by the reagent dispensation mechanism of each day of the number of days, and
control the sample dispensation mechanism, the reaction disk, and the reagent dispensation mechanism in such a manner that the sample is dispensed to the reaction containers at intervals which are between the dispensations of the detergent to all of the reaction containers that are the cleaning targets of each day of the number of days.