公开(公告)号：US10690690B2

公开(公告)日：2020-06-23

申请号：US15567758

申请日：2016-04-07

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Akihiro Yasui ,  Saori Chida ,  Masaaki Hirano

IPC: G01N35/10 ,  G01N21/31 ,  G01N35/00

Abstract: Provided is a specimen dispensing mechanism that includes a specimen nozzle dispensing a specimen to be analyzed in a specimen chamber to a reaction chamber by suctioning and ejecting the specimen, and the specimen dispensing mechanism is controlled so as to perform a specimen suctioning process of inserting the specimen nozzle into the specimen chamber and suctioning the specimen in the specimen chamber, a liquid suctioning process of suctioning a liquid by the specimen nozzle after the specimen suctioning process, and an ejection process of ejecting the liquid and a portion of the specimen to the empty reaction chamber from the specimen nozzle in this order. Thereby, it is possible to provide an automatic analyser and a method which are capable of dispensing a small amount of specimen with a high level of accuracy, without depending on the outer shape of a specimen nozzle or the viscosity of the specimen.

公开(公告)号：US11041874B2

公开(公告)日：2021-06-22

申请号：US16086085

申请日：2017-01-31

Applicant: Hitachi High-Technologies Corporation

Inventor： Saori Chida ,  Yoichi Aruga ,  Akihiro Yasui ,  Yoshiki Muramatsu ,  Yoko Inoue ,  Hideto Tamezane

IPC: G01N35/10 ,  G01N21/59 ,  G01N35/04 ,  G01N35/00

Abstract: The automatic analyzer includes: a member to be washed, such as a probe or a stirrer for contacting and stirring a liquid; a wash station in which the member to be washed is washed with a washing liquid; and a measuring part that measures an optical characteristic of an evaluation reagent contained in a reaction cell. A control unit brings the member to be washed that has been washed in the wash station into contact with the evaluation reagent, causes the measuring part to measure the optical characteristic after contact with the evaluation reagent, and calculates the amount of the washing liquid carried into the reaction cell by the member to be washed, based on the measured optical characteristic.