公开(公告)号：US20240159789A1

公开(公告)日：2024-05-16

申请号：US18548552

申请日：2021-12-03

申请人： HITACHI HIGH-TECH CORPORATION

发明人： Yuichi Iwase ,  Takushi Miyakawa ,  Shunsuke Miyamoto ,  Masafumi Miyake

IPC分类号： G01N35/10 ,  B01L3/02

CPC分类号： G01N35/1016 ,  B01L3/0293 ,  B01L2200/143 ,  B01L2300/027 ,  B01L2300/0645 ,  G01N2035/1025

摘要： The present invention enables automatic detection of failure in a plunger in a syringe pump unit by an automated analysis device, which includes a sample dispensing mechanism; a reagent dispensing mechanism; and a control unit for controlling operation of the sample dispensing mechanism and the reagent dispensing mechanism and analyzing the sample. The sample dispensing mechanism and the reagent dispensing mechanism each have a plunger for suctioning in and expelling liquid, and a plunger drive unit for driving the plunger. The control unit controls operation with the plunger drive unit of the reagent dispensing mechanism so that the plunger moves reciprocally by a backlash distance a predetermined number of times. Failure of the plunger is detected by detecting, using the liquid level sensing function, the amount of liquid discharged into the liquid storage container.

公开(公告)号：US20230044702A1

公开(公告)日：2023-02-09

申请号：US17790784

申请日：2020-12-03

申请人： HITACHI HIGH-TECH CORPORATION

发明人： Yuichi Iwase ,  Takushi Miyakawa ,  Takahiro Kumagai ,  Haruyoshi Yamamoto ,  Tetsuji Kawahara

IPC分类号： B01F23/40 ,  G01N27/416 ,  B01F23/45 ,  B01F25/433 ,  G01N35/10

摘要： Provided is an electrolyte analysis apparatus capable of diluting and preparing a reagent with higher accuracy with a simpler device configuration, comprising a first flow path configured to send a high-concentration reagent from a high-concentration reagent bottle, a second flow path configured to send a reagent diluent from a reagent diluent bottle that stores the reagent diluent for diluting the high-concentration reagent, a junction unit configured to join the first flow path and the second flow path, a third flow path configured to send a mixed liquid, a dilution tank configured to store the prepared reagent, a prepared reagent discharge nozzle configured to discharge the prepared reagent, a liquid sending mechanism configured to send the reagent and the reagent diluent to the junction unit at a predetermined ratio so that the prepared reagent has a predetermined concentration, and an analysis unit configured to perform analysis with the prepared reagent.