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公开(公告)号：US20240272187A1
公开(公告)日：2024-08-15
申请号：US18642922
申请日：2024-04-23
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Yuto KAZAMA , Masahiko IIJIMA , Sakuichiro ADACHI
CPC classification number: G01N35/04 , G01N21/27 , G01N21/78 , G01N35/1002 , G01N35/1065 , G01N2035/00396 , G01N2035/00435 , G01N2035/00534 , G01N2035/0441 , G01N2035/0443 , G01N2035/0453 , G01N2035/0475
Abstract: An automatic analysis device has a plurality of types of photometers having different quantitative ranges, and an analysis control unit for quantifying the desired component in specimens based on measurement values of one or more photometers selected from among the plurality of types of photometers. The analysis control unit: sets a switching region in an overlap region of respective quantitative ranges of the plurality of types of photometers, said switching region having a greater width than does the variation in quantitative values of the desired component based on the measurement values of photometers having the same specimen; compares the quantitative value of a quantitative range portion that corresponds to the switching region and the quantitative values of the desired component based on the measurement values of the photometers; and selects a photometer to be used in quantitative output of the desired component from among the plurality of types of photometers.
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公开(公告)号：US20230069039A1
公开(公告)日：2023-03-02
申请号：US17797035
申请日：2021-01-18
Applicant: Hitachi High-Tech Corporation
Inventor： Tomotada OOTAKI , Kenichi TAKAHASHI , Masahiko IIJIMA
Abstract: Provided is an automatic analysis device in which a step for checking the progress of deterioration of a reagent can be automated and the expiration date of the reagent can be managed. Properties in absorption spectroscopic analysis pertaining to a standard liquid during implementation of calibration are used to calibrate the automatic analysis device so as to generate a standard curve N times for each lot. A series of action are repeated, with successive results in the implementation of calibration being updated while N is increased by 1 for each instance, until a first lot is completed. The final results are displayed in a dedicated screen image. This makes it possible to preliminarily ascertain the deterioration of the reagent, therefore making it possible to preemptively prevent inferiority in terms of repeatability and linearity, as well as to contribute to freedom from complex operations, reduction of cost, improvement in quality of data, and prevention of medical malpractice caused by a delay in reporting.
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公开(公告)号：US20220326270A1
公开(公告)日：2022-10-13
申请号：US17616351
申请日：2020-03-09
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Miki FURUYA , Emiko USHIKU , Masahiko IIJIMA
Abstract: The present invention comprises: an ISE measurement unit 32 that measures the electrolyte concentration of a sample; a spectrophotometer 14 that measures biochemical parameters of a sample; a pH measurement mechanism 34 that measures the pH of a sample; sample dispensing mechanisms 21, 22 that dispense the sample for measurement in the ISE measurement unit 32 or the spectrophotometer 14 from a container that contains the sample; and a conveyance mechanism 27 that conveys the container. The conveyance mechanism 27, the sample dispensing mechanisms 21, 22, and the pH measurement mechanism 34 are disposed such that the dispensing of the sample by the pH measurement mechanism 34 for pH measurement, or pH measurement, is performed after the dispensing of the sample by the sample dispensing mechanisms 21, 22.
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公开(公告)号：US20240345110A1
公开(公告)日：2024-10-17
申请号：US18294278
申请日：2022-08-03
Applicant: Hitachi High-Tech Corporation
Inventor： Hiromi Hirama , Hikaru TAKIZAWA , Tetsuji KAWAHARA , Masahiko IIJIMA , Shinji AZUMA
CPC classification number: G01N35/00623 , G01N21/03 , G01N35/0092 , G01N2035/00346
Abstract: Prior to dispensing a sample into a reaction vessel 1 and performing sample measurement, an automatic analyzer dispenses pure water into the reaction vessel to perform water blank measurement, corrects absorbance data of a reaction solution of the sample and a reagent measured by sample measurement with water blank absorbance data measured by the water blank measurement, and performs an analytical sequence that analyzes the sample based on the corrected absorbance data, and also determines a water quality abnormality of a reaction tank circulating water 112 based on the water blank absorbance data measured by the water blank measurement. Accordingly, water quality abnormality is detected in a reaction tank circulating water without adding a dedicated mechanism or confirmation operation.
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公开(公告)号：US20230375581A1
公开(公告)日：2023-11-23
申请号：US18027963
申请日：2021-02-10
Applicant: Hitachi High-Tech Corporation
Inventor： Nozomi SAGAE , Masahiko IIJIMA
CPC classification number: G01N35/00623 , G01N35/025
Abstract: In an automatic analyzer, an operator can rapidly identify a cause for abnormality of measurement and improve the abnormality, by referring to sample measurement data; calculating a combination of values of factors based on reaction process data, the factors being predetermined variables or measured values representing characteristics of a reaction; and referring to a correspondence table including a distribution diagram and information regarding an abnormality cause candidate. The distribution diagram includes a normal range region and a plurality of abnormal range regions that are generated by a combination of normal/abnormal ranges of the plurality of factors, and the abnormality cause candidate is associated with each of the abnormal range regions. An abnormal range region in the correspondence table to which the combination of the values of the plurality of factors corresponds is determined and the information regarding the abnormality cause candidate associated with the corresponding abnormal range region is output.
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Patent Agency Ranking
公开(公告)号：US20220074959A1
公开(公告)日：2022-03-10
申请号：US17530623
申请日：2021-11-19
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Akihisa MAKINO , Hajime YAMAZAKI , Keiko YOSHIKAWA , Manabu ANDO , Masahiko IIJIMA
Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.
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公开(公告)号：US20240192238A1
公开(公告)日：2024-06-13
申请号：US18286284
申请日：2022-02-18
Applicant: Hitachi High-Tech Corporation
Inventor： Akihito WAKUI , Takamichi MORI , Hikaru TAKIZAWA , Masahiko IIJIMA , Nozomi SAGAE
CPC classification number: G01N35/00623 , B01L3/50853 , G01N35/1065 , B01L2300/0851 , B01L2300/0858 , G01N35/025
Abstract: There is provided a sample container capable of dispensing a sample with a high accuracy even when a diameter of a test tube varies. The sample container includes: a containing unit that contains a sample and is inserted into a test tube; and a flange portion that is provided at an upper end of the containing unit and mounted on an open end portion of the test tube, in which the containing unit has a tubular body portion and a cup-shaped bottom portion connected to the body portion, and in the bottom portion, an angle formed by an inner wall continuous from the body portion and a central axis has a gradient of less than 20 degrees.
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公开(公告)号：US20230266352A1
公开(公告)日：2023-08-24
申请号：US18140657
申请日：2023-04-28
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Yuto KAZAMA , Masahiko IIJIMA , Sakuichiro ADACHI
CPC classification number: G01N35/04 , G01N21/78 , G01N21/27 , G01N35/1002 , G01N35/1065 , G01N2035/00396
Abstract: An automatic analysis device has a plurality of types of photometers having different quantitative ranges, and an analysis control unit for quantifying the desired component in specimens based on measurement values of one or more photometers selected from among the plurality of types of photometers. The analysis control unit: sets a switching region in an overlap region of respective quantitative ranges of the plurality of types of photometers, said switching region having a greater width than does the variation in quantitative values of the desired component based on the measurement values of photometers having the same specimen; compares the quantitative value of a quantitative range portion that corresponds to the switching region and the quantitative values of the desired component based on the measurement values of the photometers; and selects a photometer to be used in quantitative output of the desired component from among the plurality of types of photometers.
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公开(公告)号：US20230408537A1
公开(公告)日：2023-12-21
申请号：US18221980
申请日：2023-07-14
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Chie YABUTANI , Takumi YAMADA , Masahiko IIJIMA
CPC classification number: G01N35/025 , G01N35/00663 , G01N35/00693 , G01N35/1002 , G01N2035/00673
Abstract: An automatic analysis device is provided with: a sample disk for holding a sample container that accommodates a sample; a reagent disk for holding a reagent container that accommodates a reagent; at least two different measuring units that respectively perform different types of analyses; a control part that controls the measuring units; and a display part that displays: a work flow area in which the flow of operation of the two or more measuring units is displayed; and an overview area in which the usable or unusable states of the respective measuring units are displayed, wherein the overview area has a unit necessity-of-use selection part that can select whether using each of the measuring units is necessary, and the control part controls the display part so as to change the display of the work flow area on the basis of the information set in the unit necessity-of-use selection part.
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公开(公告)号：US20220003794A1
公开(公告)日：2022-01-06
申请号：US17481427
申请日：2021-09-22
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Chie YABUTANI , Takumi YAMADA , Masahiko IIJIMA
Abstract: An automatic analysis device is provided with: a sample disk for holding a sample container that accommodates a sample; a reagent disk for holding a reagent container that accommodates a reagent; at least two different measuring units that respectively perform different types of analyses; a control part that controls the measuring units; and a display part that displays: a work flow area in which the flow of operation of the two or more measuring units is displayed; and an overview area in which the usable or unusable states of the respective measuring units are displayed, wherein the overview area has a unit necessity-of-use selection part that can select whether using each of the measuring units is necessary, and the control part controls the display part so as to change the display of the work flow area on the basis of the information set in the unit necessity-of-use selection part.
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