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Hitachi High-Technologies

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Schaumburg, IL, United States
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Patent
Hitachi High-Technologies | Date: 2017-04-05

Disclosed is an automatic analysis device in which a check item at a time of an analysis start can be set in accordance with a skill level of an operator, an analysis can be performed after the check item being displayed and confirmed, and erroneous measurement caused due to a missed check can be prevented. The check item such as checking the remaining quantity of a reagent or the like displayed in a check screen before the analysis start can be set for each type of operator, each day, each time. The set check item is configured to be displayed in a screen before the analysis start, and unless the operator confirms the check item, the analysis start is not allowed in principle. An automatic analysis device which can prevent erroneous measurement caused due to a missed check of the operator before the analysis start is realized.


Patent
Hitachi High-Technologies | Date: 2017-02-08

An automatic analytical apparatus includes a reaction container for mixing a sample with a reagent to react the sample to the reagent, a measurement unit that irradiates a reaction solution in the reaction container with light and measures the intensity of transmitted light or scattered light, a control unit that processes time-series light intensity data obtained through the measurement in the measurement unit, a storage unit that stores one or more approximation functions each approximating to a time-series change in the light intensity data, and an output unit that outputs a processing result of the control unit. The control unit selects any one of the approximation functions stored in the storage unit, calculates an approximate curve indicating a time-series change in the light intensity data using the selected approximation function, calculates deviation feature information based on deviation information between the light intensity data and the approximate curve, and detects and classifies an abnormality included in the light intensity data using the deviation feature information.


Patent
Hitachi High-Technologies | Date: 2017-01-18

In order to increase the accuracy of dispensing liquid from a sealed liquid holding container without increasing device complexity, pressures inside and outside the sealed liquid holding container are measured with a pressure sensor connected to a dispensing probe, and the amount of discharge operation of a pump is corrected in accordance with the measured pressures. The amount of operation of the pump is corrected by calculating the amount of deformation of a dispensing flow passageway due to pressure change.


Patent
Hitachi High-Technologies | Date: 2017-03-22

The pressure signal process unit 98 acquires data under a predetermined condition. A calculation unit 94 calculates a statistic distance between the acquired data and determination-purpose reference data stored in a storage unit 93. An abnormal dispensing determination unit 97 determines whether or not dispensing is abnormal. A suitability verification unit 95 verifies whether the determination-purpose reference data is suitable for an abnormality detection function to be properly fulfilled. In a case where it is determined that the determination-purpose reference data is not suitable for an abnormality detection function to be properly fulfilled, temporary determination-purpose reference data is prepared so as to be compared with the previously acquired data under a predetermined condition. In a case where a difference therebetween is greater than a predetermined threshold value, the suitability verification unit 95 determines a possibility that an automatic analyzer may have an abnormal component or that a failure may occur in the automatic analyzer, transmits the result to the control instruction unit 99, and causes a display device 92 to display an alarm. In this manner, it is possible to accurately detect a state where component replacement or device adjustment is required, without being affected by a time-dependent change or replacement of each component configuring a channel.


Patent
Hitachi High-Technologies | Date: 2017-01-25

Provided is a test apparatus in which a test for bacterial identification or antimicrobial susceptibility can be promptly determined. A division state of bacteria is monitored by performing microscopic observation of shapes and the number of the bacteria in each of wells in a culture plate for bacterial identification culture or an antimicrobial susceptibility test, and it is determined whether or not the bacteria grow in a stage shifted from an induction phase to a logarithmic phase, with reference to an image obtained through microscopic observation. In addition, determination performed based on turbidity in the related art may be combined with determination performed based on microscopic observation in which change and the like in the shapes of the bacteria are monitored. Accordingly, it is possible to realize a highly accurate test result.


Patent
Hitachi High-Technologies | Date: 2017-03-29

The purpose of the present invention is to provide a sample dispensing device in which device trouble is less likely to occur at the time of discarding a used nozzle tip, and with which it is possible to discard a nozzle tip safely and easily. More specifically, disclosed is a sample dispensing device that sucks a liquid sample from a predetermined container and then discharges the sample to another container, the sample dispensing device comprising: a nozzle tip that sucks and holds the sample; a dispensing nozzle to which the nozzle tip can be detachably attached via a fitting part; a dispensing nozzle position control means that controls the position of the dispensing nozzle with respect to the predetermined container and the other container; a nozzle tip removing means that removes the nozzle tip from the dispensing nozzle; and a discarding box into which water can be supplied, and in which the nozzle tip removed from the dispensing nozzle is discarded. The nozzle tip is made of a water-soluble material, and after being removed from the dispensing nozzle by the nozzle tip removing means, the nozzle tip is dissolved by water in the discarding box.


Patent
Hitachi High-Technologies | Date: 2017-05-03

An automatic analysis apparatus according to the present invention is capable of replacing circulated water in a reaction vessel and continuously cooling a light source lamp without stopping an operation for measuring a specimen. In an operation state, a drain electromagnetic valve 49 is opened, and reaction vessel water 18 is drained outside. When the water level reaches a measurement limit water level 45, the drain electromagnetic valve 49 is closed. The reaction vessel water 18 is supplied by starting a water supply pump and opening a water supply electromagnetic valve 48. When a first water level detector 41 confirms that the water level has reached a full water level 44, the water supply electromagnetic valve 48 is closed, and the water supply pump 54 is stopped. In a state other than the operation state, the reaction vessel water 18 is drained outside. When a third water level detector 43 confirms that the water level has reached a circulation limit water level 46, the drain electromagnetic valve 49 is closed. When the water supply electromagnetic valve 48 is opened and the reaction vessel water 18 reaches the full water level 44, the water supply electromagnetic valve 48 is closed and the water supply is stopped.


Patent
Hitachi High-Technologies | Date: 2017-01-05

A defect inspection method includes an illumination light adjustment step of adjusting light emitted from a light source, an illumination intensity distribution control step of forming light flux obtained in the illumination light adjustment step into desired illumination intensity distribution, a sample scanning step of displacing a sample in a direction substantially perpendicular to a longitudinal direction of the illumination intensity distribution, a scattered light detection step of counting the number of photons of scattered light emitted from plural small areas in an area irradiated with illumination light to produce plural scattered light detection signals corresponding to the plural small areas, a defect judgment step of processing the plural scattered light detection signals to judge presence of a defect, a defect dimension judgment step of judging dimensions of the defect in each place in which the defect is judged to be present and a display step of displaying a position on sample surface and the dimensions of the defect in each place in which the defect is judged to be present.


Patent
Hitachi High-Technologies | Date: 2017-05-03

An automatic analyzer 100 having a transport device 23 that transports specimen racks 2, 3 on which one or more specimen containers 1 containing a specimen to be analyzed are mounted by the specimen containers being arranged equidistantly in a transport direction and an analysis unit that analyzes the specimen contained in the specimen container 1, wherein the transport device 23 includes a specimen rack gripping mechanism 59 that grips the specimen rack on a first transport path on which the specimen racks 2, 3 are transported by the specimen rack being sandwiched between gripping plates from both sides of flanks in the transport direction to transport the specimen rack along the first transport path and a gripping width controller 28 that controls a distance between the gripping plates of the specimen rack gripping mechanism in accordance with a width of the specimen rack. Accordingly, an automatic analyzer capable of transporting a plurality of types of the specimen racks while suppressing an increase in size of the apparatus and also an increase in cost can be provided.


Patent
Hitachi High-Technologies | Date: 2017-04-12

A display unit displays, on a single screen (200), a first display area (211) configured from a first area (211 a) corresponding to the position on a reagent disc at which a reagent container is disposed and a second display area (212) configured from a second area (212a) corresponding to the position on a reagent loader at which a reagent container is disposed. A control unit changes the display state of the first area (211a) on the basis of whether a reagent container is placed at a position on the reagent disk corresponding to the first area (211a) and reagent information for the reagent accommodated in the placed reagent container and changes the display state of the second area (212a) on the basis of whether a reagent container is placed at a position on the reagent loader (6) corresponding to the second area (212a) and reagent-container-conveyance-state information for the placed reagent container.

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