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公开(公告)号：US20150323557A1
公开(公告)日：2015-11-12
申请号：US14410113
申请日：2013-06-20
Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
Inventor： Hideto TAMEZANE , Isao YAMAZAKI , Masaharu NISHIDA , Kumiko KAMIHARA
CPC classification number: G01N35/1016 , G01N35/00584 , G01N35/00663 , G01N35/1002 , G01N35/1009 , G01N2035/00673 , G01N2035/1018 , G01N2035/1025
Abstract: An automatic analyzer that accurately detects dispensation abnormality in dispensation conditions with small suction quantities has a statistical distance calculation unit that calculates characteristic variables regarding a sucking operation in the first dispensation and calculates a statistical distance D from reference data to the characteristic variables extracted from a memory. A comparison unit compares the statistical distance D with a preset threshold value stored in memory and if the statistical distance D is less than the preset threshold value, the first discharging operation is performed. A controller judges whether a single-handed judgment based on a dispensation quantity condition of the second or subsequent dispensation is possible or not. If the single-handed judgment is impossible, reference data is selected based on a judgment quantity regarding the first dispensation. Whether the sucking operation in the second or subsequent dispensation is normal or abnormal is judged based on the selected reference data.
Abstract translation: 统计距离计算单元计算在第一分配中的抽吸操作的特性变量，并计算从参考数据到从存储器提取的特征变量的统计距离D的统计距离计算单元， 。 比较单元将统计距离D与存储在存储器中的预设阈值进行比较，并且如果统计距离D小于预设阈值，则执行第一次放电操作。 控制器判断基于第二次或其后的分配的分配量条件的单手判断是否可行。 如果单手判断不可能，则基于关于第一分配的判定量来选择参考数据。 基于所选择的参考数据来判断第二次或随后的分配中的抽吸操作是正常还是异常。
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公开(公告)号：US20200348325A1
公开(公告)日：2020-11-05
申请号：US16642934
申请日：2018-10-05
Applicant: Hitachi High-Technologies Corporation
Inventor： Takamichi MORI , Akihiro NOJIMA , Isao YAMAZAKI
Abstract: Since a detergent is a consumption article, it is desirable that a use amount of the detergent be as small as possible in a limit that the washing effect is not substantially reduced. Provided is an automatic analyzer which includes a syringe pump which is connected to a probe and performs the body aspiration and discharge, a feed pump which feeds washing water for washing the inside of the probe to the probe via the syringe pump and a controller which controls the dispensing mechanism and the syringe pump, in which the controller, in a case of washing the probe by sucking a detergent in the probe a plurality of times, controls the syringe pump so as to discharge the detergent after sucking the detergent and to suck the next detergent without feeding the washing water to the probe by the feed pump.
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公开(公告)号：US20190316963A1
公开(公告)日：2019-10-17
申请号：US16472129
申请日：2017-10-24
Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
Inventor： Takeshi ISHIDA , Isao YAMAZAKI , Sakuichiro ADACHI , Shin IMAMURA
Abstract: An automatic analysis apparatus comprises: a light source generating light having a center wavelength equal to or shorter than 340 nm; a fluorescent substance excited by the light source light, and generates light together with transmitted light from the light source, having a wavelength of 340 nm to 800 nm; a condenser lens; at least one slit; a reaction cell holding a reaction solution where a specimen and reagent are mixed, and that the light source light and the light from the fluorescent substance enter; and a detector that detects light transmitted through the reaction cell. The light source, fluorescent substance, condenser lens, and slit are provided along a straight light corresponding to the optical axis. The width of the slit's opening is equal to or narrower than the width of a ray forming an image of the light source at the position of the slit.
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公开(公告)号：US20190310275A1
公开(公告)日：2019-10-10
申请号：US16307787
申请日：2017-04-24
Inventor： Takeshi ISHIDA , Sakuichiro ADACHI , Yoshihiro YAMASHITA , Shunichirou NOBUKI , Hisashi YABUTANI , Isao YAMAZAKI , Michaela WINDFUHR , Bernhard HAUPTMANN , Simon KUESTER
Abstract: An automatic analyzer is equipped with a sterilization mechanism removably attached to an opening of a container that holds a reagent and having an ultraviolet light generation section that radiates ultraviolet light; a suction nozzle removably attached, together with the sterilization mechanism, to the opening of the container; an analysis section adding the reagent drawn in by suction from the container via the suction nozzle to the reagent, and executing an analysis operation; and a control section exercising variable control over an irradiation light intensity of the ultraviolet light generated by the ultraviolet light generation section.
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公开(公告)号：US20170089938A1
公开(公告)日：2017-03-30
申请号：US15310808
申请日：2015-04-22
Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
Inventor： Hideto TAMEZANE , Isao YAMAZAKI , Masaharu NISHIDA , Kumiko KAMIHARA
CPC classification number: G01N35/1009 , G01L19/0092 , G01N1/14 , G01N35/00 , G01N35/00732 , G01N35/025 , G01N35/10 , G01N2035/009 , G01N2035/1018
Abstract: A pressure signal process unit acquires data under a predetermined condition and a statistic distance between the acquired data and determination-purpose reference data stored in a storage unit is calculated. It is determined whether or not dispensing is abnormal and whether the determination-purpose reference data is suitable for an abnormality detection function to be properly fulfilled. If 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. If a difference therebetween is greater than a predetermined threshold value, a possibility that an automatic analyzer may have an abnormal component or that a failure may occur in the automatic analyzer is determined, and the result is transmitted to cause a display device to display an alarm.
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Patent Agency Ranking
公开(公告)号：US20210140894A1
公开(公告)日：2021-05-13
申请号：US16620697
申请日：2018-04-10
Applicant: Hitachi High-Technologies Corporation
Inventor： Akihiro NOJIMA , Takamichi MORI , Isao YAMAZAKI , Kohei NONAKA
Abstract: An object of the present invention is to provide a technology in which an amount of pigment carried from a pigment solution can be accurately measured at the time of testing a surface state of a dispensing probe on the basis of the amount of carried pigment. In a test method according to the present invention, a surface state of a dispensing probe is evaluated on the basis of an amount of pigment carried from an acidic pigment solution into a solution including no pigment.
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公开(公告)号：US20160334432A1
公开(公告)日：2016-11-17
申请号：US15111006
申请日：2015-01-13
Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
Inventor： Masaru MIYAZAKI , Takamichi MORI , Kazuhiro NAKAMURA , Isao YAMAZAKI
CPC classification number: G01N35/1004 , G01N21/75 , G01N2035/0453
Abstract: An automatic analyzer has a washing tank providing water for washing a reagent or sample probe is. The washing water from a washing nozzle spreads from a throttle portion and is divided into right and left flows after colliding with a vent plate provided in an overflow portion of the washing tank. The washing water flows between the vent plate and the inner wall of the overflow portion, and the flows join behind the vent plate. After joining, the washing water flows downward along the vent plate and the inner wall of the overflow portion and then is drained. Because a space is created between the washing water which has collided with the vent plate and the washing water joined behind the vent plate, the washing water is prevented from completely covering the overflow portion, and the airflow can be secured during the drainage.
Abstract translation: 自动分析仪具有提供用于洗涤试剂或样品探针的水的洗涤槽。 来自洗涤喷嘴的洗涤水从节流部分扩散，并且在与设置在洗涤槽的溢流部分中的排气板碰撞之后被分成左右流动。 洗涤水在通气板和溢流部分的内壁之间流动，并且流体流入通风板后面。 接合后，洗涤水沿着排气板和溢流部分的内壁向下流动，然后排出。 由于在与排气板碰撞的洗涤水和与排气板后面连接的洗涤水之间产生空间，因此防止洗涤水完全覆盖溢流部，并且可以在排水期间确保气流。
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公开(公告)号：US20200378997A1
公开(公告)日：2020-12-03
申请号：US16463965
申请日：2017-11-08
Applicant: Hitachi High-Technologies Corporation
Inventor： Shinji AZUMA , Isao YAMAZAKI , Masashi FUKAYA , Takumi ITO
IPC: G01N35/10
Abstract: The object of the invention is to avoid a decrease in dispensing accuracy of a sample, a reagent, or the like as a temperature changes. In an automatic analyzer, a dispensing nozzle sucks the sample from a sample container holding the sample and discharges the sample to a reaction container. A syringe pump controls an amount of change in a volume of water. A first pipe connects the dispensing nozzle and the syringe pump. An electromagnetic valve flows or stops the water. A second pipe connects the electromagnetic valve and the syringe pump. A branch pipe branches the water. A third pipe connects the electromagnetic valve and the branch pipe. A case accommodates at least the syringe pump, the first pipe, the electromagnetic valve, the second pipe, the branch pipe, and the third pipe. Further, the third pipe includes a heat exchange unit that performs heat exchange of the water.
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公开(公告)号：US20200041530A1
公开(公告)日：2020-02-06
申请号：US16483458
申请日：2018-01-16
Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
Inventor： Masafumi SHIMADA , Isao YAMAZAKI , Masaharu NISHIDA , Yoko INOUE
Abstract: The purpose of the present invention is to provide an automatic analysis device capable of determining, through a simple processing, whether or not idle aspirate has occurred. The automatic analysis device according to the present invention determines whether or not idle aspirate has occurred, by calculating a parameter which specifies whether or not the length of a portion of a path through which the sample passes inside a dispensing probe is shorter than that during normal aspirate, the portion being actually filled with a sample (see FIG. 4).
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公开(公告)号：US20180161829A1
公开(公告)日：2018-06-14
申请号：US15580910
申请日：2016-06-27
Applicant: Hitachi High-Technologies Corporation
Inventor： Yosuke HORIE , Tomohiro INOUE , Takamichi MORI , Kouhei NONAKA , Masato ISHIZAWA , Isao YAMAZAKI , Hitoshi TOKIEDA , Akihiro NOJIMA
Abstract: An ultrasonic cleaner according to the present invention includes a vibrating part 222 for enlarging ultrasonic vibration of a BLT 100 on a side surface side in a cleaning tank 211, generates cavitation by the ultrasonic vibration with respect to cleaning liquid supplied into the cleaning tank 211 by driving the BLT 100 on the periphery of a nozzle without unevenness, and is capable of performing effective nozzle cleaning.
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