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41. 发明专利

JP2012029972A High sensitivity magnetic detection device 有权
标题翻译：高灵敏度磁性检测装置
公开(公告)号：JP2012029972A
公开(公告)日：2012-02-16
申请号：JP2010173467
申请日：2010-08-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENPUKU KEIJI , KANDORI AKIHIKO , OGATA KUNIOMI , KAWABATA RYUZO
IPC分类号： A61B5/055 , G01R33/36
CPC分类号： G01R33/445 , G01N24/08 , G01R33/34 , G01R33/3621
摘要： PROBLEM TO BE SOLVED: To provide a detection coil shape that minimizes the increase of an ac resistance component generated by a multi-layer winding of the detection coil, and to provide a high sensitivity magnetic detection device.SOLUTION: The detection coil is formed into a detection coil shape having the number of layers that are fewer than twice a number n of layers calculated by the formula (10), wherein a litz wire employing a strand having a minimum diameter is used for the detection coil. Regarding voltage obtained by the detection coil, voltage or current is amplified, thereby achieving the high sensitive magnetic detection device.
摘要翻译：要解决的问题：提供一种检测线圈形状，其使由检测线圈的多层绕组产生的交流电阻分量的增加最小化，并提供高灵敏度的磁检测装置。解决方案：检测线圈形成为具有小于由公式（10）计算的n个层数的两倍的层数的检测线圈形状，其中使用具有最小直径的线的绞合线为用于检测线圈。关于由检测线圈获得的电压，电压或电流被放大，从而实现高灵敏度磁检测装置。版权所有（C）2012，JPO＆INPIT

42. 发明专利

JP2005095197A Biological testing apparatus 有权
标题翻译：生物测试仪器
公开(公告)号：JP2005095197A
公开(公告)日：2005-04-14
申请号：JP2003329299
申请日：2003-09-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANDORI AKIHIKO , MIYASHITA TAKESHI , TSUKADA KEIJI , UCHIDA NORITAKA , KAWAGUCHI HIDEO , SAKAIRI MINORU
IPC分类号： A61B5/05 , A61B5/11
CPC分类号： A61B5/1101 , A61B5/4082 , A61B5/6824 , A61B5/6826 , A61B5/6828 , A61B5/6838 , A61B5/7239
摘要： PROBLEM TO BE SOLVED: To provide a biological testing apparatus which detects a regional movement of a living body. SOLUTION: The biological testing apparatus includes an alternating current generating circuit 9, a converting means 10 which converts an alternating voltage output from the alternating current generating circuit to an alternating electric current, a transmitting coil 2 which passes the alternating electric current output from the converting means, a receiving coil 1 which detects an alternating magnetic field generated by the transmitting coil, an amplifying circuit 3 to amplify the electric voltage generated by the magnetic field which is induced by the receiving coil, a demodulating means 4 which demodulates an output signal of the amplifying circuit, a low-frequency permeating filter 5 which is input with the output signal of the demodulating means, a means to dispose the transmitting coil at a first region of the living body and the receiving coil at a second region of the living body, a storing means 8 which stores the output of the low-frequency permeating filter in a moving condition of the first region and the second region of the living body, and a display means which displays the data stored in the storing means or a result of analysis of the stored data. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种检测活体的区域运动的生物检测装置。解决方案：生物测试装置包括交流发生电路9，将从交流发电电路输出的交流电压转换为交流电流的转换装置10，使交流电流输出从转换装置，检测由发送线圈产生的交变磁场的接收线圈1，放大由接收线圈感应的磁场产生的电压的放大电路3，解调装置4 放大电路的输出信号，与解调装置的输出信号一起输入的低频透过滤光器5，将发射线圈配置在生物体的第一区域和接收线圈的第二区域生物体，存储装置8，其将低频渗透滤波器的输出存储在移动c中生物体的第一区域和第二区域的显示装置，以及显示存储在存储装置中的数据或存储数据的分析结果的显示装置。版权所有（C）2005，JPO＆NCIPI

43. 发明专利

JP2005080951A Living body magnetic field measuring apparatus 有权
标题翻译：生活体磁场测量装置
公开(公告)号：JP2005080951A
公开(公告)日：2005-03-31
申请号：JP2003317705
申请日：2003-09-10
申请人： Hitachi High-Technologies Corp , Hitachi Ltd , 株式会社日立ハイテクノロジーズ , 株式会社日立製作所
发明人： OGATA KUNIOMI , KANDORI AKIHIKO , MIYASHITA TAKESHI , TSUKADA KEIJI
IPC分类号： G01R33/28 , A61B5/04 , A61B5/0452 , A61B5/05 , A61B5/055 , A61B6/03 , G06T1/00 , G06T15/00
CPC分类号： A61B5/04007 , A61B5/0044
摘要： PROBLEM TO BE SOLVED: To provide a living body magnetic field measuring apparatus capable of visualizing the electric current distribution within a cardiac muscle according to a heart figure. SOLUTION: A magnetic component in the z direction perpendicular to the breast plane is measured from two directions of the front plane 17 and the rear plane 18 of a breast portion, and the electric current distribution and the intensity distribution of the electric current distribution in the two direction are calculated. A three dimensional standard model are made according to the average data relating to the heart figure of a healthy person, and position alignment is performed using the coordinate of a nodus sinuatrialis and the coordinate of a left ventricle region. In a set boundary 20, a weighting factor is calculated in which the electric current distribution and the intensity distribution of the electric current distribution in the front plane and the rear plane of the breast portion best coincide, after correcting an electric current level, the electric current distribution and the intensity distribution of the electric current distribution in the two direction are projected to the three dimensional standard model to obtain the three dimensional display of an electric current distribution image within the cardiac muscle. A white region 31 with the small intensity of an electric current vector, a gray region 32 with the middle intensity of the same, and a black region 33 with the large intensity of the same, and electric vectors 30 are displayed on the standard model 29 after the position alignment. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种能够根据心脏图形来显示心肌内的电流分布的生物体磁场测量装置。解决方案：从乳房部分的前平面17和后平面18的两个方向测量垂直于乳房平面的z方向上的磁性分量，并且电流分布和电流强度分布计算两个方向的分布。根据与健康人的心脏图像相关的平均数据制作三维标准模型，并使用鼻窦的坐标和左心室区域的坐标进行位置对准。在设定边界20中，计算加权系数，其中，校正电流水平之后，乳房部分的前面和后面中的电流分布的电流分布和强度分布最好一致，将电流分布和两个方向上的电流分布的强度分布投影到三维标准模型，以获得心肌内的电流分布图像的三维显示。具有小电流矢量强度的白色区域31，具有中等强度的灰色区域32和具有大强度的黑色区域33以及电子矢量30显示在标准模型29上位置对齐后。版权所有（C）2005，JPO＆NCIPI

44. 发明专利

JP2004041739A Method for displaying and printing biomagnetic field measurement data 审中-公开
公开(公告)号：JP2004041739A
公开(公告)日：2004-02-12
申请号：JP2003206740
申请日：2003-08-08
申请人： Hitachi Ltd , Hitachi Sci Syst Ltd , 株式会社日立サイエンスシステムズ , 株式会社日立製作所
发明人： SUZUKI HIROYUKI , TSUKADA KEIJI , KANDORI AKIHIKO , MACHIDA KAZUHISA , TESHIGAWARA KENJI , MISHIRO KAZUHIRO
IPC分类号： G01R33/035 , A61B5/05 , G06T1/00
摘要： PROBLEM TO BE SOLVED: To provide a highly operative display method for biomagnetic field measurement data by measuring magnetic field intensities of a plurality of measuring positions. SOLUTION: The display method for the biomagnetic field measurement data uses a computer 8 having a displaying screen 8-1, measures magnetic fields generated from the body of a subject 2 with a measuring sensor at a plurality of measuring positions, and displays measurement signals on the screen. For overlapping and displaying the measuring positions and the measuring positions of the subject 2, together with the measurement data on the screen, the computer 8 selects them from the database stored therein according to the information and measurement conditions of the subject 2, and displays them on the displaying screen 8-1 together with the measurement data. COPYRIGHT: (C)2004,JPO

45. 发明专利

JP2002291713A BIOMAGNETISM MEASUREMENT DEVICE AND MEASUREMENT METHOD 失效
公开(公告)号：JP2002291713A
公开(公告)日：2002-10-08
申请号：JP2001094555
申请日：2001-03-29
申请人： HITACHI LTD
发明人： MURAKAMI MASAHIRO , KANDORI AKIHIKO , TESHIGAWARA KENJI , SASABUCHI HITOSHI
IPC分类号： G01R33/035 , A61B5/05
摘要： PROBLEM TO BE SOLVED: To provide a biomagnetism measurement device having a function separating magnetic signals generated from two different portions, e.g. a magnetic signal generated from a brain or a heart of an unborn baby obtained from a SQUID fluxmeter and a magnetic signal generated from a mother's body. SOLUTION: This biomagnetism measurement device has a means getting arithmetic mean of magnetic signal waveforms measured by the SQUID fluxmeter by use of a trigger signal that is one channel waveform of a magnetic waveform from the SQUID fluxmeter and an input signal waveform except the fluxmeter, and subtracting a waveform after application of base line correction processing from the measured magnetic signal waveform by use of the trigger signal; and a means displaying a waveform obtained from the subtracting means.

46. 发明专利

JP2002136494A METHOD FOR MEASURING MAGNETIC FIELD 失效
公开(公告)号：JP2002136494A
公开(公告)日：2002-05-14
申请号：JP2001086628
申请日：2001-03-26
申请人： HITACHI LTD
发明人： SUZUKI DAISUKE , NINOMIYA ATSUSHI , MIYASHITA TAKESHI , KANDORI AKIHIKO , TSUKADA KEIJI , YOKOZAWA KOICHI
IPC分类号： G01R33/02 , A61B5/05 , G01R33/035
摘要： PROBLEM TO BE SOLVED: To provide a magnetic field measuring method through the use of sheets with high magnetic permeability. SOLUTION: A magnetic field shielding device 40 is the one where a plurality of sheets having high magnetic permeability are arranged by partial superimposition on pluralities of non-magnetic cylindrical members which is arranged by concentrically enclosing a first direction axis to have a hollow part, where the most inner cylindrical member is provided with first and second openings 41 and 42 at both ends in a first direction and with a third opening being put through the cylindrical members in a vertical direction with respect to the first direction axis and also by which a component in the vertical direction concerning the first direction in an extraneous magnetic field is shielded in the internal space of the most inner cylindrical member. A living body is loaded on loading devices in the internal space of the device 40 or the loading devices where the living body is loaded are carried into the internal space. The bottom surface of a cryostat 50 for keeping low temperature in pluralities of SQUID flux meters is arranged to face the front surface of the living body and, then, the component in the vertical direction concerning the first direction in the magnetic field generated from the living body is detected by the SQUID flux meters. Thus, the magnetic field is measured with high performance.

47. 发明专利

JP2002125946A BIOLOGICAL MAGNETIC FIELD MEASURING INSTRUMENT 失效
公开(公告)号：JP2002125946A
公开(公告)日：2002-05-08
申请号：JP2000324685
申请日：2000-10-19
申请人： HITACHI LTD
发明人： KANDORI AKIHIKO , MIYASHITA TAKESHI , SUZUKI DAISUKE , YOKOZAWA KOICHI , TSUKADA KEIJI
IPC分类号： A61B5/05 , A61B5/04 , A61B5/0402
摘要： PROBLEM TO BE SOLVED: To provide a biological magnetic field measuring instrument capable of detecting the flow of blood flowing through the internal organs of a living body and mechanical movement accompanying the movement of the internal organs. SOLUTION: The instrument is provided with a plurality of SQUID magnetic flux meters for detecting a magnetic field generated from the living body 8, the driving circuit 4 of the SQUID magnetic flux meters, a computer 6 for collecting the output signal of the driving circuit as magnetic field waveform data generated from the living body to perform the arithmetic processing of the magnetic field waveform data, a display 6 for displaying the result of arithmetic processing, signal processing circuits (Figure 3: 32 to 36) for performing the signal processing of the output signal of the driving circuit, an oscillator 9 for generating high frequency current to be made to flow through the living body, conductors 13, 14 for making the high frequency current flow through the living body, the wires 11, 12 to be stuck to the plurality of points on the surface of the living body and electrically connected with the wires and an electricity meter. The computer performs arithmetic processing for obtaining the first order differential magnetic field waveform concerning the time axis of a magnetic field waveform in a normal direction obtained as the output signals of the signal processing circuits and the display displays the first order differential magnetic field waveform. Consequently, the change of impedance can be observed two-dimensionally.

48. 发明专利

JP2001299714A METHOD FOR MEASURING BIOLOGICAL MAGNETIC FIELD 失效
公开(公告)号：JP2001299714A
公开(公告)日：2001-10-30
申请号：JP2001086633
申请日：2001-03-26
申请人： HITACHI LTD
发明人： MIYASHITA TAKESHI , TSUKADA KEIJI , KANDORI AKIHIKO , KONDO SHOJI , SASABUCHI HITOSHI
IPC分类号： A61B5/05
摘要： PROBLEM TO BE SOLVED: To provide a method for measuring a biological magnetic filed for obtaining a synthesized image of an image expressing biological function information and a pattern image. SOLUTION: Marks expressing (xz) and (yz) surfaces of a coordinate system on the peripheral face of a container of a SQUID fluximeter arranged in the directions of (x) and (y) are provided. A first laser spreading in the form of a fan within the (xz) surface, a second laser spreading in the form of a fan within the (yz) surface and a third laser irradiating the surface of a bed in the form of a dot diagonally so that it may cross the foregoing lasers are provided, the irradiation bearing of the second laser and the position of the bed in the (x) direction are adjusted so that the second laser may pass first and second markers arranged on the xiphoid process and jugular notch and irradiate the (xz) mark, the irradiation bearing of the first laser and the position of the bed in the (y) direction are adjusted so that the first laser may irradiate the (xz) mark and pass the first marker, and the bed is moved in the (z) direction so that the third laser may irradiate the first marker. Positioning of a subject for examination to obtain a synthetic image can be executed easily.

49. 发明专利

JP2001153936A 2-SQUID FLUXMETER AND ITS DRIVING METHOD 失效
公开(公告)号：JP2001153936A
公开(公告)日：2001-06-08
申请号：JP33381699
申请日：1999-11-25
申请人： HITACHI LTD
发明人： TSUKAMOTO AKIRA , TAKAGI KAZUMASA , FUKAZAWA TOKUMI , SAOTOME ETSUHISA , KANDORI AKIHIKO
IPC分类号： G01R33/035 , A61B5/05 , G01N27/72 , H01L39/22
摘要： PROBLEM TO BE SOLVED: To provide a fluxmeter with high performance using superconducting quantum interference devices(SQUID) of a high-temperature superconducting material. SOLUTION: Two SQUIDs are serially connected, and a common detecting coil is connected to the two SQUIDs. A plurality of current and voltage terminals are provided for the detecting coil to make a bias current through a plurality of optimum paths.

50. 发明专利

JP2001104265A BIOLOGICAL MAGNEIC FIELD MEASUREMENT EQUIPMENT 失效
公开(公告)号：JP2001104265A
公开(公告)日：2001-04-17
申请号：JP2000247909
申请日：2000-08-09
申请人： HITACHI LTD
发明人： KANDORI AKIHIKO , MIYASHITA TAKESHI , TSUKADA KEIJI , SASABUCHI HITOSHI , SUZUKI HIROYUKI
IPC分类号： G01R33/035 , A61B5/05
摘要： PROBLEM TO BE SOLVED: To provide biological magnetic field measurement equipment that performs averaging processing quickly. SOLUTION: Method for measuring biological magnetic field comprising displaying means 8-1 for the measured magnetic field using plural number of magnetic sensors by repeated measurement of the magnetic field generated from the heart of a biological body, and displaying at the same time in the same screen the measured magnetic field wave from that is obtained by indicating time interval including peak position of repeatedly measured magnetic field wave from by pre-determined magnetic sensor, performing averaging processing for each measured magnetic field wave form over the time interval including peak positions in magnetic field wave form measured by each magnetic sensor and performing averaging processing for magnetic field wave form measured by any one or plural number of magnetic sensor, and the measured magnetic field wave form that is measured by any one or plural number of magnetic sensor. Thereby, peak detection efficiency is improved.

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