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1. 发明专利

JP2010240059A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2010240059A
公开(公告)日：2010-10-28
申请号：JP2009090061
申请日：2009-04-02
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： MIYAMOTO YOSHIYUKI
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide an open MRI apparatus with wide opening height without sharply changing the magnet side and with similar operability as that of a conventional berth by thinning a top plate in the open MRI apparatus.
SOLUTION: The MRI apparatus is constituted of MRI which includes: an open magnet, a subject; a gradient magnetic field coil; a transmission/reception coil; a transmission/reception system; a gradient magnetic field power source; and a computer. The apparatus has a thin top plate which can be floated from a base by air pressure, and a berth base which constrains a moving direction and moving distance of the top plate. By this structure, the open MRI apparatus with the wide opening height is provided which thins the top plate, the magnet side of which is not sharply changed, and which has the similar operability as that of the conventional berth.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有宽开口高度的开放MRI设备，而不会通过在开放式MRI设备中使顶板变薄来锐化地改变磁体侧并具有与常规泊位类似的可操作性。解决方案：MRI装置由MRI构成，其包括：开放磁体，受试者; 梯度磁场线圈; 发送/接收线圈; 发送/接收系统; 梯度磁场电源; 和电脑。该装置具有可以通过空气压力从基座浮起的薄的顶板，以及限制顶板的移动方向和移动距离的泊位台。通过这种结构，提供了具有宽开口高度的开放式MRI装置，其使磁体侧不急剧变化的顶板，其具有与常规泊位类似的可操作性。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2007020978A Magnetic resonance imaging apparatus 审中-公开
标题翻译：磁共振成像装置
公开(公告)号：JP2007020978A
公开(公告)日：2007-02-01
申请号：JP2005209494
申请日：2005-07-20
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： MIYAMOTO YOSHIYUKI , YAMAMIZU TAKU
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a vertical magnetic field MRI apparatus capable of improving visibility of an operator or doctor to a subject, liberated feeling of the subject located in a test area, and flexibility of the apparatus configuration in a scan room.
SOLUTION: The apparatus comprises: a static magnetic field generating means, which is provided with a pair of magnets opposed in a vertical direction so as to sandwich the test area where the subject is located, for generating a static magnetic field in the test area; a pair of supports for supporting one of the pair magnets against the other; and a mirror provided at least on a surface of either of the supports opposing the subject.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够提高对受试者的操作者或医生的可视性的垂直磁场MRI设备，位于测试区域中的被摄体的释放感觉以及扫描室中的装置配置的灵活性。解决方案：该装置包括：静磁场产生装置，其设置有一对在垂直方向上相对的磁体，以夹住被摄体所在的测试区域，以产生静止磁场测试区; 一对支撑件，用于将一对磁铁中的一个支撑在另一个上; 以及至少在与所述对象相对的任何一个支撑体的表面上设置的反射镜。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2008307309A Magnetic resonance imaging apparatus 审中-公开
标题翻译：磁共振成像装置
公开(公告)号：JP2008307309A
公开(公告)日：2008-12-25
申请号：JP2007159778
申请日：2007-06-18
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： SAKAMOTO ISAO , MIYAMOTO YOSHIYUKI
IPC分类号： A61B5/055 , G01R33/42
摘要： PROBLEM TO BE SOLVED: To provide a high-definition and energy-saving magnetic resonance imaging apparatus negating a leakage magnetic field from a system transformer or reducing it to such an extent as preventing the generation of artifact on MRI images.
SOLUTION: A leakage magnetic field negation coil 117 for negating the leakage magnetic field is wound on a member 118 covering a primary coil and a secondary coil of the system transformer 115 and a relationship between the primary current of the system transformer and the leakage magnetic field intensity is prestored in a storage device. A negation current control device 120 generates a current for negating the leakage magnetic field based on the relationship between the primary current and the leakage magnetic field intensity stored in the storage device and the primary current detected by a primary current detector 119 and the current is supplied to the leakage magnetic field negation coil 117.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种高清晰度和节能的磁共振成像装置，其将来自系统变压器的泄漏磁场或将其减小到防止在MRI图像上产生伪影的程度。解决方案：用于否定泄漏磁场的漏磁场否定线圈117被卷绕在覆盖系统变压器115的初级线圈和次级线圈的构件118上，并且系统变压器的初级电流与泄漏磁场强度预先存储在存储装置中。否定电流控制装置120基于存储在存储装置中的初级电流和漏磁场强度之间的关系以及由初级电流检测器119检测的初级电流产生用于否定泄漏磁场的电流，并且提供电流到泄漏磁场否定线圈117.版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008028429A Superconducting magnet apparatus and magnetizing method utilizing superconducting multilayered complex 有权
标题翻译：超级磁铁装置和使用超级多层复合材料的磁化方法
公开(公告)号：JP2008028429A
公开(公告)日：2008-02-07
申请号：JP2007268536
申请日：2007-10-16
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： HONNA TAKAO , TAKUMA YUTAKA , TAKESHIMA HIROTAKA , KAWANO HAJIME , TAKEUCHI HIROYUKI , MIYAMOTO YOSHIYUKI , FUKUTOMI KIYOSHI
IPC分类号： H01F6/00 , H01F6/04
摘要： PROBLEM TO BE SOLVED: To provide a superconducting magnet apparatus to prevent generated magnetic flux from attenuating, to prevent quenching from developing, to obtain high and uniform manufacturing preciseness, and to downsize and lighten the whole apparatus. SOLUTION: Liquid helium is held in a coolant container 11 wherein a superconducting multilayered complex tubular body 13 is soaked. Permanent current flows through the tubular body 13 in its circumferential direction, therefor magnetic flux passing through inside space of the tubular body 13 is generated by the permanent current. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种超导磁体装置，以防止产生的磁通量衰减，防止淬火显影，以获得高而均匀的制造精度，并且减小和减轻整个装置的尺寸。解决方案：液氦保持在冷却剂容器11中，其中超导多层复合管体13被浸泡。永久电流在其圆周方向上流过管状体13，由此通过永久电流产生穿过管状体13的内部空间的磁通。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2005334101A Magnetic resonance imaging equipment 有权
标题翻译：磁共振成像设备
公开(公告)号：JP2005334101A
公开(公告)日：2005-12-08
申请号：JP2004154148
申请日：2004-05-25
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： MIYAMOTO YOSHIYUKI , ITABASHI TERUAKI
IPC分类号： G01R33/54 , A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide MRI equipment capable of providing a dynamic EPI (Echo Planar Imaging) image with a favorable image quality by eliminating image distortion and its fluctuation, image displacement and its fluctuation, and artifact caused by the vibration of a cryocooler when performing the dynamic EPI.
SOLUTION: This MRI equipment previously measures three-dimensional fluctuation data indicating a period of a static magnetic field fluctuation, the amount of fluctuation, and positional dependence of the amount of fluctuation and stores them in a storage means in a computer corresponding to the vibration phase of the cryocooler. This equipment corrects the displacement for every pixel of the image using the three-dimensional fluctuation data.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够通过消除图像失真及其波动，图像位移及其波动以及由振动引起的伪影来提供具有良好图像质量的动态EPI（回波平面成像）图像的MRI设备执行动态EPI时的低温制冷器。解决方案：该MRI设备先前测量表示静态磁场波动的周期，波动量和波动量的位置依赖性的三维波动数据，并将其存储在对应于计算机的计算机的存储装置中低温冷却器的振动阶段。该设备使用三维波动数据校正图像的每个像素的位移。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004267405A Magnetic resonance imaging device 有权
公开(公告)号：JP2004267405A
公开(公告)日：2004-09-30
申请号：JP2003061053
申请日：2003-03-07
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： YAMAMIZU TAKU , SATO SHIGERU , MIYAMOTO YOSHIYUKI
IPC分类号： G01R33/36 , A61B5/055 , G01R33/3815 , G01R33/385
摘要： PROBLEM TO BE SOLVED: To provide a vertical magnetic field type magnetic resonance imaging device for which a coil for highly efficient gradient magnetic field generation and a coil for high-frequency pulse magnetic field irradiation are loaded on a magnet having a conical recess at the center part.
SOLUTION: For a static magnetic field generation magnet having the conical recess at the center part, the coil for the gradient magnetic field generation roughly in a truncated conical shape and the coil for the high-frequency pulse magnetic field irradiation in a disk shape are housed inside the recess of the magnet.
COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2008161404A Magnetic resonance inspection device 有权
标题翻译：磁共振检测装置
公开(公告)号：JP2008161404A
公开(公告)日：2008-07-17
申请号：JP2006353697
申请日：2006-12-28
申请人： Hitachi Ltd , Hitachi Medical Corp , 株式会社日立メディコ , 株式会社日立製作所
发明人： NINOMIYA ATSUSHI , KASAI YOSHI , OCHI HISAAKI , TSUCHIHATA MASAYOSHI , MIYAMOTO YOSHIYUKI , NAGAI SHIZUKA
IPC分类号： A61B5/055 , G01R33/34
CPC分类号： G01R33/3415 , A61B5/055 , G01R33/34007 , G01R33/34084
摘要： PROBLEM TO BE SOLVED: To suppress the increase of the number of channels and to provide a reception coil for vertical magnetic field type MRI usable in a wide area. SOLUTION: A reception coil unit 500 includes a bed coil unit 600 for matching the longitudinal direction with the body axial direction of an inspection object 103 and an upper coil unit 700 detachably attached to the bed coil unit 600. The bed coil unit 600 is provided with a plurality of lower sub coils disposed at the lower part of a mounting surface 601, and the upper coil unit 700 is provided with a plurality of upper sub coils connected with the lower sub coils. The upper sub coil is divided into a flexible inner side support 20-1 covering the mounting surface 601 and a flexible outer side support 20-2 covering the outer side of the inner side support 20-1 and disposed. The upper sub coils and the lower sub coils are connected by attaching the upper coil unit 700 to the bed coil unit 600 to form two or more kinds of sub coils. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了抑制通道数的增加，并且提供可用于广域的垂直磁场型MRI的接收线圈。解决方案：接收线圈单元500包括用于使纵向方向与检查对象103的主体轴向匹配的床线圈单元600和可拆卸地附接到床线圈单元600的上线圈单元700.床线圈单元 600设置有设置在安装表面601的下部的多个下部子线圈，并且上部线圈单元700设置有与下部子线圈连接的多个上部子线圈。上副线圈分为覆盖安装面601的柔性内侧支撑20-1和覆盖内侧支撑件20-1的外侧的柔性外侧支撑20-2，并配置。上副线圈和下子线圈通过将上线圈单元700附接到床线圈单元600而连接，以形成两种或更多种子线圈。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2004033349A Magnetic resonance imaging apparatus 有权
公开(公告)号：JP2004033349A
公开(公告)日：2004-02-05
申请号：JP2002191986
申请日：2002-07-01
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： YAMAMIZU TAKU , SATO SHIGERU , MIYAMOTO YOSHIYUKI , ITABASHI TERUAKI , AMANO YOSHIAKI , ONUMA MITSURU , IWASAKI MASAKATSU , KASAI YOSHI
IPC分类号： G01R33/30 , A61B5/055 , G01R33/38
CPC分类号： G01R33/3806
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus of vertical magnetic field type which particularly improves accessibility to an examinee, in the imaging apparatus for a medical service or the like. SOLUTION: The magnetic resonance imaging apparatus includes disk-like upper side and lower side magnets coaxially disposed oppositely to each other, a pair of struts provided vertically at outer edges of the upper and lower side magnets, a bed having a space between the upper and lower side magnets, in which the examinee is inserted, and a bed base. The pair of the struts are oppositely disposed via a central axis of the upper and lower side magnets in such a manner that one of the pair of the struts is formed smaller in a cross-sectional area than that of the other, an inserting direction of the bed is inclined and disposed to the strut of the side in which the cross-sectional area with respect to a direction perpendicular to a straight line for connecting centers of the pair of the struts is smaller. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2009045361A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2009045361A
公开(公告)日：2009-03-05
申请号：JP2007216331
申请日：2007-08-22
申请人： Hitachi Ltd , Hitachi Medical Corp , 株式会社日立メディコ , 株式会社日立製作所
发明人： TSUCHIHATA MASAYOSHI , OCHI HISAAKI , NAGAI SHIZUKA , MIYAMOTO YOSHIYUKI , NINOMIYA ATSUSHI , KASAI YOSHI
IPC分类号： A61B5/055 , G01R33/34
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus having a receiving coil capable of imaging an optional cross section in a wide range such as a whole body at a high speed. SOLUTION: An inner coil unit 501, or a first coil layer, has a sensitivity distribution in the RL direction, is movable singularly, and is usable for a horizontal magnetic field type MRI apparatus and a vertical magnetic field type MRI apparatus. An inner coil unit 502 and an upper coil unit 503, or a second coil layer, and has a sensitivity distribution in the HF direction so that, when performing a parallel imaging executed by setting a phase encoding direction to the RL direction or the HF direction, this constitution can attain the high speed imaging by operating a corresponding coil layer on condition that the first coil layer and the second coil layer are formed and operated together. An external coil unit 504, or a third coil layer, has a sensitivity distribution in the AP direction. The first, second and third coil layers are combinedly operated to image the optional cross section in the wide range at the high speed. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁共振成像装置，其具有能够高速成像诸如全身的宽范围内的可选横截面的接收线圈。解决方案：内线圈单元501或第一线圈层在RL方向上具有灵敏度分布，可单独移动，并且可用于水平磁场型MRI设备和垂直磁场型MRI设备。内线圈单元502和上线圈单元503或第二线圈层，并且在HF方向上具有灵敏度分布，使得当通过将相位编码方向设置为RL方向或HF方向执行并行成像时这种结构可以在第一线圈层和第二线圈层一起形成和操作的条件下通过操作相应的线圈层而获得高速成像。外部线圈单元504或第三线圈层在AP方向上具有灵敏度分布。第一，第二和第三线圈层被组合地操作以在宽范围内以高速成像可选的横截面。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2003299630A Magnetic resonance imaging device 审中-公开
标题翻译：磁共振成像装置
公开(公告)号：JP2003299630A
公开(公告)日：2003-10-21
申请号：JP2002110457
申请日：2002-04-12
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： MIYAMOTO YOSHIYUKI , KIYONO HIDENORI
IPC分类号： G01R33/385 , A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging device equipped with a means for connecting a gradient magnetic field coil to a control cable, by which a wide space becomes available for a subject without restrictions due to the control cable on the movement of a top plate.
SOLUTION: With attention directed to the presence of a support 118 for a lower gradient magnetic field coil 115, the support 118 and the lower gradient magnetic field coil 115 are electrically connected with connectors 301 and 302. Then, a cable connector 203 is formed on the floor-contacting side of the support 118, so that the control cable is connected to the cable connector 203. Accordingly, it is no longer necessary to lead the control cable from the lower gradient magnetic field coil 115 to the subject space side by bypassing the top plate 119, thus achieving the effect of eliminating the restriction due to the control cable on the movement of the top plate 119.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种磁共振成像装置，其配备有用于将梯度磁场线圈连接到控制电缆的装置，由此可以在不受限制的情况下对主体提供宽广的空间，这是由于控制电缆顶板的运动。解决方案：考虑到存在用于较低梯度磁场线圈115的支撑件118，支撑件118和下梯度磁场线圈115与连接器301和302电连接。然后，电缆连接器203 形成在支撑件118的地板接触侧，使得控制电缆连接到电缆连接器203.因此，不再需要将控制电缆从下梯度磁场线圈115引导到主体空间通过绕过顶板119，从而实现消除由于控制电缆对顶板119的运动的限制的作用。（C）2004，JPO

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