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1. 发明专利

JP2005204964A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2005204964A
公开(公告)日：2005-08-04
申请号：JP2004015232
申请日：2004-01-23
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Hitachi Medical Corp , 日立エンジニアリング株式会社 , 株式会社日立メディコ , 株式会社日立製作所
发明人： TAKESHIMA HIROTAKA , WADAYAMA YOSHIHIDE , YAO TAKESHI , KUROME AKIRA , WATANABE HIROYUKI , MOTOSHIROMIZU HIROBUMI , SUZUKI KUNIHITO
IPC分类号： G01R33/385 , A61B5/055
摘要： PROBLEM TO BE SOLVED: To restrain vibration caused by the drive of an inclined magnetic field coil by a method facilitating the manufacture without impairing the opening performance of a magnet in a vertical magnetic field system open type MRI apparatus.
SOLUTION: In this magnetic resonance imaging apparatus, a coil storing container containing a coil for generating a static magnetic field has a large rigidity, and the inclined magnetic field coil is substantially firmly fixed in the coil storing container.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过在垂直磁场系统开放式MRI装置中不损害磁体的开放性能的方法来抑制由倾斜磁场线圈的驱动引起的振动。解决方案：在该磁共振成像装置中，包含用于产生静磁场的线圈的线圈存储容器具有大的刚度，并且倾斜磁场线圈基本上牢固地固定在线圈容纳容器中。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005304597A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2005304597A
公开(公告)日：2005-11-04
申请号：JP2004122723
申请日：2004-04-19
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Hitachi Medical Corp , 日立エンジニアリング株式会社 , 株式会社日立メディコ , 株式会社日立製作所
发明人： SAKAKIBARA KENJI , SUZUKI KUNIHITO , WATANABE HIROYUKI , TAKESHIMA HIROTAKA
IPC分类号： G01R33/3815 , A61B5/055 , G01R33/385
CPC分类号： G01R33/3856
摘要： PROBLEM TO BE SOLVED: To provide an MRI apparatus which has a homogeneous static magnetic field with an increase in openness and is equipped with a static magnetic field generating device which hardly vibrates.
SOLUTION: A gradient magnetic field generating part is disposed in a depressed part on a surface (a facing surface) on the side of an imaging region on a pair of vessels of superconducting magnets placed to oppose mutually in a manner the imaging region is located between the vessels. A through-hole penetrating from the facing surface of the vessel of the superconducting magnet to the surface (an opposite surface) of the other side is provided, and a reinforcing member for increasing rigidity is fixed on the opposite surface. Since the gradient magnetic field generating part is disposed in the depressed part, and a current supply cable is pulled in from the through-hole, the openness of an imaging space is improved. Since inner walls of the through-hole works as a support post, increased rigidity of the opposite surface results in improved rigidity of the facing surface. Consequently, the vibrations transmitted from the gradient magnetic field generating part are suppressed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决问题：提供具有均匀的静态磁场并增加开放性的MRI装置，并且配备有几乎不振动的静磁场产生装置。解决方案：梯度磁场产生部件设置在超导磁体的一对容器上的成像区域侧的表面（相对表面）上的凹陷部分中，该超导磁体以相对于成像区域位于血管之间。提供了从超导磁体的容器的相对表面穿透到另一侧的表面（相对表面）的通孔，并且用于增加刚性的加强构件固定在相对的表面上。由于倾斜磁场产生部分设置在凹陷部分中，并且电流供应电缆从通孔拉入，因此提高了成像空间的开放度。由于通孔的内壁作为支撑柱，相反表面的刚性增加导致相对表面的刚性提高。因此，抑制了从梯度磁场产生部发送的振动。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005168809A Superconducting magnet device 有权
标题翻译：超级磁铁设备
公开(公告)号：JP2005168809A
公开(公告)日：2005-06-30
申请号：JP2003413175
申请日：2003-12-11
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Hitachi Medical Corp , 日立エンジニアリング株式会社 , 株式会社日立メディコ , 株式会社日立製作所
发明人： ANDO TATSUYA , ABE MITSUJI , WATANABE HIROYUKI , SUZUKI KUNIHITO , TAKAHASHI MASANORI , WADAYAMA YOSHIHIDE , YAO TAKESHI , TAKEUCHI HIROYUKI
IPC分类号： G01R33/3815 , A61B5/055 , G01R33/3873 , H01F6/00 , H01L39/04
摘要： PROBLEM TO BE SOLVED: To provide a space-saving means for facilitating the adjustment of a magnetic field by a shim member by effectively controlling the influence of a driving magnetic field caused by a gradient magnetic field coil or a superconducting coil, and controlling the magnetic force working on the shim member. SOLUTION: The superconducting magnet device has coil containers 10 and 12, which respectively store main coils 20 and 22 and correction coils 24, 26, 28 and 30, disposed facing each other. The coil containers are connected to each other via connecting rods 16 and 18, and the space between the coil containers is a magnetic space 14 with a static magnetic field. Recesses 38 and 40 are formed on the surfaces of the coil containers facing the magnetic space, and shield substrates 54, 56, 58 and 60 made of aluminum or copper are disposed on wall surfaces of the recesses. Female screw-shaped insertion holes 62 are formed on the shield substrates 54 and 56, and female screw-shaped insertion holes 66 are formed on the shield substrates 58 and 60. A screw 64 or a holder 72 with the shim member 76 is inserted in either one insertion hole 62 or 66 for adjusting a component of the unevenness of the magnetic field in an imaging region 52. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过有效地控制由梯度磁场线圈或超导线圈引起的驱动磁场的影响，提供了一种通过垫片构件来促进磁场调节的节省空间的装置，以及控制作用在垫片构件上的磁力。解决方案：超导磁体装置具有线圈容器10和12，其分别存储彼此相对设置的主线圈20和22以及校正线圈24,26,28和30。线圈容器通过连接杆16和18彼此连接，并且线圈容器之间的空间是具有静态磁场的磁空间14。凹槽38和40形成在面向磁性空间的线圈容器的表面上，并且由铝或铜制成的屏蔽基板54,56,58和60设置在凹部的壁表面上。在屏蔽基板54,56上形成有母螺纹状的插入孔62，在屏蔽基板58,60上形成有内螺纹状的插入孔66.将带有垫片构件76的螺钉64或保持架72插入一个用于调整成像区域52中的磁场不均匀性的分量的插入孔62或66。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2005204683A Magnetic field generator and magnetic resonance imaging apparatus using the same 审中-公开
标题翻译：磁场发生器和磁共振成像装置
公开(公告)号：JP2005204683A
公开(公告)日：2005-08-04
申请号：JP2004011290
申请日：2004-01-20
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： YAMAMOTO TSUTOMU , WATANABE HIROYUKI , WADAYAMA YOSHIHIDE , WAKUTA TAKESHI , HONNA TAKAO , TAKESHIMA HIROTAKA , SAKAKIBARA KENJI
IPC分类号： G01R33/3815 , A61B5/05 , A61B5/055 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To provide an open type magnetic force generator highly advancedly forming a uniform magnetic field in a measurement space even if it is impossible to form a magnetic passage for passing a magnetic flux into an axially symmetric shape and to provide a magnetic resonance imaging apparatus using the same. SOLUTION: The magnetic force generator is disposed with first and second annular magnetic field generating coils, first and second coil containers storing the magnetic field generating coils respectively, mutually separated from each other and oppositely disposed to each other, and a measuring magnetic field space formed between the disposed coil containers. First and second magnetic poles forming a magnetic circuit along with the first and second annular magnetic field generating coils are disposed, the position of a central line formed by connecting the central points of the first and second coil containers is deflected to the central line formed by connecting the central points of the first and second magnetic poles; or the first and the second coil containers are inclinedly constituted. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使不可能形成用于将磁通通过轴向对称形状的磁通道，提供在测量空间中高度前进地形成均匀磁场的开放式磁力发生器，并且提供使用该磁共振成像装置的磁共振成像装置。解决方案：磁力发生器设置有第一和第二环形磁场产生线圈，第一和第二线圈容器分别存储彼此相互分离并相对布置的磁场产生线圈，以及测量磁在设置的线圈容器之间形成的场空间。设置与第一和第二环形磁场产生线圈一起形成磁路的第一和第二磁极，通过连接第一和第二线圈容器的中心点形成的中心线的位置偏转到由连接第一和第二磁极的中心点; 或第一和第二线圈容器倾斜地构成。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2011072433A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2011072433A
公开(公告)日：2011-04-14
申请号：JP2009225539
申请日：2009-09-29
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： IMAMURA YUKINOBU , ABE MITSUJI , WATANABE HIROYUKI , KUROME AKIRA
IPC分类号： A61B5/055 , G01R33/3873 , G01R33/389
摘要： PROBLEM TO BE SOLVED: To provide an MRI apparatus for making a temperature distribution of a magnetic material hold plate 14 even without narrowing an image pickup area and attenuating a fluctuation magnetic field while generating small eddy current.
SOLUTION: The MRI apparatus includes: a magnet for generating a static magnetic field in an image pickup area of a subject; a gradient magnetic field coil for making pulse current flow to generate a magnetic field where magnetic field intensity is gradient in the image pickup area, a low temperature area where heat is unevenly generated, and a high temperature area which is higher in temperature than the low temperature area; and a magnetic material hold plate 14 which is disposed along the gradient magnetic field coil, holds a plurality of magnetic materials 13, and improves the evenness of the static magnetic field. The magnetic material hold plate 14 is an excellent conductor provided with slits 19, has a high temperature approximate area 29 close to the high temperature area and low temperature approximate areas 37, 38 close to the low temperature area. The slits 19 are provided so as not to cross between the high temperature approximate area 29 and the low temperature approximate areas 37, 38.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于制造磁性材料保持板14的温度分布的MRI装置，即使不使图像拾取区域变窄并且在产生小涡流的同时衰减波动磁场。解决方案：MRI装置包括：磁体，用于在被检体的图像拾取区域中产生静态磁场; 用于产生脉冲电流流动的梯度磁场线圈，以产生磁场强度在图像拾取区域中的梯度的磁场，不均匀发热的低温区域和温度高于低于该低温区域的高温区域温度区; 以及沿着倾斜磁场线圈设置的磁性材料保持板14，保持多个磁性材料13，并提高静磁场的均匀性。磁性材料保持板14是具有狭缝19的优良导体，具有接近高温区域的高温近似面积29和靠近低温区域的低温近似区域37,38。狭缝19设置成不在高温近似区域29和低温近似区域37,38之间交叉。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2008125893A Electromagnet apparatus and magnetic resonance imaging apparatus 有权
标题翻译：电磁设备和磁共振成像设备
公开(公告)号：JP2008125893A
公开(公告)日：2008-06-05
申请号：JP2006315907
申请日：2006-11-22
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： ABE MITSUJI , WATANABE HIROYUKI , TAKESHIMA HIROTAKA
IPC分类号： A61B5/055 , G01R33/381 , H01F6/00 , H01F7/20
CPC分类号： G01R33/3806 , G01R33/3815 , H01F7/202
摘要： PROBLEM TO BE SOLVED: To provide a downsized/lightweight electromagnetic apparatus and magnetic resonance imaging apparatus by removing unnecessary constitution as much as possible in the electromagnet apparatus generating a static magnetic field perpendicularly to the insertion direction of a subject. SOLUTION: This electromagnet apparatus includes a first coil 31 in which a first ring current J1 circulates in a forward direction, a second coil 32 in which a second ring current J2 circulates in an inverse direction, and coil group 30 in which a plurality of ring currents J3-J6 circulates alternately in the forward direction and the inverse direction; and the first coil 31, the second coil 32 and the coil group 30 are so disposed that the elevation angles θ increase in this order (θ1 COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过在垂直于被检体的插入方向产生静磁场的电磁铁装置中尽可能地去除不必要的结构来提供小型化/轻量化的电磁装置和磁共振成像装置。解决方案：该电磁铁装置包括第一环形电流J1沿正向循环的第一线圈31，第二环形电流J2沿相反方向循环的第二线圈32和线圈组30，其中，多个环形电流J3-J6在正向和反向交替地循环; 并且第一线圈31，第二线圈32和线圈组30被设置成使仰角θ依次增加（θ1<θ2<θ3），和不包括第二线圈32和线圈的空白区域S 组30存在于夹紧仰角θ2和仰角θ3的角度区域中。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2005111058A Superconducting magnet for nuclear magnetic resonance imaging device 有权
标题翻译：用于核磁共振成像装置的超导磁体
公开(公告)号：JP2005111058A
公开(公告)日：2005-04-28
申请号：JP2003350762
申请日：2003-10-09
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： WADAYAMA YOSHIHIDE , WATANABE HIROYUKI , TAKESHIMA HIROTAKA
IPC分类号： G01R33/3815 , A61B5/055 , F25B9/00 , H01F6/00 , H01F6/04
摘要： PROBLEM TO BE SOLVED: To provide a superconducting magnet for MRI whose operation time is long even in the state that an extremely low temperature refrigerator is stopped, in a magnet for open type MRI for which superconducting coils are oriented opposingly in the vertical direction. SOLUTION: A gaseous helium storage container is provided inside a liquid helium storage container and pressure piping is connected. Since the storage container has a structure that the lower part is opened and the upper part is closed, evaporated gaseous helium is captured and stored. As a result, the evaporated gaseous helium pushes up the liquid level of liquid helium, and hence the temperature rise of the superconducting coil due to liquid level decline is suppressed. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在极低温制冷机停止的状态下，为了提供超导磁体，其操作时间长，在用于开放型MRI的磁体中，超导线圈在垂直方向上相对定向方向。
解决方案：在液氦储存容器内设置气态氦储存容器，并连接压力管道。由于储存容器具有下部打开并且上部被封闭的结构，所以蒸发的气态氦被捕获并储存。结果，蒸发的气态氦气使液氦液面升高，抑制了液面下降引起的超导线圈的温度上升。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004173722A Magnetic resonance imaging device 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2004173722A
公开(公告)日：2004-06-24
申请号：JP2002340235
申请日：2002-11-25
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： MOTOSHIROMIZU HIROBUMI , WATANABE HIROYUKI , YAO TAKESHI , KUROME AKIRA
IPC分类号： G01R33/385 , A61B5/055 , G01R33/389
摘要： PROBLEM TO BE SOLVED: To prevent vibration caused by vibration of a gradient magnetic field coils from deteriorating an MR image in an MRI device. SOLUTION: The MRI device has ring-shaped generation sources 1a, 1b for electrostatic magnetic field which are arranged to face each other in the vertical direction, and the gradient magnetic field coils 6a, 6b and high-frequency coils 8a, 8b which are arranged on the inner diameter side of these generation sources 1a, 1b for the electrostatic magnetic field and disposed to face each other in the vertical direction. The generation sources 1a, 1b for the electrostatic magnetic field, the gradient magnetic field coils 6a, 6b, and the high-frequency coils 8a, 8b are held with a pair of magnetic plates 3a, 3b. The magnetic plates 3a, 3b are connected with each other by a columnar yoke 4. The gradient magnetic field coils 6a, 6b have base plates 11a, 11b which are vibration suppressing means. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了防止梯度磁场线圈的振动引起的振动恶化MRI装置中的MR图像。解决方案：MRI装置具有在垂直方向上彼此相对配置的静电磁场的环形发生源1a，1b，倾斜磁场线圈6a，6b和高频线圈8a，8b 它们布置在这些用于静电磁场的发生源1a，1b的内径侧上，并且在垂直方向上彼此面对。用于静电磁场的产生源1a，1b，梯度磁场线圈6a，6b和高频线圈8a，8b用一对磁性板3a，3b保持。磁性板3a，3b通过柱状磁轭4彼此连接。梯度磁场线圈6a，6b具有作为振动抑制装置的基板11a，11b。版权所有（C）2004，JPO

9. 发明专利

JP2011240182A Electromagnet apparatus and magnetic resonance imaging device 有权
标题翻译：电磁设备和磁共振成像装置
公开(公告)号：JP2011240182A
公开(公告)日：2011-12-01
申请号：JP2011193212
申请日：2011-09-05
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： ABE MITSUJI , WATANABE HIROYUKI , TAKESHIMA HIROTAKA
IPC分类号： A61B5/055 , G01R33/381
摘要： PROBLEM TO BE SOLVED: To provide a downsized/lightweight electromagnetic apparatus and magnetic resonance imaging apparatus by removing unnecessary constitution as much as possible in the electromagnet apparatus generating a static magnetic field perpendicularly to the insertion direction of a subject.SOLUTION: The electromagnet apparatus includes a first coil (31) in which a first ring current (J1) circulates in a forward direction, a second coil (32) in which a second ring current (J2) circulates in an inverse direction, and coil group (30) in which a plurality of ring currents (J3-J6) circulates alternately in the forward direction and the inverse direction. The first coil (31), the second coil (32) and the coil group (30) are disposed in such a way that elevation angles θ increase in this order (θ1
摘要翻译：要解决的问题：通过在垂直于被检体的插入方向产生静磁场的电磁铁装置中尽可能地去除不必要的结构来提供小型化/轻量化的电磁装置和磁共振成像装置。解决方案：电磁装置包括第一环线圈（31），其中第一环形电流（J1）沿正向循环;第二线圈（32），其中第二环形电流（J2）沿相反方向循环，以及多个环电流（J3-J6）在正向和反方向交替地循环的线圈组（30）。第一线圈（31），第二线圈（32）和线圈组（30）以仰角θ依次增加（θ1<θ2<θ3）的方式设置。此外，在保持仰角θ2和仰角θ3的角度区域中存在不包括第二线圈（32）和线圈组（30）的空白区域（S）。此外，用于在垂直于中心轴线（Z）交叉的平面中任意分布磁性材料的磁场调节部分（14）的最外面区域并且调整磁场的均匀区域（U）中的磁分布，被布置成包括在空白区域（S）中。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2009172129A Superconducting magnet apparatus and magnetic resonance imaging apparatus 有权
标题翻译：超级磁铁装置和磁共振成像装置
公开(公告)号：JP2009172129A
公开(公告)日：2009-08-06
申请号：JP2008013577
申请日：2008-01-24
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： CHIBA TOMOO , WATANABE HIROYUKI , TAKESHIMA HIROTAKA , KARASHI SHIGEKI , ABE MITSUJI , TAKEUCHI HIROYUKI
IPC分类号： A61B5/055 , G01R33/3815 , G01R33/3873 , H01F6/00
CPC分类号： H01F6/04 , G01R33/3804 , G01R33/3806 , G01R33/3815
摘要： PROBLEM TO BE SOLVED: To provide a superconducting magnet apparatus which suppresses a change of temperature of magnetic members low with respect to a change of room temperature over long term, is small in change of magnetic field homogeneity, and can change a temperature of the magnetic members in a short time as well. SOLUTION: The superconducting magnet apparatus 2 includes: superconducting coils 11a and 11b having annular shapes for generating magnetic fields; a coil vessel 9 for housing the superconducting coils 11a and 11b along with a refrigerant 14; a vacuum vessel 3 for encircling the coil vessel 9 and holding its inside vacuum; magnetic members 12a, 12b, 13a, and 13b which are installed inside the vacuum vessel 3, supported with thermal insulation from the coil vessel 9, and compensate the magnetic fields. The superconducting magnet apparatus 2 includes: a first heat supply and absorption part 44 which is provided outside the vacuum vessel 3, is thermally connected to the vacuum vessel 3, and supplies or absorbs heat; and first thermal conducting members 25 and 27 which are installed inside the vacuum vessel 3, and thermally connected to the vacuum vessel 3 and the magnetic members 12a, 12b, 13a, and 13b. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种长期地抑制磁性部件的温度变化低的超导磁体装置，磁场均匀性的变化小，能够改变温度的磁性成员也在短时间内。超导磁体装置2包括：具有用于产生磁场的环形形状的超导线圈11a和11b; 用于将超导线圈11a和11b与制冷剂14一起容纳的线圈容器9; 用于环绕线圈容器9并保持其内部真空的真空容器3; 磁性构件12a，12b，13a，13b，其安装在真空容器3的内部，由线圈容器9进行热绝缘支撑，并补偿磁场。超导磁体装置2包括：设置在真空容器3外部的第一供热部44与真空容器3热连接，供给或吸收热量; 和第一导热构件25和27，其安装在真空容器3的内部，并且与真空容器3和磁性构件12a，12b，13a和13b热连接。版权所有（C）2009，JPO＆INPIT

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