公开(公告)号：US20060001427A1

公开(公告)日：2006-01-05

申请号：US11169940

申请日：2005-06-30

申请人： Ryuya Ando ,  Mitsushi Abe ,  Hiroyuki Watanabe

发明人： Ryuya Ando ,  Mitsushi Abe ,  Hiroyuki Watanabe

IPC分类号： G01V3/00

CPC分类号： G01R33/3873

摘要： A magnetic resonance imaging apparatus and the magnet apparatus thereof comprise plural pairs of magnetic field generation sources, arranged face to face with each other, for forming a magnetic field space 3; and magnetic field homogeneity adjusting apparatuses 17 and 18 for providing homogeneity adjustment of the magnetic field formed in the magnetic field space 3. The magnetic field homogeneity adjusting apparatuses 17 and 18 contain a plurality of tapped holes 24 for installing a magnetic field homogeneity adjusting member 26 of smaller volume in a plate-formed tray made of a non-magnetic substance; and a plurality of mounts 25 for installing the magnetic field homogeneity adjusting member 27 of greater volume, these mounts being formed over the area containing a plurality of through-holes for permitting installation of a magnetic field homogeneity adjusting member 26 of smaller volume, whereby major magnetic field adjusting work can be performed independently of minor magnetic field adjusting work.

摘要翻译： 磁共振成像装置及其磁铁装置包括彼此面对面布置的多对磁场产生源，用于形成磁场空间3; 以及用于提供在磁场空间3中形成的磁场的均匀性调节的磁场均匀性调节装置17和18.磁场均匀性调节装置17和18包含多个用于安装磁场均匀性调节构件26的螺纹孔24 在由非磁性物质制成的板状托盘中的体积较小; 以及用于安装更大体积的磁场均匀性调节构件27的多个安装件25，这些安装件形成在包含多个通孔的区域上，用于允许安装较小体积的磁场均匀性调节构件26，由此主要 可以独立于小磁场调整工作进行磁场调整工作。

公开(公告)号：US07245128B2

公开(公告)日：2007-07-17

申请号：US11169940

申请日：2005-06-30

申请人： Ryuya Ando ,  Mitsushi Abe ,  Hiroyuki Watanabe

发明人： Ryuya Ando ,  Mitsushi Abe ,  Hiroyuki Watanabe

IPC分类号： G01V3/00

CPC分类号： G01R33/3873

摘要： A magnetic resonance imaging apparatus and the magnet apparatus thereof comprise plural pairs of magnetic field generation sources, arranged face to face with each other, for forming a magnetic field space 3; and magnetic field homogeneity adjusting apparatuses 17 and 18 for providing homogeneity adjustment of the magnetic field formed in the magnetic field space 3. The magnetic field homogeneity adjusting apparatuses 17 and 18 contain a plurality of tapped holes 24 for installing a magnetic field homogeneity adjusting member 26 of smaller volume in a plate-formed tray made of a non-magnetic substance; and a plurality of mounts 25 for installing the magnetic field homogeneity adjusting member 27 of greater volume, these mounts being formed over the area containing a plurality of through-holes for permitting installation of a magnetic field homogeneity adjusting member 26 of smaller volume, whereby major magnetic field adjusting work can be performed independently of minor magnetic field adjusting work.

摘要翻译： 磁共振成像装置及其磁铁装置包括彼此面对面布置的多对磁场产生源，用于形成磁场空间3; 以及用于提供在磁场空间3中形成的磁场的均匀性调整的磁场均匀性调节装置17和18。 磁场均匀性调节装置17和18包含多个用于在由非磁性物质制成的板状托盘中安装体积较小的磁场均匀性调节构件26的螺纹孔24; 以及用于安装更大体积的磁场均匀性调节构件27的多个安装件25，这些安装件形成在包含多个通孔的区域上，用于允许安装较小体积的磁场均匀性调节构件26，由此主要 可以独立于小磁场调整工作进行磁场调整工作。

公开(公告)号：US20070001792A1

公开(公告)日：2007-01-04

申请号：US11476700

申请日：2006-06-29

申请人： Takeo Nemoto ,  Ryuya Ando ,  Hiroyuki Watanabe

发明人： Takeo Nemoto ,  Ryuya Ando ,  Hiroyuki Watanabe

IPC分类号： H01F6/00

CPC分类号： G01R33/3815 ,  G01R33/421

摘要： [Object]An object of the present invention is to provide a MRI superconductive magnet enables sharp images representing patients' health states to be produced. [Means for Achieving the Object]A MRI superconductive magnet having a superconductive coil, a liquid vessel of liquid helium used to cool the superconductive coil, a heat shield to accommodate the liquid vessel therein, a vacuum chamber to accommodate the heat shield therein, a load supporting body for supporting the superconductive coil from the vacuum chamber and securing the superconductive coil, a second cold part of a multi-stage refrigerator for cooling a heat exchanger to condense evaporated helium gas, and a first cold part of the multi-stage refrigerator for cooling the heat shield, wherein a magnetic shield is provided from the first cold part of the multi-stage refrigerator to an outer periphery of the second cold part of the multi-stage refrigerator.

摘要翻译： 本发明的目的是提供一种MRI超导磁体，其能够产生表示患者健康状态的清晰图像。 实现目标的手段具有超导线圈的MRI超导磁体，用于冷却超导线圈的液氦液体容器，用于容纳液体容器的隔热罩，容纳其中的隔热罩的真空室， 用于从真空室支撑超导线圈并固定超导线圈的负载支撑体，用于冷却热交换器以冷凝蒸发的氦气的多级制冷器的第二冷部，以及多级制冷器的第一冷部 用于冷却隔热罩，其中从多级制冷机的第一冷部向多级制冷机的第二冷部的外周提供磁屏蔽。

公开(公告)号：US07323963B2

公开(公告)日：2008-01-29

申请号：US11476700

申请日：2006-06-29

申请人： Takeo Nemoto ,  Ryuya Ando ,  Hiroyuki Watanabe

发明人： Takeo Nemoto ,  Ryuya Ando ,  Hiroyuki Watanabe

IPC分类号： H01F7/00

CPC分类号： G01R33/3815 ,  G01R33/421

摘要： An object of the present invention is to provide a MRI superconductive magnet enables sharp images representing patients' health states to be produced.[Means for Achieving the Object]A MRI superconductive magnet having a superconductive coil, a liquid vessel of liquid helium used to cool the superconductive coil, a heat shield to accommodate the liquid vessel therein, a vacuum chamber to accommodate the heat shield therein, a load supporting body for supporting the superconductive coil from the vacuum chamber and securing the superconductive coil, a second cold part of a multi-stage refrigerator for cooling a heat exchanger to condense evaporated helium gas, and a first cold part of the multi-stage refrigerator for cooling the heat shield, wherein a magnetic shield is provided from the first cold part of the multi-stage refrigerator to an outer periphery of the second cold part of the multi-stage refrigerator.

摘要翻译： 本发明的目的是提供一种MRI超导磁体，其能够产生表示患者健康状态的清晰图像。 实现目标的手段具有超导线圈的MRI超导磁体，用于冷却超导线圈的液氦液体容器，用于容纳液体容器的隔热罩，容纳其中的隔热罩的真空室， 用于从真空室支撑超导线圈并固定超导线圈的负载支撑体，用于冷却热交换器以冷凝蒸发的氦气的多级制冷器的第二冷部，以及多级制冷器的第一冷部 用于冷却隔热罩，其中从多级制冷机的第一冷部向多级制冷机的第二冷部的外周提供磁屏蔽。

公开(公告)号：US07126448B2

公开(公告)日：2006-10-24

申请号：US11101464

申请日：2005-04-08

申请人： Hiroyuki Watanabe ,  Masanori Takahashi ,  Mitsushi Abe ,  Jun Kawamura

发明人： Hiroyuki Watanabe ,  Masanori Takahashi ,  Mitsushi Abe ,  Jun Kawamura

IPC分类号： H01F6/00

CPC分类号： G01R33/3815

摘要： An MRI apparatus includes magnet members for compensating the magnetic field which are disposed to a thermal shield system of the superconducting apparatus. The magnet members for compensating the magnetic field are disposed at positions where temperature change in the vacuum chamber is not transferred to the interior of the vacuum chamber.

摘要翻译： MRI装置包括用于补偿磁场的磁体构件，其设置在超导装置的热屏蔽系统上。 用于补偿磁场的磁体构件设置在真空室中的温度变化不被传递到真空室内部的位置处。

公开(公告)号：US20050146407A1

公开(公告)日：2005-07-07

申请号：US10980312

申请日：2004-11-04

申请人： Hiroyuki Watanabe ,  Masanori Takahashi ,  Mitsushi Abe ,  Jun Kawamura

发明人： Hiroyuki Watanabe ,  Masanori Takahashi ,  Mitsushi Abe ,  Jun Kawamura

IPC分类号： A61B5/055 ,  G01R33/38 ,  G01R33/3815 ,  G01R33/3873 ,  H01F6/00 ,  H01F6/04 ,  H01F1/00

CPC分类号： G01R33/3815

摘要： An MRI apparatus is characterized in that magnet members for compensating the magnetic field are disposed to a thermal shield system of the superconducting apparatus. It is another feature of the present invention that the magnet members for compensating the magnetic field are disposed at positions where temperature change in the vacuum chamber is not transferred to the interior of the vacuum chamber.

公开(公告)号：US08698499B2

公开(公告)日：2014-04-15

申请号：US12516077

申请日：2007-09-19

申请人： Mitsushi Abe ,  Hiroyuki Watanabe ,  Hirotaka Takeshima

发明人： Mitsushi Abe ,  Hiroyuki Watanabe ,  Hirotaka Takeshima

IPC分类号： G01R33/381 ,  G01R33/3815

CPC分类号： G01R33/3806 ,  G01R33/3815 ,  H01F7/202

摘要： An electromagnet device which generates magnetic field in the direction perpendicular to the inserting direction of an inspection subject is reduced in size and weight by removing unnecessary arrangement as much as possible. A magnetic resonance imaging device is also provided. The electromagnet device comprises a first coil (31) through which a first circular current (J1) circulates forward, a second coil (32) through which a second circular current (J2) circulates reversely, and a coil group (30) through which a plurality of circular currents (J3-J6) circulate alternately forward and reversely. The first coil (30), the second coil (32) and the coil group (30) are arranged in this order to increase the angle of elevation θ (θ1

摘要翻译： 通过尽可能地去除不必要的布置，在与检查对象的插入方向垂直的方向上产生磁场的电磁装置的尺寸和重量减小。 还提供了一种磁共振成像装置。 电磁体装置包括第一线圈（31），第一圆形电流（J1）向前循环;第二线圈（32），第二圆形电流（J2）通过该线圈反向循环;线圈组（30） 多个圆形电流（J3-J6）交替地向前和向后循环。 第一线圈（30），第二线圈（32）和线圈组（30）以此顺序排列以增加仰角; （＆Thetas; 1 <＆thetas; 2 <＆thetas; 3）和不包括第二线圈（32）和线圈组（30）的空白区域（S）存在于仰角和角度之间的角度区域中; 2和 ＆thetas; 3。

公开(公告)号：US07928820B2

公开(公告)日：2011-04-19

申请号：US12358612

申请日：2009-01-23

申请人： Tomoo Chiba ,  Hiroyuki Watanabe ,  Hirotaka Takeshima ,  Shigeki Tounosu ,  Mitsushi Abe ,  Hiroyuki Takeuchi

发明人： Tomoo Chiba ,  Hiroyuki Watanabe ,  Hirotaka Takeshima ,  Shigeki Tounosu ,  Mitsushi Abe ,  Hiroyuki Takeuchi

IPC分类号： H01F6/00 ,  G01V3/00

CPC分类号： H01F6/04 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/3815

摘要： In a superconducting magnet, including a vacuum vessel, a coil vessel inside the vacuum vessel, and a superconducting coil inside the coil vessel for generating a magnetic field, has a magnetic member, disposed inside the vacuum vessel, supported with thermal insulation, for compensating the magnetic field; a heat exchange device disposed outside the vacuum vessel for supplying to or absorbing heat from the vacuum vessel; and thermal conducting members thermally connecting the heat exchange device via the vacuum vessel to the magnetic member. An MRI including the superconducting magnet is also disclosed.

摘要翻译： 在包括真空容器的真空容器的超导磁体中，真空容器内部的线圈容器和用于产生磁场的线圈容器内的超导线圈具有设置在真空容器内的热绝缘支撑的磁性构件，用于补偿 磁场; 设置在所述真空容器外部的用于从所述真空容器供给或吸收热量的热交换装置; 以及导热构件，其通过所述真空容器将所述热交换装置热连接到所述磁性构件。 还公开了包括超导磁体的MRI。

公开(公告)号：US20090189721A1

公开(公告)日：2009-07-30

申请号：US12358612

申请日：2009-01-23

申请人： Tomoo CHIBA ,  Hiroyuki Watanabe ,  Hirotaka Takeshima ,  Shigeki Tounosu ,  Mitsushi Abe ,  Hiroyuki Takeuchi

发明人： Tomoo CHIBA ,  Hiroyuki Watanabe ,  Hirotaka Takeshima ,  Shigeki Tounosu ,  Mitsushi Abe ,  Hiroyuki Takeuchi

IPC分类号： H01F6/00

CPC分类号： H01F6/04 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/3815

摘要： In a superconducting magnet, including a vacuum vessel, a coil vessel inside the vacuum vessel, and a superconducting coil inside the coil vessel for generating a magnetic field, has a magnetic member, disposed inside the vacuum vessel, supported with thermal insulation, for compensating the magnetic field; a heat exchange device disposed outside the vacuum vessel for supplying to or absorbing heat from the vacuum vessel; and thermal conducting members thermally connecting the heat exchange device via the vacuum vessel to the magnetic member. An MRI including the superconducting magnet is also disclosed.

摘要翻译： 在包括真空容器的真空容器的超导磁体中，真空容器内部的线圈容器和用于产生磁场的线圈容器内的超导线圈具有设置在真空容器内的热绝缘支撑的磁性构件，用于补偿 磁场; 设置在所述真空容器外部的用于从所述真空容器供给或吸收热量的热交换装置; 以及导热构件，其通过所述真空容器将所述热交换装置热连接到所述磁性构件。 还公开了包括超导磁体的MRI。

公开(公告)号：US07567083B2

公开(公告)日：2009-07-28

申请号：US11723749

申请日：2007-03-21

申请人： Takeshi Nakayama ,  Mitsushi Abe ,  Hiroyuki Watanabe ,  Masanori Takahashi

发明人： Takeshi Nakayama ,  Mitsushi Abe ,  Hiroyuki Watanabe ,  Masanori Takahashi

IPC分类号： G01V3/00

CPC分类号： G01R33/3873 ,  G01R33/3806 ,  G01R33/3815 ,  G01R33/421

摘要： A super-conducting magnet apparatus in an MRI system which may reduce unevenness among magnetization characteristics of ferromagnetic elements arranged between super-conductive shield coils and superconducting main coils. There are provided a pair of super-conducting main coils, a pair of superconductive shield coils arranged on the axes of the pair of super-conducting main coils, being spaced from the pair of super-conducting main coils, and also arranged on opposite sides of a zone to be observed, and ferromagnetic elements arranged in parts of spaces extending from air core parts of the super-conducting main coils to air core parts of the super-conductive shield coils. The super-conductive shield coils have an outer diameter which is larger than that of the super-conducting main coils. The ferromagnetic elements are composed of a plurality of axially symmetric ferromagnetic members which are coaxially arranged, and which have a space in at least a radial part thereof, but not in a center axis part. With this configuration, the magnetic saturation of the ferromagnetic members may be facilitated. Thereby it is possible to reduce the effect of unevenness among magnetization characteristics of the ferromagnetic elements.

摘要翻译： 一种MRI系统中的超导磁体装置，其可以减少配置在超导体屏蔽线圈与超导主线圈之间的铁磁性元件的磁化特性之间的不均匀性。 设置有一对超导主线圈，一对超导屏蔽线圈，布置在一对超导主线圈的轴线上，与一对超导主线圈间隔开，并且还布置在相对侧 以及配置在从超导主线圈的空气芯部分延伸到超导电屏蔽线圈的空芯部分的空间的部分的铁磁元件。 超导电屏蔽线圈的外径大于超导主线圈的外径。 铁磁元件由同轴布置的多个轴向对称铁磁构件组成，并且在至少其径向部分中具有空间，但不在中心轴部分。 利用这种结构，铁磁部件的磁饱和度可以容易。 由此，能够降低铁磁性元件的磁化特性之间的不均匀性的影响。