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：US20110037469A1

公开(公告)日：2011-02-17

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： G01R33/34

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：US08581586B2

公开(公告)日：2013-11-12

申请号：US12933255

申请日：2009-03-27

申请人： Mitsushi Abe ,  Hirotaka Takeshima

发明人： Mitsushi Abe ,  Hirotaka Takeshima

IPC分类号： G01V3/00

CPC分类号： G01R33/385

摘要： A coil pattern calculation method includes calculating a current potential at each contact between finite surface elements forming each of the coil surfaces based on an initial value of an input current potential distribution, and, for each of the coil surfaces, repeatedly calculating the current potential alternately and, under each magnetic field condition, determining a current potential distribution that generates a magnetic field falling within the range of allowable error for each target magnetic field so that a surface current represented by the current potential will become close to a target magnetic field distribution set for each of the finite surface elements; and determining a coil pattern from the contour lines of the determined current potential distribution.

摘要翻译： 线圈图案计算方法包括基于输入电流分布的初始值来计算形成每个线圈表面的有限表面元件之间的每个接触处的电流电位，并且对于每个线圈表面，交替重复地计算电流电势 并且在每个磁场条件下，确定产生每个目标磁场的容许误差范围内的磁场的电流分布，使得由电流电位表示的表面电流将变得接近目标磁场分布集 对于每个有限表面元素; 以及从所确定的电流分布的轮廓线确定线圈图案。

公开(公告)号：US20110018540A1

公开(公告)日：2011-01-27

申请号：US12933255

申请日：2009-03-27

申请人： Mitsushi Abe ,  Hirotaka Takeshima

发明人： Mitsushi Abe ,  Hirotaka Takeshima

IPC分类号： G01R33/44

CPC分类号： G01R33/385

摘要： The present invention eliminate the limitation of coil pattern design, facilitates the fabrication, and improves the accuracy of magnetic field. A coil pattern calculation method is characterized by comprising the steps of: calculating a current potential at each contact between finite surface elements forming each of the coil surfaces based on an initial value of an input current potential distribution, and, for each of the coil surfaces, repeatedly calculating the current potential alternately and, under each magnetic field condition, determining a current potential distribution that generates a magnetic field falling within the range of allowable error for each target magnetic field so that a surface current represented by the current potential will become close to a target magnetic field distribution set for each of the finite surface elements; and determining a coil pattern from the contour lines of the determined current potential distribution.

摘要翻译： 本发明消除了线圈图案设计的限制，便于制造，并且提高了磁场的精度。 线圈图案计算方法的特征在于包括以下步骤：基于输入电流分布的初始值来计算形成每个线圈表面的有限表面元件之间的每个接触处的电流电势，并且对于每个线圈表面 ，交替地重复计算电流，并且在每个磁场条件下，确定产生每个目标磁场的容许误差范围内的磁场的电流分布，使得由当前电位表示的表面电流变得接近 到每个有限表面元件的目标磁场分布集合; 以及从所确定的电流分布的轮廓线确定线圈图案。

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：US20080024254A1

公开(公告)日：2008-01-31

申请号：US11780068

申请日：2007-07-19

申请人： Tomoo Chiba ,  Hiroyuki Watanabe ,  Kunihiro Takayama ,  Jun Kawamura ,  Mitsushi Abe ,  Takeshi Nakayama ,  Yoshio Hamadate

发明人： Tomoo Chiba ,  Hiroyuki Watanabe ,  Kunihiro Takayama ,  Jun Kawamura ,  Mitsushi Abe ,  Takeshi Nakayama ,  Yoshio Hamadate

IPC分类号： H01F6/00

CPC分类号： G01R33/3815 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/3873

摘要： A superconducting magnet apparatus obtains high magnetic field uniformity without increasing the volume of a magnetic material even against disturbances. The superconducting magnet apparatus has a circular superconducting coil which generates a magnetic field; a coil vessel which contains the superconducting coil 11 together with refrigerant; a thermal shield arranged so as to surround the coil vessel; a vacuum vessel with inside kept vacuum which surrounds the thermal-shield; and magnetic materials and for correcting the magnetic field, the magnetic materials being arranged in the vacuum vessel; wherein the magnetic materials and are supported by a heat-insulation support medium fixed to the coil vessel.

摘要翻译： 超导磁体设备即使抵抗干扰也能获得高磁场均匀性而不增加磁性材料的体积。 超导磁体装置具有产生磁场的圆形超导线圈， 包含超导线圈11和制冷剂的线圈容器; 布置成围绕线圈容器的热屏蔽; 具有围绕热屏蔽的内部保持真空的真空容器; 和磁性材料并用于校正磁场，磁性材料布置在真空容器中; 其中所述磁性材料由固定到所述线圈容器的绝热支撑介质支撑。

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。