公开(公告)号：US06590953B2

公开(公告)日：2003-07-08

申请号：US09949638

申请日：2001-09-12

申请人： Tsutomu Suzuki ,  Hiroshi Takano ,  Eiichi Makino ,  Takaaki Kobiki ,  Akira Kurome

发明人： Tsutomu Suzuki ,  Hiroshi Takano ,  Eiichi Makino ,  Takaaki Kobiki ,  Akira Kurome

IPC分类号： H05G160

CPC分类号： A61B6/035 ,  A61B6/4488 ,  A61B6/56

摘要： The rotary member carrying the X-ray radiation unfit and the X-ray detection unit and rotated around a subject is used as the rotor. The rotor is provided with a rotor core and a plurality of conductors connected to the core. The stator has at least one set of stator core and stator winding, the at least one set of stator core and stator winding being adapted to clamp the rotor and arranged at opposing positions. A three-phase AC current is supplied to the stator winding to generate a rotating magnetic field to rotate the rotor and thereby rotate the rotary member at high speed. Because the scan time can be reduced, the X-ray CT scanner can scan such moving organs as heart.

公开(公告)号：US06819737B2

公开(公告)日：2004-11-16

申请号：US10606249

申请日：2003-06-26

申请人： Tsutomu Suzuki ,  Hiroshi Takano ,  Eiichi Makino ,  Takaaki Kobiki ,  Akira Kurome

发明人： Tsutomu Suzuki ,  Hiroshi Takano ,  Eiichi Makino ,  Takaaki Kobiki ,  Akira Kurome

IPC分类号： H05G102

CPC分类号： A61B6/035 ,  A61B6/4488 ,  A61B6/56

摘要： An X-ray CT scanner having an X-ray tube for radiating X-rays to a subject, an X-ray detector for detecting X-rays that have penetrated the subject, a circular plate-like rotary member with an opening for insertion of a subject and having the X-ray tube and the X-ray detector mounted thereon at opposing positions with respect to the opening, a support for rotatably supporting the rotary member, and a rotary drive for rotating the rotary member around the subject. The X-ray tube and the X-ray detector are mounted on a side surface of the rotary member, the side surface being a unit mounting surface for mounting a control unit relating to at least one of generation and detection of the X-rays.

摘要翻译： 一种X射线CT扫描器，其具有用于向被检体照射X射线的X射线管，用于检测穿过被检体的X射线的X射线检测器，具有用于插入被检体的开口的圆板状旋转部件 被摄体，并且在相对于开口的相对位置安装有X射线管和X射线检测器，用于可旋转地支撑旋转部件的支撑件和用于使旋转部件绕着被检体旋转的旋转驱动器。 X射线管和X射线检测器安装在旋转构件的侧表面上，侧表面是用于安装与X射线的产生和检测中的至少一个有关的控制单元的单元安装表面。

公开(公告)号：US09541617B2

公开(公告)日：2017-01-10

申请号：US13979542

申请日：2012-01-13

申请人： Masanao Terada ,  Mitsushi Abe ,  Yukinobu Imamura ,  Hiroyuki Takeuchi ,  Akira Kurome

发明人： Masanao Terada ,  Mitsushi Abe ,  Yukinobu Imamura ,  Hiroyuki Takeuchi ,  Akira Kurome

IPC分类号： G01R33/385 ,  G01R33/421

CPC分类号： G01R33/385 ,  G01R33/4215

摘要： A gradient coil device includes a major axis gradient coil, having an ellipse in a cross section generating a gradient magnetic field inclined in a major axis direction of the ellipse at a magnetic field space; and a minor axis gradient coil, having an ellipse in a cross section generating a gradient magnetic field inclined in a minor axis direction of the ellipse at the magnetic field space. A length of the minor axis field coil in the center axis direction is shorter than a length of the major axis gradient coil in the center axis direction. A maximum value of a residual magnetic field generated by the minor axis gradient coil at a space outside the magnetic field space is equal to or smaller than a maximum value of a residual magnetic field generated by the major axis gradient coil at a space outside the magnetic field space.

摘要翻译： 梯度线圈装置包括长轴梯度线圈，在截面上具有椭圆形状，在磁场空间产生沿椭圆的长轴方向倾斜的梯度磁场; 以及短轴倾斜线圈，在截面中具有椭圆形状，在磁场空间产生在椭圆的短轴方向上倾斜的倾斜磁场。 短轴励磁线圈的中心轴方向的长度比中心轴方向的长轴梯度线圈的长度短。 在磁场空间外的空间处由短轴梯度线圈产生的剩余磁场的最大值等于或小于在磁性空间外的空间处由长轴梯度线圈产生的残余磁场的最大值 场地空间。

公开(公告)号：US20090066332A1

公开(公告)日：2009-03-12

申请号：US12296719

申请日：2007-04-10

申请人： Takeshi Yatsuo ,  Hiroyuki Takeuchi ,  Akira Kurome

发明人： Takeshi Yatsuo ,  Hiroyuki Takeuchi ,  Akira Kurome

IPC分类号： G01R33/385

CPC分类号： G01R33/385 ,  G01R33/3856 ,  G01R33/3858 ,  G01R33/4215 ,  G01R33/422

摘要： An MRI apparatus excellent in magnetic field generation efficiency is provided. According to this invention, a main coil (52) of a gradient magnetic field coil (13) is partially recessed to reduce the total thickness of a radio-frequency coil (11) and a gradient magnetic field coil (13). That is, the main coil (52) is designed in a tubular shape, and the diameter r1 at the center portion of the imaging space is larger than the diameter r2 of the main coil end portion. Accordingly, the RF coil (11) can be disposed to be near to the gradient magnetic field coil (13) side without lowering the magnetic field generation efficiency.

摘要翻译： 提供了磁场产生效率优异的MRI装置。 根据本发明，梯度磁场线圈（13）的主线圈（52）部分地凹入，以减小射频线圈（11）和梯度磁场线圈（13）的总厚度。 也就是说，主线圈（52）被设计成管状，并且成像空间的中心部分处的直径r1大于主线圈端部的直径r2。 因此，RF线圈（11）可以靠近梯度磁场线圈（13）而不降低磁场产生效率。

公开(公告)号：US20120176137A1

公开(公告)日：2012-07-12

申请号：US13391066

申请日：2010-08-26

申请人： Masanao Terada ,  Mitsushi Abe ,  Yukinobu Imamura ,  Hiroyuki Takeuchi ,  Takeshi Yatsuo ,  Akira Kurome

发明人： Masanao Terada ,  Mitsushi Abe ,  Yukinobu Imamura ,  Hiroyuki Takeuchi ,  Takeshi Yatsuo ,  Akira Kurome

IPC分类号： G01R33/381

CPC分类号： G01R33/385 ,  G01R33/4215

摘要： In the magnetic resonance imaging device, the distance between the first and second coils is different in the circumferential direction and has a first region (A1) (θ=0, π) and a second region (A2) (θ=π/2) narrower than the first region (A1). In the first coil, wiring patterns (17a, 17b) on the side of a zero-plane (F0) passing through the center of the first coil and perpendicular to the axis direction (z-axis direction) meander in the circumferential direction such that the wiring patterns (17a, 17b) depart from the zero-plane (F0) in the first region (A1) and approach the zero-plane (F0) in the second region (A2). This provides a gradient magnetic field coil capable of configuring wiring patterns without using a loop coil that does not pass through the z-axis.

摘要翻译： 在磁共振成像装置中，第一和第二线圈之间的距离在圆周方向上不同，并且具有第一区域（A1）（＆eta; = 0，＆amp; pgr）和第二区域（A2）（＆Thetas; =＆pgr ; / 2）比第一区域（A1）窄。 在第一线圈中，通过第一线圈的中心并且垂直于轴线方向（z轴方向）的零平面（F0）侧的布线图案（17a，17b）在圆周方向上弯曲，使得 布线图案（17a，17b）从第一区域（A1）中的零平面（F0）偏离并接近第二区域（A2）中的零平面（F0）。 这提供了能够配置布线图案而不使用不通过z轴的环形线圈的梯度磁场线圈。

公开(公告)号：US20100321019A1

公开(公告)日：2010-12-23

申请号：US12866327

申请日：2009-01-29

申请人： Yukinobu Imamura ,  Mitsushi Abe ,  Masanao Terada ,  Akira Kurome

发明人： Yukinobu Imamura ,  Mitsushi Abe ,  Masanao Terada ,  Akira Kurome

IPC分类号： G01R33/44

CPC分类号： G01R33/385 ,  G01R33/3806

摘要： When the gradient magnetic field 9 is generated, a low magnetic field region 22 and a high magnetic field region 21 are generated where a magnetic field crossing at least one of the first forward coil 11a, a second forward coil 11b, first revere coil 11e, and a second reverse coil 11d has different intensities between the low and high magnetic field regions and the intensity in the high magnetic region is higher than the intensity in the low magnetic field region. A line width Dlh of the coil line in the high magnetic field region 21 is narrower than the line width Dll of the coil line 24 in the low magnetic field region 22. There is provided a gradient magnetic field coil can suppress in a usable range heat generations due to eddy current and due to a pulse large current which steeply varies.

摘要翻译： 当产生梯度磁场9时，产生低磁场区域22和高磁场区域21，其中与第一正向线圈11a，第二正向线圈11b，第一重心线圈11e， 并且第二反向线圈11d在低磁场区域和高磁场区域之间具有不同的强度，并且高磁区域中的强度高于低磁场区域中的强度。 高磁场区域21中的线圈线的线宽度Dlh比低磁场区域22的线圈线24的线宽度Dll窄。设置有梯度磁场线圈可以在可用范围内抑制热量 由于涡电流和由于脉冲大电流而急剧变化。

公开(公告)号：US20060220646A1

公开(公告)日：2006-10-05

申请号：US10554164

申请日：2004-04-22

申请人： Akira Kurome ,  Kenji Sakakibara ,  Hirotaka Takeshima ,  Takeshi Yatsuo ,  Hiroyuki Watanabe ,  Yoshihide Wadayama ,  Hirofumi Motoshiromizu ,  Kunihito Suzuki

发明人： Akira Kurome ,  Kenji Sakakibara ,  Hirotaka Takeshima ,  Takeshi Yatsuo ,  Hiroyuki Watanabe ,  Yoshihide Wadayama ,  Hirofumi Motoshiromizu ,  Kunihito Suzuki

IPC分类号： G01V3/00

CPC分类号： G01R33/3854 ,  G01R33/3856

摘要： An MRI apparatus having a configuration that reduces vibration of a static magnetic field generating source is provided. A closed vessel 2 of the static magnetic field generating source is provided with a rigid structure 4 for preventing transmission of vibration generated from a gradient magnetic field generating part 21 to other members via the closed vessel 2. The rigid structure 4 uses, for example, a connecting part 4 that connects a face 25 on the imaging space side and a face 26 confronting it. The rigidity of the closed vessel is thereby increased, and therefore vibration transmitted from the gradient magnetic field generating part can be reduced. The connecting part can have a through-hole structure, and in such a case, internal space of through-hole can be used for drawing cables.

摘要翻译： 提供了具有减小静磁场产生源的振动的结构的MRI装置。 静态磁场产生源的密闭容器2具有刚性结构4，用于防止从梯形磁场产生部分21产生的振动经由密封容器2传递到其它部件。 刚性结构4使用例如连接成像空间侧的面25和面对面26的连接部4。 因此，密闭容器的刚性增加，因此可以减少从梯度磁场产生部件传递的振动。 连接部件可以具有通孔结构，在这种情况下，可以使用通孔的内部空间来拉制电缆。

公开(公告)号：US09075119B2

公开(公告)日：2015-07-07

申请号：US13391066

申请日：2010-08-26

申请人： Masanao Terada ,  Mitsushi Abe ,  Yukinobu Imamura ,  Hiroyuki Takeuchi ,  Takeshi Yatsuo ,  Akira Kurome

发明人： Masanao Terada ,  Mitsushi Abe ,  Yukinobu Imamura ,  Hiroyuki Takeuchi ,  Takeshi Yatsuo ,  Akira Kurome

IPC分类号： G01R33/385 ,  G01R33/421

CPC分类号： G01R33/385 ,  G01R33/4215

摘要： In the magnetic resonance imaging device, the distance between the first and second coils is different in the circumferential direction and has a first region (A1) (θ=0, π) and a second region (A2) (θ=π/2) narrower than the first region (A1). In the first coil, wiring patterns (17a, 17b) on the side of a zero-plane (F0) passing through the center of the first coil and perpendicular to the axis direction (z-axis direction) meander in the circumferential direction such that the wiring patterns (17a, 17b) depart from the zero-plane (F0) in the first region (A1) and approach the zero-plane (F0) in the second region (A2). This provides a gradient magnetic field coil capable of configuring wiring patterns without using a loop coil that does not pass through the z-axis.

摘要翻译： 在磁共振成像装置中，第一和第二线圈之间的距离在圆周方向上不同，并且具有第一区域（A1）（＆eta; = 0，＆amp; pgr）和第二区域（A2）（＆Thetas; =＆pgr ; / 2）比第一区域（A1）窄。 在第一线圈中，通过第一线圈的中心并且垂直于轴线方向（z轴方向）的零平面（F0）侧的布线图案（17a，17b）在圆周方向上弯曲，使得 布线图案（17a，17b）从第一区域（A1）中的零平面（F0）偏离并接近第二区域（A2）中的零平面（F0）。 这提供了能够配置布线图案而不使用不通过z轴的环形线圈的梯度磁场线圈。

公开(公告)号：US08587313B2

公开(公告)日：2013-11-19

申请号：US12866327

申请日：2009-01-29

申请人： Yukinobu Imamura ,  Mitsushi Abe ,  Masanao Terada ,  Akira Kurome

发明人： Yukinobu Imamura ,  Mitsushi Abe ,  Masanao Terada ,  Akira Kurome

IPC分类号： G01V3/00

CPC分类号： G01R33/385 ,  G01R33/3806

摘要： When the gradient magnetic field 9 is generated, a low magnetic field region 22 and a high magnetic field region 21 are generated where a magnetic field crossing at least one of the first forward coil 11a, a second forward coil 11b, first revere coil 11e, and a second reverse coil 11d has different intensities between the low and high magnetic field regions and the intensity in the high magnetic region is higher than the intensity in the low magnetic field region. A line width Dlh of the coil line in the high magnetic field region 21 is narrower than the line width Dll of the coil line 24 in the low magnetic field region 22. There is provided a gradient magnetic field coil can suppress in a usable range heat generations due to eddy current and due to a pulse large current which steeply varies.

摘要翻译： 当产生梯度磁场9时，产生低磁场区域22和高磁场区域21，其中与第一正向线圈11a，第二正向线圈11b，第一重心线圈11e， 并且第二反向线圈11d在低磁场区域和高磁场区域之间具有不同的强度，并且高磁区域中的强度高于低磁场区域中的强度。 高磁场区域21中的线圈线的线宽度Dlh比低磁场区域22的线圈线24的线宽度Dll窄。设置有梯度磁场线圈可以在可用范围内抑制热量 由于涡电流和由于脉冲大电流而急剧变化。

公开(公告)号：US07852083B2

公开(公告)日：2010-12-14

申请号：US12296719

申请日：2007-04-10

申请人： Takeshi Yatsuo ,  Hiroyuki Takeuchi ,  Akira Kurome

发明人： Takeshi Yatsuo ,  Hiroyuki Takeuchi ,  Akira Kurome

IPC分类号： G01V3/00

CPC分类号： G01R33/385 ,  G01R33/3856 ,  G01R33/3858 ,  G01R33/4215 ,  G01R33/422

摘要： An MRI apparatus excellent in magnetic field generation efficiency is provided. According to this invention, a main coil (52) of a gradient magnetic field coil (13) is partially recessed to reduce the total thickness of a radio-frequency coil (11) and a gradient magnetic field coil (13). That is, the main coil (52) is designed in a tubular shape, and the diameter r1 at the center portion of the imaging space is larger than the diameter r2 of the main coil end portion. Accordingly, the RF coil (11) can be disposed to be near to the gradient magnetic field coil (13) side without lowering the magnetic field generation efficiency.

摘要翻译： 提供了磁场产生效率优异的MRI装置。 根据本发明，梯度磁场线圈（13）的主线圈（52）部分地凹入，以减小射频线圈（11）和梯度磁场线圈（13）的总厚度。 也就是说，主线圈（52）被设计成管状，并且成像空间的中心部分处的直径r1大于主线圈端部的直径r2。 因此，RF线圈（11）可以靠近梯度磁场线圈（13）而不降低磁场产生效率。