公开(公告)号：US06567685B2

公开(公告)日：2003-05-20

申请号：US09764215

申请日：2001-01-19

申请人： Hiromitsu Takamori ,  Ayumi Katsunuma ,  Hitoshi Kanazawa ,  Takeshiro Suzuki ,  Seiji Nozaki ,  Masatoshi Hanawa ,  Yoshio Machida ,  Masaaki Yamanaka ,  Masao Yui

发明人： Hiromitsu Takamori ,  Ayumi Katsunuma ,  Hitoshi Kanazawa ,  Takeshiro Suzuki ,  Seiji Nozaki ,  Masatoshi Hanawa ,  Yoshio Machida ,  Masaaki Yamanaka ,  Masao Yui

IPC分类号： A61B505

CPC分类号： G01R33/3854

摘要： A magnetic resonance imaging apparatus generates an MR signal from an object by applying a gradient field pulse generated by a gradient field coil and a high-frequency magnetic field pulse generated by a high-frequency coil to the object in a static field, and reconstructs an image on the basis of the MR signal. The gradient field coil is housed in a sealed vessel. The internal air in the sealed vessel is exhausted by the pump to prevent noise. By controlling the operation of the pump using a control circuit, noise in imaging operation can be reduced more effectively.

摘要翻译： 磁共振成像装置通过将由梯度场线圈产生的梯度场脉冲和由高频线圈产生的高频磁场脉冲施加到静态场中的对象来生成来自对象的MR信号，并且重建 基于MR信号的图像。 梯度场线圈容纳在密封容器中。 密封容器中的内部空气被泵排出，以防止噪音。 通过使用控制电路控制泵的操作，可以更有效地降低成像操作中的噪声。

公开(公告)号：US07852080B2

公开(公告)日：2010-12-14

申请号：US11944539

申请日：2007-11-23

申请人： Hiromitsu Takamori ,  Ayumi Katsunuma ,  Kazuhiko Tsujita ,  Souhei Fukunishi

发明人： Hiromitsu Takamori ,  Ayumi Katsunuma ,  Kazuhiko Tsujita ,  Souhei Fukunishi

IPC分类号： G01V3/00

CPC分类号： G01R33/30 ,  A61B5/0555 ,  G01R33/28 ,  G01R33/288 ,  G01R33/307

摘要： An MRI apparatus has a gantry, a bed and a lighting unit collective including a plurality of lighting units. The gantry accommodates a static field magnet configured to generate a static field, a gradient coil configured to generate a gradient magnetic field, and an RF coil configured to transmit or receive an RF pulse as well as having an opening into which a person is inserted. The bed has a removable table-top for an inside and an outside of the opening. The lighting unit group is disposed at at least one of an inside position of the opening and an outside position from which an inside of the opening can be lighted so that the lighting units can carry out lighting such that an amount of emitting light increases bit by bit from a bedside to a counter bedside opposite to the bedside across the opening.

摘要翻译： MRI装置具有台架，床和集合的照明单元，包括多个照明单元。 台架容纳被配置为产生静态场的静磁场磁体，被配置为产生梯度磁场的梯形线圈和被配置为发送或接收RF脉冲以及具有插入人的开口的RF线圈。 床上有一个可拆卸的桌面，用于开口的内部和外部。 照明单元组被布置在开口的内部位置和外部位置中的至少一个处，从该外部位置可以点亮开口的内部，使得照明单元可以执行照明，使得发光量增加比特由 从床边到位于开口处的床边对面的对面床边。

公开(公告)号：US08362774B2

公开(公告)日：2013-01-29

申请号：US12273013

申请日：2008-11-18

申请人： Ayumi Katsunuma ,  Kazuhiko Tsujita ,  Hiromitsu Takamori

发明人： Ayumi Katsunuma ,  Kazuhiko Tsujita ,  Hiromitsu Takamori

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/3403 ,  G01R33/34076

摘要： A magnetic resonance apparatus includes a static field magnet, a gradient field coil, a cover which forms, inside the static field magnet and the gradient field coil, an internal space in which a bed top and a subject placed on the bed top are to be inserted, a radio frequency coil unit which includes a cylindrical base portion and first electronic elements and second electronic elements and is placed in the internal space, a first flow path which is formed between the base portion and the cover to cool the first electronic elements, a second flow path which is formed between the base portion and the cover and communicates with the first flow path to cool the second electronic elements, and a cooling unit which cools the radio frequency coil unit by generating a cooling gas flow flowing from the first flow path to the second flow path.

摘要翻译： 磁共振装置包括静磁场磁场，梯度磁场线圈，在静磁场磁场和梯度磁场线圈的内部形成的盖子，其中床顶和放置在床顶的对象将成为 插入的射频线圈单元，其包括圆柱形基部和第一电子元件和第二电子元件，并且被放置在内部空间中，形成在基部和盖之间以冷却第一电子元件的第一流路， 第二流路，其形成在所述基部和所述盖之间并与所述第一流路连通，以冷却所述第二电子元件;以及冷却单元，其通过产生从所述第一流动流动的冷却气流来冷却所述射频线圈单元 到第二流路的路径。

公开(公告)号：US20090134875A1

公开(公告)日：2009-05-28

申请号：US12273787

申请日：2008-11-19

申请人： Sadanori Tomiha ,  Takahiro Ishihara ,  Shinji Mitsui ,  Hiromitsu Takamori ,  Ayumi Katsunuma

发明人： Sadanori Tomiha ,  Takahiro Ishihara ,  Shinji Mitsui ,  Hiromitsu Takamori ,  Ayumi Katsunuma

IPC分类号： G01R33/32

CPC分类号： G01R33/34046 ,  G01R33/28 ,  G01R33/34076

摘要： When an RF coil in a magnetic resonance imaging system includes a plurality of conductive members and circuit elements connected to the conductive members, at least part of each of the conductive members is formed to a thickness so as to dissipate heat generated from the circuit elements. Moreover, the magnetic resonance imaging system is configured to include a cooling unit that circulates cooling air over the surfaces of the circuit elements provided in the RF coil.

摘要翻译： 当磁共振成像系统中的RF线圈包括连接到导电构件的多个导电构件和电路元件时，每个导电构件的至少一部分形成为使得散发从电路元件产生的热量的厚度。 此外，磁共振成像系统被配置为包括使冷却空气在设置在RF线圈中的电路元件的表面上循环的冷却单元。

公开(公告)号：US20090134874A1

公开(公告)日：2009-05-28

申请号：US12273013

申请日：2008-11-18

申请人： Ayumi Katsunuma ,  Kazuhiko Tsujita ,  Hiromitsu Takamori

发明人： Ayumi Katsunuma ,  Kazuhiko Tsujita ,  Hiromitsu Takamori

IPC分类号： G01R33/34

CPC分类号： G01R33/34046 ,  G01R33/3403 ,  G01R33/34076

摘要： A magnetic resonance apparatus includes a static field magnet, a gradient field coil, a cover which forms, inside the static field magnet and the gradient field coil, an internal space in which a bed top and a subject placed on the bed top are to be inserted, a radio frequency coil unit which includes a cylindrical base portion and first electronic elements and second electronic elements and is placed in the internal space, a first flow path which is formed between the base portion and the cover to cool the first electronic elements, a second flow path which is formed between the base portion and the cover and communicates with the first flow path to cool the second electronic elements, and a cooling unit which cools the radio frequency coil unit by generating a cooling gas flow flowing from the first flow path to the second flow path.

摘要翻译： 磁共振装置包括静磁场磁场，梯度磁场线圈，在静磁场磁场和梯度磁场线圈的内部形成的盖子，其中床顶和放置在床顶的对象将成为 插入的射频线圈单元，其包括圆柱形基部和第一电子元件和第二电子元件，并且被放置在内部空间中，形成在基部和盖之间以冷却第一电子元件的第一流路， 第二流路，其形成在所述基部和所述盖之间并与所述第一流路连通，以冷却所述第二电子元件;以及冷却单元，其通过产生从所述第一流动流动的冷却气流来冷却所述射频线圈单元 到第二流路的路径。

公开(公告)号：US08035385B2

公开(公告)日：2011-10-11

申请号：US12273787

申请日：2008-11-19

申请人： Sadanori Tomiha ,  Takahiro Ishihara ,  Shinji Mitsui ,  Hiromitsu Takamori ,  Ayumi Katsunuma

发明人： Sadanori Tomiha ,  Takahiro Ishihara ,  Shinji Mitsui ,  Hiromitsu Takamori ,  Ayumi Katsunuma

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/28 ,  G01R33/34076

摘要： When an RF coil in a magnetic resonance imaging system includes a plurality of conductive members and circuit elements connected to the conductive members, at least part of each of the conductive members is formed to a thickness so as to dissipate heat generated from the circuit elements. Moreover, the magnetic resonance imaging system is configured to include a cooling unit that circulates cooling air over the surfaces of the circuit elements provided in the RF coil.

摘要翻译： 当磁共振成像系统中的RF线圈包括连接到导电构件的多个导电构件和电路元件时，每个导电构件的至少一部分形成为使得散发从电路元件产生的热量的厚度。 此外，磁共振成像系统被配置为包括使冷却空气在设置在RF线圈中的电路元件的表面上循环的冷却单元。

公开(公告)号：US20080169813A1

公开(公告)日：2008-07-17

申请号：US11958776

申请日：2007-12-18

申请人： Masatoshi YAMASHITA ,  Hiromitsu Takamori

发明人： Masatoshi YAMASHITA ,  Hiromitsu Takamori

IPC分类号： G01R33/36 ,  G01R33/30

CPC分类号： G01R33/3856 ,  G01R33/3873 ,  G01R33/4215

摘要： Provided is a gradient magnetic field coil unit includes a main coil layer that has a main coil for generating a gradient magnetic field and is formed in a substantially cylindrical shape, a shield coil layer that is attached to the outside of the main coil layer and has a shield coil for generating a magnetic field which shields a leakage magnetic field from the main coil, and a cooling layer that is attached between the main coil layer and the shield coil layer and has a plurality of flow paths for refrigerant, which are arranged in a substantially circumferential shape with the central axis of the main coil layer set to the center thereof, and a plurality of shim tray holding sections which hold a shim tray for a magnetic body.

摘要翻译： 提供了一种梯度磁场线圈单元，包括具有用于产生梯度磁场的主线圈并形成为大致圆筒形的主线圈层，安装在主线圈层外侧的屏蔽线圈层， 用于产生屏蔽来自主线圈的泄漏磁场的磁场的屏蔽线圈，以及安装在主线圈层和屏蔽线圈层之间并具有多个用于制冷剂的流路的冷却层，其布置在 大致圆周的形状，其中主线圈层的中心轴线设置在其中心，以及多个垫片托盘保持部分，其保持磁性体的垫片托盘。

公开(公告)号：US20060106302A1

公开(公告)日：2006-05-18

申请号：US11264373

申请日：2005-11-02

申请人： Hiromitsu Takamori

发明人： Hiromitsu Takamori

IPC分类号： A61B5/05

CPC分类号： G01R33/28 ,  G01R33/34007

摘要： A magnetic resonance imaging apparatus comprising: a magnet configured to form a static magnetic field in an imaging area; a cylindrical structure having a guide; a radio frequency coil configured to receive a nuclear magnetic resonance signal generated by transmitting a radio frequency signal into a object set in the static magnetic field; and a radio frequency coil drive structure configured to adjust a distance between the radio frequency coil and a body surface of the object by using a moving structure configured to move along with the guide, a wire configured to move the moving structure and a motor connected to the wire.

摘要翻译： 一种磁共振成像装置，包括：被配置为在成像区域中形成静磁场的磁体; 具有引导件的圆柱形结构; 射频线圈，被配置为接收通过将射频信号发送到静态磁场中的对象集中而产生的核磁共振信号; 以及射频线圈驱动结构，其被配置为通过使用被构造成与所述引导件一起移动的移动结构来调节所述射频线圈与所述物体的身体表面之间的距离，被配置为使所述移动结构移动的线和连接到 电线。

公开(公告)号：US08487618B2

公开(公告)日：2013-07-16

申请号：US12626044

申请日：2009-11-25

申请人： Hiromitsu Takamori

发明人： Hiromitsu Takamori

IPC分类号： G01R33/3403 ,  G01R33/34 ,  G01R33/3804

CPC分类号： G01R33/34076 ,  G01R33/34007 ,  G01R33/3403

摘要： A radio frequency coil unit includes a chassis which has a tubiform inner cylinder, a plurality of flanges arranged apart from each other, each of the plurality of flanges provided in a state of protruding outwards from the inner cylinder while in contact with a whole outer circumference surface of the inner cylinder, and a tubiform external cylinder in which each of the plurality of flanges is provided in a state of contacting an inner surface thereof, wherein the chassis forms a flow path of cooling air as a space surrounded by the inner cylinder, the plurality of flanges and the external cylinder, and a radio frequency coil which is mounted on the inner cylinder or the external cylinder to be positioned in the space surrounded by the inner cylinder, the plurality flanges and the external cylinder.

摘要翻译： 射频线圈单元包括：底盘，其具有筒状内筒，多个凸缘彼此分离设置，所述多个凸缘中的每一个凸缘设置成与所述内筒向外突出的状态，同时与整个外周接触 内筒的表面以及与内表面接触的状态下设置有多个凸缘的各个的筒状的外筒，其特征在于，所述底盘形成作为由所述内筒包围的空间的冷却空气的流路， 多个凸缘和外筒，以及安装在内筒或外筒上的射频线圈，以定位在由内筒，多个凸缘和外筒所围绕的空间中。

公开(公告)号：US07696752B2

公开(公告)日：2010-04-13

申请号：US11775439

申请日：2007-07-10

申请人： Hiromitsu Takamori

发明人： Hiromitsu Takamori

IPC分类号： G01V3/00

CPC分类号： G01R33/3415 ,  G01R33/307 ,  G01R33/34084 ,  G01R33/56375

摘要： A magnetic resonance imaging apparatus has a static field magnet, gradient coils, a gantry including an opening and storing the static field magnet the gradient coils, a bed structure for advancing and retreating a table-top, on which an object can be placed, with respect to the opening, a lower coil formed by a radio frequency coil disposed below the table-top, and a movement control unit configured to control the lower coil to be movable.

摘要翻译： 磁共振成像装置具有静磁场，梯度线圈，具有开口的台架，并将静磁场磁体存储在梯度线圈上;床结构，用于前进和后退可放置物体的桌面， 相对于开口，由设置在台面下方的射频线圈形成的下线圈以及被配置为控制下线圈可移动的移动控制单元。