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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。
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公开(公告)号：US07852080B2
公开(公告)日：2010-12-14
申请号：US11944539
申请日：2007-11-23
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。
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3.发明授权MRI system and RF coil with enhanced cooling in vicinty of included circuit elements 有权MRI系统和RF线圈在附近的电路元件附近具有增强的冷却公开(公告)号：US08035385B2
公开(公告)日：2011-10-11
申请号：US12273787
申请日：2008-11-19
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。
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公开(公告)号：US20090134875A1
公开(公告)日：2009-05-28
申请号：US12273787
申请日：2008-11-19
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。
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公开(公告)号：US20090134874A1
公开(公告)日：2009-05-28
申请号：US12273013
申请日：2008-11-18
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。
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6.发明授权Cooling MRI components/electronic circuit elements/bed through gas flow paths formed between cylindrical RF coil unit base and cylindrical bore tube 有权通过在圆柱形RF线圈单元基座和圆柱孔管之间形成的气流通道冷却MRI部件/电子电路元件/床公开(公告)号：US08362774B2
公开(公告)日：2013-01-29
申请号：US12273013
申请日：2008-11-18
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。
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公开(公告)号：US20080204017A1
公开(公告)日：2008-08-28
申请号：US11944539
申请日：2007-11-23
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。
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公开(公告)号：US20090039887A1
公开(公告)日：2009-02-12
申请号：US12188231
申请日：2008-08-08
申请人： Ayumi Katsunuma , Kiyoshi Yamashita
发明人： Ayumi Katsunuma , Kiyoshi Yamashita
IPC分类号： G01R33/34
CPC分类号： G01R33/3854
摘要： A apparatus includes a bore tube inside which an imaging space is formed to place a subject, a static field generating section which is placed outside the tube and generates a static field in the imaging space, a gradient field generating section which is placed between the tube and the static field generating section and generates a gradient field to superimpose on the static field, cover which is mounted to side end of the static field generating section and forms a vacuum space in a surrounding of the gradient filed generating section around together with the tube and the static field generating section, wherein the cover are fixed by fixation parts thereof to the static field generating section and a load of an air pressure to be applied on the covers at a different part from the fixation part is received by the static field generating section.
摘要翻译： 一种装置，包括：孔内管，其中形成有成像空间以放置被摄体;静电场产生部，其放置在所述管的外部，并在所述成像空间中产生静电场;梯度场产生部， 和静电场产生部分，并且产生一个梯度场，以将其叠加在静态场上，盖子安装在静电场产生部分的侧端，并在该梯度场发生部分的周围与管子一起形成真空空间 和静电场产生部分，其中盖子通过其固定部分固定到静电场产生部分，并且在与固定部分不同的部分处施加到盖子上的空气压力的载荷被静电场产生 部分。
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9.发明授权Magnetic resonance imaging system having mechanically decoupled field generators to reduce ambient acoustic noise 失效磁共振成像系统具有机械解耦场发生器，以减少环境噪声
公开(公告)号：US6043653A
公开(公告)日：2000-03-28
申请号：US951631
申请日：1997-10-16
申请人： Hiromitu Takamori , Ayumi Katsunuma , Yasuhiro Uosaki , Takeshi Toyoshima , Kazuhiro Iinuma , Hiromi Kawamoto , Hitoshi Yamagata
发明人： Hiromitu Takamori , Ayumi Katsunuma , Yasuhiro Uosaki , Takeshi Toyoshima , Kazuhiro Iinuma , Hiromi Kawamoto , Hitoshi Yamagata
IPC分类号： A61B5/055 , G01R33/385 , G01V3/00
CPC分类号： G01R33/3854 , G01R33/3856
摘要： Solid-borne vibrations and airborne vibrations from a gradient coil unit in an MRI gantry environment are markedly reduced thereby reducing ambient noise occurring due to the vibrations. Support assemblies retain the gradient coil unit in a mechanically-uncoupled or substantially-uncoupled state relative to the magnet by supporting the coil unit at separate positions on the floor (e.g., with anchor bolts rigidly coupling coil support assemblies to the floor). Moreover, the gradient coil unit and at least parts of the support assemblies may be retained in a vacuum space.
摘要翻译： 在MRI龙门架环境中来自梯形线圈单元的固体振动和空气传播振动显着降低，从而减少由振动引起的环境噪声。 支撑组件通过将线圈单元支撑在地板上的分开的位置（例如，用锚定螺栓将线圈支撑组件刚性地联接到地板）上而将梯度线圈单元相对于磁体保持机械不连接或基本上不耦合的状态。 此外，梯度线圈单元和支撑组件的至少一部分可以保持在真空空间中。
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公开(公告)号：US07906967B2
公开(公告)日：2011-03-15
申请号：US12188231
申请日：2008-08-08
申请人： Ayumi Katsunuma , Kiyoshi Yamashita
发明人： Ayumi Katsunuma , Kiyoshi Yamashita
IPC分类号： G01V3/00
CPC分类号： G01R33/3854
摘要： An apparatus includes a bore tube inside which an imaging space is formed to place a subject, a static field generating section which is placed outside the tube and generates a static field in the imaging space, a gradient field generating section which is placed between the tube and the static field generating section and generates a gradient field to superimpose on the static field, a cover which is mounted to a side end of the static field generating section and forms a vacuum space in a surrounding of the gradient field generating section together with the tube and the static field generating section, wherein the cover is fixed by fixation parts thereof to the static field generating section and a load of an air pressure to be applied on the cover at a different part from the fixation part is received by the static field generating section.
摘要翻译： 一种装置，包括：钻孔管，其内部形成有成像空间以放置被摄体;静电场产生部，其放置在所述管的外部，并在所述成像空间中产生静电场;梯度场产生部， 和静态场产生部分，并产生叠加在静态场上的梯度场，安装在静电场产生部分的侧端并在梯度场产生部分的周围形成真空空间的盖以及 管和静电场产生部分，其中通过其固定部分将固定部分固定到静电场产生部分上，并且在与固定部分不同的部分处施加在盖上的空气压力的负载被静态场接收 生成部分。
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