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公开(公告)号：US20100267567A1
公开(公告)日：2010-10-21
申请号：US12746778
申请日：2008-12-03
IPC分类号： H01F6/04 , G01R33/3815
CPC分类号： G01R33/3815 , H01F6/04
摘要： A magnet system, in particular for a magnetic resonance examination system, comprises a superconductive main magnet having a near group of coil windings and a remote group of coil windings. A gradient coil system forms a source of power dissipation into at least part of the coil windings. The near group of coil windings and the remote group of coil windings are near and remote from the source of power dissipation, respectively A cooling system has a high-temperature cooling station and a low-temperature cooling station. The high-temperature cooling station cools mainly the near group of coil windings. The low temperature cooling station cools mainly the remote group of coil windings. The near and remote group optionally are made of different superconductive materials. Thus, additional degrees of freedom are achieved which allow less expensive magnet design.
摘要翻译： 特别是用于磁共振检查系统的磁体系统包括具有近组线圈绕组和远程线圈绕组的超导主磁体。 梯度线圈系统形成至少部分线圈绕组的功率耗散源。 近组线圈绕组和远端线圈绕组分别靠近和远离功率源，A冷却系统有一个高温冷却站和一个低温冷却站。 高温冷却站主要冷却近组线圈绕组。 低温冷却站主要冷却远程组的线圈绕组。 近距离和远程组可选地由不同的超导材料制成。 因此，实现了允许较便宜的磁体设计的附加自由度。
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公开(公告)号：US08134368B2
公开(公告)日：2012-03-13
申请号：US12513188
申请日：2007-11-05
IPC分类号： G01V3/00
CPC分类号： G01R33/3815 , G01R33/288 , H01F6/02
摘要： The present invention relates to a magnetic resonance examination system (10) and to a method of operating such a magnetic resonance examination system (10). In particular the present invention relates to a magnetic resonance examination system (10) comprising a superconducting main magnet (20) surrounding an examination region (18) and generating a main magnetic field in the examination region (18), and further comprising a magnetic field gradient system (30) selectively causing alternating gradient magnetic fields in the examination region (18), said magnetic field gradient system (30) being coupled to the main magnet (20). In order to provide a technique to reliably detect a quench of the superconducting main magnet (20) of such a magnetic resonance examination system (10) a detecting device (91) is suggested for detecting an emerging quench of the main magnet (20), said detecting device (91) being adapted to operate in different modes depending on the mode of operation of the magnetic resonance examination system (e.g. ramp-up, ramp-down or continuous operation).
摘要翻译： 本发明涉及磁共振检查系统（10）以及操作这种磁共振检查系统（10）的方法。 特别地，本发明涉及一种磁共振检查系统（10），其包括围绕检查区域（18）并在检查区域（18）中产生主磁场的超导主磁体（20），并且还包括磁场 梯度系统（30）选择性地在检查区域（18）中引起交变梯度磁场，所述磁场梯度系统（30）耦合到主磁体（20）。 为了提供可靠地检测这种磁共振检查系统（10）的超导主磁体（20）的淬火的技术，建议检测装置（91）用于检测主磁体（20）的出现的淬火， 所述检测装置（91）适于根据磁共振检查系统的操作模式（例如，上升，下降或连续操作）以不同的模式操作。
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3.发明申请ELECTROMAGNET WITH LAMINATED FERROMAGNETIC CORE AND SUPERCONDUCTING FILM FOR SUPPRESSING EDDY MAGNETIC FIELD 审中-公开具有层压铁磁芯的电磁体和用于抑制EDDY磁场的超导膜公开(公告)号：US20100304976A1
公开(公告)日：2010-12-02
申请号：US12808411
申请日：2008-12-19
IPC分类号： H01F6/00 , H01F3/02 , H01L39/02 , G01R33/035
CPC分类号： G01R33/381 , G01R33/385 , H01F3/02 , H01F7/202 , H01F27/34 , H01F2027/348
摘要： An electromagnet comprises: a ferromagnetic core (50, 72); electrically conductive windings (34, 76) disposed around the ferromagnetic core such that current flowing in the windings magnetizes the ferromagnetic core; and a superconducting film (60, 80, 82) arranged to support eddy current cancelling supercurrent that suppresses eddy current formation in the ferromagnetic core when the windings magnetize the ferromagnetic core. A magnetic resonance scanner embodiment includes a main magnet (20) generating a static magnetic field and a magnetic field gradient system (30) with a plurality of said electromagnets (34, 50, 60) configured to superimpose selected magnetic field gradients on the static magnetic field.
摘要翻译： 电磁铁包括：铁磁芯（50,72）; 布置在铁磁芯周围的导电绕组（34,76），使得在绕组中流动的电流使铁磁芯磁化; 以及布置成支撑涡流消除超导电流的超导膜（60,80,82），当绕组磁化铁磁芯时，其抑制铁磁芯中的涡流形成。 磁共振扫描器实施例包括产生静磁场的主磁体（20）和具有多个所述电磁体（34,50,60）的磁场梯度系统（30），所述多个所述电磁体被配置为将选定的磁场梯度叠加在静磁 领域。
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公开(公告)号：US20100056378A1
公开(公告)日：2010-03-04
申请号：US12513188
申请日：2007-11-05
IPC分类号： G01R33/035
CPC分类号： G01R33/3815 , G01R33/288 , H01F6/02
摘要： The present invention relates to a magnetic resonance examination system (10) and to a method of operating such a magnetic resonance examination system (10). In particular the present invention relates to a magnetic resonance examination system (10) comprising a superconducting main magnet (20) surrounding an examination region (18) and generating a main magnetic field in the examination region (18), and further comprising a magnetic field gradient system (30) selectively causing alternating gradient magnetic fields in the examination region (18), said magnetic field gradient system (30) being coupled to the main magnet (20). In order to provide a technique to reliably detect a quench of the superconducting main magnet (20) of such a magnetic resonance examination system (10) a detecting device (91) is suggested for detecting an emerging quench of the main magnet (20), said detecting device (91) being adapted to operate in different modes depending on the mode of operation of the magnetic resonance examination system (e.g. ramp-up, ramp-down or continuous operation).
摘要翻译： 本发明涉及磁共振检查系统（10）以及操作这种磁共振检查系统（10）的方法。 特别地，本发明涉及一种磁共振检查系统（10），其包括围绕检查区域（18）并在检查区域（18）中产生主磁场的超导主磁体（20），并且还包括磁场 梯度系统（30）选择性地在检查区域（18）中引起交变梯度磁场，所述磁场梯度系统（30）耦合到主磁体（20）。 为了提供可靠地检测这种磁共振检查系统（10）的超导主磁体（20）的淬火的技术，建议检测装置（91）用于检测主磁体（20）的出现的淬火， 所述检测装置（91）适于根据磁共振检查系统的操作模式（例如，上升，下降或连续操作）以不同的模式操作。
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公开(公告)号：US09608395B2
公开(公告)日：2017-03-28
申请号：US13991629
申请日：2011-12-07
IPC分类号： G01V3/00 , H01R39/08 , A61B5/055 , A61B6/03 , A61B6/00 , G01R33/48 , G01R33/36 , A61N5/10 , A61B5/00
CPC分类号： H01R39/08 , A61B5/0035 , A61B5/055 , A61B6/032 , A61B6/4417 , A61B6/56 , A61N5/1081 , A61N2005/1055 , G01R33/36 , G01R33/4808 , G01R33/4812 , H01R2201/12
摘要： A medical apparatus (600) including: a magnetic resonance imaging system (602), a medical device (634), and a slip ring assembly (400, 500) for supplying electrical power to the medical device. The slip ring assembly includes: a cylindrical body (100), a rotating member (402) for rotating the medical device, a first cylindrical conductor attached to the cylindrical body, a second cylindrical conductor (108), a first set of conductive elements (112, 712) connected to the second cylindrical conductor; and a brush assembly (406) comprising a first brush (302) and a second brush (304). The first brush is operable to contact the first cylindrical conductor. The second brush is operable to contact the set of conductive elements. The first and second cylindrical conductive elements overlap at least partially. The second cylindrical conductor is connected to the cylindrical body. The first cylindrical conductor and the second cylindrical conductors are electrically isolated.
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公开(公告)号：US20140043027A1
公开(公告)日：2014-02-13
申请号：US13991629
申请日：2011-12-07
CPC分类号： H01R39/08 , A61B5/0035 , A61B5/055 , A61B6/032 , A61B6/4417 , A61B6/56 , A61N5/1081 , A61N2005/1055 , G01R33/36 , G01R33/4808 , G01R33/4812 , H01R2201/12
摘要： A medical apparatus (600) including: a magnetic resonance imaging system (602), a medical device (634), and a slip ring assembly (400, 500) for supplying electrical power to the medical device. The slip ring assembly includes: a cylindrical body (100), a rotating member (402) for rotating the medical device, a first cylindrical conductor attached to the cylindrical body, a second cylindrical conductor (108), a first set of conductive elements (112, 712) connected to the second cylindrical conductor; and a brush assembly (406) comprising a first brush (302) and a second brush (304). The first brush is operable to contact the first cylindrical conductor. The second brush is operable to contact the set of conductive elements. The first and second cylindrical conductive elements overlap at least partially. The second cylindrical conductor is connected to the cylindrical body. The first cylindrical conductor and the second cylindrical conductors are electrically isolated.
摘要翻译： 一种医疗设备（600），包括：磁共振成像系统（602），医疗设备（634）和用于向医疗设备供电的滑环组件（400,500）。 滑环组件包括：圆柱体（100），用于旋转医疗装置的旋转构件（402），附接到圆柱体的第一圆柱形导体，第二圆柱形导体（108），第一组导电元件 112,712）连接到第二圆柱形导体; 和包括第一刷（302）和第二刷（304）的刷组件（406）。 第一刷可操作以接触第一圆柱形导体。 第二刷可操作以接触该组导电元件。 第一和第二圆柱形导电元件至少部分重叠。 第二圆柱形导体连接到圆柱体。 第一圆柱形导体和第二圆柱形导体是电隔离的。
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公开(公告)号：US20130106420A1
公开(公告)日：2013-05-02
申请号：US13696127
申请日：2011-05-13
IPC分类号： G01R33/385
CPC分类号： G01R33/385 , G01R33/3854 , G01R33/4215
摘要： A magnetic resonance imaging magnet assembly (100) comprising: a magnet (102) adapted for generating a main magnetic field for aligning the magnetic spins of nuclei of a subject (502) located within an imaging volume (504); and a gradient coil (103) for generating a gradient magnetic field for spatial encoding of the magnetic resonance signal of spins of nuclei within the imaging volume, wherein the gradient coil is adapted to be mounted into the magnet, wherein the gradient coil comprises: a first gradient coil section (112), wherein the first gradient coil section comprises a first rigid element (113), a second gradient coil section (114), wherein the second gradient coil section also comprises a second rigid element (115), a connecting element (116, 300, 302, 304, 400) for joining the two half gradient coils, wherein the connecting element comprises an elastic material (116), wherein the elastic material is in contact with the first rigid element and the second rigid element.
摘要翻译： 一种磁共振成像磁体组件（100），包括：适于产生主磁场的磁体（102），用于对准位于成像体积（504）内的对象（502）的核的磁旋转; 以及梯度线圈（103），用于产生用于空间编码所述成像体积内的核心旋转的磁共振信号的梯度磁场，其中所述梯度线圈适于安装到所述磁体中，其中所述梯度线圈包括： 第一梯度线圈段（112），其中第一梯度线圈段包括第一刚性元件（113），第二梯形线圈段（114），其中第二梯形线圈段还包括第二刚性元件（115），连接 用于连接两个半梯度线圈的元件（116,3300,302,304,400），其中所述连接元件包括弹性材料（116），其中所述弹性材料与所述第一刚性元件和所述第二刚性元件接触。
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8.发明申请公开(公告)号：US20120089010A1
公开(公告)日：2012-04-12
申请号：US13377831
申请日：2010-06-23
申请人： Christoph Leussler , Peter Boernert , Daniel Wirtz , Bernd David , Holger Eggers , Jochen Keupp , Johannes Adrianus Overweg , Rainer Eckart
发明人： Christoph Leussler , Peter Boernert , Daniel Wirtz , Bernd David , Holger Eggers , Jochen Keupp , Johannes Adrianus Overweg , Rainer Eckart
IPC分类号： A61B5/055
CPC分类号： A61M16/10 , A61B5/055 , A61M16/14 , A61M2016/0015 , A61M2202/066
摘要： A dispenser (132), a magnetic resonance imaging system (100), and a method for using hyperpolarized contrast agent (304) during a magnetic resonance imaging examination. The dispenser comprises an attachment component (136) for a face piece (138). The face piece is adapted for receiving the surface of a subject (114) such that when the subject inhales hyperpolarized contrast agent enters the respiratory system of the subject. The dispenser further comprises a reservoir (300) adapted for receiving the hyperpolarized contrast agent. The dispenser further comprises a gas flow (406) tube connected to the attachment component and a vaporizer (406, 408, 412, 510, 602, 606) for vaporizing the hyperpolarized contrast agent in the gas flow tube into a hyperpolarized vapor. The dispenser further comprises a controller (402) for controlling when the vaporizer vaporizes the hyperpolarized contrast agent.
摘要翻译： 分配器（132），磁共振成像系统（100）以及在磁共振成像检查期间使用超极化造影剂（304）的方法。 分配器包括用于面件（138）的附接部件（136）。 面部件适于接纳被检体（114）的表面，使得当受试者吸入超极化造影剂进入受试者的呼吸系统时。 分配器还包括适于接收超极化造影剂的贮存器（300）。 分配器还包括连接到附接部件的气流（406）管和用于将气体流管中的超极化造影剂蒸发成超极化蒸气的蒸发器（406,408,412,510,602,606）。 分配器还包括控制器（402），用于控制何时蒸发器蒸发超极化造影剂。
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9.发明授权MR apparatus and gradient saturation method for suppressing MR signals from peripheral regions situated outside an isocenter 失效用于抑制位于等角点外部的周边区域的MR信号的MR装置和梯度饱和方法公开(公告)号：US06714011B1
公开(公告)日：2004-03-30
申请号：US09596215
申请日：2000-06-19
IPC分类号： G01V300
CPC分类号： G01R33/482 , G01R33/4838
摘要： The invention relates to an MR method wherein disturbing MR signals from peripheral regions outside the isocenter are suppressed in that a location-dependent, brief, steady magnetic field is produced simultaneously with an RF pulse. When the field strength of the magnetic field in the peripheral regions is either larger or smaller than that at the isocenter, it can be achieved that exclusively the nuclear magnetization in the peripheral regions is excited, which magnetization can subsequently be dephased. The subsequent MR sequence then influences only the region around the isocenter.
摘要翻译： 本发明涉及一种MR方法，其中抑制了来自等角点之外的外围区域的MR信号，因为与RF脉冲同时产生位置相关的简短的稳定磁场。 当外围区域的磁场的场强大于或小于等角点处的磁场强度时，可以实现仅外围区域的核磁化被激发，随后磁化可以被去相位。 随后的MR序列仅影响等角点周围的区域。
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公开(公告)号：US10173077B2
公开(公告)日：2019-01-08
申请号：US13131476
申请日：2009-11-19
摘要： A therapeutic apparatus comprising: a magnetic resonance imaging system adapted for acquiring a set of magnetic resonance imaging data in an imaging zone, wherein the magnetic resonance imaging system comprises a means for generating a magnetic field, a guiding means adapted for guiding a beam of charged particles to a target zone within a subject such that the beam encloses an angle with the magnetic field lines of the magnetic field within the imaging zone, the angle being between 0 degrees and 30 degrees, wherein the imaging zone comprises the target zone, a zone determination means for determining the location of the target zone within the subject using the set of magnetic resonance imaging data.
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