利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

34 条记录 (耗时 0.022 秒)

    COIL ARRANGEMENT
    2.
    发明申请
    COIL ARRANGEMENT 有权
    线圈布置

    公开(公告)号：US20120068709A1

    公开(公告)日：2012-03-22

    申请号：US13262145

    申请日：2010-03-30

    申请人： Stuart Crozier ,  Adnan Trakic ,  Ewald Weber ,  Bing keong Li ,  Hua Wang

    发明人： Stuart Crozier ,  Adnan Trakic ,  Ewald Weber ,  Bing keong Li ,  Hua Wang

    IPC分类号： G01R33/28

    CPC分类号： G01R33/3415 ,  A61B5/055 ,  A61B5/4528 ,  A61B5/4533 ,  G01R33/365

    摘要： A coil arrangement for use in a magnetic resonance imaging system, the imaging system being for generating a magnetic imaging field in an imaging region, the coil arrangement including at least three coils for at least one of transmitting, receiving or transceiving an electromagnetic field, each coil being provided on a coil geometry and being substantially orthogonal.

    摘要翻译： 一种用于磁共振成像系统的线圈装置，所述成像系统用于在成像区域中产生磁成像场，所述线圈装置包括用于发送，接收或收发电磁场中的至少一个的至少三个线圈，每个线圈 线圈设置在线圈几何形状上并且基本正交。

    Shielded, asymmetric magnets for use in magnetic resonance imaging
    4.
    发明申请
    Shielded, asymmetric magnets for use in magnetic resonance imaging 有权
    用于磁共振成像的屏蔽非对称磁体

    公开(公告)号：US20060255805A1

    公开(公告)日：2006-11-16

    申请号：US11390913

    申请日：2006-03-28

    申请人： Stuart Crozier ,  Feng Liu

    发明人： Stuart Crozier ,  Feng Liu

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3815 ,  G01R33/381 ,  G01R33/421

    摘要： Magnetic resonance systems are provided which employ a shielded, asymmetric magnet to produce an offset dsv. The magnets include at least a first coil C1, which carries current in a first direction, and two coils C2 and C3, which are located at least in part within the internal envelope EC1 defined by the first coil and which carry current in an opposite direction to the first coil. The magnets are shielded by a shielding coil C4, which carries current in a direction opposite to that of the first coil, and/or a ferromagnetic structure (FS). The magnets can include additional coils, such as a fifth coil C5 at the magnet's distal end. The magnets can be used in, for example, orthopedic imaging.

    摘要翻译： 提供了使用屏蔽的不对称磁体产生偏移dsv的磁共振系统。 磁体包括至少第一线圈C 1，其沿第一方向承载电流，以及两个线圈C 2和C 3 3，其中 至少部分地位于由第一线圈限定的内部包络E C1 C1中，并且沿与第一线圈相反的方向承载电流。 这些磁体由与第一线圈相反的方向的电流和/或铁磁结构（FS）的屏蔽线圈C 4屏蔽。 磁体可以包括附加的线圈，例如磁体远端处的第五线圈C 5。 磁体可用于例如矫形成像。

    Coil array for magnetic resonance imaging
    5.
    发明申请
    Coil array for magnetic resonance imaging 失效
    用于磁共振成像的线圈阵列

    公开(公告)号：US20060119358A1

    公开(公告)日：2006-06-08

    申请号：US10525932

    申请日：2003-08-29

    申请人： David Doddrell ,  Stuart Crozier ,  Kurt Luescher ,  Wolfgang Roffman

    发明人： David Doddrell ,  Stuart Crozier ,  Kurt Luescher ,  Wolfgang Roffman

    IPC分类号： G01V3/00

    CPC分类号： G01R33/34046

    摘要： A radio frequency (RF) coil array is used in resonance imaging and/or analysis of a subject located within a cylindrical space in which a magnetic field is operatively applied in an axial direction (z). The coil array comprises a plurality of coil elements (10, 11, 12, 13) angled relative to each other about the axis of the cylindrical space, each coil element having a pair of main conductors extending generally parallel to the direction of the magnetic field and located on diametrically opposite sides of the cylindrical space, and a pair of connection conductors connected between respective ends of the main conductors. Each coil element has its maximum sensitivity near the centre of the cylindrical space, so that the subject under study is located in a region of maximum sensitivity.

    摘要翻译： 射频（RF）线圈阵列用于位于其中沿轴向方向（z）可操作地施加磁场的圆柱形空间内的被摄体的共振成像和/或分析。 线圈阵列包括围绕圆柱形空间的轴线相对于彼此成角度的多个线圈元件（10,11,12,13），每个线圈元件具有大致平行于磁场方向延伸的一对主导体 并且位于圆柱形空间的径向相对侧上，并且连接在主导体的各个端部之间的一对连接导体。 每个线圈元件在圆柱形空间的中心附近具有最大灵敏度，使得被研究对象位于最大灵敏度的区域。

    Superconducting magnets
    7.
    发明授权
    Superconducting magnets 有权
    超导磁体

    公开(公告)号：US6084497A

    公开(公告)日：2000-07-04

    申请号：US129572

    申请日：1998-08-05

    申请人： Stuart Crozier ,  David Michael Doddrell

    发明人： Stuart Crozier ,  David Michael Doddrell

    IPC分类号： G01R33/3815 ,  H01F5/00

    CPC分类号： G01R33/3815

    摘要： A compact magnet is disclosed for high field, superconducting magnets for use in magnetic resonance spectroscopy. The magnet has at least a first and a second group of coils with the or each coil in the first group having wound to provide a negative current density with respect to the other coils. The first group acts to enable the overall length of the magnet to be reduced while maintaining a homogenous field over a central region of the magnet.

    摘要翻译： 公开了用于磁共振光谱的高场超导磁体的小型磁体。 磁体具有至少第一组和第二组线圈，其中第一组中的线圈或每个线圈具有绕组，以提供相对于其它线圈的负电流密度。 第一组起作用以使磁体的整个长度减小，同时保持在磁体的中心区域上的均匀场。

    Coil decoupling
    8.
    发明授权
    Coil decoupling 有权
    线圈去耦

    公开(公告)号：US08390287B2

    公开(公告)日：2013-03-05

    申请号：US12593237

    申请日：2008-03-26

    申请人： Stuart Crozier ,  Bing Keong Li ,  Ewald Weber

    发明人： Stuart Crozier ,  Bing Keong Li ,  Ewald Weber

    IPC分类号： G01V3/00

    CPC分类号： G01R33/34046 ,  A61B5/055 ,  G01R33/34076 ,  G01R33/365 ,  G01R33/5611

    摘要： A Magnetic Resonance Imaging (MRI) phased array head coil (10) comprises an array of coils (1, 2, 3, 4) a decoupling circuit (7) and a decoupling base (14). Counter wound inductors from adjoining coils (1, 2, 3, 4) in the decoupling circuit (7) are interlaced to achieve mutual decoupling between adjoining coils. Each separate coil (1, 2, 3, 4) includes a pair of spaced parallel main conductors (12) located on opposite sides of a cylindrical space (5) enclosed by the coils (1, 2, 3, 4). The decoupling base (14) comprises two meandering conductor bases (8, 9) which are interlaced. Orthogonal main conductors (12) of the coil (1, 2, 3, 4) share a common conductor base (8, 9). The multiple crossings of the paths of the conductor bases (8, 9) reduces mutual coupling effects.

    摘要翻译： 磁共振成像（MRI）相控阵列头线圈（10）包括线圈（1,2,3,4）阵列，去耦电路（7）和去耦基座（14）。 在去耦电路（7）中来自相邻线圈（1,2,3,4）的反绕绕电感器交织以实现相邻线圈之间的相互去耦。 每个分离的线圈（1,2,3,4）包括位于由线圈（1,2,3,4）包围的圆柱形空间（5）的相对侧上的一对隔开的平行主导体（12）。 去耦基座（14）包括两个交织的曲折导体基座（8,9）。 线圈（1,2,3,4）的正交主导体（12）共用公共导体基座（8,9）。 导体基座（8,9）的路径的多个交叉点减少了相互耦合效应。

    MAGNETS FOR USE IN MAGNETIC RESONANCE IMAGING
    9.
    发明申请
    MAGNETS FOR USE IN MAGNETIC RESONANCE IMAGING 有权
    用于磁共振成像的磁铁

    公开(公告)号：US20100079144A1

    公开(公告)日：2010-04-01

    申请号：US12447070

    申请日：2007-10-26

    申请人： Stuart Crozier ,  Huawei Zhao ,  Feng Liu

    发明人： Stuart Crozier ,  Huawei Zhao ,  Feng Liu

    IPC分类号： G01R33/24

    CPC分类号： G01R33/3815 ,  G01R33/421

    摘要： A magnetic resonance system uses a shielded superconducting magnet to produce a dsv useful for specialist imaging in an overall short magnet system at field strengths 1.5 Tesla and above. The magnet includes at least a first central coil C1, which has a length of at least 25% of the overall length of the magnet, and is used in concert with a series of symmetric primary coils, at least one set of which carry current in a direction opposite to that of the central coil. Force balancing is advantageously used in the design of the coils. The primary coils are shielded by at least one shielding coil, which carries current in a direction opposite to the majority of the primary coils. The magnet resonance system can be used for orthopedic imaging.

    摘要翻译： 磁共振系统使用屏蔽超导磁体产生一个dsv，用于整个短磁体系统中的专家成像，场强为1.5特斯拉及以上。 该磁体包括至少一个第一中心线圈C1，该中心线圈C1的长度至少为磁铁整体长度的25％，并与一系列对称的初级线圈一致使用，至少一组载体电流 与中心线圈相反的方向。 力平衡有利地用于线圈的设计中。 初级线圈由至少一个屏蔽线圈屏蔽，该屏蔽线圈沿与大部分初级线圈相反的方向承载电流。 磁共振系统可用于矫形成像。

    Coil array for magnetic resonance imaging
    10.
    发明授权
    Coil array for magnetic resonance imaging 失效
    用于磁共振成像的线圈阵列

    公开(公告)号：US07446528B2

    公开(公告)日：2008-11-04

    申请号：US10525932

    申请日：2003-08-29

    申请人： David Michael Doddrell ,  Stuart Crozier ,  Kurt Luescher ,  Wolfgang Udo Roffman

    发明人： David Michael Doddrell ,  Stuart Crozier ,  Kurt Luescher ,  Wolfgang Udo Roffman

    IPC分类号： G01V3/00 ,  A61B5/055

    CPC分类号： G01R33/34046

    摘要： A radio frequency (RF) coil array is used in resonance imaging and/or analysis of a subject located within a cylindrical space in which a magnetic field is operatively applied in an axial direction (z). The coil array comprises a plurality of coil elements (10, 11, 12, 13) angled relative to each other about the axis of the cylindrical space, each coil element having a pair of main conductors extending generally parallel to the direction of the magnetic field and located on diametrically opposite sides of the cylindrical space, and a pair of connection conductors connected between respective ends of the main conductors. Each coil element has its maximum sensitivity near the centre of the cylindrical space, so that the subject under study is located in a region of maximum sensitivity.

    摘要翻译： 射频（RF）线圈阵列用于位于其中沿轴向方向（z）可操作地施加磁场的圆柱形空间内的被摄体的共振成像和/或分析。 线圈阵列包括围绕圆柱形空间的轴线相对于彼此成角度的多个线圈元件（10,11,12,13），每个线圈元件具有大致平行于磁场方向延伸的一对主导体 并且位于圆柱形空间的径向相对侧上，并且连接在主导体的各个端部之间的一对连接导体。 每个线圈元件在圆柱形空间的中心附近具有最大灵敏度，使得被研究对象位于最大灵敏度的区域。