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    Ferromagnetic frame magnet with superconducting coils
    1.
    发明申请
    Ferromagnetic frame magnet with superconducting coils 有权
    铁磁框架磁体与超导线圈

    公开(公告)号：US20080036463A1

    公开(公告)日：2008-02-14

    申请号：US11504246

    申请日：2006-08-14

    申请人： Hank Hsieh ,  Gordon Danby ,  Raymond Damadian ,  John Jackson ,  Hugh Wahl ,  Cristian Balica

    发明人： Hank Hsieh ,  Gordon Danby ,  Raymond Damadian ,  John Jackson ,  Hugh Wahl ,  Cristian Balica

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3815 ,  G01R33/3806 ,  Y10T29/4902

    摘要： A magnetic resonance imaging magnet includes a ferromagnetic frame. A pair of generally toroidal superconducting coil units overlie interfaces of side walls incorporated in the frame. Each coil unit may include a vessel having hollow support extensions extending into recesses in the side walls. The coil units may further include elongated, low-thermal conductance supports disposed within the support extensions. The frame may include pole stems projecting inwardly from the side walls, and the coils may be disposed in close proximity to the pole stems. Cryocoolers may be mounted to the frame so that the cryocoolers are substantially mechanically isolated from the coils of the coil units, but are in thermal communication therewith. The cryocooler mountings may be arranged for convenient servicing and installation of the cryocoolers.

    摘要翻译： 磁共振成像磁体包括铁磁框架。 一对通常为环形的超导线圈单元覆盖在框架中的侧壁的界面上。 每个线圈单元可以包括具有延伸到侧壁中的凹部中的中空支撑延伸部的容器。 线圈单元还可以包括设置在支撑延伸部内的细长的低热传导支撑。 框架可以包括从侧壁向内突出的杆杆，并且线圈可以设置在极杆附近。 低温冷却器可以安装到框架上，使得低温冷却器基本上与线圈单元的线圈机械隔离，但与其进行热连通。 低温冷却器安装件可以布置成方便维修和安装低温冷却器。

    MRI test fixture
    4.
    发明授权
    MRI test fixture 有权
    MRI测试夹具

    公开(公告)号：US07834630B2

    公开(公告)日：2010-11-16

    申请号：US12316102

    申请日：2008-12-09

    申请人： Raymond V. Damadian ,  Hugh Wahl ,  Rein Aspelund ,  James Kelly

    发明人： Raymond V. Damadian ,  Hugh Wahl ,  Rein Aspelund ,  James Kelly

    IPC分类号： G01V3/00

    CPC分类号： G01R33/58

    摘要： In one example, a magnetic resonance imaging (“MRI”) system comprises a magnetic resonance imaging assembly defining a gap region, a transmitting coil proximate the gap region, and at least one test coil separate from the transmitting coil. The at least one coil is mechanically coupled to the assembly during imaging and the at least one test coil is selectively electrically coupled to the assembly to collect test data. The at least one coil may be coupled to a test fixture coupled to the assembly. The test fixture may be deployable from a first position to a second position for collection of test data. The at least one coil may comprise a first test coil and a second test coil. Methods are also disclosed.

    摘要翻译： 在一个示例中，磁共振成像（“MRI”）系统包括定义间隙区域的磁共振成像组件，靠近间隙区域的发射线圈以及与发射线圈分离的至少一个测试线圈。 所述至少一个线圈在成像期间机械耦合到所述组件，并且所述至少一个测试线圈选择性地电耦合到所述组件以收集测试数据。 所述至少一个线圈可以联接到耦合到所述组件的测试固定件。 测试夹具可以从第一位置展开到第二位置，用于收集测试数据。 所述至少一个线圈可以包括第一测试线圈和第二测试线圈。 还公开了方法。

    MRI test fixture
    5.
    发明申请
    MRI test fixture 有权
    MRI测试夹具

    公开(公告)号：US20090167305A1

    公开(公告)日：2009-07-02

    申请号：US12316102

    申请日：2008-12-09

    申请人： Raymond V. Damadian ,  Hugh Wahl ,  Rein Aspelund ,  James Kelly

    发明人： Raymond V. Damadian ,  Hugh Wahl ,  Rein Aspelund ,  James Kelly

    IPC分类号： G01R33/30 ,  G01R33/32

    CPC分类号： G01R33/58

    摘要： In one example, a magnetic resonance imaging (“MRI”) system comprises a magnetic resonance imaging assembly defining a gap region, a transmitting coil proximate the gap region, and at least one test coil separate from the transmitting coil. The at least one coil is mechanically coupled to the assembly during imaging and the at least one test coil is selectively electrically coupled to the assembly to collect test data. The at least one coil may be coupled to a test fixture coupled to the assembly. The test fixture may be deployable from a first position to a second position for collection of test data. The at least one coil may comprise a first test coil and a second test coil. Methods are also disclosed.

    摘要翻译： 在一个示例中，磁共振成像（“MRI”）系统包括定义间隙区域的磁共振成像组件，靠近间隙区域的发射线圈以及与发射线圈分离的至少一个测试线圈。 所述至少一个线圈在成像期间机械耦合到所述组件，并且所述至少一个测试线圈选择性地电耦合到所述组件以收集测试数据。 所述至少一个线圈可以联接到耦合到所述组件的测试固定件。 测试夹具可以从第一位置展开到第二位置，用于收集测试数据。 所述至少一个线圈可以包括第一测试线圈和第二测试线圈。 还公开了方法。

    MRI test fixture
    6.
    发明授权
    MRI test fixture 有权
    MRI测试夹具

    公开(公告)号：US07504827B1

    公开(公告)日：2009-03-17

    申请号：US09992733

    申请日：2001-11-14

    申请人： Raymond V. Damadian ,  Hugh Wahl ,  Rein Aspelund ,  James Kelly

    发明人： Raymond V. Damadian ,  Hugh Wahl ,  Rein Aspelund ,  James Kelly

    IPC分类号： G01V3/00

    CPC分类号： G01R33/58

    摘要： A test fixture for testing and monitoring electromagnetic characteristics of a magnetic resonance imaging (“MRI”) system preferably comprises a body portion having a first longitudinal axis and a first coil supported by the body portion. A longitudinal member is preferably connected to the body portion. A second coil is supported by the longitudinal member. The longitudinal member has a second longitudinal axis transverse to the first longitudinal axis. A container for containing a test substance is supported by the longitudinal member within the second coil. The second coil is preferably a transceiver and the test substance is a material capable of emitting a magnetic resonance signal. The longitudinal member is preferably pivotally connected to the body portion and the body portion is preferably telescoping so that the test fixture may be stored in a compact position. Preferably, the test fixture is stored in the gap region in an MRI system. For example, the fixture may be stored in a chamber in a transmitting coil plate attached to a pole of an open MRI system.

    摘要翻译： 用于测试和监测磁共振成像（“MRI”）系统的电磁特性的测试夹具优选地包括具有第一纵向轴线的主体部分和由主体部分支撑的第一线圈。 纵向构件优选地连接到主体部分。 第二线圈由纵向构件支撑。 纵向构件具有横向于第一纵向轴线的第二纵向轴线。 用于容纳测试物质的容器由第二线圈内的纵向构件支撑。 第二线圈优选地是收发器，并且测试物质是能够发射磁共振信号的材料。 纵向构件优选地枢转地连接到主体部分，并且主体部分优选地是伸缩的，使得测试夹具可以被存储在紧凑的位置。 优选地，测试夹具存储在MRI系统的间隙区域中。 例如，固定装置可以存储在附接到开放MRI系统的极点的发射线圈板中的腔室中。