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    COIL DECOUPLING IN MAGNETIC RESONANCE IMAGING
    32.
    发明申请
    COIL DECOUPLING IN MAGNETIC RESONANCE IMAGING 审中-公开
    磁共振成像中的线圈解耦

    公开(公告)号：WO2006137946A2

    公开(公告)日：2006-12-28

    申请号：PCT/US2005042464

    申请日：2005-11-22

    Applicant: SUPERTRON TECHNOLOGIES INC

    Inventor： DEVRIES JON T ,  GAO ERZHEN ,  VOIHL INGMAR ,  SCOTT GRIEG ,  VIJ KAMAL ,  FLICEK JOSEPH R

    CPC classification number: G01R33/34053 ,  G01R33/3403 ,  G01R33/34061 ,  G01R33/34076 ,  G01R33/3415 ,  G01R33/365

    Abstract: A radio frequency coil array (50) includes at least first (50 1 ) and second (50 2 ) receive coils. A flux pipe (52) includes electrically connected first (252 1 ) and second (252 2 ) loop coils. The first (252 1 ) loop coils are coupled to the respective first and second receive coils. The flux pipe (52) reduces mutual inductance between the first (50 1 ) and second (50 2 ) receive coils.

    Abstract translation: 无线电频率线圈阵列（50）至少包括第一（50个）1和第二个（50个2）接收线圈。 磁通管（52）包括电连接的第一（252 <1> 1）个和第二个（252-2个）环形线圈。 第一（252 ）环线圈耦合到相应的第一和第二接收线圈。 磁通管（52）减少了第一（50 <1）个和第二个（50个2）接收线圈之间的互感。

    ORTHOGONAL COIL FOR MAGNETIC RESONANCE IMAGING
    33.
    发明申请
    ORTHOGONAL COIL FOR MAGNETIC RESONANCE IMAGING 审中-公开
    用于磁共振成像的正交线圈

    公开(公告)号：WO2006090293A2

    公开(公告)日：2006-08-31

    申请号：PCT/IB2006050041

    申请日：2006-01-05

    Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS CORP ,  LEUSSLER CHRISTOPH

    Inventor： LEUSSLER CHRISTOPH

    CPC classification number: G01R33/34046 ,  G01R33/34053

    Abstract: A radio frequency coil assembly (32) for magnetic resonance imaging includes a coil array portion (60, 60', 88) and a TEM coil portion (62, 62'). The coil array portion includes a plurality of decoupled coil loops (70, 70', 90). The TEM coil portion includes a plurality of rods (72, 72') coupled with a radio frequency screen (34, 34'). Each rod of the TEM coil portion is electromagnetically orthogonal to a corresponding coil loop of the coil array portion.

    Abstract translation: 用于磁共振成像的射频线圈组件（32）包括线圈阵列部分（60,60'，88）和TEM线圈部分（62,62'）。 线圈阵列部分包括多个解耦的线圈环（70,70'，90）。 TEM线圈部分包括与射频屏幕（34,34'）耦合的多个杆（72,72'）。 TEM线圈部分的每个杆与线圈阵列部分的相应线圈环电磁正交。

    NUCLEAR MAGNETIC RESONANCE METHOD AND APPARATUS
    38.
    发明申请
    NUCLEAR MAGNETIC RESONANCE METHOD AND APPARATUS 审中-公开
    核磁共振方法和装置

    公开(公告)号：WO99024821A2

    公开(公告)日：1999-05-20

    申请号：PCT/US1998/023708

    申请日：1998-11-05

    IPC: G01R33/34 ,  G01N24/00

    CPC classification number: G01R33/34053 ,  G01R33/34007 ,  G01R33/34023 ,  G01R33/34092

    Abstract: Net magnetic flux trapped in an NMR high temperature superconducting RF probe coil magnetically coupled with a main excitation DC magnetic field of an NMR device of which the probe is a part is reduced by moving the probe coil relative to the main magnetic field axis. There is a resulting interaction betweeen the moving probe coil and the main excitation DC magnetic field to induce a current in the probe coil. The induced current reduces the net magnetic flux trapped in the probe coil. The probe coil is moved so the induced current is an AC current having an envelope with decreasing amplitude as a function of time. An electromechanical drive, produced by a magnetic field or an electrostatic field or a piezoelectric transducer attached to a substrate carrying the probe coil, provides oscillatory movement of the probe coil.

    Abstract translation: 通过将探针线圈相对于主磁场轴移动而与探头成为一部分的NMR装置的主激励DC磁场磁耦合的NMR高温超导RF探针线圈中的净磁通减少。 在移动探针线圈和主激励DC磁场之间产生相互作用，以诱导探针线圈中的电流。 感应电流减小了探测线圈中捕获的净磁通量。 探针线圈被移动，因此感应电流是具有作为时间的函数的振幅降低的包络的交流电流。 通过磁场或静电场产生的机电驱动器或附着于承载探针线圈的基板的压电传感器提供探针线圈的振荡运动。

    THERMAL BUFFERING OF CROSS-COILS IN HIGH-POWER NMR DECOUPLING
    40.
    发明申请
    THERMAL BUFFERING OF CROSS-COILS IN HIGH-POWER NMR DECOUPLING 审中-公开
    在大功率NMR解耦中的交叉线圈的热缓冲

    公开(公告)号：WO1998030917A1

    公开(公告)日：1998-07-16

    申请号：PCT/US1997023645

    申请日：1997-12-19

    Applicant: DOTY SCIENTIFIC, INC. ,  DOTY, F., David ,  ENTZMINGER, George, Jr.

    Inventor： DOTY SCIENTIFIC, INC.

    IPC: G01R33/20

    CPC classification number: G01R33/34053 ,  G01R33/34007 ,  G01R33/34069 ,  G01R33/34092 ,  G01R33/3635

    Abstract: A transverse rf saddle coil (30) for use in NMR is affixed in intimate thermal contact on one surface of a ceramic coilform (23) of high thermal conductivity. The probe is mostly for use with solid samples at high fields where the axis of the coilform is not aligned with the main field. An orthogonal rf coil (1) is mounted in intimate thermal contact to the first saddle coil (30) via a ceramic spacer or coilform (2). The coilform is cooled by high-velocity gas flow and is also often associated with bearing exhaust gas from a high speed sample spinner. The two coils are tuned to different rf frequencies with circuits capable of supporting high rf currents. The rf coils (30, 1) may be magnetically compensated and expansion controlled, and passive geometric compensation of magnetic susceptibility effects from a sample spinner stator may also be incorporated. Novel coil mounting techniques, including metallurgical bonds to ceramics and capturing by dielectric clam-shells, are also disclosed.

    Abstract translation: 用于NMR的横向rf鞍形线圈（30）在高导热性的陶瓷线圈形（23）的一个表面上以紧密的热接触固定。 该探头主要用于高场的固体样品，其中线圈形的轴线与主场不对齐。 正交的rf线圈（1）通过陶瓷间隔件或线圈形（2）与第一鞍形线圈（30）以紧密的热接触方式安装。 线圈形式通过高速气流冷却，并且还经常与来自高速样品旋转器的轴承废气相关联。 两个线圈被调谐到具有能够支持高rf电流的电路的不同频率。 可以对磁共振线圈（30,1）进行磁补偿和扩展控制，并且还可以并入来自样品旋转定子的磁化率效应的被动几何补偿。 还公开了新型的线圈安装技术，包括对陶瓷的冶金结合和通过电介质蛤壳的捕获。

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