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13 条记录 (耗时 0.027 秒)

    Multi-channel low loss MRI coil
    2.
    发明授权
    Multi-channel low loss MRI coil 有权
    多通道低损耗MRI线圈

    公开(公告)号：US07498813B2

    公开(公告)日：2009-03-03

    申请号：US11677655

    申请日：2007-02-22

    申请人： Randy Otto John Giaquinto ,  Charles Lucien Dumoulin ,  Christopher Judson Hardy ,  Harvey Ellis Cline

    发明人： Randy Otto John Giaquinto ,  Charles Lucien Dumoulin ,  Christopher Judson Hardy ,  Harvey Ellis Cline

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3415 ,  G01R33/34007 ,  G01R33/365

    摘要： A coil array for use in magnetic resonance imaging (MRI) is provided and comprises a plurality of low loss coil elements and at least one non-conducting substrate adapted to position the plurality of low loss coil elements in a fixed position thereon. Further, a coil array assembly for use in a magnetic resonance imaging (MRI) scanner is provided. The coil array assembly comprises a pair of coil arrays, wherein each coil array comprises: a plurality of low loss coil elements and at least one non-conducting substrate adapted to position the plurality of low loss coil elements in a fixed position thereon. Further, the pair of coil arrays are coupled to the MRI scanner for receiving imaging signals in a region of interest excited within the pair of coil arrays. Further, the coil array is adapted for use in breast imaging.

    摘要翻译： 提供了用于磁共振成像（MRI）的线圈阵列，并且包括多个低损耗线圈元件和适于将多个低损耗线圈元件定位在其上的固定位置的至少一个非导电衬底。 此外，提供了一种用于磁共振成像（MRI）扫描仪的线圈阵列组件。 线圈阵列组件包括一对线圈阵列，其中每个线圈阵列包括：多个低损耗线圈元件和适于将多个低损耗线圈元件定位在其上的固定位置的至少一个非导电衬底。 此外，该对线圈阵列耦合到MRI扫描器，用于在该对线圈阵列内激发的感兴趣区域中接收成像信号。 此外，线圈阵列适用于乳房成像。

    Flexible lightweight attached phased-array (FLAP) receive coils
    4.
    发明授权
    Flexible lightweight attached phased-array (FLAP) receive coils 失效
    灵活的轻便连接相控阵（FLAP）接收线圈

    公开(公告)号：US6084411A

    公开(公告)日：2000-07-04

    申请号：US234054

    申请日：1999-01-19

    申请人： Randy Otto John Giaquinto ,  Charles Lucian Dumoulin

    发明人： Randy Otto John Giaquinto ,  Charles Lucian Dumoulin

    IPC分类号： G01R33/34 ,  G01R33/3415 ,  G01R33/36 ,  G01V3/00

    CPC分类号： G01R33/34084 ,  G01R33/3415 ,  G01R33/365

    摘要： One or more flexible magnetic Resonance (MR) receive coils are constructed of a flexible material and connected to a flexible base to produce a module. Each module has the coils overlapping by a predetermined amount to minimize coupling between the coils. The modules may be connected by attachment means placed at predefined locations to cause overlap of adjacent coils such that the coupling is minimized. Balanced-unbalanced ("baluns") may be used to couple each receive coil to its lead cable connecting it to the MR imaging electronics. The baluns effectively isolate the coils from the cables and each other to optimize signal-to-noise ratio of the received signal.

    摘要翻译： 一个或多个柔性磁共振（MR）接收线圈由柔性材料构成并连接到柔性基座以产生模块。 每个模块具有重叠预定量的线圈以最小化线圈之间的耦合。 模块可以通过放置在预定位置处的附接装置连接以引起相邻线圈的重叠，使得耦合被最小化。 平衡不平衡（“巴伦”）可用于将每个接收线圈与其连接到MR成像电子设备的引线连接。 不平衡变换器有效地将线圈与电缆隔离开来并优化接收信号的信噪比。

    Patient electrical isolation system
    6.
    发明授权
    Patient electrical isolation system 失效
    病人电气隔离系统

    公开(公告)号：US5807253A

    公开(公告)日：1998-09-15

    申请号：US944631

    申请日：1997-10-06

    申请人： Charles Lucian Dumoulin ,  Kenneth William Rohling ,  Ronald Dean Watkins ,  Randy Otto John Giaquinto

    发明人： Charles Lucian Dumoulin ,  Kenneth William Rohling ,  Ronald Dean Watkins ,  Randy Otto John Giaquinto

    IPC分类号： G01B7/00 ,  A61B5/055 ,  A61B5/06 ,  A61M25/00 ,  A61B1/00

    CPC分类号： A61B5/06 ,  A61B5/055 ,  Y10S128/908

    摘要： A patient isolation device is used as a safety device to provide electrical insulation between medical electronic equipment and portions of the equipment which come in contact with the patient. In one implementation of the patient isolation device, an RF coil is incorporated in a catheter connected to medical electronic equipment which tracks the position of the catheter. Typically, there is also medical imaging electronics to provide internal images of the subject along with an indication of the location of the catheter. Typically, the signal from the RF coil is provided to a preamplifier to amplify the signal. The isolation device is placed between the RF coil and the preamplifier such that MR response signals may pass through to the preamplifiers but in the event of a short or electrical malfunction the line voltage will not pass backward into the RF coil causing damage to the patient.

    摘要翻译： 患者隔离装置用作安全装置，以在医疗电子设备与与患者接触的设备的部分之间提供电绝缘。 在患者隔离装置的一个实施方式中，将RF线圈并入连接到跟踪导管位置的医疗电子设备的导管中。 通常，还提供医疗成像电子装置以提供对象的内部图像以及导管位置的指示。 通常，来自RF线圈的信号被提供给前置放大器以放大信号。 隔离装置被放置在RF线圈和前置放大器之间，使得MR响应信号可以通过前置放大器，但是在短路或电气故障的情况下，线路电压将不会向后进入RF线圈，从而导致患者的损坏。

    TILED RECEIVER COIL ARRAY WITH IMPROVED SPATIAL COVERAGE
    7.
    发明申请
    TILED RECEIVER COIL ARRAY WITH IMPROVED SPATIAL COVERAGE 有权
    倾斜接收机线圈阵列改进空间覆盖

    公开(公告)号：US20090273347A1

    公开(公告)日：2009-11-05

    申请号：US12112065

    申请日：2008-04-30

    申请人： Christopher Judson Hardy ,  Kenneth W. Rohling ,  Randy Otto John Giaquinto

    发明人： Christopher Judson Hardy ,  Kenneth W. Rohling ,  Randy Otto John Giaquinto

    IPC分类号： G01R33/32

    CPC分类号： G01R33/3415 ,  G01R33/365

    摘要： A phased array for a magnetic resonance (MR) imaging apparatus is disclosed that includes a plurality of receiver coils arranged to form a staggered hexagonal coil array, with the staggered hexagonal coil array being rectangular in shape. Included in the plurality of receiver coils are a plurality of standard coils and a plurality of filler coils differing in shape from the standard coils. The shape of the filler coils is such that no more than negligible mutual inductance between the filler coils and all adjacent overlapping standard coils is present.

    摘要翻译： 公开了一种用于磁共振（MR）成像设备的相控阵列，其包括布置成形成交错六边形线圈阵列的多个接收器线圈，其中交错的六边形线圈阵列的形状为矩形。 包括在多个接收器线圈中的是多个标准线圈和多个与标准线圈不同形状的填充线圈。 填充线圈的形状使得填充线圈和所有相邻的重叠标准线圈之间的互感不可忽略。

    Tiled receiver coil array with improved spatial coverage
    8.
    发明授权
    Tiled receiver coil array with improved spatial coverage 有权
    平铺式接收器线圈阵列具有改进的空间覆盖

    公开(公告)号：US07612564B1

    公开(公告)日：2009-11-03

    申请号：US12112065

    申请日：2008-04-30

    申请人： Christopher Judson Hardy ,  Kenneth W. Rohling ,  Randy Otto John Giaquinto

    发明人： Christopher Judson Hardy ,  Kenneth W. Rohling ,  Randy Otto John Giaquinto

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3415 ,  G01R33/365

    摘要： A phased array for a magnetic resonance (MR) imaging apparatus is disclosed that includes a plurality of receiver coils arranged to form a staggered hexagonal coil array, with the staggered hexagonal coil array being rectangular in shape. Included in the plurality of receiver coils are a plurality of standard coils and a plurality of filler coils differing in shape from the standard coils. The shape of the filler coils is such that no more than negligible mutual inductance between the filler coils and all adjacent overlapping standard coils is present.

    摘要翻译： 公开了一种用于磁共振（MR）成像设备的相控阵列，其包括布置成形成交错六边形线圈阵列的多个接收器线圈，其中交错的六边形线圈阵列的形状为矩形。 包括在多个接收器线圈中的是多个标准线圈和多个与标准线圈不同形状的填充线圈。 填充线圈的形状使得填充线圈和所有相邻的重叠标准线圈之间的互感不可忽略。

    RF coil for reduced electric field exposure for use in very high field magnetic resonance imaging
    9.
    发明授权
    RF coil for reduced electric field exposure for use in very high field magnetic resonance imaging 有权
    用于减小电场暴露的RF线圈，用于非常高的场磁共振成像

    公开(公告)号：US06538441B1

    公开(公告)日：2003-03-25

    申请号：US09682741

    申请日：2001-10-12

    申请人： Ronald Dean Watkins ,  John Frederick Schenck ,  Randy Otto John Giaquinto

    发明人： Ronald Dean Watkins ,  John Frederick Schenck ,  Randy Otto John Giaquinto

    IPC分类号： G01V300

    CPC分类号： G01R33/34046

    摘要： A radio frequency (RF) coil assembly for a very high field Magnetic Resonance Imaging (MRI) system is provided. The RF coil assembly comprises a plurality of conductors arranged cylindrically and disposed about a patient bore tube of the MRI system. Each of the conductors is configured for the RF coil assembly to resonate at substantially high frequencies. Further, the RF coil assembly comprises a plurality of capacitive elements disposed between and connecting respective ends of the conductors and further disposed in a spaced-apart relationship with the patient bore tube. The capacitive elements are for electrically interconnecting the plurality of conductors at the respective ends of the conductors.

    摘要翻译： 提供了用于非常高场磁共振成像（MRI）系统的射频（RF）线圈组件。 RF线圈组件包括多个导体，其布置成圆柱形并围绕MRI系统的患者孔管设置。 每个导体被配置为用于RF线圈组件以基本上高的频率谐振。 此外，RF线圈组件包括多个电容元件，其设置在导体的相应端之间并连接到导体的相应端部，并且还与患者孔管以间隔开的关系设置。 电容元件用于在导体的相应端部处电连接多个导体。