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    Reconfigurable MRI-Guided Surgical Apparatus
    1.
    发明申请
    Reconfigurable MRI-Guided Surgical Apparatus 有权
    可重构MRI引导手术器械

    公开(公告)号：US20140128723A1

    公开(公告)日：2014-05-08

    申请号：US13670224

    申请日：2012-11-06

    申请人： Xiaoyu Yang ,  Tsinghua Zheng ,  Shinya Handa

    发明人： Xiaoyu Yang ,  Tsinghua Zheng ,  Shinya Handa

    IPC分类号： A61B5/055 ,  A61B10/02

    CPC分类号： A61B5/0555 ,  A61B5/0037 ,  A61B5/4312 ,  A61B10/0233 ,  A61B90/11 ,  A61B90/17 ,  A61B2090/374

    摘要： Apparatus associated with improved magnetic resonance imaging (MRI) guided needle biopsy procedures (e.g., breast needle biopsy) are described. One example apparatus includes a support structure configured to support a patient in a face-down prone position where a breast of the patient is positioned in a first free hanging pre-imaging position. The example apparatus includes an immobilization structure configured to reposition the breast into an immobilized position suitable for MRI and for medical instrument access. The immobilization structure may include a biopsy plate, a pressure plate, and MRI coils. The MRI coils are configured to be repositioned from a first position associated with the free hanging pre-imaging position to a second position associated with the immobilized position to facilitate improving the signal to noise ratio associated with signal received from the breast through the MRI coils. The biopsy plate is removable without removing either of the MRI coils.

    摘要翻译： 描述了与改进的磁共振成像（MRI）引导的针活检程序（例如，乳房针活检）相关的装置。 一个示例性装置包括支撑结构，其被配置为将患者的患者置于朝向下倾斜的位置，其中患者的乳房位于第一自由悬挂的预成像位置。 示例性装置包括固定结构，其被配置为将乳房重新定位成适合于MRI和用于医疗器械进入的固定位置。 固定结构可以包括活检板，压力板和MRI线圈。 MRI线圈被配置为从与自由悬挂的预成像位置相关联的第一位置重新定位到与固定位置相关联的第二位置，以便于改进与通过MRI线圈从乳房接收的信号相关联的信噪比。 活检板是可移除的，而不去除MRI线圈之一。

    IC tags/RFID tags for magnetic resonance imaging applications
    2.
    发明授权
    IC tags/RFID tags for magnetic resonance imaging applications 有权
    用于磁共振成像应用的IC标签/ RFID标签

    公开(公告)号：US07821402B2

    公开(公告)日：2010-10-26

    申请号：US11418471

    申请日：2006-05-05

    申请人： Xiaoyu Yang ,  Hiroyuki Fujita ,  Tsinghua Zheng

    发明人： Xiaoyu Yang ,  Hiroyuki Fujita ,  Tsinghua Zheng

    IPC分类号： G08B13/14

    CPC分类号： G06K19/073 ,  A61N1/08 ,  A61N1/086

    摘要： An RFID tag for use with an MRI machine has an integrated circuit and structure for protecting it from damage when exposed to an intense MRI RF transmitter field. The structure for protecting the integrated circuit may include a controllable low impedance device coupled across the integrated circuit, a controllable high impedance device coupled in series with the integrated circuit, and/or frequency selective RF filter.

    摘要翻译： 用于MRI机器的RFID标签具有集成电路和结构，用于在暴露于强烈的MRI RF发射器场时防止其损坏。 用于保护集成电路的结构可以包括跨集成电路耦合的可控低阻抗器件，与集成电路串联耦合的可控高阻抗器件和/或频率选择性RF滤波器。

    Reconfigurable MRI-guided surgical apparatus
    5.
    发明授权
    Reconfigurable MRI-guided surgical apparatus 有权
    可重构MRI引导手术器械

    公开(公告)号：US09014784B2

    公开(公告)日：2015-04-21

    申请号：US13670224

    申请日：2012-11-06

    申请人： Xiaoyu Yang ,  Tsinghua Zheng ,  Shinya Handa

    发明人： Xiaoyu Yang ,  Tsinghua Zheng ,  Shinya Handa

    IPC分类号： A61B5/05 ,  A61B5/055 ,  A61B10/02 ,  A61B5/00 ,  A61B19/00

    CPC分类号： A61B5/0555 ,  A61B5/0037 ,  A61B5/4312 ,  A61B10/0233 ,  A61B90/11 ,  A61B90/17 ,  A61B2090/374

    摘要： Apparatus associated with improved magnetic resonance imaging (MRI) guided needle biopsy procedures (e.g., breast needle biopsy) are described. One example apparatus includes a support structure configured to support a patient in a face-down prone position where a breast of the patient is positioned in a first free hanging pre-imaging position. The example apparatus includes an immobilization structure configured to reposition the breast into an immobilized position suitable for MRI and for medical instrument access. The immobilization structure may include a biopsy plate, a pressure plate, and MRI coils. The MRI coils are configured to be repositioned from a first position associated with the free hanging pre-imaging position to a second position associated with the immobilized position to facilitate improving the signal to noise ratio associated with signal received from the breast through the MRI coils. The biopsy plate is removable without removing either of the MRI coils.

    摘要翻译： 描述了与改进的磁共振成像（MRI）引导的针活检程序（例如，乳房针活检）相关的装置。 一个示例性装置包括支撑结构，其被配置为将患者的患者置于朝向下倾斜的位置，其中患者的乳房位于第一自由悬挂的预成像位置。 示例性装置包括固定结构，其被配置为将乳房重新定位成适合于MRI和用于医疗器械进入的固定位置。 固定结构可以包括活检板，压力板和MRI线圈。 MRI线圈被配置为从与自由悬挂的预成像位置相关联的第一位置重新定位到与固定位置相关联的第二位置，以便于改进与通过MRI线圈从乳房接收的信号相关联的信噪比。 活检板是可移除的，而不去除MRI线圈之一。

    IC tags/RFID tags for magnetic resonance imaging applications
    6.
    发明申请
    IC tags/RFID tags for magnetic resonance imaging applications 有权
    用于磁共振成像应用的IC标签/ RFID标签

    公开(公告)号：US20070257800A1

    公开(公告)日：2007-11-08

    申请号：US11418471

    申请日：2006-05-05

    申请人： Xiaoyu Yang ,  Hiroyuki Fujita ,  Tsinghua Zheng

    发明人： Xiaoyu Yang ,  Hiroyuki Fujita ,  Tsinghua Zheng

    IPC分类号： G08B13/14 ,  H01Q1/52

    CPC分类号： G06K19/073 ,  A61N1/08 ,  A61N1/086

    摘要： An RFID tag for use with an MRI machine has an integrated circuit and structure for protecting it from damage when exposed to an intense MRI RF transmitter field. The structure for protecting the integrated circuit may include a controllable low impedance device coupled across the integrated circuit, a controllable high impedance device coupled in series with the integrated circuit, and/or frequency selective RF filter.

    摘要翻译： 用于MRI机器的RFID标签具有集成电路和结构，用于在暴露于强烈的MRI RF发射器场时防止其损坏。 用于保护集成电路的结构可以包括跨集成电路耦合的可控低阻抗器件，与集成电路串联耦合的可控高阻抗器件和/或频率选择性RF滤波器。

    Active decoupling of MRI RF transmit coils
    8.
    发明申请
    Active decoupling of MRI RF transmit coils 有权
    MRI射频发射线圈的主动去耦

    公开(公告)号：US20070273377A1

    公开(公告)日：2007-11-29

    申请号：US11418456

    申请日：2006-05-05

    申请人： Xiaoyu Yang ,  Hiroyuki Fujita ,  Tsinghua Zheng

    发明人： Xiaoyu Yang ,  Hiroyuki Fujita ,  Tsinghua Zheng

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3415 ,  G01R33/365

    摘要： An MRI RF transmit system uses a plurality of RF transmit coils, each being driven with separately controllable RF magnitude and phase. The magnitude and phase of each coil drive are separately and independently controlled so that the RF transmit coils act as if they are decoupled from each other. The controlled magnitude and phase values may be based on empirically derived information relating to self and mutual coupling of RF transmit coils.

    摘要翻译： MRI RF发射系统使用多个RF发射线圈，每个射频发射线圈分别由可控的RF幅度和相位驱动。 每个线圈驱动器的幅度和相位被单独和独立地控制，使得RF发射线圈的作用就好像它们彼此解耦一样。 受控幅度和相位值可以基于与RF发射线圈的自耦合和相互耦合有关的经验导出的信息。