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    INDUCTIVELY POWERED ELECTRIC COMPONENT OF AN MRI APPARATUS
    2.
    发明公开
    INDUCTIVELY POWERED ELECTRIC COMPONENT OF AN MRI APPARATUS 审中-公开
    印度尼西亚白俄罗斯白俄罗斯白俄罗斯MRT-VORRICHTUNG

    公开(公告)号：EP2291672A2

    公开(公告)日：2011-03-09

    申请号：EP09766264.7

    申请日：2009-06-15

    申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： WAFFENSCHMIDT, Eberhard ,  HILGERS, Achim ,  DE VRIES, Lambertus ,  WEISSLER, Bjoern ,  REEFMAN, Derk ,  VAN HELVOORT, Marinus, J., A., M. ,  BLANKEN, Pieter, G.

    IPC分类号： G01R33/36

    摘要： The invention relates to a nuclear magnetic resonance imaging apparatus comprising: a main magnet (122) adapted for generating a main magnetic field; at least one radio frequency receiver coil unit (144) for acquiring magnetic resonance signals in a receiver coil radio frequency band (202) from an examined object (124); means (140) for inductively (wirelessly) supplying electric power to an electric component of the apparatus, wherein the electric component is adapted to be powered by inductively supplied electric power, wherein the power transfer frequency (200) and the higher-harmonics (206) of the power transfer frequency (200) for inductively supplying the electric power are located outside the receiver coil radio frequency band (202).

    摘要翻译： 本发明涉及一种核磁共振成像装置，包括：适于产生主磁场的主磁体（122）; 至少一个射频接收器线圈单元（144），用于从被检查物体（124）获取接收器线圈无线电频带（202）中的磁共振信号; 用于感应地（无线地）向所述设备的电气部件供电的装置（140），其中所述电气部件适于由感应供应的电力供电，其中所述功率传递频率（200）和所述高次谐波（206 ）用于感应供电的功率传递频率（200）位于接收线圈无线电频带（202）的外侧。

    SINGLE COAXIAL INTERFACE FOR MAGNETIC RESONANCE (MR) COILS
    4.
    发明公开
    SINGLE COAXIAL INTERFACE FOR MAGNETIC RESONANCE (MR) COILS 审中-公开
    磁共振（MR）线圈的单一同轴界面

    公开(公告)号：EP2989478A1

    公开(公告)日：2016-03-02

    申请号：EP14721524.8

    申请日：2014-04-08

    申请人： Koninklijke Philips N.V.

    发明人： REYKOWSKI, Arne ,  HOUSEN, Rodney ,  ROEVEN, Henricus Gerardus ,  DE VRIES, Lambertus

    IPC分类号： G01R33/36 ,  G01R33/3415

    CPC分类号： G01R33/3628 ,  G01R33/3415 ,  G01R33/3621 ,  G01R33/3657 ,  G01R33/58

    摘要： A magnetic resonance (MR) coil array (26, 28) connected by way of a single transmission line (46, 48) is provided. The MR coil array (26, 28) includes a coil element (34) and a corresponding coil element circuit (32). The coil element circuit (32) includes at least one active component (40) powered by a power signal carried on the coaxial transmission line (46, 48). The voltage of the power signal varies between first and second direct current (DC) voltages of the same polarity. The coil element circuit (32) further includes a tune/detune circuit (42) connected to the coaxial transmission line (46, 48). The tune/detune circuit (42) tunes or detunes the coil element (34) based on the first and second DC voltages. An MR system (10) using the MR coil array (26, 28) and a method (10) for tuning or detuning the MR coil (26, 28) are also provided. Accordingly, a single coaxial cable between the MR system and the coil element is sufficient for conveying MR data, a power signal for the preamplifier and a detuning signal. Moreover, the preamplifier can be powered irrespective of the coil element being in the tuned or in the detuned state.

    摘要翻译： 提供了通过单个传输线（46,48）连接的磁共振（MR）线圈阵列（26,28）。 MR线圈阵列（26,28）包括线圈元件（34）和相应的线圈元件电路（32）。 线圈元件电路（32）包括由承载在同轴传输线（46,48）上的功率信号供电的至少一个有源部件（40）。 功率信号的电压在相同极性的第一和第二直流（DC）电压之间变化。 线圈元件电路（32）还包括连接到同轴传输线（46,48）的调谐/去调谐电路（42）。 调谐/去调谐电路（42）基于第一和第二DC电压调谐或解调线圈元件（34）。 还提供了使用MR线圈阵列（26,28）的MR系统（10）和用于调谐或解调MR线圈（26,28）的方法（10）。 因此，MR系统和线圈元件之间的单根同轴电缆足以传送MR数据，前置放大器的功率信号和失谐信号。 此外，前置放大器可以被供电，而不管线圈元件处于调谐状态还是处于失谐状态。