利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

176 条记录 (耗时 0.034 秒)

    SUPERCONDUCTING MAGNET SYSTEM FOR GENERATING HOMOGENEOUS MAGNETIC FIELD
    1.
    发明公开
    SUPERCONDUCTING MAGNET SYSTEM FOR GENERATING HOMOGENEOUS MAGNETIC FIELD 审中-公开

    公开(公告)号：US20240345190A1

    公开(公告)日：2024-10-17

    申请号：US18575087

    申请日：2022-06-01

    申请人： Oxford Instruments Nanotechnology Tools Limited

    发明人： Andrew Varney

    IPC分类号： G01R33/3815 ,  G01R33/34 ,  G01R33/3875

    CPC分类号： G01R33/3815 ,  G01R33/3403 ,  G01R33/34053 ,  G01R33/3875

    摘要： A magnet system is provided for generating a homogeneous magnetic field in a target region that finds benefit in the field of nuclear magnetic resonance (NMR), particularly NMR spectroscopy. The magnet system comprises a first magnet having a first solenoid formed from superconductor material and a set of one or more pairs of compensation coils, each said pair being disposed coaxially with the first solenoid and symmetrically positioned with an axial offset about the geometrical centre point so as to define an annular volume within the bore between the set of compensation coils. A first pair of compensation coils in the set is connected in electrical series with the first solenoid. A shim system is disposed within the annular volume and comprising one or more superconducting shim coils. The magnetic field in the target region has a homogeneity of less than 10 parts per million, wherein the target region is a 1 cm diameter spherical volume centred on the centre point.

    NMR detection module
    6.
    发明授权
    NMR detection module 有权
    NMR检测模块

    公开(公告)号：US09372247B2

    公开(公告)日：2016-06-21

    申请号：US13971903

    申请日：2013-08-21

    申请人： Kyoto University ,  JEOL Resonance Inc.

    发明人： Kiyonori Takegoshi ,  Takashi Mizuno

    IPC分类号： G01R33/34 ,  G01R33/31 ,  G01R33/30

    CPC分类号： G01R33/3403 ,  G01R33/307 ,  G01R33/31 ,  G01R33/34053

    摘要： An NMR (nuclear magnetic resonance) detection module (such as an NMR probe) mounted in a vacuum vessel permits a transmit/receive coil to be cooled efficiently and to be placed closer to a sample container. The NMR detection module includes a core module (detection module) (54) consisting of a refrigerant block (118) and a transmit/receive coil formed on the inner surface of a detection hole (130). A sleeve (cylindrical partition wall) (122) forming a part of the vacuum vessel is inserted in the detection hole (130). A sample tube (56) is inserted in the sleeve (122). The refrigerant block (118) is connected to a heat exchanger via a support member (82). Since it is not necessary to form a bobbin inside the transmit/receive coil, the distance between the coil and the sample can be set small. The coil is entirely surrounded by the refrigerant block.

    摘要翻译： 安装在真空容器中的NMR（核磁共振）检测模块（例如NMR探针）允许发射/接收线圈被有效地冷却并且被放置得更靠近样品容器。 NMR检测模块包括由制冷剂块（118）和形成在检测孔（130）的内​​表面上的发射/接收线圈组成的核心模块（检测模块）（54）。 形成真空容器的一部分的套筒（圆筒形分隔壁）122被插入到检测孔130中。 样品管（56）插入套筒（122）中。 制冷剂块（118）经由支撑构件（82）连接到热交换器。 由于不需要在发送/接收线圈内部形成线轴，所以可以将线圈和样本之间的距离设定得较小。 线圈完全被制冷剂块包围。

    Power electronics assembly for a magnetic resonance device
    7.
    发明授权
    Power electronics assembly for a magnetic resonance device 有权
    用于磁共振装置的电力电子组件

    公开(公告)号：US09151814B2

    公开(公告)日：2015-10-06

    申请号：US13189302

    申请日：2011-07-22

    申请人： Adam Albrecht ,  Horst Kröckel

    发明人： Adam Albrecht ,  Horst Kröckel

    IPC分类号： H05K7/20 ,  G01R33/36 ,  G01R33/34

    CPC分类号： G01R33/3614 ,  G01R33/3403 ,  H01L2224/48245 ,  H01L2224/73265 ,  H05K7/20927

    摘要： A power electronics assembly for a magnetic resonance device includes a housing and at least one printed circuit board (PCB) arranged in the housing with at least one power electronics component to be cooled. The PCB has an at least one millimeter thick backside layer that may be made of copper. The power electronics assembly also includes a stabilizing cooling plate configured as part of the housing and/or the housing includes at least one coolant channel open on at least one side, so that the PCB mounted on the cooling plate comes into direct contact with coolant guided in the coolant channel in an area of the power electronics components with the backside layer.

    摘要翻译： 用于磁共振装置的功率电子组件包括壳体和布置在壳体中的至少一个印刷电路板（PCB），具有要冷却的至少一个电力电子部件。 PCB具有可以由铜制成的至少一毫米厚的背面层。 电力电子组件还包括构造为壳体的一部分的稳定冷却板和/或壳体包括在至少一侧上敞开的至少一个冷却剂通道，使得安装在冷却板上的PCB与冷却剂引导直接接触 在具有背面层的电力电子部件的区域中的冷却剂通道中。

    Superconductor RF coil array
    9.
    发明授权
    Superconductor RF coil array 有权
    超导体RF线圈阵列

    公开(公告)号：US08723522B2

    公开(公告)日：2014-05-13

    申请号：US12887474

    申请日：2010-09-21

    申请人： Qiyuan Ma ,  Erzhen Gao

    发明人： Qiyuan Ma ,  Erzhen Gao

    IPC分类号： G01V3/00

    CPC分类号： G01R33/34023 ,  G01R33/34007 ,  G01R33/3403 ,  G01R33/3415

    摘要： A superconducting RF coil array which may be used in whole body MRI scanners and/or in dedicated MRI systems. Some embodiments provide a superconducting RF coil array for at least one of receiving signals from and transmitting signals to a sample during magnetic resonance analysis of the sample, the superconducting RF coil array comprising a thermally conductive member configured to be cryogenically cooled, and a plurality of coils elements comprising superconducting material, wherein each coil element is thermally coupled to the thermally conductive member and is configured for at least one of (i) receiving a magnetic resonance signal from a spatial region that is contiguous with and/or overlaps a spatial region from which at least one other of the plurality of coil elements is configured to receive a signal and (ii) transmitting a radiofrequency signal to a spatial region that is contiguous with and/or overlaps a spatial region to which at least one other of the plurality coil elements is configured to transmit a radiofrequency signal.

    摘要翻译： 可用于全身MRI扫描仪和/或专用MRI系统中的超导RF线圈阵列。 一些实施例提供一种超导RF线圈阵列，用于在样品的磁共振分析期间接收来自样品的信号和向样品传输信号中的至少一种，所述超导RF线圈阵列包括构造成被低温冷却的导热构件，以及多个 包括超导材料的线圈元件，其中每个线圈元件热耦合到导热构件，并且被配置用于以下中的至少一个：（i）从与空间区域邻接和/或重叠的空间区域接收磁共振信号， 所述多个线圈元件中的至少另一个线圈元件被配置为接收信号，并且（ii）将射频信号发射到与所述多个线圈中的至少另一个线圈的空间区域邻接和/或重叠的空间区域 元件被配置为发射射频信号。

    Cylindrical Gradient Coil Arrangement for a Magnetic Resonance Device
    10.
    发明申请
    Cylindrical Gradient Coil Arrangement for a Magnetic Resonance Device 有权
    用于磁共振器件的圆柱梯度线圈布置

    公开(公告)号：US20130229183A1

    公开(公告)日：2013-09-05

    申请号：US13783293

    申请日：2013-03-02

    申请人： Ralph Kimmlingen ,  Andreas Krug

    发明人： Ralph Kimmlingen ,  Andreas Krug

    IPC分类号： G01R33/34

    CPC分类号： G01R33/3403 ,  G01R33/3856

    摘要： A cylindrical gradient coil arrangement is provided for a magnetic resonance device. The arrangement includes at least one conductive structure that forms at least one gradient coil and a cooling device that uses a cooling fluid to cool the at least one conductive structure. The arrangement includes an outer carrier structure and an inner carrier structure. The outer carrier structure includes two tubular, coaxial outer sections with different diameters. The inner, tubular carrier structure is arranged between and coaxially with the outer sections. The conductive structure is placed on the inner carrier structure. The inner carrier structure is spaced from the outer sections by a clearance. The clearance forms a cooling channel through which the cooling fluid of the cooling device may flow. The inner carrier structure is fastened to the outer carrier structure at least in a point-by-point manner.

    摘要翻译： 提供了一种用于磁共振装置的圆柱形梯度线圈装置。 该装置包括形成至少一个梯度线圈的至少一个导电结构和使用冷却流体来冷却至少一个导电结构的冷却装置。 该装置包括外部载体结构和内部载体结构。 外部载体结构包括具有不同直径的两个管状同轴外部部分。 内部管状载体结构布置在外部部分之间并且与外部部分同轴。 导电结构放置在内部载体结构上。 内部载体结构与外部部分间隔开间隙。 间隙形成冷却装置的冷却流体可流过的冷却通道。 内部载体结构至少以逐点方式固定到外部载体结构。