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27 条记录 (耗时 0.02 秒)

    Switchable gradient coil arrangement
    3.
    发明授权
    Switchable gradient coil arrangement 有权
    可切换梯度线圈布置

    公开(公告)号：US06297635B1

    公开(公告)日：2001-10-02

    申请号：US09436602

    申请日：1999-11-09

    申请人： Winfried Arz ,  Matthias Gebhardt ,  Franz Schmitt ,  Johann Schuster

    发明人： Winfried Arz ,  Matthias Gebhardt ,  Franz Schmitt ,  Johann Schuster

    IPC分类号： G01V300

    CPC分类号： G01R33/385

    摘要： A gradient coil arrangement for a nuclear magnetic resonance tomography apparatus contains windings arranged in a primary winding plane as well as further windings arranged in a secondary winding plane. The primary and the secondary winding planes are radially spaced from each other thereby have a radial spacing. At an end face of the gradient coil arrangement, the windings have a number of open (free) conductor ends, and connector elements connect conductor ends in the primary winding plane to conductor ends in the secondary winding plane and/or connect conductor ends within one of the winding planes to one another. The connector elements are switchably fashioned for forming gradient coil arrangements having different field qualities/performance features.

    摘要翻译： 用于核磁共振断层摄影装置的梯度线圈装置包含布置在初级绕组平面中的绕组以及布置在次级绕组平面中的另外的绕组。 初级和次级绕组平面彼此径向间隔开，因此具有径向间隔。 在梯度线圈装置的端面处，绕组具有多个开放（自由）导体端，并且连接器元件将初级绕组平面中的导体端连接到次级绕组平面中的导体端和/或将导体端部连接在一个 的绕组飞机彼此之间。 连接器元件可切换地形成用于形成具有不同的场质量/性能特征的梯度线圈装置。

    Actively shielded, transversal gradient coil system with 3D connection technology
    4.
    发明授权
    Actively shielded, transversal gradient coil system with 3D connection technology 有权
    主动屏蔽，横向梯度线圈系统采用3D连接技术

    公开(公告)号：US06236209B1

    公开(公告)日：2001-05-22

    申请号：US09429173

    申请日：1999-10-28

    申请人： Winfried Arz ,  Johann Schuster

    发明人： Winfried Arz ,  Johann Schuster

    IPC分类号： G01V300

    CPC分类号： G01R33/385 ,  G01R33/3856 ,  G01R33/4215

    摘要： Actively shielded, transversal gradient coil system for a nuclear magnetic resonance tomography apparatus, wherein the windings of the coils implemented in 3D technology include a plurality of open conductor ends, and wherein the connector elements for conductor ends discharging between the center planes of neighboring shim pockets are planar plate connectors arranged in a plurality of planes, insulated from one another, that respectively include a base part secured to a carrier ring and lying completely outside the shim pocket and include conductor fastening legs projecting substantially radially outward therefrom that are arranged circumferentially offset relative to one another in the planes lying above one another.

    摘要翻译： 用于核磁共振断层摄影装置的积极屏蔽的横向梯度线圈系统，其中以3D技术实现的线圈的绕组包括多个开放的导体端，并且其中用于导体端的连接器元件在相邻的垫片口袋的中心平面之间排出 是布置在彼此绝缘的多个平面中的平板连接器，其分别包括固定到承载环并完全位于垫片袋外部的基部，并且包括基本上径向向外突出的导体紧固腿，所述导体紧固腿周向偏移相对布置 在彼此之间的飞机中彼此相交。

    Coil system for magnetic resonance systems with integrated cooling unit
    5.
    发明授权
    Coil system for magnetic resonance systems with integrated cooling unit 失效
    具有集成冷却单元的磁共振系统的线圈系统

    公开(公告)号：US06236207B1

    公开(公告)日：2001-05-22

    申请号：US09365906

    申请日：1999-08-03

    申请人： Winfried Arz ,  Johann Schuster

    发明人： Winfried Arz ,  Johann Schuster

    IPC分类号： G01V300

    CPC分类号： G01R33/3856

    摘要： A coil system for magnetic resonance systems that surrounds a generally cylindrical examination volume, has coil plies formed by X-gradient coils arranged symmetrically relative to the YZ plane and spaced from one another, and Y-coils arranged symmetrically relative to the XZ plane and spaced from one another, and Z-coils arranged symmetrically relative to the XY plane and spaced from another. An indirect cooling with embedded cooling conduits through which a coolant flows is achieved by cooling conduits integrated in the interspaces of the conductor structure of the coil plies for cooling the conductor structures in a coil ply lying therebelow and/or thereabove.

    摘要翻译： 用于磁共振系统的线圈系统，其围绕大体上的圆柱形检查体积，具有由相对于YZ平面对称布置并彼此间隔开的X梯度线圈形成的线圈层，以及相对于XZ平面对称布置的Y线圈 并且相对于XY平面对称地布置并与另一个间隔开的Z形线圈。 通过将集成在线圈层的导体结构的间隙中的冷却管道冷却，通过冷却剂流过的嵌入式冷却管道进行间接冷却，以冷却位于其下方和/或其上方的线圈层中的导体结构。

    Magnetic resonance apparatus with actuators for counteracting multi-order vibrational modes
    7.
    发明授权
    Magnetic resonance apparatus with actuators for counteracting multi-order vibrational modes 失效
    具有用于抵消多阶振动模式的致动器的磁共振装置

    公开(公告)号：US06353319B1

    公开(公告)日：2002-03-05

    申请号：US09343848

    申请日：1999-06-30

    申请人： Peter Dietz ,  Rudolf Roeckelein ,  Winfried Arz

    发明人： Peter Dietz ,  Rudolf Roeckelein ,  Winfried Arz

    IPC分类号： G01V300

    CPC分类号： G01R33/3854

    摘要： A magnetic resonance apparatus has a gradient tube at which at least one gradient coil with current flowing therein in operation is arranged, and at which a number of elements for generating a force acting on the gradient tube as needed are arranged, with the positions of the elements being selected dependent at least on the vibratory mode of the gradient tube, so that a counteracting mode is excited given drive of the elements. The elements serving for the excitation of X and/or Y modes are distributed in the middle and around the circumference of the gradient tube with respect to the length of the gradient tube and/or the elements serving for the excitation of the Z mode are distributed along the length and the circumference of the gradient tube.

    摘要翻译： 磁共振装置具有梯度管，在该梯度管上布置有至少一个具有在其中流动的电流的梯度线圈，并且根据需要设置多个用于产生作用在梯度管上的力的元件，其中， 至少根据梯度管的振动模式来选择元件，使得在元件的驱动下激发抵消模式。 用于激发X和/或Y模式的元件相对于梯度管的长度分布在梯度管的中间和周围，并且/或用于Z模式的激发的元件被分布 沿着梯度管的长度和周长。