Magnetic resonance device with attachment means for attaching a gradient coil, attachment means
    12.
    发明申请
    Magnetic resonance device with attachment means for attaching a gradient coil, attachment means 有权
    具有用于附接梯度线圈,附接装置的附接装置的磁共振装置

    公开(公告)号:US20060267589A1

    公开(公告)日:2006-11-30

    申请号:US11441317

    申请日:2006-05-25

    IPC分类号: G01V3/00

    CPC分类号: G01R33/28 G01R33/385

    摘要: Magnetic resonance device (1) with an assembly (3) having a recess, in which a gradient coil unit (9) is attached with at least one attachment means (15, . . . 15D), the attachment means (15 ... 15D) having two members (21,23), between which an elastic element (25) is disposed, only one of the members (21,23) in each instance being in contact with either the gradient coil unit (9) or the assembly (3), with the attachment means (15, . . . 15D) acting as an attachment means (15, . . . 15D) having no elastic element (25) in a first attachment state, in which at least a minimum force (FMIN) presses the two members (21, 23) together, in that the two members (21, 23) have stop surfaces (31), which are in contact with each other due to the minimum force acting on the members (21, 23) [lacuna] compressed elastic element (25) and with the attachment means (15, . . . 15D) acting as a spring unit in a second fixing state, in that the elastic element (25) pushes the members (21, 23) apart in the event of forces smaller than the minimum force (FMIN) and causes the attachment means (15, . . . 15D) to be fixed in relation to the gradient coil unit (9) and the assembly (3). This has the advantage that there is no loosening of the attachment means in particular even in the event of thermal fluctuations.

    摘要翻译: 具有凹部的组件(3)的磁共振装置(1),其中梯度线圈单元(9)附接有至少一个附接装置(15 ... 15D),所述附接装置(15 ..) 15D)具有两个构件(21,23),两个构件(21,23)之间布置有弹性元件(25),每个构件(21,23)中的仅一个与梯度线圈单元(9)或 所述组件(3)具有作为在第一附接状态下没有弹性元件(25)的附接装置(15,...,15D)的附接装置(15 ... 15D),其中至少 因为两个构件(21,23)具有彼此接触的止动表面(31),所以两个构件(21,23)一起挤压两个构件(21,23),因为最小力 到达构件(21,23)[压缩弹性元件(25))和作为第二固定状态的弹簧单元的附接装置(15 ... 15D)的最小力,其中 弹性元素 t(25)在力小于最小力(F MIN MIN)的情况下将构件(21,23)分开推动,并使附接装置(15, 。 。 15D)相对于梯度线圈单元(9)和组件(3)固定。 这具有的优点是即使在热波动的情况下也不会特别地使连接装置松动。

    Gradient coil assembly, gradient coil, and magnetic resonance imaging system

    公开(公告)号:US10295629B2

    公开(公告)日:2019-05-21

    申请号:US14551888

    申请日:2014-11-24

    IPC分类号: G01V3/00 G01R33/385

    摘要: The present embodiments provide a gradient coil assembly. The gradient coil assembly includes an aluminum wire body, and a copper wire end connected by cold pressure welding to two ends of the aluminum wire body. Using the gradient coil according to a particular embodiment, it is possible to reduce gradient coil weight as well as reduce the thickness of an outer vacuum chamber used for a magnet, thereby reducing the cost of the magnet and gradient coil, and making it less difficult to install and maintain the magnet and gradient coil. There is no problem of oxidation associated with the cold pressure welding of the aluminum wire body to the copper wire ends, so quality defects arising from such oxidation are avoided.

    Medical imaging apparatus
    15.
    发明授权
    Medical imaging apparatus 有权
    医疗成像装置

    公开(公告)号:US09451902B2

    公开(公告)日:2016-09-27

    申请号:US13628822

    申请日:2012-09-27

    申请人: Stefan Stocker

    发明人: Stefan Stocker

    摘要: A medical imaging apparatus includes a first imaging modality which is formed by a magnetic resonance apparatus and which comprises a cylindrical gradient coil unit, and a further imaging modality which comprises a detector unit. The detector unit of the further imaging modality is supported in a radial direction within an area surrounded by the gradient coil unit and an annular gap is disposed between the detector unit of the further imaging modality and the gradient coil unit. The further imaging modality includes a pressure unit which is disposed in the annular gap between the detector unit of the further imaging modality and the gradient coil unit.

    摘要翻译: 医疗成像装置包括由磁共振装置形成的第一成像模式,其包括圆柱形梯度线圈单元,以及包括检测器单元的另一成像模式。 另外成像模式的检测器单元在由梯度线圈单元包围的区域内的径向方向上被支撑,并且环形间隙设置在另外的成像模态的检测器单元和梯度线圈单元之间。 另外的成像模式包括压力单元,其设置在另一成像模态的检测器单元与梯度线圈单元之间的环形间隙中。

    Cooling Unit for Cooling a Detection Device in an Imaging System and Detection Devices and Imaging Systems Therefrom
    16.
    发明申请
    Cooling Unit for Cooling a Detection Device in an Imaging System and Detection Devices and Imaging Systems Therefrom 有权
    用于冷却成像系统中的检测装置和检测装置和成像系统的冷却单元

    公开(公告)号:US20120091341A1

    公开(公告)日:2012-04-19

    申请号:US12903445

    申请日:2010-10-13

    摘要: A cooling unit operating in a magnetic field is provided. The cooling unit includes an encasement body having a non-electrically conductive composition and defining a first and second opposing planar surface. The cooling unit also includes a metal conduit disposed in the encasement body substantially parallel to the first surface. Additionally, the cooling unit also includes a series of metal fins disposed in the encasement body and extending from the conduit. In some configurations the fins can be substantially parallel to the first surface. Further, in some configurations, non-electrically conductive inserts having a thermal conductivity greater than a thermal conductivity of the encasement body can be disposed in a portion of the encasement body between one of the first and second surfaces and one or more of the metals fins.

    摘要翻译: 提供了在磁场中工作的冷却单元。 冷却单元包括具有非导电组合物并且限定第一和第二相对的平坦表面的封装体。 冷却单元还包括设置在包装体中的基本上平行于第一表面的金属导管。 此外,冷却单元还包括设置在包装体中并从导管延伸的一系列金属翅片。 在一些构造中,翅片可以基本上平行于第一表面。 此外,在一些构造中,具有大于封装体的热导率的导热率的非导电插入件可以设置在第一和第二表面中的一个之间的包装体的一部分中,以及一个或多个金属片 。

    Arrangement to connect gradient current feed lines in a magnetic resonance apparatus
    18.
    发明授权
    Arrangement to connect gradient current feed lines in a magnetic resonance apparatus 有权
    在磁共振设备中​​连接梯度电流馈线的布置

    公开(公告)号:US07924005B2

    公开(公告)日:2011-04-12

    申请号:US12428854

    申请日:2009-04-23

    IPC分类号: G01V3/00

    摘要: An arrangement for connection of gradient current feed lines in a magnetic resonance apparatus has an electrically insulating connection plate with at least one connection device. The connection device is fashioned to electrically connect a first gradient current feed line with a second gradient current feed line and is associated with a gradient coil that forms a gradient field via a supplied gradient current for a spatial direction. The supply ensues via the two gradient current feed lines connected with one another. A base plate that is fashioned for fastening the connection plate to a magnet housing of the magnetic resonance apparatus. An electrically insulating layer to damp vibrations of the connection plate is arranged between the base plate and the connection plate.

    摘要翻译: 用于在磁共振装置中连接梯度电流馈线的装置具有至少一个连接装置的电绝缘连接板。 连接装置的形式是将第一梯度电流馈送线与第二梯度电流馈电线电连接,并与经由所供应的用于空间方向的梯度电流形成梯度场的梯度线圈相关联。 通过彼此连接的两个梯度电流馈电线供应电源。 一种用于将连接板紧固到磁共振装置的磁体壳体上的基板。 在基板和连接板之间布置有用于抑制连接板振动的电绝缘层。

    SAFEGUARD FOR UNSCREWING GRADIENT COIL CONNECTIONS
    19.
    发明申请
    SAFEGUARD FOR UNSCREWING GRADIENT COIL CONNECTIONS 失效
    保护等级线圈连接

    公开(公告)号:US20110034054A1

    公开(公告)日:2011-02-10

    申请号:US12849051

    申请日:2010-08-03

    IPC分类号: H01R13/62

    摘要: A securing part and an unscrewing safeguard system of a gradient coil plug for an MRT that can be fixed to a gradient coil bushing include a gradient coil plug, a gradient coil bushing, a cap nut with a keyed surface and, to secure the gradient coil plug to the gradient coil bushing, a multi-tooth ring fixed to the plug so that the ring cannot rotate, and a securing part with a multi-tooth ring engagement contour that can be brought into engagement with the multi-tooth ring, and with a keyed surface engagement contour that can be brought into mating with the keyed surface of the ring.

    摘要翻译: 用于可固定到梯形线圈套管上的用于MRT的梯形线圈塞的固定部分和旋松保护系统包括梯度线圈塞,梯形线圈套管,带有键面的盖螺母,并固定梯度线圈 插入梯度线圈衬套,固定到插头上的多齿环,使得环不能旋转,以及具有多齿环接合轮廓的固定部分,其可以与多齿环接合,并且与 可以与环的带键表面配合的带键表面接合轮廓。

    ARRANGEMENT TO CONNECT GRADIENT CURRENT FEED LINES IN A MAGNETIC RESONANCE APPARATUS
    20.
    发明申请
    ARRANGEMENT TO CONNECT GRADIENT CURRENT FEED LINES IN A MAGNETIC RESONANCE APPARATUS 有权
    在磁共振装置中连接梯级电流线的布置

    公开(公告)号:US20090267605A1

    公开(公告)日:2009-10-29

    申请号:US12428854

    申请日:2009-04-23

    IPC分类号: G01R33/34

    摘要: An arrangement for connection of gradient current feed lines in a magnetic resonance apparatus has an electrically insulating connection plate with at least one connection device. The connection device is fashioned to electrically connect a first gradient current feed line with a second gradient current feed line and is associated with a gradient coil that forms a gradient field via a supplied gradient current for a spatial direction. The supply ensues via the two gradient current feed lines connected with one another. A base plate that is fashioned for fastening the connection plate to a magnet housing of the magnetic resonance apparatus. An electrically insulating layer to damp vibrations of the connection plate is arranged between the base plate and the connection plate.

    摘要翻译: 用于在磁共振装置中连接梯度电流馈线的装置具有至少一个连接装置的电绝缘连接板。 连接装置的形式是将第一梯度电流馈送线与第二梯度电流馈电线电连接,并与经由所供应的用于空间方向的梯度电流形成梯度场的梯度线圈相关联。 通过彼此连接的两个梯度电流馈电线供应电源。 一种用于将连接板紧固到磁共振装置的磁体壳体上的基板。 在基板和连接板之间布置有用于抑制连接板振动的电绝缘层。