公开(公告)号：US10162024B2

公开(公告)日：2018-12-25

申请号：US15019567

申请日：2016-02-09

申请人： Ludwig Eberler ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Jürgen Nistler

IPC分类号： G01R33/34 ,  G01R33/36 ,  G01R33/565

摘要： An MR device has at least one distribution network for distributing an electrical input signal (to a number of feeding points of an MR antenna. The distribution network has at least one first signal output and one second signal output connected to a node, a first phase-shifting element disposed between the node and the first signal output, and a second phase-shifting element disposed between the node and the second signal output. The first phase-shifting element and the second phase-shifting element create a different phase shift, and the first phase-shifting element and the second phase-shifting element are embodied as electrical lines of different length. The distribution network is applicable, for example, to feeding signals to a body coil of the MR device, especially a so-called birdcage antenna.

公开(公告)号：US20160238678A1

公开(公告)日：2016-08-18

申请号：US15019567

申请日：2016-02-09

申请人： Ludwig Eberler ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Jürgen Nistler

IPC分类号： G01R33/34 ,  G01R33/36

CPC分类号： G01R33/34076 ,  G01R33/3607 ,  G01R33/3678 ,  G01R33/5659

摘要： An MR device has at least one distribution network for distributing an electrical input signal (to a number of feeding points of an MR antenna. The distribution network has at least one first signal output and one second signal output connected to a node, a first phase-shifting element disposed between the node and the first signal output, and a second phase-shifting element disposed between the node and the second signal output. The first phase-shifting element and the second phase-shifting element create a different phase shift, and the first phase-shifting element and the second phase-shifting element are embodied as electrical lines of different length. The distribution network is applicable, for example, to feeding signals to a body coil of the MR device, especially a so-called birdcage antenna.

摘要翻译： MR设备具有至少一个用于分配电输入信号（到MR天线的多个馈送点）的分配网络，分配网络具有至少一个第一信号输出和连接到节点的一个第二信号输出，第一阶段 设置在节点和第一信号输出之间的移位元件以及设置在节点和第二信号输出之间的第二移相元件，第一移相元件和第二移相元件产生不同的相移，以及 第一移相元件和第二移相元件被实施为不同长度的电线，分配网络可应用于例如将信号馈送到MR器件的体线圈，特别是所谓的鸟笼天线 。

公开(公告)号：US20150054506A1

公开(公告)日：2015-02-26

申请号：US14465967

申请日：2014-08-22

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler

IPC分类号： G01R33/36 ,  G01R33/385 ,  G01R33/34

CPC分类号： G01R33/36 ,  G01R33/34076 ,  G01R33/3628 ,  G01R33/3678 ,  G01R33/385

摘要： The embodiments relate to a magnetic resonance coil for a magnetic resonance device with a measuring chamber for an examination object and a cylindrical birdcage antenna arrangement having a plurality of antenna elements disposed at least in some areas around a measuring chamber in the form of circumferential antenna rings or axial outer rods connecting the rings. The antenna elements include electric components, e.g., reactive capacitive and/or inductive systems. The magnetic resonance coil also has at least two antenna feeds, e.g., phase-offset in relation to one another by 90°, by which radio-frequency energy is able to be supplied to the birdcage antenna arrangement. The antenna feeds include at least one symmetrical feed via at least one of the electric components of the birdcage antenna arrangement as well is at least one assigned asymmetrical feed between the birdcage antenna arrangement and a screen connection.

摘要翻译： 这些实施例涉及一种用于具有用于检查对象的测量室的磁共振装置的磁共振线圈和具有多个天线元件的圆柱形鸟笼天线装置，所述多个天线元件至少设置在周向天线环形式的测量室周围的一些区域中 或连接环的轴向外部杆。 天线元件包括电子部件，例如无功电容和/或电感系统。 磁共振线圈还具有至少两个天线馈电，例如相对于90°的相位偏移，通过该天线馈送能够将射频能量提供给鸟笼天线装置。 天线馈送包括鸟笼天线装置的至少一个电气部件中的至少一个对称馈电，以及鸟笼天线装置和屏幕连接之间的至少一个分配的非对称馈电。

公开(公告)号：US08108027B2

公开(公告)日：2012-01-31

申请号：US12213656

申请日：2008-06-23

申请人： Ludwig Kreischer ,  Jürgen Nistler ,  Martin Rausch ,  Wolfgang Renz ,  Norbert Rietsch

发明人： Ludwig Kreischer ,  Jürgen Nistler ,  Martin Rausch ,  Wolfgang Renz ,  Norbert Rietsch

IPC分类号： A61B5/05

CPC分类号： G01R33/481 ,  A61B6/037 ,  A61B6/4417 ,  G01R33/56509

摘要： A combined positron emission tomography/magnetic resonance imaging apparatus including a positron emission tomography apparatus having at least one radiation detector, and a magnetic resonance imaging apparatus having at least one gradient coil and a radio-frequency antenna device. At least one embodiment of the combined position emission tomography/magnetic resonance imaging apparatus is developed further in that a first molding is provided, whose surface coincides with the inner shell of the at least one gradient coil, and a second molding is provided, whose surface coincides with the outer shell of the radiation detector, the distance between the two shells being virtually constant over the circumference of the shells, and a vacuum seal being arranged in each case along at least a first and a second circumferential line such that a closed cavity is formed between the vacuum seals.

摘要翻译： 包括具有至少一个辐射检测器的正电子发射断层摄影装置和具有至少一个梯度线圈和射频天线装置的磁共振成像装置的组合正电子发射断层摄影/磁共振成像装置。 组合位置发射断层摄影/磁共振成像装置的至少一个实施例被进一步开发，其中提供了第一模制件，其表面与至少一个梯度线圈的内壳重合，并且提供了第二模制件，其表面 与辐射检测器的外壳重合，两个壳体之间的距离在壳体的圆周上基本上恒定，并且真空密封件沿着至少第一和第二圆周线布置在每种情况下，使得闭合腔 形成在真空密封件之间。

公开(公告)号：US08072218B2

公开(公告)日：2011-12-06

申请号：US12445537

申请日：2008-04-02

申请人： Jürgen Nistler ,  Wolfgang Renz

发明人： Jürgen Nistler ,  Wolfgang Renz

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/288 ,  G01R33/34007 ,  G01R33/3403 ,  G01R33/34076 ,  G01R33/36

摘要： A whole-body antenna for a magnetic resonance apparatus has an antenna structure composed of a number of antenna rods extending in a rod direction between first and second ends of the antenna structure. The antenna rods are distributed around a central axis of the antenna structure, forming an examination region for an examination subject in a magnetic resonance examination. The antenna rods are coupled to each other at their first ends by a ferrule. Each of the rods is a hollow rod, and each rod is connected at its second end to ground via a hollow ring. Conductors are routed in the interior of the hollow rods, and can be routed through the hollow ring to the exterior of the antenna structure.

摘要翻译： 用于磁共振装置的全身天线具有天线结构，该天线结构由在天线结构的第一和第二端之间沿杆方向延伸的多个天线杆组成。 天线杆围绕天线结构的中心轴分布，在磁共振检查中形成检查对象的检查区域。 天线杆在其第一端通过套圈彼此联接。 每个杆是中空杆，并且每个杆的第二端通过中空环连接到地面。 导体被布置在空心棒的内部，并且可以通过空心环布线到天线结构的外部。

公开(公告)号：US20100036237A1

公开(公告)日：2010-02-11

申请号：US12441974

申请日：2007-09-19

申请人： Eva Eberlein ,  Ludwig Eberler ,  Andreas Krug ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Axel Vom Endt

发明人： Eva Eberlein ,  Ludwig Eberler ,  Andreas Krug ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Axel Vom Endt

IPC分类号： A61B5/055

CPC分类号： G01R33/34046 ,  G01R33/28 ,  G01R33/34076 ,  G01R33/422 ,  G01R33/481

摘要： A detector unit for arrangement in a field generating unit of a magnetic resonance device has an RF transmission/reception system for transmitting RF pulses into, or receiving magnetic resonance signals from, an examination volume of the field generation unit. The RF transmission/reception system surrounds a patient tunnel at a radial distance from a tunnel axis thereof, and is divided into two sub-systems located at a distance from each other along the direction of the tunnel axis, so as to form a substantially annular cavity or interstice therebetween.

摘要翻译： 用于布置在磁共振装置的场产生单元中的检测器单元具有RF发射/接收系统，用于将RF脉冲发送到场发生单元的检查体中或从其接收磁共振信号。 RF发送/接收系统围绕患者隧道在距离其隧道轴线的径向距离处，并且被分成沿着隧道轴线的方向彼此间隔一定距离的两个子系统，以便形成大致环形 空腔或间隙。

公开(公告)号：US07420372B2

公开(公告)日：2008-09-02

申请号：US11789235

申请日：2007-04-24

申请人： Jürgen Nistler ,  Martin Rausch ,  Wolfgang Renz

发明人： Jürgen Nistler ,  Martin Rausch ,  Wolfgang Renz

IPC分类号： G01V3/00

CPC分类号： G01R33/3854

摘要： There is described a magnetic resonance device incorporating at least one first component part, which when the magnetic resonance device is operating oscillates, attached by at least one local load-bearing joint to at least one second oscillation-sensitive component part of the magnetic resonance device, where the joint has at least one actuatable facility for generating counter-oscillations which damp an oscillation of the first component part, where the second component part is a cladding element, in particular a vacuum cladding, which is affixed to the magnet via the joint, whereby a gap between the cladding element and the magnet is evacuatable, and the gap is provided with a pressure-isolating acoustically soft seal, in particular in the form of bellows.

摘要翻译： 描述了一种磁共振装置，该磁共振装置包括至少一个第一部件，当磁共振装置工作时振荡，该至少一个第一部件部分通过至少一个局部承载接头附接到磁共振装置的至少一个第二振荡敏感部件 ，其中所述接头具有至少一个可致动设备，用于产生抵消所述第一部件的振荡的相反振荡，其中所述第二部件是包层元件，特别是真空包层，其通过所述接头固定到所述磁体 由此，包层元件和磁体之间的间隙是可抽空的，并且间隙设置有隔离声学软密封，特别是以波纹管的形式。

公开(公告)号：US07239141B2

公开(公告)日：2007-07-03

申请号：US11340216

申请日：2006-01-26

申请人： Jürgen Nistler ,  Wolfgang Renz

发明人： Jürgen Nistler ,  Wolfgang Renz

IPC分类号： G01V3/00

CPC分类号： A61B5/055 ,  G01R33/34007 ,  G01R33/34046 ,  G01R33/3628 ,  G01R33/385

摘要： A magnetic resonance apparatus has an integrated gradient and radio frequency coil unit that includes at least one antenna rod with a conductor and a gradient coil unit. At least one electrical connection exists between the conductor and an electrical contact region arranged at an adjoining region of the gradient coil unit. The electrical connection is formed by a flexible circuit board that is electrically connected both with the conductor and with the contact region. Such an electrical connection of the antenna rod is insensitive to strong vibrations.

摘要翻译： 磁共振装置具有集成的梯度和射频线圈单元，其包括至少一个具有导体的天线杆和梯度线圈单元。 在导体与布置在梯度线圈单元的相邻区域的电接触区域之间至少存在一个电连接。 电连接由与导体和接触区域电连接的柔性电路板形成。 天线杆的这种电气连接对强烈的振动是不敏感的。

公开(公告)号：US20180196114A1

公开(公告)日：2018-07-12

申请号：US15861888

申请日：2018-01-04

申请人： Jürgen Nistler

发明人： Jürgen Nistler

IPC分类号： G01R33/565 ,  G01R33/56

CPC分类号： G01R33/5659 ,  G01R33/445 ,  G01R33/4835 ,  G01R33/5608 ,  G01R33/583

摘要： The disclosure relates to a method for determining a transfer function of a transmitting system of a magnetic resonance device, to a method for the correction of a transmission signal of a magnetic resonance device, to a corresponding magnetic resonance device, and to a computer program product for carrying out the method. The method includes determining a transfer function using a transmission characteristic of a transmitting system of the magnetic resonance device, wherein the transfer function is frequency-dependent. A transmission signal may be corrected using the transfer function. An excitation pulse may be emitted by the transmitting system using the corrected transmission signal.

公开(公告)号：US09098672B2

公开(公告)日：2015-08-04

申请号：US13435620

申请日：2012-03-30

申请人： Dirk Diehl ,  Sebastian Martius ,  Volker Matschl ,  Jürgen Nistler

发明人： Dirk Diehl ,  Sebastian Martius ,  Volker Matschl ,  Jürgen Nistler

IPC分类号： G06F17/50 ,  G01R33/34 ,  G01R33/422

CPC分类号： G06F17/5086 ,  G01R33/34007 ,  G01R33/34076 ,  G01R33/422

摘要： A method determines an optimal structure of a high-frequency shield of a high-frequency antenna of a magnetic resonance arrangement. The high-frequency shield shields the high-frequency antenna from a gradient-coil arrangement. A three-dimensional initial structure of the high-frequency shield is defined in accordance with structural parameters and jointly with the high-frequency antenna, the gradient-coil arrangement, or both the high-frequency antenna and the gradient-coil arrangement. The structural parameters are optimized via an optimization method with respect to at least one optimization criterion.

摘要翻译： 一种方法确定磁共振装置的高频天线的高频屏蔽的最佳结构。 高频屏蔽屏蔽高频天线与梯度线圈布置。 高频屏蔽的三维初始结构根据结构参数和高频天线，梯度线圈布置或高频天线和梯度线圈布置两者来定义。 通过关于至少一个优化标准的优化方法优化结构参数。