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：US09829549B2

公开(公告)日：2017-11-28

申请号：US13890128

申请日：2013-05-08

申请人： Ludwig Eberler ,  Jürgen Nistler ,  Markus Vester

发明人： Ludwig Eberler ,  Jürgen Nistler ,  Markus Vester

IPC分类号： G01R33/34 ,  G01R33/422 ,  G01R33/36 ,  G01R33/48 ,  G01R33/563

CPC分类号： G01R33/34092 ,  G01R33/34046 ,  G01R33/34076 ,  G01R33/3628 ,  G01R33/422 ,  G01R33/4806 ,  G01R33/56341

摘要： A whole-body coil for a magnetic resonance tomography device includes one or more compensation capacitors between a high-frequency antenna and an RF shield. The one or more compensation capacitors each have variable capacitance caused by a variation in a distance of the RF shield to the high-frequency 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：US20150168516A1

公开(公告)日：2015-06-18

申请号：US14570081

申请日：2014-12-15

申请人： Ludwig Eberler ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Jürgen Nistler

IPC分类号： G01R33/38 ,  G01R33/36

CPC分类号： G01R33/3607 ,  G01R33/28 ,  G01R33/583

摘要： The embodiments relate to a method and a device for spatial homogenization of the field strength of voltages of radiofrequency pulses of a number of RF transmitters, wherein (a) the measured complex voltages, induced by the electromagnetic field of the antenna, of a plurality of field probes, which are disposed in the vicinity of the antenna, are respectively superposed with a fitting phase shift and used for establishing the new desired homogenized voltages of the radiofrequency pulses of the antenna by a complex transfer function, and/or (b) output signals of at least two directional couplers on the RF feed lines of the antenna are superposed in a respectively fitting phase-shifted manner and these are used to establish complex impedances or scattering parameters of a complex scattering matrix of the antenna, which are used for establishing the new desired homogenized voltages of the radiofrequency pulses of the antenna.

摘要翻译： 实施例涉及一种用于空间均匀化多个RF发射机的射频脉冲的电压的场强的方法和装置，其中（a）由天线的电磁场引起的测量的复合电压为多个 配置在天线附近的场探头分别与拟合相移叠加，用于通过复传递函数建立天线的射频脉冲的新的期望的均匀化电压，和/或（b）输出 在天线的RF馈线上的至少两个定向耦合器的信号以相应适合的相移方式重叠，并且这些信号用于建立天线的复散射矩阵的复阻抗或散射参数，其用于建立 天线的射频脉冲的新的期望的均匀化电压。

公开(公告)号：US20130300418A1

公开(公告)日：2013-11-14

申请号：US13890128

申请日：2013-05-08

申请人： Ludwig Eberler ,  Jürgen Nistler ,  Markus Vester

发明人： Ludwig Eberler ,  Jürgen Nistler ,  Markus Vester

IPC分类号： G01R33/34

CPC分类号： G01R33/34092 ,  G01R33/34046 ,  G01R33/34076 ,  G01R33/3628 ,  G01R33/422 ,  G01R33/4806 ,  G01R33/56341

摘要： A whole-body coil for a magnetic resonance tomography device includes one or more compensation capacitors between a high-frequency antenna and an RF shield. The one or more compensation capacitors each have variable capacitance caused by a variation in a distance of the RF shield to the high-frequency antenna.

摘要翻译： 用于磁共振断层摄影装置的全身线圈包括高频天线和RF屏蔽之间的一个或多个补偿电容器。 一个或多个补偿电容器各自具有由RF屏蔽到高频天线的距离的变化引起的可变电容。

公开(公告)号：US09007062B2

公开(公告)日：2015-04-14

申请号：US13098117

申请日：2011-04-29

申请人： Ludwig Eberler ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Jürgen Nistler

IPC分类号： G01R33/20 ,  G01R33/36 ,  H03H1/00

CPC分类号： G01R33/3685 ,  H03H1/0007

摘要： The present embodiments relate to a standing wave trap for a magnetic resonance tomography device. The standing wave trap includes a conductor region extending in one plane and at least one capacitor that is conductively connected to two sections of the conductor region.

摘要翻译： 本实施例涉及磁共振断层摄影装置的驻波捕获器。 驻波捕集器包括在一个平面中延伸的导体区域和至少一个与导体区域的两个部分导电连接的电容器。

公开(公告)号：US20110267051A1

公开(公告)日：2011-11-03

申请号：US13098117

申请日：2011-04-29

申请人： Ludwig Eberler ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Jürgen Nistler

IPC分类号： G01R33/20

CPC分类号： G01R33/3685 ,  H03H1/0007

摘要： The present embodiments relate to a standing wave trap for a magnetic resonance tomography device. The standing wave trap includes a conductor region extending in one plane and at least one capacitor that is conductively connected to two sections of the conductor region.

摘要翻译： 本实施例涉及磁共振断层摄影装置的驻波捕获器。 驻波捕集器包括在一个平面中延伸的导体区域和至少一个与导体区域的两个部分导电连接的电容器。

公开(公告)号：US08054228B2

公开(公告)日：2011-11-08

申请号：US12487728

申请日：2009-06-19

申请人： Ludwig Eberler ,  Wolfgang Renz

发明人： Ludwig Eberler ,  Wolfgang Renz

IPC分类号： H01Q1/26

CPC分类号： G01R33/34076 ,  G01R33/341 ,  G01R33/3415 ,  G01R33/36 ,  G01R33/365 ,  G01R33/3657 ,  G01R33/3685

摘要： An antenna structure for a magnetic resonance device constructed as a radiating or transmitting antenna of the magnetic resonance device, has a non-metallic antenna conductor containing a discharge gas. When energy is imparted to the discharge gas, the antenna conductor forms an electrically conducting gas discharge column and can be used as an electrically conducting antenna element.

摘要翻译： 构成磁共振装置的辐射或发射天线的磁共振装置的天线结构具有含有放电气体的非金属天线导体。 当向放电气体施加能量时，天线导体形成导电气体放电柱，并且可以用作导电天线元件。

公开(公告)号：US07421747B2

公开(公告)日：2008-09-09

申请号：US10726251

申请日：2003-12-02

申请人： Ludwig Eberler ,  Michael Eberler ,  Wolfgang Renz ,  Guenther Zebelein

发明人： Ludwig Eberler ,  Michael Eberler ,  Wolfgang Renz ,  Guenther Zebelein

IPC分类号： A61B6/04

CPC分类号： G01R33/28

摘要： A device to install and remove a structural component in and from a medical large device has a guide system that simplifies the difficult handling of the structural component due to the size or the weight of the structural component. The guide system has a first guide rail that can be positioned on a height-adjustable patient bed of the large device, and a guide groove which is arranged on the structural component. Additionally, another second guide rail can be attached to the medical large device, which forms an extension of the first guide rail when the patient bed is correspondingly positioned. With this device the structural component can be easily raised and lowered with the aid of the height-adjustable patient bed, and can easily be slid into and out of the large device when the first and second rails are at the same height.

摘要翻译： 用于在医用大型装置中安装和移除结构部件的装置具有引导系统，其简化了由于结构部件的尺寸或重量而导致的结构部件的难以处理。 引导系统具有能够定位在大型装置的高度可调的患者床上的第一导轨和布置在结构部件上的引导槽。 此外，另一个第二导轨可以附接到医疗大型装置，当患者床相应地定位时，形成第一导轨的延伸部。 借助该装置，借助于高度可调节的患者床，结构部件可以容易地升高和降低，并且当第一和第二导轨处于相同的高度时，可容易地滑入和移出大型装置。

公开(公告)号：US20080054901A1

公开(公告)日：2008-03-06

申请号：US11845833

申请日：2007-08-28

申请人： Ludwig Eberler ,  Wolfgang Renz ,  Guenther Zebelein

发明人： Ludwig Eberler ,  Wolfgang Renz ,  Guenther Zebelein

IPC分类号： G01V3/00

CPC分类号： G01R33/28 ,  G01R33/288

摘要： A dividing wall made from at least one first wall material for delimitation of a patient positioning region from an antenna structure of a magnetic resonance tomography apparatus has at least one region at which a specific sub-structure of the antenna structure is located on the side of the dividing wall facing away from the patient positioning region, at which the dividing wall has a wall part made from a second wall material with a dielectric constant that is lower than the dielectric constant of the first wall material.

摘要翻译： 用于从磁共振断层摄影装置的天线结构定界患者定位区域的至少一个第一壁材料制成的分隔壁具有至少一个区域，在该区域中天线结构的特定子结构位于 所述分隔壁背离所述患者定位区域，所述分隔壁具有由第二壁材料制成的壁部分，所述壁部分的介电常数低于所述第一壁材料的介电常数。