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1. 发明授权

US07579835B2 Multi-layer resonator for magnetic resonance applications with circuitry allowing equal magnitude current during active operation 失效
标题翻译：用于磁共振应用的多层谐振器，具有允许在主动操作期间相等幅度电流的电路
公开(公告)号：US07579835B2
公开(公告)日：2009-08-25
申请号：US11606162
申请日：2006-11-28
申请人： Wilfried Schnell , Markus Vester
发明人： Wilfried Schnell , Markus Vester
IPC分类号： G01V3/00 , H01P7/08
CPC分类号： G01R33/34 , G01R33/341
摘要： A resonator for magnetic resonance applications has a conductor element that extends from a first conductor end to a second conductor end. During operation of the conductor element at a resonance frequency, a resonance current-oscillates from the first conductor end to the second conductor end and back. The conductor ends are coupled with one another via a circuit that tunes the conductor element to the resonance frequency. The conductor element is fashioned as a multi-layer conductor with a number of layers that have first and second layer ends at the conductor ends. The circuit causes layer currents that are of equal magnitudes to flow in the layers themselves during active operation of the conductor element at the resonance frequency.
摘要翻译：用于磁共振应用的谐振器具有从第一导体端延伸到第二导体端的导体元件。在谐振频率下的导体元件的操作期间，谐振电流从第一导体端向第二导体末端和背面振荡。导体端通过将导体元件调谐到谐振频率的电路相互耦合。导体元件被形成为具有多个层的多层导体，其在导体端具有第一和第二层端。该电路使得在谐振频率下在导体元件的有效操作期间，具有相等幅度的层电流在层本身中流动。

2. 发明授权

US09817089B2 MRI antenna coil selection unit within patient table cable duct 有权
公开(公告)号：US09817089B2
公开(公告)日：2017-11-14
申请号：US13722606
申请日：2012-12-20
申请人： Stephan Biber , Jan Bollenbeck , Ralph Oppelt , Georg Rauh , Wilfried Schnell , Markus Vester
发明人： Stephan Biber , Jan Bollenbeck , Ralph Oppelt , Georg Rauh , Wilfried Schnell , Markus Vester
IPC分类号： G01R33/30 , G01R33/3415 , G01R33/36 , G01R33/563
CPC分类号： G01R33/30 , G01R33/3415 , G01R33/3664 , G01R33/56383
摘要： A selection unit for a magnetic resonance imaging system may be provided. The selection unit electrically connects a first number of electrical terminals to a second number of communication entities. The selection unit is arranged in and/or on a mobile object-support element for moving an examination object which is to be depicted by the magnetic resonance imaging system into a recording position.

3. 发明授权

US07808243B2 Circulator and magnetic resonance device 有权
标题翻译：循环器和磁共振器
公开(公告)号：US07808243B2
公开(公告)日：2010-10-05
申请号：US12281494
申请日：2007-01-22
申请人： Peter Feld , Georg Rauh , Wilfried Schnell , Markus Vester
发明人： Peter Feld , Georg Rauh , Wilfried Schnell , Markus Vester
IPC分类号： G01V3/00
CPC分类号： H01P1/383
摘要： A circulator has a ferrite, and the circulator is arranged in the vicinity of a device that produces a static magnetic field in the environment surrounding the device, this static magnetic field giving the circulator a non-reciprocal behavior, with respect to circulation of energy among the gates of the circulator, as a result of interaction of the ferrite with the static magnetic field. A magnetic resonance apparatus embodies such a circulator, and the basic field magnet of this magnetic resonance apparatus generates the static magnetic field.
摘要翻译：循环器具有铁氧体，并且循环器布置在围绕设备的环境中产生静态磁场的装置附近，该静磁场相对于循环器中的能量循环而产生不可逆的行为由于铁氧体与静磁场的相互作用，循环器的栅极。磁共振装置体现这种环行器，并且该磁共振装置的基本场磁体产生静磁场。

4. 发明授权

US07579836B2 Multi-layer resonator for magnetic resonance applications with the resonator structure itself allowing equal magnitude current during active operation 有权
标题翻译：用于磁共振应用的多层谐振器，其谐振器结构本身在主动操作期间允许相等幅度的电流
公开(公告)号：US07579836B2
公开(公告)日：2009-08-25
申请号：US11994019
申请日：2007-01-30
申请人： Wilfried Schnell , Markus Vester
发明人： Wilfried Schnell , Markus Vester
IPC分类号： G01V3/00 , H01P7/08
CPC分类号： G01R33/345 , G01R33/3642
摘要： A resonator for magnetic resonance applications has a conductor element proceeding in an extension direction, that operates with a resonance current at a resonance frequency oscillating therein in the extension direction. The conductor element is tuned to the resonance frequency and has an overall length in the extension direction that is smaller than half of the wavelength of the resonance frequency. The conductor element is a multi-layer conductor with layers that are electrically insulated from each other that, in said extension direction, have layer ends that are capacitively coupled with each other. During operation of the conductor element at the resonance frequency, respective layer currents flow in the layers in the extension direction that are substantially equal in magnitude.
摘要翻译：用于磁共振应用的谐振器具有沿延伸方向前进的导体元件，其以在延伸方向上振荡的谐振频率的谐振电流工作。导体元件被调谐到谐振频率，并且在延伸方向上的总长度小于谐振频率波长的一半。导体元件是具有彼此电绝缘的层的多层导体，其在所述延伸方向上具有彼此电容耦合的层端。在谐振频率下的导体元件工作期间，各层电流在延伸方向的层中流动，其大小基本相等。

5. 发明申请

US20090146660A1 MAGNETIC RESONANCE SYSTEM WITH POWER LOSS-OPTIMIZED OPERATION 有权
标题翻译：具有动力优化操作的磁共振系统
公开(公告)号：US20090146660A1
公开(公告)日：2009-06-11
申请号：US12332617
申请日：2008-12-11
申请人： Wilfried Schnell , Markus Vester
发明人： Wilfried Schnell , Markus Vester
IPC分类号： G01R33/20
CPC分类号： G01R33/5612 , G01R33/288 , G01R33/3415 , G01R33/3607
摘要： A magnetic resonance system has multiple individual transmission antennas each charged with a transmission current to emit an individual excitation field in an examination volume to excite magnetic resonances in a subject in the examination volume, with a total excitation field being a superimposition of the individual excitation fields. A determination device is provided with a spatial distribution of an absorption rate of the examination subject and determines a combination of amplitudes and phase positions for the transmission currents relative to one another such that a locally absorbed power at a first point of the examination subject relative to a locally absorbed power at a second point of the examination subject satisfies a relative condition. The determination device communicates the combination of amplitudes and phase positions that it has determined to a control device. The control device charges the transmission antennas with transmission currents whose phase positions correspond with the phase positions communicated by the determination device and whose amplitudes are scaled with a uniform scaling factor for all transmission currents relative to the amplitudes communicated by the determination device.
摘要翻译：磁共振系统具有多个单独的发射天线，每个发射天线都充满了传输电流，以在检查体积中发射单独的激发场，以激发检查体积中的受检者的磁共振，总激励场是各个激励场的叠加。确定装置被提供有检查对象的吸收率的空间分布，并确定相对于彼此的传输电流的幅度和相位位置的组合，使得在检查对象的第一点处的局部吸收功率相对于在检查对象的第二点处的局部吸收力满足相对条件。确定装置将其已经确定的幅度和相位位置的组合传送到控制装置。控制装置用发射电流对发射天线进行充电，其相位位置对应于由确定装置传送的相位位置，并且其幅度以相对于由确定装置传送的振幅的所有发射电流的均匀缩放因子缩放。

6. 发明申请

US20080197922A1 AMPLIFIER DEVICE FOR AN ANTENNA OPERABLE IN AT LEAST ONE MODE 有权
标题翻译：用于天线的放大器装置可以在一个模式下运行
公开(公告)号：US20080197922A1
公开(公告)日：2008-08-21
申请号：US11766833
申请日：2007-06-22
申请人： Wilfried Schnell , Markus Vester
发明人： Wilfried Schnell , Markus Vester
IPC分类号： H03F3/68 , H01Q21/00
CPC分类号： H01Q3/40 , H01Q25/00 , H03F3/602
摘要： An amplifier device for a mode antenna has a number of amplifiers and a number of outputs. An input signal is fed to each amplifier, which is amplified by the respective amplifier into an amplified input signal. The amplified input signals are fed to an output matrix arranged after the amplifiers. Respective output signals are emitted by the output matrix at the outputs. The output matrix causes each amplified input signal to supply an output signal contribution for each output signal. Each output signal contribution of each output signal has an output-side contribution offset in relation to the corresponding amplified input signal, which depends on the amplified input signal that supplied the output signal contribution, and the output signal to which the output signal contribution contributes. The amplifier device is especially able to be used in a transmit arrangement for radio-frequency signals.
摘要翻译：用于模式天线的放大器装置具有多个放大器和多个输出。输入信号被馈送到每个放大器，其由相应的放大器放大成放大的输入信号。放大的输入信号被馈送到布置在放大器之后的输出矩阵。各输出信号由输出矩阵输出。输出矩阵使得每个放大的输入信号为每个输出信号提供输出信号贡献。每个输出信号的每个输出信号贡献具有相对于对应的放大输入信号的输出侧贡献偏移，其取决于提供输出信号贡献的放大输入信号和输出信号贡献贡献的输出信号。放大器装置特别能够用于射频信号的发送装置。

7. 发明授权

US07119543B2 Generator device for generating a magnetic resonance excitation signal 有权
标题翻译：用于产生磁共振激励信号的发生器装置
公开(公告)号：US07119543B2
公开(公告)日：2006-10-10
申请号：US10909794
申请日：2004-07-30
申请人： Adam Albrecht , Horst Kröckel , Wilfried Schnell , Markus Vester
发明人： Adam Albrecht , Horst Kröckel , Wilfried Schnell , Markus Vester
IPC分类号： G01V3/00
CPC分类号： G01R33/3607 , G01R33/3614
摘要： A generator device for a magnetic resonance excitation signal has a signal divider that divides an input signal supplied to it via an input element into at least two sub-signals and supplies them to amplification stages. The amplification stages amplify the respective sub-signals to produce amplified signals and supply the amplified signals to a signal combiner that combines them to form an aggregate signal, which is made externally available via an output element. Sensor devices that precede the signal divider and the signal combiner, acquire a reference signal that corresponds to the input signal and actual signals that correspond to the amplified signals and supply them to a control device. The control device acts on at least one of the amplification stages to cause the amplified signals to exhibit a predetermined amplitude ratio and a predetermined phase relation relative to one another.
摘要翻译：用于磁共振激励信号的发生器装置具有信号分配器，其将经由输入元件提供给其的输入信号分成至少两个子信号并将其提供给放大级。放大级放大相应的子信号以产生放大的信号，并将放大的信号提供给组合它们的信号组合器，以形成聚合信号，该信号通过输出元件在外部可用。在信号分频器和信号组合器之前的传感器装置，获取对应于输入信号的参考信号和对应于放大信号的实际信号并将其提供给控制装置。控制装置作用于至少一个放大级，以使放大的信号相对于彼此呈现预定的幅度比和预定的相位关系。

8. 发明申请

US20050046476A1 Generation device for a magnetic resonance excitation signal 有权
标题翻译：用于磁共振激励信号的发生装置
公开(公告)号：US20050046476A1
公开(公告)日：2005-03-03
申请号：US10909794
申请日：2004-07-30
申请人： Adam Albrecht , Horst Krockel , Wilfried Schnell , Markus Vester
发明人： Adam Albrecht , Horst Krockel , Wilfried Schnell , Markus Vester
IPC分类号： G01R33/20 , A61B5/055 , G01R33/36 , H03F3/68
CPC分类号： G01R33/3607 , G01R33/3614
摘要： A generation device for a magnetic resonance excitation signal has a signal divider that divides an input signal supplied to it via an input element into at least two sub-signals and supplies them to amplification stages. The amplification stages amplify the respective sub-signals to produce signals and supply the amplified signals to a signal combiner that combines them to form an aggregate signal, which is made externally available via an output element. Sensor devices that precede the signal divider and the signal combiner, acquire a reference signal that corresponds to the input signal and actual signals that correspond to the amplified signals and supply them to a control device. The control device acts on at least one of the amplification stages to cause the amplified signals to exhibit a predetermined amplitude ratio and a predetermined phase relation relative to one another.
摘要翻译：用于磁共振激励信号的发生装置具有信号分配器，其将经由输入元件提供给其的输入信号分成至少两个子信号，并将其提供给放大级。放大级放大相应的子信号以产生信号，并将放大的信号提供给组合它们的信号组合器，以形成聚合信号，该信号通过输出元件在外部可用。在信号分频器和信号组合器之前的传感器装置，获取对应于输入信号的参考信号和对应于放大信号的实际信号并将其提供给控制装置。控制装置作用于至少一个放大级，以使放大的信号相对于彼此呈现预定的幅度比和预定的相位关系。

9. 发明申请

US20050035762A1 TRANSMISSION ARRANGEMENT FOR A MAGNETIC RESONANCE APPARATUS 有权
标题翻译：磁性共振装置的传动装置
公开(公告)号：US20050035762A1
公开(公告)日：2005-02-17
申请号：US10903643
申请日：2004-07-30
申请人： Adam Albrecht , Horst Krockel , Wilfried Schnell , Markus Vester
发明人： Adam Albrecht , Horst Krockel , Wilfried Schnell , Markus Vester
IPC分类号： G01R33/36 , G01V3/00
CPC分类号： G01R33/3614
摘要： In a transmission arrangement for a magnetic resonance apparatus, a high-frequency input signal, via an input terminal is supplied to a high-frequency power amplifier. The amplifier amplifies the input signal with from a high-frequency output signal and supplies it to an antenna arrangement that emits it as a magnetic resonance excitation signal. Directional couplers are respectively connected between the input terminal and the amplifier and between the amplifier and the antenna arrangement. The acquired signals are supplied to an amplitude controller that drives an amplitude regulator preceding the high-frequency power amplifier.
摘要翻译：在用于磁共振装置的传输装置中，经由输入端子的高频输入信号被提供给高频功率放大器。放大器利用高频输出信号放大输入信号，并将其提供给发射为磁共振激励信号的天线装置。方向耦合器分别连接在输入端子和放大器之间以及放大器和天线装置之间。所获取的信号被提供给驱动高频功率放大器之前的幅度调节器的振幅控制器。

10. 发明授权

US07761070B2 Amplifier device for an antenna operable in at least one mode 有权
标题翻译：用于天线的放大器装置，可在至少一种模式下操作
公开(公告)号：US07761070B2
公开(公告)日：2010-07-20
申请号：US11766833
申请日：2007-06-22
申请人： Wilfried Schnell , Markus Vester
发明人： Wilfried Schnell , Markus Vester
IPC分类号： H04Q11/12 , H04B1/06
CPC分类号： H01Q3/40 , H01Q25/00 , H03F3/602
摘要： An amplifier device for a mode antenna has a number of amplifiers and a number of outputs. An input signal is fed to each amplifier, which is amplified by the respective amplifier into an amplified input signal. The amplified input signals are fed to an output matrix arranged after the amplifiers. Respective output signals are emitted by the output matrix at the outputs. The output matrix causes each amplified input signal to supply an output signal contribution for each output signal. Each output signal contribution of each output signal has an output-side contribution offset in relation to the corresponding amplified input signal, which depends on the amplified input signal that supplied the output signal contribution, and the output signal to which the output signal contribution contributes. The amplifier device is especially able to be used in a transmit arrangement for radio-frequency signals.
摘要翻译：用于模式天线的放大器装置具有多个放大器和多个输出。输入信号被馈送到每个放大器，其由相应的放大器放大成放大的输入信号。放大的输入信号被馈送到布置在放大器之后的输出矩阵。各输出信号由输出矩阵输出。输出矩阵使得每个放大的输入信号为每个输出信号提供输出信号贡献。每个输出信号的每个输出信号贡献具有相对于对应的放大输入信号的输出侧贡献偏移，其取决于提供输出信号贡献的放大输入信号和输出信号贡献贡献的输出信号。放大器装置特别能够用于射频信号的发送装置。

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