公开(公告)号：US20160320465A1

公开(公告)日：2016-11-03

申请号：US15131201

申请日：2016-04-18

申请人： Klaus Huber ,  Robert Rehner ,  Markus Vester

发明人： Klaus Huber ,  Robert Rehner ,  Markus Vester

IPC分类号： G01R33/36

CPC分类号： G01R33/3657 ,  G01R33/341

摘要： An arrangement for detuning a receive antenna, a detunable magnetic resonance coil, and a magnetic resonance device having a detunable magnetic resonance coil are provided. The arrangement includes a receive antenna having at least one first capacitance, wherein radiofrequency signals from a magnetic resonance examination may be received by way of the receive antenna. The arrangement furthermore includes a switchable detuning circuit containing the first capacitance switched to form an oscillating circuit and a first inductance, and a switching device having a first and a second connection point to deliver a voltage between the first and a second connection point, and one or more transistors. The switching device switches the oscillating circuit to a high impedance level with aid of the one or more transistors on delivery of a positive voltage to the first connection point, preventing a radiofrequency signal from being received by way of the receive antenna.

摘要翻译： 提供了一种用于使接收天线失谐的装置，不可恢复的磁共振线圈和具有不可恢复的磁共振线圈的磁共振装置。 该装置包括具有至少一个第一电容的接收天线，其中可以通过接收天线接收来自磁共振检查的射频信号。 该装置还包括可切换的失谐电路，其包含切换以形成振荡电路的第一电容和第一电感，以及具有第一和第二连接点以在第一和第二连接点之间传递电压的开关装置，以及一个 或更多的晶体管。 开关装置在将正电压传送到第一连接点的同时，通过一个或多个晶体管的帮助将振荡电路切换到高阻抗水平，防止射频信号通过接收天线被接收。

公开(公告)号：US10145912B2

公开(公告)日：2018-12-04

申请号：US15131201

申请日：2016-04-18

申请人： Klaus Huber ,  Robert Rehner ,  Markus Vester

发明人： Klaus Huber ,  Robert Rehner ,  Markus Vester

IPC分类号： G01R33/36 ,  G01R33/341

摘要： An arrangement for detuning a receive antenna, a detunable magnetic resonance coil, and a magnetic resonance device having a detunable magnetic resonance coil are provided. The arrangement includes a receive antenna having at least one first capacitance, wherein radiofrequency signals from a magnetic resonance examination may be received by way of the receive antenna. The arrangement furthermore includes a switchable detuning circuit containing the first capacitance switched to form an oscillating circuit and a first inductance, and a switching device having a first and a second connection point to deliver a voltage between the first and a second connection point, and one or more transistors. The switching device switches the oscillating circuit to a high impedance level with aid of the one or more transistors on delivery of a positive voltage to the first connection point, preventing a radiofrequency signal from being received by way of the receive antenna.

公开(公告)号：US09841474B2

公开(公告)日：2017-12-12

申请号：US13221652

申请日：2011-08-30

申请人： Klaus Huber ,  Clemens Jungkunz ,  Sebastian Martius ,  Martin Nisznansky ,  Markus Vester

发明人： Klaus Huber ,  Clemens Jungkunz ,  Sebastian Martius ,  Martin Nisznansky ,  Markus Vester

IPC分类号： H04L27/00 ,  G01R33/36

CPC分类号： G01R33/3607

摘要： A method for controlling a signal with a plurality of independent components is provided. The signal is fed as an input signal via an input path to a control path that supplies an output signal. The output signal is fed via an output path to a control apparatus controlling the input signal. A coupling signal is determined in a coupling determination apparatus. On the basis of the coupling signal, the independent components are decoupled in a decoupling apparatus, as a result of which, a decoupled output signal is generated. Components of the decoupled output signal are decoupled from the components of the input signal. The decoupled output signal is fed as a control variable to the control apparatus. The control apparatus controls each independent component separately on the basis of a desired signal with a diagonal controller and outputs the input signal as a manipulated variable.

公开(公告)号：US09784811B2

公开(公告)日：2017-10-10

申请号：US14349419

申请日：2012-09-12

申请人： Chih-Chung Chen ,  Klaus Huber ,  Johannes Reinschke ,  Claus Seisenberger ,  Markus Vester ,  Christian Wünsch

发明人： Chih-Chung Chen ,  Klaus Huber ,  Johannes Reinschke ,  Claus Seisenberger ,  Markus Vester ,  Christian Wünsch

IPC分类号： G01R33/54 ,  G01R33/36 ,  A61B5/055 ,  A61B5/00

CPC分类号： G01R33/543 ,  A61B5/055 ,  A61B5/7225 ,  A61B5/7271 ,  G01R33/3614 ,  G01R33/365

摘要： A two-channel magnetic resonance tomography system is provided with a regulation circuit for an amplification system in order to be able to take into account different load situations of the MRI system in a flexible and efficient manner. It is thus possible to improve the MRI measurements greatly if the MRI system is set to the respective load situation beforehand by an idle state measurement. The adaptation may optionally also be carried out during the MRI measurement. Therefore, a multiplicity of completely different load situations may be taken into account in an optimized manner by the regulation circuit.

公开(公告)号：US20170219667A1

公开(公告)日：2017-08-03

申请号：US15422136

申请日：2017-02-01

申请人： Andreas Fackelmeier ,  Klaus Huber ,  Sebastian Martius ,  Ralph Oppelt ,  Markus Vester

发明人： Andreas Fackelmeier ,  Klaus Huber ,  Sebastian Martius ,  Ralph Oppelt ,  Markus Vester

IPC分类号： G01R33/36 ,  G01R33/30

CPC分类号： G01R33/3685 ,  G01R33/30

摘要： A line with a standing wave trap for a magnetic resonance tomograph, and a patient couch and a magnetic resonance tomograph with the line are provided. The line includes a carrier material, a first conductor track that extends along the carrier material in the carrier material or on the carrier material, and a first conductor loop. The first conductor loop is arranged on or in the carrier material. The first conductor loop has a signal coupling to the first conductor track. The first conductor loop has a first interruption that is bridged with a first capacitance.

公开(公告)号：US10145918B2

公开(公告)日：2018-12-04

申请号：US13784797

申请日：2013-03-04

申请人： Nikolaus Demharter ,  Klaus Huber ,  Claus Seisenberger ,  Thorsten Speckner ,  Markus Vester ,  Christian Wünsch

发明人： Nikolaus Demharter ,  Klaus Huber ,  Claus Seisenberger ,  Thorsten Speckner ,  Markus Vester ,  Christian Wünsch

IPC分类号： G01R33/54 ,  G01R33/36

摘要： A method for emitting a sequence of high frequency pulses that may have different envelopes in a magnetic resonance tomography system is provided. A digital instruction signal that specifies the envelope for the high frequency pulses that are to be emitted is received. A digital control signal is transmitted to a high frequency unit for generating high frequency pulses, depending on the instruction signal. A test signal that allows notification of a current overload situation is received. The current control signal is reduced if the test signal indicates an overload situation.

公开(公告)号：US20120249148A1

公开(公告)日：2012-10-04

申请号：US13436576

申请日：2012-03-30

申请人： Daniel Evers ,  Klaus Huber ,  Florian Poprawa ,  Christina Schindler ,  Markus Vester ,  Jörg Zapf

发明人： Daniel Evers ,  Klaus Huber ,  Florian Poprawa ,  Christina Schindler ,  Markus Vester ,  Jörg Zapf

IPC分类号： G01R33/34 ,  H01F41/04

CPC分类号： G01R33/422 ,  G01R33/3415 ,  G01R33/3621 ,  G01R33/3692

摘要： The present embodiments relate to a magnetic resonance local coil with a receive antenna for receiving magnetic resonance signals. The magnetic resonance local coil also includes a transmission unit for transmitting magnetic resonance signal data generated on the basis of the magnetic resonance signals via a data transmit antenna of the magnetic resonance local coil to a signal data receiving unit of a magnetic resonance tomography systems. The transmission unit is provided, at least in sections, with screening with a first metal coating and a first dielectric coating.

摘要翻译： 本实施例涉及具有用于接收磁共振信号的接收天线的磁共振局部线圈。 磁共振局部线圈还包括传输单元，用于将通过磁共振局部线圈的数据发射天线的磁共振信号产生的磁共振信号数据发送到磁共振断层摄影系统的信号数据接收单元。 传动单元至少在分段上设置有第一金属涂层和第一介电涂层的筛选。

公开(公告)号：US20120224647A1

公开(公告)日：2012-09-06

申请号：US13221652

申请日：2011-08-30

申请人： Klaus Huber ,  Clemens Jungkunz ,  Sebastian Martius ,  Martin Nisznansky ,  Markus Vester

发明人： Klaus Huber ,  Clemens Jungkunz ,  Sebastian Martius ,  Martin Nisznansky ,  Markus Vester

IPC分类号： H04L27/00

CPC分类号： G01R33/3607

摘要： A method for controlling a signal with a plurality of independent components is provided. The signal is fed as an input signal via an input path to a control path that supplies an output signal. The output signal is fed via an output path to a control apparatus controlling the input signal. A coupling signal is determined in a coupling determination apparatus. On the basis of the coupling signal, the independent components are decoupled in a decoupling apparatus, as a result of which, a decoupled output signal is generated. Components of the decoupled output signal are decoupled from the components of the input signal. The decoupled output signal is fed as a control variable to the control apparatus. The control apparatus controls each independent component separately on the basis of a desired signal with a diagonal controller and outputs the input signal as a manipulated variable.

摘要翻译： 提供了一种用多个独立部件控制信号的方法。 信号通过输入路径作为输入信号馈送到提供输出信号的控制路径。 输出信号通过输出路径馈送到控制输入信号的控制装置。 在耦合确定装置中确定耦合信号。 在耦合信号的基础上，独立分量在去耦装置中解耦，其结果是产生解耦输出信号。 去耦输出信号的分量与输入信号的分量去耦。 去耦输出信号作为控制变量馈送给控制装置。 控制装置基于具有对角线控制器的期望信号分别控制各独立分量，并输出输入信号作为操作变量。

公开(公告)号：US10722151B2

公开(公告)日：2020-07-28

申请号：US14706744

申请日：2015-05-07

申请人： Stephan Biber ,  Andreas Fackelmeier ,  Klaus Huber ,  Robert Rehner

发明人： Stephan Biber ,  Andreas Fackelmeier ,  Klaus Huber ,  Robert Rehner

IPC分类号： A61B5/11 ,  G01R33/32 ,  G01V3/00 ,  G01S13/02 ,  G01R33/36 ,  G01R33/28 ,  A61B5/08 ,  A61B5/055 ,  A61B5/00 ,  A61B5/05 ,  G01S13/88 ,  G01S13/52 ,  G01V3/175 ,  G01R33/567 ,  G01R33/34

摘要： A magnetic resonance device includes a radiofrequency unit that includes a radiofrequency antenna, at least one radiofrequency line and at least one radiofrequency injection point. Radiofrequency signals are transferred to the radiofrequency antenna by the at least one radiofrequency line and are coupled into the radiofrequency antenna at the at least one radiofrequency injection point. The magnetic resonance device also includes a patient receiving zone that is at least partially enclosed by the radiofrequency antenna, and a motion detection unit for detecting a movement of a patient that may be positioned within the patient receiving zone. At least one radiofrequency line includes at least one injection element by which at least one motion detection signal of the motion detection unit is coupled into the radiofrequency line.

公开(公告)号：US20150320342A1

公开(公告)日：2015-11-12

申请号：US14706744

申请日：2015-05-07

申请人： Stephan Biber ,  Andreas Fackelmeier ,  Klaus Huber ,  Robert Rehner

发明人： Stephan Biber ,  Andreas Fackelmeier ,  Klaus Huber ,  Robert Rehner

IPC分类号： A61B5/11 ,  G01V3/00 ,  G01S13/02 ,  G01R33/32

摘要： A magnetic resonance device includes a radiofrequency unit that includes a radiofrequency antenna, at least one radiofrequency line and at least one radiofrequency injection point. Radiofrequency signals are transferred to the radiofrequency antenna by the at least one radiofrequency line and are coupled into the radiofrequency antenna at the at least one radiofrequency injection point. The magnetic resonance device also includes a patient receiving zone that is at least partially enclosed by the radiofrequency antenna, and a motion detection unit for detecting a movement of a patient that may be positioned within the patient receiving zone. At least one radiofrequency line includes at least one injection element by which at least one motion detection signal of the motion detection unit is coupled into the radiofrequency line.

摘要翻译： 磁共振装置包括射频单元，其包括射频天线，至少一个射频线和至少一个射频注入点。 射频信号由至少一个射频线路传送到射频天线，并且在至少一个射频注入点处耦合到射频天线。 磁共振装置还包括至少部分地由射频天线包围的患者接收区域，以及用于检测可位于患者接收区域内的患者的运动的运动检测单元。 至少一个射频线包括至少一个注入元件，通过该注入元件将运动检测单元的至少一个运动检测信号耦合到射频线中。