公开(公告)号：US10379180B2

公开(公告)日：2019-08-13

申请号：US14539782

申请日：2014-11-12

Applicant: Stephan Biber ,  Helmut Greim ,  Klaus Huber ,  Sebastian Martius ,  Johanna Dorothee Schöpfer

Inventor： Stephan Biber ,  Helmut Greim ,  Klaus Huber ,  Sebastian Martius ,  Johanna Dorothee Schöpfer

IPC: G01V3/00 ,  G01R33/341 ,  G01R33/3415

Abstract: The transmission antenna apparatus is configured for emitting transmission magnetic fields in magnetic resonance imaging devices and includes one or more flat antennas. A magnetic resonance imaging device includes such a transmission antenna apparatus.

公开(公告)号：US09791527B2

公开(公告)日：2017-10-17

申请号：US14319126

申请日：2014-06-30

Applicant: Helmut Greim

Inventor： Helmut Greim

IPC: G01V3/00 ,  G01R33/385 ,  G01R33/36 ,  A61B5/055 ,  G01R33/341

CPC classification number: G01R33/385 ,  A61B5/055 ,  G01R33/341 ,  G01R33/3642

Abstract: A local coil for an MRI imaging system includes an antenna containing a first detuning circuit and a second detuning circuit, and a connection connected to the antenna between a first connection point on the antenna and a second connection point on the antenna. The connection is configured to be short-circuited by at least one diode. The first connection point and the second connection point are situated spatially between a first partial region and a second partial region of the antenna.

公开(公告)号：US09513351B2

公开(公告)日：2016-12-06

申请号：US13618635

申请日：2012-09-14

Applicant: Stephan Biber ,  Daniel Driemel ,  Helmut Greim ,  Steffen Wolf

Inventor： Stephan Biber ,  Daniel Driemel ,  Helmut Greim ,  Steffen Wolf

IPC: G01R33/36 ,  G01R33/3415 ,  G01R33/34

CPC classification number: G01R33/3642 ,  G01R33/34007 ,  G01R33/3415

Abstract: A magnetic resonance coil for transmitting and/or receiving magnetic resonance signals is provided. The magnetic resonance coil includes at least two overlapping coil elements. Coil conductors of the at least two overlapping coil elements intersect in intersection regions and are arranged on a support. Mutually overlapping coil elements of the at least two overlapping coil elements are arranged on different sides of the support. The support is formed from at least three layers of a support material. A cavity that is filled with air or a filler material, the dielectric constant of the filler material being lower than the dielectric constant of the support material, is provided in the intersection regions in a middle layer of the at least three layers.

Abstract translation: 提供用于发送和/或接收磁共振信号的磁共振线圈。 磁共振线圈包括至少两个重叠的线圈元件。 所述至少两个重叠的线圈元件的线圈导体在交叉区域相交并且布置在支撑件上。 所述至少两个重叠的线圈元件的相互重叠的线圈元件布置在所述支撑件的不同侧上。 支撑体由至少三层的支撑材料形成。 在至少三层的中间层的交叉区域中设置填充有空气或填充材料的空腔，填充材料的介电常数低于载体材料的介电常数。

公开(公告)号：US09244141B2

公开(公告)日：2016-01-26

申请号：US13553623

申请日：2012-07-19

Applicant: Helmut Greim

Inventor： Helmut Greim

IPC: G01R33/422 ,  G01R33/36 ,  G01R33/28 ,  G01R33/34 ,  G01R33/3415

CPC classification number: G01R33/422 ,  G01R33/283 ,  G01R33/34046 ,  G01R33/3415 ,  G01R33/3685

Abstract: A local coil for an imaging system includes a sheath current filter and one or more lines run through the sheath current filter.

Abstract translation: 用于成像系统的局部线圈包括护套电流滤波器和穿过鞘电流滤波器的一条或多条线。

公开(公告)号：US20150025362A1

公开(公告)日：2015-01-22

申请号：US14337728

申请日：2014-07-22

Applicant: Stephan Biber ,  Hubertus Fischer ,  Helmut Greim

Inventor： Stephan Biber ,  Hubertus Fischer ,  Helmut Greim

IPC: G01R33/34

CPC classification number: G01R33/34 ,  G01R33/3415

Abstract: A spine coil for a magnetic resonance imaging device includes at least one transmission coil element configured for transmission.

Abstract translation: 用于磁共振成像装置的脊线圈包括配置成用于传输的至少一个传输线圈元件。

公开(公告)号：US08766637B2

公开(公告)日：2014-07-01

申请号：US13183771

申请日：2011-07-15

Applicant: Daniel Driemel ,  Helmut Greim ,  Martin Hemmerlein ,  Thomas Kundner ,  Steffen Wolf

Inventor： Daniel Driemel ,  Helmut Greim ,  Martin Hemmerlein ,  Thomas Kundner ,  Steffen Wolf

IPC: G01V3/00

CPC classification number: G01R33/3685

Abstract: A standing wave trap for a magnetic resonance tomography system includes a local coil connecting lead and at least one flexible printed circuit board in the local coil connecting lead. The local coil connecting lead is wound.

Abstract translation: 用于磁共振断层摄影系统的驻波陷阱包括本地线圈连接引线和本地线圈连接引线中的至少一个柔性印刷电路板。 本地线圈连接引线是缠绕的。

公开(公告)号：US07876097B2

公开(公告)日：2011-01-25

申请号：US12266714

申请日：2008-11-07

Applicant: Helmut Greim

Inventor： Helmut Greim

IPC: G01V3/00

CPC classification number: A61B5/055 ,  G01R33/288 ,  G01R33/3415 ,  G01R33/3664

Abstract: A local coil arrangement for a magnetic resonance apparatus has a support structure with an antenna arrangement and a sensor arrangement embedded in the support structure. The antenna arrangement has a number of magnetic resonance antennas. A magnetic resonance excitation signal can respectively be emitted by means of each magnetic resonance antenna and/or a magnetic resonance signal can respectively be received by means of each magnetic resonance antenna. The sensor arrangement has a number of magnetic field sensors and an evaluation circuit. The magnetic field sensors detect how large a static magnetic field is to which the local coil arrangement is exposed and output a corresponding output signal and supply a corresponding output signal to the evaluation circuit. The evaluation circuit determines a logical presence signal and outputs it. The value of the logical presence signal depends on whether a field strength of the static magnetic field is greater than a minimum field strength.

Abstract translation: 用于磁共振装置的本地线圈装置具有支撑结构，其具有嵌入在支撑结构中的天线装置和传感器装置。 天线装置具有多个磁共振天线。 可以分别通过每个磁共振天线发射磁共振激励信号和/或分别通过每个磁共振天线接收磁共振信号。 传感器装置具有多个磁场传感器和评估电路。 磁场传感器检测局部线圈装置暴露的静态磁场有多大，并输出相应的输出信号，并将相应的输出信号提供给评估电路。 评估电路确定逻辑存在信号并输出​​。 逻辑存在信号的值取决于静态磁场的场强是否大于最小场强。

公开(公告)号：US07639011B2

公开(公告)日：2009-12-29

申请号：US12046837

申请日：2008-03-12

Applicant: Yvonne Candidus ,  Helmut Greim ,  Markus Vester ,  Steffen Wolf

Inventor： Yvonne Candidus ,  Helmut Greim ,  Markus Vester ,  Steffen Wolf

IPC: G01V3/00

CPC classification number: G01R33/28 ,  G01R33/5659

Abstract: A field distribution correction element for positioning on an examination subject in a magnetic resonance system for local influencing of the radio-frequency field distribution during a magnetic resonance acquisition has a system of electrically conductive dipole strips essentially running in parallel, arranged on a carrier element. In a corresponding method for generation of magnetic resonance exposures of an examination subject in a magnetic resonance system, for local influencing of the radio-frequency field distribution, such a field distribution correction element is positioned on the patient.

Abstract translation: 用于定位在磁共振系统中的检查对象的场分布校正元件，用于在磁共振采集期间局部影响射频场分布，具有布置在载体元件上的基本上并行运行的导电偶极子带的系统。 在用于产生磁共振系统中的检查对象的磁共振曝光的相应方法中，对于射频场分布的局部影响，这种场分布校正元件位于患者身上。

公开(公告)号：US07550973B2

公开(公告)日：2009-06-23

申请号：US12052835

申请日：2008-03-21

Applicant: Helmut Greim ,  Steffen Wolf

Inventor： Helmut Greim ,  Steffen Wolf

IPC: G01V3/00

CPC classification number: G01R33/583 ,  G01R33/246 ,  G01R33/341 ,  G01R33/3642 ,  G01R33/3664 ,  G01R33/422 ,  G01R33/5612 ,  G01R33/5659

Abstract: In a method and arrangement for local manipulation of a B1 field in a first region of an examination subject in an examination volume of a magnetic resonance system, a B1 measurement value that represents the B1 field in the sub-volume during an adjustment measurement is integrally determined, and in desired radio-frequency signal parameters for a subsequent magnetic resonance measurement are predetermined on the basis of the determined B1 measurement value. At least during the adjustment measurement, the B1 field is influenced within a second region counter to the manipulation intended in the first region by means of an auxiliary coil element which is arranged in or at the second region of the sub-volume remote from the first region.

Abstract translation: 在用于在磁共振系统的检查体积中的检查对象的第一区域中的B1场的局部操作的方法和装置中，在调整测量期间表示子体积中的B1场的B1测量值是一体的 并且根据所确定的B1测量值预定用于随后的磁共振测量的期望的射频信号参数。 至少在调整测量期间，借助于辅助线圈元件，B1区域在与第一区域中的操作相反的第二区域内受到影响，该辅助线圈元件布置在远离第一区域的子体积的第二区域中或其中 地区。

公开(公告)号：US20080143333A1

公开(公告)日：2008-06-19

申请号：US11950655

申请日：2007-12-05

Applicant: Helmut Greim ,  Martin Hemmerlein

Inventor： Helmut Greim ,  Martin Hemmerlein

IPC: G01R33/36

CPC classification number: G01R33/3415 ,  G01R33/34007 ,  G01R33/365 ,  G01R33/481

Abstract: An array antenna for magnetic resonance applications has at least one first and one second conductor loop in which radio-frequency currents oscillate in respective current flow directions in the operation of the array antenna. The respective conductor loops are divided into first or second loop segments in their respective current flow directions. The first loop segments are capacitively coupled with one another by first capacitors, the second loop segments are capacitively coupled with one another of second capacitors. The loop segments are fashioned as conductor traces of a circuit board that has at least one first and one second electrically insulating support layer. The support layers abut one another with the exception of conductor traces arranged between the first support layer and the second support layer. The capacitors are respectively formed by end regions of the first or second loop segments abutting one another as viewed in the respective current flow direction. The end regions overlap as viewed in the respective current flow direction. Exactly one of the support layers is between the overlapping end regions of the loop segments. The first and the second conductor loops intersect in intersection regions. Neither the a loop segments of the first conductor loop nor a loop segments of the second conductor loop are arranged between the first support layer and the second support layer in the intersection regions.

Abstract translation: 用于磁共振应用的阵列天线具有至少一个第一和第二导体回路，其中射频电流在阵列天线的操作中在各自的电流流动方向上振荡。 相应的导体环在它们各自的电流流动方向上分成第一或第二环段。 第一环路段通过第一电容器彼此电容耦合，第二环路段与另一个第二电容器电容耦合。 环路段被形成为具有至少一个第一和一个第二电绝缘支撑层的电路板的导体迹线。 除了布置在第一支撑层和第二支撑层之间的导体迹线之外，支撑层彼此邻接。 电容器分别由在相应的电流流动方向观察的第一或第二环路段彼此邻接的端部区域形成。 端部区域在相应的电流流动方向上看重叠。 其中一个支撑层位于环段的重叠端部区域之间。 第一和第二导体环在相交区域相交。 第一导体环路的环路段和第二导体环路的环路段都不布置在交叉区域中的第一支撑层和第二支撑层之间。