公开(公告)号：US06469509B2

公开(公告)日：2002-10-22

申请号：US09981557

申请日：2001-10-16

Applicant: Axel Friedrich ,  Helmut Greim

Inventor： Axel Friedrich ,  Helmut Greim

IPC: G01V300

CPC classification number: G01R33/341 ,  G01R33/288 ,  G01R33/3657

Abstract: An inherently decoupled MR reception coil arrangement for a magnetic resonance imaging tomography system has a number of selectively pluggable local coils, in which the local coils provided with active detuning also have a passive detuning circuit for the transmission phase, and at least one of the local coils has a passive detuning circuit for the reception phase in the unplugged state.

Abstract translation: 用于磁共振成像断层摄影系统的固有解耦的MR接收线圈装置具有多个可选择地可插拔的局部线圈，其中设置有主动失谐的本地线圈也具有用于传输阶段的被动失谐电路，以及至少一个本地线圈 线圈具有用于处于未插拔状态的接收阶段的被动失谐电路。

公开(公告)号：US6114854A

公开(公告)日：2000-09-05

申请号：US84188

申请日：1998-05-26

Applicant: Helmut Greim

Inventor： Helmut Greim

IPC: A61B5/055 ,  G01R33/34 ,  G01V3/00

CPC classification number: G01R33/34046

Abstract: An antenna for an NMR device has a first antenna conductor structure which has two opposite end regions at which an electrical connections are respectively arranged. The antenna conductor structure has two conductor loops of equal size which are arranged essentially adjacently on one surface and which are serially connected with opposite polarity at a junction. The connections are respectively arranged at each conductor loop symmetrically to the junction.

Abstract translation: 用于NMR装置的天线具有第一天线导体结构，其具有分别布置有电连接的两个相对的端部区域。 天线导体结构具有两个相等尺寸的导体环，它们基本相邻地布置在一个表面上，并且在结处以相反的极性串联连接。 这些连接分别布置在每个导体环对称地连接处。

公开(公告)号：US20130119988A1

公开(公告)日：2013-05-16

申请号：US13675938

申请日：2012-11-13

Applicant: Daniel Driemel ,  Helmut Greim ,  Steffen Wolf

Inventor： Daniel Driemel ,  Helmut Greim ,  Steffen Wolf

IPC: G01R33/34

CPC classification number: G01R33/34092 ,  G01R33/34007 ,  G01R33/3415 ,  G01R33/365 ,  G01R33/56518

Abstract: A local coil for a magnetic resonance tomography device includes a plurality of antenna elements. Each antenna element of the plurality of antenna elements has two conductor tracks. The conductor tracks are disposed on opposite sides of an insulator and are connected electrically conductively to one another by plated through-holes through the insulator. In areas, in which conductor tracks of at least two antenna elements of the plurality of antenna elements cross, at least one antenna element of the at least two antenna elements only has a conductor track on one side of the insulator.

Abstract translation: 用于磁共振断层摄影装置的局部线圈包括多个天线元件。 多个天线元件中的每个天线元件具有两个导体轨迹。 导体轨道设置在绝缘体的相对侧上，并且通过穿过绝缘体的电镀通孔彼此导电连接。 在多个天线元件中的至少两个天线元件的导体轨迹交叉的区域中，至少两个天线元件的至少一个天线元件仅在绝缘体的一侧具有导体轨道。

公开(公告)号：US20120223714A1

公开(公告)日：2012-09-06

申请号：US13224824

申请日：2011-09-02

Applicant: Helmut Greim

Inventor： Helmut Greim

IPC: G01R33/44

CPC classification number: G01R33/3621 ,  G01R33/3642 ,  G01R33/365

Abstract: The present embodiments relate to a local coil for a magnetic resonance tomography system. The local coil includes a preamplifier for amplification of a signal received by the local coil from an examination object in a receive phase of the local coil. The local coil also includes a detuning device for detuning the local coil in a transmit phase of the local coil, and a rectification device for supplying voltage to the preamplifier.

Abstract translation: 本实施例涉及用于磁共振断层摄影系统的局部线圈。 本地线圈包括前置放大器，用于在本地线圈的接收阶段中从检查对象放大由局部线圈接收到的信号。 本地线圈还包括用于使局部线圈的发射相中的局部线圈失谐的失谐装置和用于向前置放大器提供电压的整流装置。

公开(公告)号：US08085048B2

公开(公告)日：2011-12-27

申请号：US12404793

申请日：2009-03-16

Applicant: Stephan Biber ,  Helmut Greim ,  Joerg Christopher Stapf

Inventor： Stephan Biber ,  Helmut Greim ,  Joerg Christopher Stapf

IPC: G01V3/00

CPC classification number: G01R33/3628 ,  G01R33/341 ,  G01R33/3692

Abstract: An arrangement to detune a reception antenna in a local coil of a magnetic resonance system, with at least one reception antenna that is fashioned as a loop antenna and that has at least one first capacitance. Radio-frequency signals of a magnetic resonance examination are received via the reception antenna. A switchable detuning circuit contains the first capacitance connected to an oscillating circuit and a first inductance. A reception device to receive a control signal is coupled with the oscillating circuit. The reception device switches the oscillating circuit into a high-resistance state given a received control signal so that a receipt of a radio-frequency signal via the reception antenna is prevented. The reception device is fashioned to receive a wirelessly transmitted radio-frequency control signal. The radio-frequency control signal has a frequency that lies outside of the bandwidth of the radio-frequency signal used for magnetic resonance examination.

Abstract translation: 一种使磁共振系统的本地线圈中的接收天线失谐的装置，其中至少一个接收天线被形成为环形天线并且具有至少一个第一电容。 通过接收天线接收磁共振检查的射频信号。 可切换失谐电路包含连接到振荡电路和第一电感的第一电容。 接收控制信号的接收装置与振荡电路耦合。 接收装置在给出接收到的控制信号的情况下将振荡电路切换为高电阻状态，从而防止经由接收天线的射频信号的接收。 接收装置被设计成接收无线发送的射频控制信号。 射频控制信号具有位于用于磁共振检查的射频信号的带宽之外的频率。

公开(公告)号：US07965082B2

公开(公告)日：2011-06-21

申请号：US12420140

申请日：2009-04-08

Applicant: Helmut Greim ,  Markus Vester ,  Jian Min Wang ,  Wei Dong Wang ,  Yao Xing

Inventor： Helmut Greim ,  Markus Vester ,  Jian Min Wang ,  Wei Dong Wang ,  Yao Xing

IPC: G01V3/00

CPC classification number: G01R33/34076 ,  G01R33/3642 ,  G01R33/3657

Abstract: In a method for processing radio frequency signals of a magnetic resonance imaging system in which the coil portion of the magnetic resonance imaging system includes a body coil and a local coil, radio frequency signals are supplied to the body coil, and these radio frequency signals are coupled to said local coil, and transmitted by said local coil into a region to be examined. A corresponding radio frequency system has a local coil and a body coil, with power coupling between the local coil and the body coil; during the phase for transmitting the radio frequency signals. The body coil serves to couple the radio frequency signals to be transmitted to the local coil, and the local coil serves to transmit the coupled radio frequency signals to a region to be examined. This method and system allow the transmitting function of the local coil to be achieved without having a coil plug on a patient bed to provide a radio frequency signal transmitting channel.

Abstract translation: 在用于处理磁共振成像系统的线圈部分包括体线圈和局部线圈的磁共振成像系统的射频信号的方法中，射频信号被提供给体线圈，并且这些射频信号是 耦合到所述局部线圈，并由所述局部线圈传输到待检查的区域中。 对应的射频系统具有局部线圈和体线圈，其在局部线圈和体线圈之间具有功率耦合; 在发射射频信号的阶段。 体线圈用于将待传输的射频信号耦合到本地线圈，并且本地线圈用于将耦合的射频信号传输到待检查的区域。 该方法和系统允许实现本地线圈的传输功能，而不需要在病床上设置线圈插头来提供射频信号传输通道。

公开(公告)号：US20100271027A1

公开(公告)日：2010-10-28

申请号：US12759883

申请日：2010-04-14

Applicant: Stephan Biber ,  Yvonne Candidus ,  Daniel Driemel ,  Helmut Greim ,  Thomas Kundner

Inventor： Stephan Biber ,  Yvonne Candidus ,  Daniel Driemel ,  Helmut Greim ,  Thomas Kundner

IPC: G01R33/44 ,  H01F7/06

CPC classification number: G01R33/36 ,  G01R33/34007 ,  Y10T29/4902

Abstract: A simple connection of a coil with a magnetic resonance tomography (MRT) is facilitated by a method and an adapter wherein a coil-connection element of at least one local coil is connected with an MRT-connection element of an MRT system. The adapter has a coil-connection element adapter designed to form a connection with at least one coil-connection element of at least one local coil. The adapter also has at least one MRT-connection element adapter designed to form a connection with an MRT-connection element of an MRT system. The adapter can be fixed mechanically to a fixing element of the MRT system.

Abstract translation: 线圈与磁共振断层摄影（MRT）的简单连接通过方法和适配器来促进，其中至少一个局部线圈的线圈连接元件与MRT系统的MRT连接元件连接。 适配器具有设计成与至少一个局部线圈的至少一个线圈连接元件形成连接的线圈连接元件适配器。 适配器还具有至少一个MRT连接元件适配器，用于与MRT系统的MRT连接元件形成连接。 适配器可以机械地固定到MRT系统的固定元件。

公开(公告)号：US20100121180A1

公开(公告)日：2010-05-13

申请号：US12597947

申请日：2008-10-31

Applicant: Stephan Biber ,  Daniel Driemel ,  Helmut Greim ,  Karsten Jahns

Inventor： Stephan Biber ,  Daniel Driemel ,  Helmut Greim ,  Karsten Jahns

IPC: A61B5/055 ,  H01Q1/12

CPC classification number: H01Q1/276 ,  G01R33/34084 ,  G01R33/3415 ,  H01Q7/00 ,  H01Q9/28

Abstract: A head coil for a magnetic resonance apparatus has a supporting body that carries a number of antenna elements. The supporting body has an end section that is shaped as a spherical cap. A butterfly antenna is mounted at the end section, and is annularly surrounded by at least one group antenna that overlaps the butterfly antenna.

Abstract translation: 用于磁共振装置的磁头线圈具有承载多个天线元件的支撑体。 支撑体具有成形为球形帽的端部。 蝶形天线安装在端部，并且被至少一个与蝴蝶天线重叠的组天线环形围绕。

公开(公告)号：US20090237081A1

公开(公告)日：2009-09-24

申请号：US12404793

申请日：2009-03-16

Applicant: Stephan Biber ,  Helmut Greim ,  Joerg Christopher Stapf

Inventor： Stephan Biber ,  Helmut Greim ,  Joerg Christopher Stapf

IPC: G01R33/36

CPC classification number: G01R33/3628 ,  G01R33/341 ,  G01R33/3692

Abstract: An arrangement to detune a reception antenna in a local coil of a magnetic resonance system, with at least one reception antenna that is fashioned as a loop antenna and that has at least one first capacitance. Radio-frequency signals of a magnetic resonance examination are received via the reception antenna. A switchable detuning circuit contains the first capacitance connected to an oscillating circuit and a first inductance. A reception device to receive a control signal is coupled with the oscillating circuit. The reception device switches the oscillating circuit into a high-resistance state given a received control signal so that a receipt of a radio-frequency signal via the reception antenna is prevented. The reception device is fashioned to receive a wirelessly transmitted radio-frequency control signal. The radio-frequency control signal has a frequency that lies outside of the bandwidth of the radio-frequency signal used for magnetic resonance examination.

Abstract translation: 一种使磁共振系统的本地线圈中的接收天线失谐的装置，其中至少一个接收天线被形成为环形天线并且具有至少一个第一电容。 通过接收天线接收磁共振检查的射频信号。 可切换失谐电路包含连接到振荡电路和第一电感的第一电容。 接收控制信号的接收装置与振荡电路耦合。 接收装置在给出接收到的控制信号的情况下将振荡电路切换为高电阻状态，从而防止经由接收天线的射频信号的接收。 接收装置被设计成接收无线发送的射频控制信号。 射频控制信号具有位于用于磁共振检查的射频信号的带宽之外的频率。

公开(公告)号：US20090128149A1

公开(公告)日：2009-05-21

申请号：US12266714

申请日：2008-11-07

Applicant: Helmut Greim

Inventor： Helmut Greim

IPC: G01R33/32

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。