公开(公告)号：US10132886B2

公开(公告)日：2018-11-20

申请号：US15015093

申请日：2016-02-03

Applicant: Stephan Biber ,  Andreas Fackelmeier ,  Markus Vester

Inventor： Stephan Biber ,  Andreas Fackelmeier ,  Markus Vester

IPC: G01R33/36

Abstract: An MR device includes at least one body coil for generating a B1 magnetic field and at least one radiofrequency line routed through the B1 magnetic field. The at least one radiofrequency line has at least one frequency filter for blocking a voltage induced by the B1 magnetic field. At least one section of the radiofrequency line routed through the B1 magnetic field is embodied in printed circuit board technology on at least one printed circuit board, and information-carrying signals may be transmitted over the at least one radiofrequency line on a different frequency than the frequency of the voltage induced by the B1 magnetic field.

公开(公告)号：US20180299522A1

公开(公告)日：2018-10-18

申请号：US15951156

申请日：2018-04-11

Applicant: Stephan Biber ,  Jan Bollenbeck ,  Sven Heggen ,  Martin Nisznansky ,  Markus Vester

Inventor： Stephan Biber ,  Jan Bollenbeck ,  Sven Heggen ,  Martin Nisznansky ,  Markus Vester

IPC: G01R33/36 ,  G01R33/3415

CPC classification number: G01R33/3692 ,  G01R33/3415 ,  G01R33/3621

Abstract: A device for recovering a temporal reference in a free-running magnetic resonance tomography (MRT) receive chain includes a time reference encoder and a time reference decoder. The time reference encoder is configured to generate a modulation signal as a function of a reference clock, where the modulation signal is configured for a correlation with a temporal resolution less than a maximum predetermined phase deviation and a maximum that may clearly be identified. The time reference decoder is configured to receive, via the first signal input, a receive signal as a function of the modulation signal, perform a correlation with a reference signal, and generate a signal as a function of a temporal reference of the modulation signal in the receive signal in relation to the reference signal.

公开(公告)号：US20180284202A1

公开(公告)日：2018-10-04

申请号：US15940355

申请日：2018-03-29

Applicant: Stephan Biber

Inventor： Stephan Biber

IPC: G01R33/341 ,  G01R33/34 ,  A61L2/07

CPC classification number: G01R33/341 ,  A61B5/0042 ,  A61B5/055 ,  A61L2/07 ,  G01R33/34007 ,  G01R33/3415 ,  G01R33/3692

Abstract: A local coil arrangement is provided herein. The local coil arrangement is particularly suitable for use in an intervention supported by magnetic resonance imaging. The local coil arrangement includes a plurality of electronic components such as at least one individual antenna is configured to receive a magnetic resonance signal. The local coil arrangement also includes a housing that encloses a hollow or material-filled housing interior. The electronic components are accommodated in the hermetically sealed housing interior. The housing is designed to be pressure- and temperature stable, such that the local coil arrangement is steam-sterilizable.

公开(公告)号：US20180172792A1

公开(公告)日：2018-06-21

申请号：US15850736

申请日：2017-12-21

Applicant: Stephan Biber

Inventor： Stephan Biber

IPC: G01R33/58 ,  G01R33/34 ,  G01R33/36

Abstract: A method for calibrating at least one operating parameter of a magnetic resonance apparatus and a corresponding magnetic resonance apparatus and computer program product are provided. The at least one operating parameter includes a constant component and a variable component. The method includes, after a start-up of at least one part of the magnetic resonance apparatus, determining the variable component of the at least one operating parameter. The constant component of the at least one operating parameter is provided. The constant component and the variable component are used to calibrate the at least one operating parameter.

公开(公告)号：US09726470B2

公开(公告)日：2017-08-08

申请号：US13974753

申请日：2013-08-23

Applicant: Stephan Biber ,  Gerhard Metz

Inventor： Stephan Biber ,  Gerhard Metz

IPC: G01B7/00 ,  G01R33/36 ,  A61B5/055 ,  G01R33/341

CPC classification number: G01B7/003 ,  A61B5/0555 ,  A61B2562/08 ,  G01R33/341 ,  G01R33/3692

Abstract: A method and a device for identifying a position of a local coil of a magnetic resonance imaging scanner relative to a position of a patient couch are provided. The device includes at least one reading unit that is configured to determine a position of at least one label at the local coil relative to the at least one reading unit. The device also includes a position determination apparatus that is configured to determine the position of the patient couch relative to the magnetic resonance imaging scanner. The device includes a position determination apparatus that is configured to determine the position of the local coil relative to the patient couch based on the determined position of the at least one label and the determined position of the patient couch.

公开(公告)号：US09689940B2

公开(公告)日：2017-06-27

申请号：US13487174

申请日：2012-06-02

Applicant: Stephan Biber ,  Jürgen Nistler ,  Markus Vester

Inventor： Stephan Biber ,  Jürgen Nistler ,  Markus Vester

IPC: G01R33/36 ,  G01R33/3415

CPC classification number: G01R33/3692 ,  G01R33/3415

Abstract: A local coil system for a magnetic resonance system including at least one local coil for capturing magnetic resonance (MR) signals and at least one energy receiving antenna for inductively receiving energy for the local coil system from a temporally varying magnetic field is provided. The at least one energy receiving antenna is or may be tuned to an energy transfer frequency that is lower than a Larmor frequency of the MR signals to be captured and higher than approximately 20 kHz.

公开(公告)号：US09645208B2

公开(公告)日：2017-05-09

申请号：US13848132

申请日：2013-03-21

Applicant: Stephan Biber ,  Yvonne Candidus ,  Hubertus Fischer ,  Robert Greiner ,  Thomas Kundner

Inventor： Stephan Biber ,  Yvonne Candidus ,  Hubertus Fischer ,  Robert Greiner ,  Thomas Kundner

IPC: G01R33/38 ,  H01F1/00 ,  H01F1/01 ,  H01F1/42 ,  G01R33/565 ,  G01R33/34

CPC classification number: G01R33/38 ,  G01R33/34007 ,  G01R33/565 ,  G01R33/56536 ,  H01F1/0063 ,  H01F1/01 ,  H01F1/42

Abstract: A material for use in a magnetic resonance system includes a carrier material and a doping material. The carrier material and the doping material are admixed in a specific proportion. A volume of the material smaller than 1 mm2 contains a substantially homogeneous intermixing of the carrier material and the doping material.

公开(公告)号：US09541619B2

公开(公告)日：2017-01-10

申请号：US13689339

申请日：2012-11-29

Applicant: Stephan Biber

Inventor： Stephan Biber

IPC: G01R33/3875

CPC classification number: G01R33/3875

Abstract: In order to balance out a field inhomogeneity, a value for a coil current is determined by a controller as a function of an item of information relating to the field inhomogeneity and an item of information relating to a position of at least one balancing or shim coil arranged in the magnetic field. The value is to be supplied to the at least one shim coil in order to generate a magnetic balancing field to balance out the field inhomogeneity. A control signal for at least one shim current source and for at least one switching matrix coupling the at least one shim current source to the at least one shim coil is generated as a function of the at least one value.

Abstract translation: 为了平衡场不均匀性，线圈电流的值由控制器确定为与场不均匀性有关的信息项的函数，以及与至少一个平衡或垫片线圈的位置有关的信息项 布置在磁场中。 该值将被提供给至少一个垫片线圈，以便产生磁平衡场以平衡场不均匀性。 作为至少一个值的函数，产生用于至少一个匀场电流源和至少一个将至少一个垫片电流源耦合到至少一个垫片线圈的开关矩阵的控制信号。

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：US20160195595A1

公开(公告)日：2016-07-07

申请号：US14975779

申请日：2015-12-19

Applicant: Stephan Biber ,  Georg Pirkl

Inventor： Stephan Biber ,  Georg Pirkl

IPC: G01R33/36 ,  G01R33/30 ,  A61B5/00

CPC classification number: G01R33/3664 ,  A61B5/704 ,  G01R33/30 ,  G01R33/3621

Abstract: A magnetic resonance tomography system includes a plurality of MRT plugs for connection of antenna elements, respectively, of one of a plurality of local coils. Due to at least one analog switch matrix, antenna elements respectively connected to fewer than all of the MRT plugs may be connected in an analog fashion to receive signal processing elements of one of a plurality of receive signal processing element blocks respectively having a plurality of receive signal processing elements. Between outputs of receive signal processing element blocks and an evaluation device of the magnetic resonance tomography system, a digital channel selection unit is provided. On an input side of the digital channel selection unit, the digital channel selection unit may be connected to antenna elements. Signals from fewer antenna elements are present at the output of the digital channel selection unit than at an input of the digital channel selection unit.

Abstract translation: 磁共振断层摄影系统包括多个用于分别连接多个局部线圈之一的天线元件的MRT插头。 由于至少一个模拟开关矩阵，分别连接到少于所有MRT插头的天线元件可以以模拟方式连接，以接收分别具有多个接收器的多个接收信号处理元件块中的一个的信号处理元件 信号处理元件。 在接收信号处理元件块的输出和磁共振断层摄影系统的评估装置之间，提供数字频道选择单元。 在数字频道选择单元的输入侧，数字频道选择单元可以连接到天线元件。 在数字信道选择单元的输出处存在来自较少天线元的信号，而不是数字信道选择单元的输入端。