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公开(公告)号：US10663538B2
公开(公告)日：2020-05-26
申请号：US15700124
申请日：2017-09-09
申请人： Wolfgang Bielmeier , Gerhard Brinker , Swen Campagna , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Helmut Lenz , Jürgen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stöcker , Markus Vester
发明人： Wolfgang Bielmeier , Gerhard Brinker , Swen Campagna , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Helmut Lenz , Jürgen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stöcker , Markus Vester
IPC分类号： G01R33/24 , G01R33/385 , G01R33/28
摘要： A method for monitoring a temporal change in a magnetic field in a magnetic resonance device, as well as an evaluation unit, a magnetic resonance device, and a computer program product for performing the method are provided. The method provides that a position-dependent magnetic field distribution that is produced by the plurality of gradient coils is provided with a plurality of monitoring points. In addition, time-dependent gradient values of the plurality of gradient coils are ascertained. Based on position-dependent magnetic field distribution and the time-dependent gradient values, the temporal change in the magnetic field is ascertained. The temporal change in the magnetic field is monitored by comparing the temporal change in the magnetic field with at least one limit value.
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2.发明授权公开(公告)号：US10101415B2
公开(公告)日：2018-10-16
申请号：US15488478
申请日：2017-04-15
申请人： Wolfgang Bielmeier , Gerhard Brinker , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Jürgen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stöcker , Markus Vester , Swen Campagna
发明人： Wolfgang Bielmeier , Gerhard Brinker , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Jürgen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stöcker , Markus Vester , Swen Campagna
摘要： A method for operating a magnetic resonance apparatus by a safety unit, taking into account persons fitted with an implant, a safety unit, a safety system, a magnetic resonance apparatus, and a computer program product are provided. The magnetic resonance apparatus includes a first part and a second part. The first part is operated separately from the second part and includes the safety unit. During an examination of a person fitted with an implant, the safety unit checks that the magnetic resonance apparatus, in a restricted operating mode, is complying with implant-conformant limit values.
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公开(公告)号：US20180074138A1
公开(公告)日：2018-03-15
申请号：US15700124
申请日：2017-09-09
申请人： Wolfgang Bielmeier , Gerhard Brinker , Swen Campagna , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Helmut Lenz , Jürgen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stöcker , Markus Vester
发明人： Wolfgang Bielmeier , Gerhard Brinker , Swen Campagna , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Helmut Lenz , Jürgen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stöcker , Markus Vester
IPC分类号： G01R33/24 , G01R33/385 , G01R33/28
CPC分类号： G01R33/24 , G01R33/288 , G01R33/385
摘要： A method for monitoring a temporal change in a magnetic field in a magnetic resonance device, as well as an evaluation unit, a magnetic resonance device, and a computer program product for performing the method are provided. The method provides that a position-dependent magnetic field distribution that is produced by the plurality of gradient coils is provided with a plurality of monitoring points. In addition, time-dependent gradient values of the plurality of gradient coils are ascertained. Based on position-dependent magnetic field distribution and the time-dependent gradient values, the temporal change in the magnetic field is ascertained. The temporal change in the magnetic field is monitored by comparing the temporal change in the magnetic field with at least one limit value.
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4.发明申请公开(公告)号：US20170299667A1
公开(公告)日：2017-10-19
申请号：US15488478
申请日：2017-04-15
申请人： Wolfgang Bielmeier , Gerhard Brinker , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Jürgen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stöcker , Markus Vester , Swen Campagna
发明人： Wolfgang Bielmeier , Gerhard Brinker , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Jürgen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stöcker , Markus Vester , Swen Campagna
CPC分类号： G01R33/288 , A61B5/055 , G01R33/543
摘要： A method for operating a magnetic resonance apparatus by a safety unit, taking into account persons fitted with an implant, a safety unit, a safety system, a magnetic resonance apparatus, and a computer program product are provided. The magnetic resonance apparatus includes a first part and a second part. The first part is operated separately from the second part and includes the safety unit. During an examination of a person fitted with an implant, the safety unit checks that the magnetic resonance apparatus, in a restricted operating mode, is complying with implant-conformant limit values.
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公开(公告)号：US10197644B2
公开(公告)日：2019-02-05
申请号：US15266042
申请日：2016-09-15
摘要： A local transmit coil for a magnetic resonance tomograph is provided. The local transmit coil includes a signal transmission device for signal transmission to the magnetic resonance tomograph, and a transmission antenna for generating a magnetic excitation field. The local transmit coil further includes an evaluation device for monitoring a function of the local transmit coil. The evaluation device is configured to transmit a status signal relating to the local transmit coil via the signal transmission device.
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公开(公告)号：US20170074953A1
公开(公告)日：2017-03-16
申请号：US15266042
申请日：2016-09-15
IPC分类号： G01R33/341 , G01R31/06
CPC分类号： G01R33/341 , G01R31/06 , G01R33/288 , G01R33/34046 , G01R33/34076 , G01R33/36 , G01R33/3692
摘要： A local transmit coil for a magnetic resonance tomograph is provided. The local transmit coil includes a signal transmission device for signal transmission to the magnetic resonance tomograph, and a transmission antenna for generating a magnetic excitation field. The local transmit coil further includes an evaluation device for monitoring a function of the local transmit coil. The evaluation device is configured to transmit a status signal relating to the local transmit coil via the signal transmission device.
摘要翻译： 提供了一种用于磁共振断层扫描仪的局部发射线圈。 局部发射线圈包括用于信号传输到磁共振断层摄影机的信号传输装置和用于产生磁激励场的发射天线。 本地发送线圈还包括用于监视本地发送线圈的功能的评估装置。 评估装置经由信号传输装置发送与本地发送线圈相关的状态信号。
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7.发明授权公开(公告)号：US08269493B2
公开(公告)日：2012-09-18
申请号：US12275695
申请日：2008-11-21
申请人： Nikolaus Demharter , Georg Pirkl , Markus Vester
发明人： Nikolaus Demharter , Georg Pirkl , Markus Vester
IPC分类号： G01V3/00
CPC分类号： G01R33/341 , G01R33/3415 , G01R33/3621 , G01R33/3692
摘要： An arrangement for transmission of digital signals in a magnetic resonance apparatus has a local coil that has reception antenna connected via an amplifier with an A/D converter so that a magnetic resonance signal received via the individual antenna is amplified as an analog signal and is converted into a digital signal. The A/D converter is connected at the output with a transmission device that is designed for capacitive coupling transmission of the digital signal.
摘要翻译： 用于在磁共振装置中传输数字信号的布置具有本地线圈，其具有经由放大器与A / D转换器连接的接收天线，使得经由单独天线接收的磁共振信号作为模拟信号被放大并被转换 成为数字信号。 A / D转换器在输出端连接有为数字信号的电容耦合传输而设计的传输装置。
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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
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.
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9.发明申请公开(公告)号：US20130229180A1
公开(公告)日：2013-09-05
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
CPC分类号： G01R33/543 , G01R33/3614
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.
摘要翻译： 提供了一种在磁共振断层摄影系统中发射可能具有不同包络的高频脉冲序列的方法。 接收指定要发射的高频脉冲的包络的数字指令信号。 根据指示信号，数字控制信号被发送到用于产生高频脉冲的高频单元。 接收允许通知当前过载情况的测试信号。 如果测试信号表示过载情况，则电流控制信号减小。
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10.发明申请公开(公告)号：US20090137898A1
公开(公告)日：2009-05-28
申请号：US12275695
申请日：2008-11-21
申请人： Nikolaus Demharter , Georg Pirkl , Markus Vester
发明人： Nikolaus Demharter , Georg Pirkl , Markus Vester
CPC分类号： G01R33/341 , G01R33/3415 , G01R33/3621 , G01R33/3692
摘要： An arrangement for transmission of digital signals in a magnetic resonance apparatus has a local coil that has reception antenna connected via an amplifier with an A/D converter so that a magnetic resonance signal received via the individual antenna is amplified as an analog signal and is converted into a digital signal. The A/D converter is connected at the output with a transmission device that is designed for capacitive coupling transmission of the digital signal.
摘要翻译： 用于在磁共振装置中传输数字信号的布置具有本地线圈，其具有经由放大器与A / D转换器连接的接收天线，使得经由单独天线接收的磁共振信号作为模拟信号被放大并被转换 成为数字信号。 A / D转换器在输出端连接有为数字信号的电容耦合传输而设计的传输装置。
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