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1. 发明授权

US07602188B2 System of electric coils for transmitting and receiving radio-frequency magnetic fields in a magnetic-resonance imaging apparatus, and magnetic-resonance imaging apparatus provided with such a system of electric coils 失效
标题翻译：用于在磁共振成像装置中发射和接收射频磁场的电线圈系统和具有这种电线圈系统的磁共振成像装置
公开(公告)号：US07602188B2
公开(公告)日：2009-10-13
申请号：US11572714
申请日：2005-07-12
申请人： Cecilia Possanzini , Marinus Johannes Adrianus Maria Van Helvoort , Jan Bertus Marten Warntjes , Robert Paul Kleihorst
发明人： Cecilia Possanzini , Marinus Johannes Adrianus Maria Van Helvoort , Jan Bertus Marten Warntjes , Robert Paul Kleihorst
IPC分类号： G01V3/00
CPC分类号： G01R33/341
摘要： The invention relates to a magnetic-resonance imaging (MRI) apparatus comprising an electrical coil system (17) for transmitting and receiving a radio-frequency (RF) magnetic field from an examination volume (3) of the MRI apparatus. The electrical coil system (17) comprises at least one surface coil (35) which extends substantially in a plane. The surface coil is used for transmitting and/or receiving a RF magnetic field which is oriented substantially perpendicularly to the plane of the surface coil (35). The surface coil (35) has a main coil axis (37). When the MRI apparatus is in use, the main coil axis (37) extends substantially parallel to a main magnetic field in the examination volume (3) of the MRI apparatus. On both sides of the main coil axis (37), the surface coil (35) comprises an electrically conducting element (39) which extends substantially parallel to the main coil axis (37). To provide a surface coil (35) which transmits more homogeneous RF magnetic fields and/or has a more homogeneous sensitivity for received RF magnetic fields than known surface coils, at least one of the electrically conducting elements (39) of the surface coil (35) comprises at least two electric conductors (41). With respect to their distance to the main coil axis (37), these electric conductors (41) are positioned at a relatively short distance from each other. In the plane of the surface coil (35), the electric conductors (41)extend substantially parallel to the main coil axis (37) of the surface coil (35).
摘要翻译：本发明涉及一种磁共振成像（MRI）装置，其包括用于从MRI装置的检查体积（3）发射和接收射频（RF）磁场的电线圈系统（17）。电线圈系统（17）包括基本上在平面中延伸的至少一个表面线圈（35）。表面线圈用于传输和/或接收基本上垂直于表面线圈（35）的平面定向的RF磁场。表面线圈（35）具有主线圈轴（37）。当使用MRI装置时，主线圈轴线（37）基本上平行于MRI装置的检查体积（3）中的主磁场延伸。在主线圈轴线（37）的两侧，表面线圈（35）包括基本上平行于主线圈轴线（37）延伸的导电元件（39）。为了提供表面线圈（35），所述表面线圈（35）传递更均匀的RF磁场和/或对已接收的RF磁场具有比已知表面线圈更均匀的灵敏度，表面线圈（35）的至少一个导电元件（39））包括至少两个电导体（41）。对于它们到主线圈轴线（37）的距离，这些电导体（41）位于彼此相对短的距离处。在表面线圈（35）的平面中，电导体（41）基本上平行于表面线圈（35）的主线圈轴线（37）延伸。

2. 发明申请

US20080259897A1 Method and Arrangement for Wireless Communication of Signals in a Mr System 有权
标题翻译：系统中信号无线通信的方法和布置
公开(公告)号：US20080259897A1
公开(公告)日：2008-10-23
申请号：US12097554
申请日：2006-12-20
申请人： Marinus Johannes Adrianus Maria Van Helvoort , Jeff Bennett , Marc Paul Saes , Lambertus De Vries , Johannes Hendrik Den Boef , Robert Paul Kleihorst , Dagnachew Birru
发明人： Marinus Johannes Adrianus Maria Van Helvoort , Jeff Bennett , Marc Paul Saes , Lambertus De Vries , Johannes Hendrik Den Boef , Robert Paul Kleihorst , Dagnachew Birru
IPC分类号： H04J3/00
CPC分类号： G01R33/283 , G01R33/3692 , G01R33/56383
摘要： A method and an arrangement for uni- or bidirectional wireless communication of signals or data especially in a reflective environment like a MR imaging system, between at least one first transmitter and/or receiver unit (501, 601, 701; T/R1) and at least one second transmitter and/or receiver unit (801; T/R2) is disclosed. The reliability and availability of the communication link especially in a highly reflective environment is improved especially by using spread spectrum technology and ultra wide band carrier frequencies.
摘要翻译：一种用于信号或数据的单向或双向无线通信的方法和装置，特别是在诸如MR成像系统的反射环境中，在至少一个第一发射器和/或接收器单元（501,601,701; T / R 1）之间，并且公开了至少一个第二发射机和/或接收机单元（801; T / R 2）。特别是在高反射环境中通信链路的可靠性和可用性得到了改进，特别是通过使用扩频技术和超宽带载波频率。

3. 发明授权

US07746072B2 MRI system comprising a scan room interface for A/D-conversion of MR signals between a receiver coil unit and a remote signal processing unit 有权
标题翻译： MRI系统包括用于在接收器线圈单元和远程信号处理单元之间进行MR信号的A / D转换的扫描室接口
公开(公告)号：US07746072B2
公开(公告)日：2010-06-29
申请号：US11909164
申请日：2006-03-20
申请人： Marinus Johannes Adrianus Maria Van Helvoort , Marc Paul Saes , Johan Samuel Van Den Brink , Robert Paul Kleihorst , Paulus Cornelius Hendrikus Adrianus Haans
发明人： Marinus Johannes Adrianus Maria Van Helvoort , Marc Paul Saes , Johan Samuel Van Den Brink , Robert Paul Kleihorst , Paulus Cornelius Hendrikus Adrianus Haans
IPC分类号： G01V3/00
CPC分类号： G01R33/3621 , G01R33/3415 , G01R33/3692
摘要： The present invention relates to a magnetic resonance imaging system, to a magnetic resonance imaging method for operating a magnetic resonance imaging system and to a computer program for operating a magnetic resonance imaging system. In order to considerably reduce the number of cabling in a magnetic resonance imaging system a magnetic resonance imaging system (1) is suggested, the system comprising: an examination zone (5) arranged to receive a body for examination; magnetic field generating means (9, 10, 24) for generating a magnetic field in the examination zone (5); a receiving unit (14) located in the examination zone (5) or in the vicinity of the examination zone (5); an interface unit (17) located in the examination zone (5) or in the vicinity of the examination zone (5), and arranged separately from the receiving unit (14); and a signal processing unit (21) disposed at a location (2) remote from the receiving unit (14) and the interface unit (17); wherein the receiving unit (14) comprising a receiver (15) adapted to receive a spin resonance signal generated in the examination zone (5), and a transmitter (16) adapted to transmit the spin resonance signal to the interface unit (17); and wherein the interface unit (17) comprises a receiver (20) for receiving the spin resonance signals, an analog to digital converter (19) adapted to generate a digital signal in response to the received spin resonance signal, and a transmitter (20) for transmitting the digitized signal to the signal processing unit (21).
摘要翻译：磁共振成像系统技术领域本发明涉及一种用于操作磁共振成像系统的磁共振成像方法和用于操作磁共振成像系统的计算机程序的磁共振成像系统。为了大大减少磁共振成像系统中的电缆数量，建议使用磁共振成像系统（1），该系统包括：检查区域（5），布置成接收检查体; 用于在检查区（5）中产生磁场的磁场产生装置（9,10,24）; 位于检查区（5）或检查区（5）附近的接收单元（14）; 位于所述检查区域（5）中或所述检查区域（5）附近的接口单元（17），并且与所述接收单元（14）分开布置; 以及设置在远离所述接收单元（14）和所述接口单元（17）的位置（2）处的信号处理单元（21）。其中所述接收单元（14）包括适于接收在所述检查区（5）中产生的自旋共振信号的接收器（15）和适于将所述自旋共振信号传输到所述接口单元（17）的发射器（16）。并且其中所述接口单元（17）包括用于接收所述自旋谐振信号的接收器（20），适于响应于所接收的自旋谐振信号产生数字信号的模数转换器（19），以及发射器（20）用于将数字化信号发送到信号处理单元（21）。

4. 发明授权

US08155101B2 Method and arrangement for wireless communication of signals in a MR system 有权
标题翻译：用于MR系统中的信号的无线通信的方法和装置
公开(公告)号：US08155101B2
公开(公告)日：2012-04-10
申请号：US12097554
申请日：2006-12-20
申请人： Marinus Johannes Adrianus Maria Van Helvoort , Jeff Bennett , Marc Paul Saes , Lambertus De Vries , Johannes Hendrik Den Boef , Robert Paul Kleihorst , Dagnachew Birru
发明人： Marinus Johannes Adrianus Maria Van Helvoort , Jeff Bennett , Marc Paul Saes , Lambertus De Vries , Johannes Hendrik Den Boef , Robert Paul Kleihorst , Dagnachew Birru
IPC分类号： H04J3/00
CPC分类号： G01R33/283 , G01R33/3692 , G01R33/56383
摘要： A method and an arrangement for uni- or bidirectional wireless communication of signals or data especially in a reflective environment like a MR imaging system, between at least one first transmitter and/or receiver unit (501, 601, 701; T/R1) and at least one second transmitter and/or receiver unit (801; T/R2) is disclosed. The reliability and availability of the communication link especially in a highly reflective environment is improved especially by using spread spectrum technology and ultra wide band carrier frequencies.
摘要翻译：一种用于信号或数据的单向或双向无线通信的方法和装置，特别是在诸如MR成像系统的反射环境中，在至少一个第一发射机和/或接收机单元（501,601,701; T / R1）和公开了至少一个第二发射机和/或接收机单元（801; T / R2）。特别是在高反射环境中通信链路的可靠性和可用性得到了改进，特别是通过使用扩频技术和超宽带载波频率。

5. 发明授权

US07750630B2 Magnetic resonance device and method for energizing receiving units 有权
标题翻译：用于激励接收单元的磁共振装置和方法
公开(公告)号：US07750630B2
公开(公告)日：2010-07-06
申请号：US11721173
申请日：2005-12-14
申请人： Marinus Johannes Adrianus Maria Van Helvoort , Johannes Petrus Groen , Robert Paul Kleihorst , Cornelis Leonardus Gerardus Ham
发明人： Marinus Johannes Adrianus Maria Van Helvoort , Johannes Petrus Groen , Robert Paul Kleihorst , Cornelis Leonardus Gerardus Ham
IPC分类号： G01V3/00
CPC分类号： G01R33/3692 , G01R33/3415 , G01R33/3621
摘要： The invention relates to a device (1) for magnetic resonance imaging of a body (7), comprising a main magnet (2) for generation of a stationary and substantially homogeneous main magnetic field within the examination zone, a plurality of wireless receiving units (10a, 10b) placed in or near the examination zone, and sampling means (21a, 21b) operating at a variable sampling frequency for sampling the received MR signals and for converting them into digital signal samples. The invention proposes to make provision for energizing means (17) generating an RF energizing field within the examination zone for inductively supplying electric power to the wireless receiving units (10a, 10b), wherein the frequency of the RF energizing field is an integer multiple of the sampling frequency.
摘要翻译：本发明涉及一种用于身体（7）的磁共振成像的装置（1），包括用于在检查区内产生静止且基本均匀的主磁场的主磁体（2），多个无线接收单元 10a，10b），以及以可变采样频率工作的采样装置（21a，21b），用于对接收的MR信号进行采样并将其转换成数字信号采样。本发明提出为激励装置（17）提供在检查区域内产生用于向无线接收单元（10a，10b）感应供电的RF激励场，其中RF激励场的频率为采样频率。

6. 发明申请

US20080191695A1 Mri System Comprising a Scan Room Inferface for A/D-Conversion of Mr Signals Between a Receiver Coil Unit and a Remote Signal Processing Unit 有权
标题翻译：包含扫描室的Mri系统接收器线圈单元和远程信号处理单元之间的信号的A / D转换的表面
公开(公告)号：US20080191695A1
公开(公告)日：2008-08-14
申请号：US11909164
申请日：2006-03-20
申请人： Marinus Johannes Adrianus Maria Van Helvoort , Marc Paul Saes , Johan Samuel Van Den Brink , Robert Paul Kleihorst , Paulus Cornelius Hendrikus Adrianus Haans
发明人： Marinus Johannes Adrianus Maria Van Helvoort , Marc Paul Saes , Johan Samuel Van Den Brink , Robert Paul Kleihorst , Paulus Cornelius Hendrikus Adrianus Haans
IPC分类号： G01R33/36
CPC分类号： G01R33/3621 , G01R33/3415 , G01R33/3692
摘要： The present invention relates to a magnetic resonance imaging system, to a magnetic resonance imaging method for operating a magnetic resonance imaging system and to a computer program for operating a magnetic resonance imaging system. In order to considerably reduce the number of cabling in a magnetic resonance imaging system a magnetic resonance imaging system (1) is suggested, the system comprising: an examination zone (5) arranged to receive a body for examination; magnetic field generating means (9, 10, 24) for generating a magnetic field in the examination zone (5); a receiving unit (14) located in the examination zone (5) or in the vicinity of the examination zone (5); an interface unit (17) located in the examination zone (5) or in the vicinity of the examination zone (5), and arranged separately from the receiving unit (14); and a signal processing unit (21) disposed at a location (2) remote from the receiving unit (14) and the interface unit (17); wherein the receiving unit (14) comprising a receiver (15) adapted to receive a spin resonance signal generated in the examination zone (5), and a transmitter (16) adapted to transmit the spin resonance signal to the interface unit (17); and wherein the interface unit (17) comprises a receiver (20) for receiving the spin resonance signals, an analog to digital converter (19) adapted to generate a digital signal in response to the received spin resonance signal, and a transmitter (20) for transmitting the digitized signal to the signal processing unit (21).
摘要翻译：磁共振成像系统技术领域本发明涉及一种用于操作磁共振成像系统的磁共振成像方法和用于操作磁共振成像系统的计算机程序的磁共振成像系统。为了大大减少磁共振成像系统中的电缆数量，建议使用磁共振成像系统（1），该系统包括：检查区域（5），布置成接收检查体; 用于在检查区（5）中产生磁场的磁场产生装置（9,10,24）; 位于检查区（5）或检查区（5）附近的接收单元（14）; 位于所述检查区域（5）中或所述检查区域（5）附近的接口单元（17），并且与所述接收单元（14）分开布置; 以及设置在远离所述接收单元（14）和所述接口单元（17）的位置（2）处的信号处理单元（21）。其中所述接收单元（14）包括适于接收在所述检查区（5）中产生的自旋共振信号的接收器（15）和适于将所述自旋共振信号传输到所述接口单元（17）的发射器（16）。并且其中所述接口单元（17）包括用于接收所述自旋谐振信号的接收器（20），适于响应于所接收的自旋谐振信号产生数字信号的模数转换器（19），以及发射器（20）用于将数字化信号发送到信号处理单元（21）。

7. 发明申请

US20120083936A1 POWER DISTRIBUTION APPARATUS 审中-公开
标题翻译：电源分配设备
公开(公告)号：US20120083936A1
公开(公告)日：2012-04-05
申请号：US13375824
申请日：2010-06-21
申请人： Johannes Antonius Van Vliet , Robert Paul Kleihorst , Bernhard Wagner , Marinus Johannes Adrianus Maria Van Helvoort , Peter-Christian Erich Heinrich Han-Joach Leymann , Arno Ostendorf
发明人： Johannes Antonius Van Vliet , Robert Paul Kleihorst , Bernhard Wagner , Marinus Johannes Adrianus Maria Van Helvoort , Peter-Christian Erich Heinrich Han-Joach Leymann , Arno Ostendorf
IPC分类号： G06F1/28
CPC分类号： H02J3/14 , Y02B70/3225 , Y02P80/11 , Y04S20/222
摘要： The invention relates to an electrical power distribution apparatus (100) connectible to one or more loads (119). The electrical power distribution apparatus (100) comprises inter alia one or more taps (112) for supplying the loads (119) with electrical power. On top of circuit breakers (108) to switch off the power supply in order to protect the loads against damage, there is also arranged a second layer of soft fuse switches (110) which are arranged to switch on or off the power supply at the taps (112) to control distribution of the power. The soft fuses (110) operate in dependence on and in response to commands issued from a controller (105) which in turn operates and issues those commands in response to and independence on the voltages and amperages monitored at those taps (112) by way of a monitoring module (111). Switching on/off occurs at amperage and voltages lower than the critical threshold values to which the circuit breakers (108) respond to.
摘要翻译：本发明涉及一种可连接到一个或多个负载（119）的配电装置（100）。配电装置（100）尤其包括用于向负载（119）提供电力的一个或多个抽头（112）。在断路器（108）的顶部，为了保护负载免受损坏而关闭电源，还布置有第二层软保险丝开关（110），其被布置成在电源处接通或断开电源抽头（112）来控制电源的分配。柔性保险丝（110）依赖于并响应于从控制器（105）发出的命令来操作，控制器（105）又响应于并且独立地在这些抽头（112）处监视的电压和电流而运行并发出这些命令，借助于监视模块（111）。在电流和电压低于断路器（108）响应的临界阈值的情况下开启/关闭。

8. 发明申请

US20090237079A1 MAGNETIC RESONANCE DEVICE AND METHOD 有权
标题翻译：磁共振装置及方法
公开(公告)号：US20090237079A1
公开(公告)日：2009-09-24
申请号：US11721173
申请日：2005-12-14
申请人： Marinus Johannes Adrianus Maria Van Helvoort , Johannes Petrus Groen , Robert Paul Kleihorst , Cornelis Leonardus Gerardus Ham
发明人： Marinus Johannes Adrianus Maria Van Helvoort , Johannes Petrus Groen , Robert Paul Kleihorst , Cornelis Leonardus Gerardus Ham
IPC分类号： G01R33/46 , G01R33/36
CPC分类号： G01R33/3692 , G01R33/3415 , G01R33/3621
摘要： The invention relates to a device (1) for magnetic resonance imaging of a body (7), comprising a main magnet (2) for generation of a stationary and substantially homogeneous main magnetic field within the examination zone, a plurality of wireless receiving units (10a, 10b) placed in or near the examination zone, and sampling means (21a, 21b) operating at a variable sampling frequency for sampling the received MR signals and for converting them into digital signal samples. In order to provide an MR device (1), which is arranged to inductively energize the wireless receiving units (10a, 10b) without interference with the nuclear spin system of the examined object (7) and which does not necessarily require bulky energy storage means for the operation of the wireless receiving units (10a, 10b), the invention proposes to make provision for energizing means (17) generating an RF energizing field within the examination zone for inductively supplying electric power to the wireless receiving units (10a, 10b), wherein the frequency of the RF energizing field is an integer multiple of the sampling frequency.
摘要翻译：本发明涉及一种用于身体（7）的磁共振成像的装置（1），包括用于在检查区内产生静止且基本均匀的主磁场的主磁体（2），多个无线接收单元 10a，10b），以及以可变采样频率工作的采样装置（21a，21b），用于对接收的MR信号进行采样并将其转换成数字信号采样。为了提供一种MR装置（1），其被布置成在不干扰检查对象（7）的核自旋系统的情况下感应地激励无线接收单元（10a，10b），并且不一定需要庞大的能量存储装置为了无线接收单元（10a，10b）的操作，本发明提出为激励装置（17）提供在该检查区域内产生用于向无线接收单元（10a，10b）供电的电力的RF激励场，，其中所述RF激励场的频率是所述采样频率的整数倍。

9. 发明授权

US10581243B2 Power distribution apparatus 有权
公开(公告)号：US10581243B2
公开(公告)日：2020-03-03
申请号：US13375824
申请日：2010-06-21
申请人： Johannes Antonius Van Vliet , Robert Paul Kleihorst , Bernhard Wagner , Marinus Johannes Adrianus Maria Van Helvoort , Peter-Christian Erich Heinrich Hans-Joachim Leymann , Arno Ostendorf
发明人： Johannes Antonius Van Vliet , Robert Paul Kleihorst , Bernhard Wagner , Marinus Johannes Adrianus Maria Van Helvoort , Peter-Christian Erich Heinrich Hans-Joachim Leymann , Arno Ostendorf
IPC分类号： H02J3/14
摘要： The invention relates to an electrical power distribution apparatus (100) connectible to one or more loads (119). The electrical power distribution apparatus (100) comprises inter alia one or more taps (112) for supplying the loads (119) with electrical power. On top of circuit breakers (108) to switch off the power supply in order to protect the loads against damage, there is also arranged a second layer of soft fuse switches (110) which are arranged to switch on or off the power supply at the taps (112) to control distribution of the power. The soft fuses (110) operate in dependence on and in response to commands issued from a controller (105) which in turn operates and issues those commands in response to and independence on the voltages and amperages monitored at those taps (112) by way of a monitoring module (111). Switching on/off occurs at amperage and voltages lower than the critical threshold values to which the circuit breakers (108) respond to.

10. 发明授权

US07279898B2 MRI RF surface coil with reduced sensitivity in proximity of conductors 失效
公开(公告)号：US07279898B2
公开(公告)日：2007-10-09
申请号：US10560873
申请日：2004-06-21
申请人： Robert Paul Kleihorst , Jan Bertus Marten Warntjes
发明人： Robert Paul Kleihorst , Jan Bertus Marten Warntjes
IPC分类号： G01V3/00
CPC分类号： G01R33/3642 , G01R33/341
摘要： The invention relates to a radio-frequent (RF) coil system (17, 17′) for use in a magnetic resonance imaging (MRI) system. The RF coil system comprises at least one main coil (35) for transmitting an RF magnetic field (B1) into and/or receiving an RF magnetic field (B1′) from an examination volume (3) of the MRI system. The main coil has a main coil axis (37), which is or is to be oriented parallel to a main magnetic field (B0) in the examination volume, and at least one electrical conductor (39, 41) which extends mainly parallel to the main coil axis. According to the invention, the RF coil system comprises at least two electrical auxiliary coils (51, 53, 55, 57) which are assigned to said conductor of the main coil. The auxiliary coils are arranged on opposite sides of said conductor of the main coil. Each auxiliary coil has a coil axis (59, 61, 63, 65) which extends substantially parallel to the main coil axis at a distance from the conductor of the main coil to which the respective auxiliary coil is assigned, said distance being small relative to a main dimension (L) of the main coil. The auxiliary coils constitute passive electrical coils in which electrical currents are generated under the influence of an RF magnetic field (B11, B11′) present at the location of the auxiliary coils. The RF magnetic field (B12, B34) generated by the auxiliary coils as a result of said currents in the auxiliary coils suppresses said RF magnetic field present at the location of the auxiliary coils. Thus, the auxiliary coils provide a sensitivity reducing effect of the RF coil system in local regions (47, 49) which are at relatively small distances from the conductor of the main coil. For regions at a distance from the conductor of the main coil comparable to the main dimension of the main coil, said sensitivity reducing effect is negligible.

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