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11. 发明申请

US20120262173A1 HIGH-FREQUENCY COIL UNIT AND MAGNETIC RESONANCE IMAGING DEVICE 有权
标题翻译：高频线圈单元和磁共振成像装置
公开(公告)号：US20120262173A1
公开(公告)日：2012-10-18
申请号：US13512090
申请日：2010-11-29
申请人： Yoshihisa Soutome , Hideta Habara , Yoshitaka Bito , Hiroyuki Takeuchi , Tetsuhiko Takahashi , Hisaaki Ochi
发明人： Yoshihisa Soutome , Hideta Habara , Yoshitaka Bito , Hiroyuki Takeuchi , Tetsuhiko Takahashi , Hisaaki Ochi
IPC分类号： G01R33/34 , G01R33/48
CPC分类号： G01R33/34046 , G01R33/34053 , G01R33/34076 , G01R33/3453 , G01R33/3657 , G01R33/3678
摘要： There is provided a technique for securing a large examination space in a tunnel type MRI device without inviting increase of manufacturing cost and without significantly reducing irradiation efficiency or uniformity of the irradiation intensity distribution in an imaging region. Between rungs of a partially cylindrical RF coil, which coil corresponds to a cylindrical RF coil of which part is removed, there are disposed half-loops generating magnetic fields, which are synthesized with magnetic fields generated by loops constituted by adjacent rungs of the partially cylindrical RF coil and rings connecting the rungs to generate a circularly polarized or elliptically polarized magnetic field. Further, high-frequency signals of the same reference frequency having a desired amplitude ratio and phase difference are supplied to the partially cylindrical RF coils and half-loops.
摘要翻译：提供了一种用于在隧道式MRI装置中确保大的检查空间的技术，而不会增加制造成本，并且不显着降低成像区域中的照射强度分布的照射效率或均匀性。在部分圆柱形RF线圈的两个梯级之间，该线圈对应于部分被去除的圆柱形RF线圈，设置有产生磁场的半环，该磁场由具有由部分圆柱形的相邻梯级构成的环产生的磁场合成 RF线圈和环连接梯级以产生圆偏振或椭圆偏振磁场。此外，具有期望幅度比和相位差的相同参考频率的高频信号被提供给部分圆柱形RF线圈和半环。

12. 发明申请

US20120299594A1 ANTENNA DEVICE 有权
标题翻译：天线设备
公开(公告)号：US20120299594A1
公开(公告)日：2012-11-29
申请号：US13577885
申请日：2011-01-21
申请人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Masayoshi Dohata , Tetsuhiko Takahashi , Hiroyuki Takeuchi
发明人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Masayoshi Dohata , Tetsuhiko Takahashi , Hiroyuki Takeuchi
IPC分类号： G01R33/28
CPC分类号： G01R33/34046
摘要： There is provided a technique for securing a comfortable examination space in a tunnel type MRI apparatus without increasing the manufacturing cost of the MRI apparatus and sacrificing performance thereof. In an RF coil provided with a hollow-shaped outer conductive element and a strip-shaped conductive element disposed along the outer conductive element in the axial direction, meander lines constituting the strip-shaped conductive element are disposed at uneven distances from the outer conductive element to secure an internal space. In order to obtain uniform sensitivity at the center of the RF coil, the strip-shaped conductive element is constituted with N of connected meander lines, and length of the strip-shaped conductive element is adjusted so that, in the strip-shaped conductive element resonating at resonance frequency of the antenna, nodes are formed in a number of (M+1)×N−1, wherein M is 0 or a natural number of 1 or larger.
摘要翻译：提供了一种用于在隧道式MRI装置中确保舒适检查空间而不增加MRI装置的制造成本并牺牲其性能的技术。在具有中空状的外部导电元件的RF线圈和沿着外部导电元件沿轴向设置的条状导电元件，构成条形导电元件的曲折线设置在与外部导电元件不均匀的距离处以确保内部空间。为了在RF线圈的中心获得均匀的灵敏度，带状导电元件由N个连接的曲折线构成，并且条形导电元件的长度被调节，使得在带状导电元件在天线的谐振频率下共振，以（M + 1）×N-1的数量形成节点，其中M为0或自然数为1或更大。

13. 发明授权

US09274189B2 High-frequency coil unit and magnetic resonance imaging device 有权
标题翻译：高频线圈单元和磁共振成像装置
公开(公告)号：US09274189B2
公开(公告)日：2016-03-01
申请号：US13512090
申请日：2010-11-29
申请人： Yoshihisa Soutome , Hideta Habara , Yoshitaka Bito , Hiroyuki Takeuchi , Tetsuhiko Takahashi , Hisaaki Ochi
发明人： Yoshihisa Soutome , Hideta Habara , Yoshitaka Bito , Hiroyuki Takeuchi , Tetsuhiko Takahashi , Hisaaki Ochi
IPC分类号： G01R33/34 , G01R33/48 , G01R33/345 , G01R33/36
CPC分类号： G01R33/34046 , G01R33/34053 , G01R33/34076 , G01R33/3453 , G01R33/3657 , G01R33/3678
摘要： There is provided a technique for securing a large examination space in a tunnel type MRI device without inviting increase of manufacturing cost and without significantly reducing irradiation efficiency or uniformity of the irradiation intensity distribution in an imaging region. Between rungs of a partially cylindrical RF coil, which coil corresponds to a cylindrical RF coil of which part is removed, there are disposed half-loops generating magnetic fields, which are synthesized with magnetic fields generated by loops constituted by adjacent rungs of the partially cylindrical RF coil and rings connecting the rungs to generate a circularly polarized or elliptically polarized magnetic field. Further, high-frequency signals of the same reference frequency having a desired amplitude ratio and phase difference are supplied to the partially cylindrical RF coils and half-loops.
摘要翻译：提供了一种用于在隧道式MRI装置中确保大的检查空间的技术，而不会增加制造成本，并且不显着降低成像区域中的照射强度分布的照射效率或均匀性。在部分圆柱形RF线圈的两个梯级之间，该线圈对应于部分被去除的圆柱形RF线圈，设置有产生磁场的半环，该磁场由具有由部分圆柱形的相邻梯级构成的环产生的磁场合成 RF线圈和环连接梯级以产生圆偏振或椭圆偏振磁场。此外，具有期望幅度比和相位差的相同参考频率的高频信号被提供给部分圆柱形RF线圈和半环。

14. 发明授权

US09182463B2 Magnetic resonance examination apparatus and antenna device 有权
标题翻译：磁共振检查仪和天线装置
公开(公告)号：US09182463B2
公开(公告)日：2015-11-10
申请号：US13577885
申请日：2011-01-21
申请人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Masayoshi Dohata , Tetsuhiko Takahashi , Hiroyuki Takeuchi
发明人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Masayoshi Dohata , Tetsuhiko Takahashi , Hiroyuki Takeuchi
IPC分类号： G01R33/34
CPC分类号： G01R33/34046
摘要： There is provided a technique for securing a comfortable examination space in a tunnel type MRI apparatus without increasing the manufacturing cost of the MRI apparatus and sacrificing performance thereof. In an RF coil provided with a hollow-shaped outer conductive element and a strip-shaped conductive element disposed along the outer conductive element in the axial direction, meander lines constituting the strip-shaped conductive element are disposed at uneven distances from the outer conductive element to secure an internal space. In order to obtain uniform sensitivity at the center of the RF coil, the strip-shaped conductive element is constituted with N of connected meander lines, and length of the strip-shaped conductive element is adjusted so that, in the strip-shaped conductive element resonating at resonance frequency of the antenna, nodes are formed in a number of (M+1)×N−1, wherein M is 0 or a natural number of 1 or larger.
摘要翻译：提供了一种用于在隧道式MRI装置中确保舒适检查空间而不增加MRI装置的制造成本并牺牲其性能的技术。在具有中空状的外部导电元件的RF线圈和沿着外部导电元件沿轴向设置的条状导电元件，构成条形导电元件的曲折线设置在与外部导电元件不均匀的距离处以确保内部空间。为了在RF线圈的中心获得均匀的灵敏度，带状导电元件由N个连接的曲折线构成，并且条形导电元件的长度被调节，使得在带状导电元件在天线的谐振频率下共振，以（M + 1）×N-1的数量形成节点，其中M为0或自然数为1或更大。

15. 发明授权

US08947084B2 Antenna device and magnetic resonance imaging device 有权
标题翻译：天线装置和磁共振成像装置
公开(公告)号：US08947084B2
公开(公告)日：2015-02-03
申请号：US13125829
申请日：2009-07-22
申请人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Yukio Kaneko , Masayoshi Dohata
发明人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Yukio Kaneko , Masayoshi Dohata
IPC分类号： G01R33/44 , H01Q9/04 , G01R33/34 , G01R33/341 , A61B5/055
CPC分类号： G01R33/34046 , A61B5/055 , G01R33/34007 , G01R33/34053 , G01R33/34061 , G01R33/341
摘要： Manufacture cost and maintenance cost of RF coils of MRI devices are reduced without any limitation concerning size of the coils. By constituting an antenna device for magnetic resonance imaging devices with a cylindrical outer conductor, a looped ribbon-shaped conductor disposed inside the cylindrical outer conductor along the cylindrical surface, and a feed point for transmission and/or reception between the cylindrical conductor and the ribbon-shaped conductor, and disposing the ribbon-shaped conductor so that length thereof can be readily adjusted, there is provided an antenna device for magnetic resonance imaging devices that generates a magnetic field component perpendicular to the central axis of the cylinder at a desired resonance frequency and shows sensitivity without using capacitors and without being imposed any limitation concerning size in the diametral direction of the cylinder.
摘要翻译：降低了MRI装置的RF线圈的制造成本和维护成本，而对于线圈的尺寸没有任何限制。通过构成用于具有圆柱形外部导体的磁共振成像装置的天线装置，沿着圆柱形表面设置在圆柱形外部导体内的环状带状导体，以及用于在圆柱形导体和带状物之间传输和/或接收的馈电点并且设置带状导体以使得其长度可以容易地调整，提供了一种用于磁共振成像装置的天线装置，其以期望的共振频率产生垂直于圆柱体的中心轴线的磁场分量并且在不使用电容器的情况下显示灵敏度，并且不对气缸的直径方向上的尺寸施加任何限制。

16. 发明申请

US20110204890A1 ANTENNA DEVICE AND MAGNETIC RESONANCE IMAGING DEVICE 有权
标题翻译：天线装置和磁共振成像装置
公开(公告)号：US20110204890A1
公开(公告)日：2011-08-25
申请号：US13125829
申请日：2009-07-22
申请人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Yukio Kaneko , Masayoshi Dohata
发明人： Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Yukio Kaneko , Masayoshi Dohata
IPC分类号： G01R33/44 , H01Q9/04
CPC分类号： G01R33/34046 , A61B5/055 , G01R33/34007 , G01R33/34053 , G01R33/34061 , G01R33/341
摘要： Manufacture cost and maintenance cost of RF coils of MRI devices are reduced without any limitation concerning size of the coils. By constituting an antenna device for magnetic resonance imaging devices with a cylindrical outer conductor, a looped ribbon-shaped conductor disposed inside the cylindrical outer conductor along the cylindrical surface, and a feed point for transmission and/or reception between the cylindrical conductor and the ribbon-shaped conductor, and disposing the ribbon-shaped conductor so that length thereof can be readily adjusted, there is provided an antenna device for magnetic resonance imaging devices that generates a magnetic field component perpendicular to the central axis of the cylinder at a desired resonance frequency and shows sensitivity without using capacitors and without being imposed any limitation concerning size in the diametral direction of the cylinder.
摘要翻译：降低了MRI装置的RF线圈的制造成本和维护成本，而对于线圈的尺寸没有任何限制。通过构成用于具有圆柱形外部导体的磁共振成像装置的天线装置，沿着圆柱形表面设置在圆柱形外部导体内的环状带状导体，以及用于在圆柱形导体和带状物之间传输和/或接收的馈电点并且设置带状导体以使得其长度可以容易地调整，提供了一种用于磁共振成像装置的天线装置，其以期望的共振频率产生垂直于圆柱体的中心轴线的磁场分量并且在不使用电容器的情况下显示灵敏度，并且不对气缸的直径方向上的尺寸施加任何限制。

17. 发明申请

US20130069652A1 RF COIL AND MAGNETIC RESONANCE IMAGING DEVICE 审中-公开
标题翻译：射频线圈和磁共振成像装置
公开(公告)号：US20130069652A1
公开(公告)日：2013-03-21
申请号：US13522928
申请日：2011-01-25
申请人： Yosuke Otake , Yoshihisa Soutome , Yukio Kaneko , Yoshitaka Bito , Hisaaki Ochi , Koji Hirata
发明人： Yosuke Otake , Yoshihisa Soutome , Yukio Kaneko , Yoshitaka Bito , Hisaaki Ochi , Koji Hirata
IPC分类号： G01R33/34
CPC分类号： G01R33/3664 , G01R33/34053 , G01R33/34076 , G01R33/3415
摘要： There is a provided a technology of receiving a magnetic resonance signal highly sensitively and with a uniform sensitivity distribution in an RF coil of an MRI device which is an RF coil including a switch circuit of switching a circuit configuration. The RF coil of the MRI device of the present invention includes a switch circuit of switching a circuit configuration. Also, the switch circuit switches the circuit configuration by being driven by a control signal received by wireless. For that purpose, the switch circuit includes an antenna of receiving the control signal and a conversion circuit of converting an alternating current voltage received into a direct current voltage.
摘要翻译：提供了一种技术，其高灵敏度地接收磁共振信号，并且在作为包括切换电路配置的开关电路的RF线圈的MRI装置的RF线圈中具有均匀的灵敏度分布。本发明的MRI装置的RF线圈包括切换电路结构的开关电路。此外，开关电路通过由无线接收的控制信号驱动来切换电路配置。为此，开关电路包括接收控制信号的天线和将所接收的交流电压转换成直流电压的转换电路。

18. 发明申请

US20110267062A1 BALUN AND MAGNETIC RESONANCE IMAGING APPARATUS 有权
标题翻译：巴伦和磁共振成像装置
公开(公告)号：US20110267062A1
公开(公告)日：2011-11-03
申请号：US13142439
申请日：2010-01-28
申请人： Yosuke Otake , Yoshihisa Soutome , Yukio Kaneko , Yoshitaka Bito , Hisaaki Ochi , Koji Hirata
发明人： Yosuke Otake , Yoshihisa Soutome , Yukio Kaneko , Yoshitaka Bito , Hisaaki Ochi , Koji Hirata
IPC分类号： G01R33/32 , H03H7/42
CPC分类号： G01R33/3685
摘要： The present invention provides a technique for maintaining a function for effectively blocking common mode noise with a simple configuration, even in the case where unbalance occurs in characteristic impedance of a coaxial cable in an MRI apparatus, and improving the performance of an RF coil. In a circuit where a balun is established by parallel connection with the coaxial cable, multiple serial resonance circuits having different resonance frequencies are connected in parallel. A value of each constitutional element of each of the serial resonance circuits is adjusted in such a manner that the frequency for blocking the common mode noise of the entire balun falls into a range between the resonance frequencies of these serial resonance circuits.
摘要翻译：本发明提供一种技术，即使在MRI装置中的同轴电缆的特性阻抗发生不平衡的情况下，也能够提高RF线圈的性能的情况下，以简单的结构保持用于有效阻断共模噪声的功能。在通过与同轴电缆并联建立平衡 - 不平衡转换器的电路中，并联连接具有不同谐振频率的多个串联谐振电路。每个串联谐振电路的每个结构元件的值被调整为使得阻挡整个平衡 - 不平衡转换器的共模噪声的频率落入这些串联谐振电路的谐振频率之间的范围内。

19. 发明授权

US08803526B2 Balun and magnetic resonance imaging apparatus 有权
标题翻译：平衡和磁共振成像装置
公开(公告)号：US08803526B2
公开(公告)日：2014-08-12
申请号：US13142439
申请日：2010-01-28
申请人： Yosuke Otake , Yoshihisa Soutome , Yukio Kaneko , Yoshitaka Bito , Hisaaki Ochi , Koji Hirata
发明人： Yosuke Otake , Yoshihisa Soutome , Yukio Kaneko , Yoshitaka Bito , Hisaaki Ochi , Koji Hirata
IPC分类号： G01V3/00
CPC分类号： G01R33/3685
摘要： The present invention provides a technique for maintaining a function for effectively blocking common mode noise with a simple configuration, even in the case where unbalance occurs in characteristic impedance of a coaxial cable in an MRI apparatus, and improving the performance of an RF coil. In a circuit where a balun is established by parallel connection with the coaxial cable, multiple serial resonance circuits having different resonance frequencies are connected in parallel. A value of each constitutional element of each of the serial resonance circuits is adjusted in such a manner that the frequency for blocking the common mode noise of the entire balun falls into a range between the resonance frequencies of these serial resonance circuits.
摘要翻译：本发明提供一种技术，即使在MRI装置中的同轴电缆的特性阻抗发生不平衡的情况下，也能够提高RF线圈的性能的情况下，以简单的结构保持用于有效阻断共模噪声的功能。在通过与同轴电缆并联建立平衡 - 不平衡转换器的电路中，并联连接具有不同谐振频率的多个串联谐振电路。每个串联谐振电路的每个结构元件的值被调整为使得阻挡整个平衡 - 不平衡转换器的共模噪声的频率落入这些串联谐振电路的谐振频率之间的范围内。

20. 发明申请

US20110121834A1 HIGH-FREQUENCY COIL AND MAGNETIC RESONANCE IMAGING DEVICE 失效
标题翻译：高频线圈和磁共振成像装置
公开(公告)号：US20110121834A1
公开(公告)日：2011-05-26
申请号：US13054474
申请日：2009-07-22
申请人： Yoshihisa Soutome , Hideta Habara , Yoshitaka Bito
发明人： Yoshihisa Soutome , Hideta Habara , Yoshitaka Bito
IPC分类号： G01R33/44
CPC分类号： G01R33/365 , G01R33/3415 , G01R33/3657
摘要： There is provided a high-frequency coil of an MRI device, which can easily and highly reproducibly reduce electromagnetic coupling between adjacent surface coils among a plurality of surface coils disposed with intervals. An electromagnetic decoupling coil that can generate a magnetic flux for canceling a magnetic flux generated by one of the adjacent surface coils and interlinking with the other surface coil is disposed between the adjacent surface coils. The electromagnetic decoupling coil is provided with a capacitor, and is tuned by means of the capacitor so that the electromagnetic coupling should be minimized in such a range that the resonance frequency thereof should be lower than the resonance frequency of the surface coils.
摘要翻译：提供了一种MRI装置的高频线圈，其可以容易且高度可重复地减少间隔设置的多个表面线圈中的相邻表面线圈之间的电磁耦合。可以在相邻的表面线圈之间设置电磁去耦线圈，该电磁去耦线圈可以产生用于消除由相邻的表面线圈之一产生的磁通并与另一个表面线圈相互连接的磁通量。电磁去耦线圈设置有电容器，并通过电容器进行调谐，使得电磁耦合应在其共振频率应低于表面线圈的谐振频率的范围内最小化。

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