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1. 发明申请

US20060158291A1 Magnetic field generating device and method of shimming thereof 有权
标题翻译：磁场产生装置及其垫片的方法
公开(公告)号：US20060158291A1
公开(公告)日：2006-07-20
申请号：US11385380
申请日：2006-03-21
申请人： Jinhua Huang , Hongliang Lu
发明人： Jinhua Huang , Hongliang Lu
IPC分类号： H01F3/00
CPC分类号： G01R33/3873 , H01F7/0273
摘要： A magnetic field generating device is disclosed having an arrangement of permanent magnets, each permanent magnet (PM) having a north end and a south end, and each aligned in the same north-south orientation. The PM arrangement is configured to have a surface at the north polarity end, a surface at the south polarity end, or a surface at both ends. A layer of ferromagnetic material is securely disposed at one of the surfaces of the PM arrangement, the layer having a thickness equal to or less than about 15 millimeters.
摘要翻译：公开了一种磁场产生装置，其具有永磁体的布置，每个永磁体（PM）具有北端和南端，并且各自以相同的南北取向对准。 PM布置被配置为具有在北极端部的表面，在南极端部的表面或两端的表面。一层铁磁材料牢固地设置在PM布置的一个表面上，该层的厚度等于或小于约15毫米。

2. 发明申请

US20050231859A1 Methods and apparatus for protecting an MR imaging system 有权
标题翻译：用于保护MR成像系统的方法和装置
公开(公告)号：US20050231859A1
公开(公告)日：2005-10-20
申请号：US10826643
申请日：2004-04-16
申请人： Jinhua Huang
发明人： Jinhua Huang
IPC分类号： G01R33/36 , G01R33/3815 , H01F6/02 , H02H7/00
CPC分类号： G01R33/288 , G01R33/3815 , G01R33/421 , H02H7/001 , Y02E40/68
摘要： A method of protecting an MR imaging system including a plurality of coil groups includes connecting at least one first diode between terminals of a first coil group, connecting at least one second diode between terminals of a second coil group, wherein the second group is connected to the first coil group via a separation line, and connecting at least one quench heater between the separation line and the first and second diodes.
摘要翻译：保护包括多个线圈组的MR成像系统的方法包括将第一线圈组的端子之间的至少一个第一二极管连接在一起，将第二线圈组的端子之间的至少一个第二二极管连接在一起，其中第二组连接到所述第一线圈组经由分离线，并且在所述分离线与所述第一和第二二极管之间连接至少一个骤冷加热器。

3. 发明授权

US06844801B2 Methods and apparatus for adjusting center magnetic field of a magnetic field generator for MRI 失效
标题翻译：用于调整MRI磁场发生器中心磁场的方法和装置
公开(公告)号：US06844801B2
公开(公告)日：2005-01-18
申请号：US10407887
申请日：2003-04-04
申请人： Jinhua Huang , Bu-Xin Xu , Weijun Shen , Ronald Floyd Lochner
发明人： Jinhua Huang , Bu-Xin Xu , Weijun Shen , Ronald Floyd Lochner
IPC分类号： G01R33/383 , A61B5/055 , G01R33/3873 , H01F7/00
CPC分类号： G01R33/3873
摘要： A product line of MRI systems includes a first MRI system including a first yoke and a plurality of magnet blocks forming a first central assembly disposed on the first yoke. The product line also includes a second MRI system including a second yoke, a plurality of magnet blocks forming a second central assembly disposed on the second yoke and shaped the same as the first central assembly, and a first set of magnet blocks mounted to the second yoke at a periphery of the second central assembly.
摘要翻译： MRI系统的产品系列包括第一MRI系统，其包括第一磁轭和形成设置在第一磁轭上的第一中心组件的多个磁体块。产品线还包括第二MRI系统，其包括第二磁轭，多个磁体块，形成设置在第二磁轭上并与其成形为第一中心组件的第二中心组件，以及安装到第二磁体块的第一组磁体块轭在第二中心组件的周边。

4. 发明授权

US08514043B2 Systems and methods for passively shielding a magnetic field 有权
标题翻译：被动屏蔽磁场的系统和方法
公开(公告)号：US08514043B2
公开(公告)日：2013-08-20
申请号：US11225957
申请日：2005-09-14
申请人： Jian-She Wang , Jinhua Huang , Stephen R. Elgin
发明人： Jian-She Wang , Jinhua Huang , Stephen R. Elgin
IPC分类号： H01F7/00
CPC分类号： G01R33/421 , H01F6/00 , H01F27/365
摘要： A passive magnetic field shielding system for shielding a fringe magnetic field is described. The passive magnetic field shielding system includes a magnet configured to generate a uniform magnetic field, an imaging system with associated electronics coupled to the magnet, and a passive shield configured to reduce the strength of the fringing magnetic field to approximately five Gauss at a distance from the passive shield.
摘要翻译：描述了用于屏蔽边缘磁场的无源磁场屏蔽系统。被动磁场屏蔽系统包括被配置为产生均匀磁场的磁体，具有耦合到磁体的相关电子器件的成像系统以及被配置为将边缘磁场的强度降低到距离被动屏蔽。

5. 发明申请

US20050280487A1 MAGNETIC FIELD GENERATING DEVICE AND METHOD OF SHIMMING THEREOF 失效
标题翻译：磁场发生装置及其制造方法
公开(公告)号：US20050280487A1
公开(公告)日：2005-12-22
申请号：US10710130
申请日：2004-06-21
申请人： Jinhua Huang , Hongliang Lu
发明人： Jinhua Huang , Hongliang Lu
IPC分类号： G01R33/383 , G01R33/3873 , H01F7/02 , H02K21/12
CPC分类号： G01R33/3873 , H01F7/0273
摘要： A magnetic field generating device is disclosed having an arrangement of permanent magnets, each permanent magnet (PM) having a north end and a south end, and each aligned in the same north-south orientation. The PM arrangement is configured to have a surface at the north polarity end, a surface at the south polarity end, or a surface at both ends. A layer of ferromagnetic material is securely disposed at one of the surfaces of the PM arrangement, the layer having a thickness equal to or less than about 15 millimeters.
摘要翻译：公开了一种磁场产生装置，其具有永磁体的布置，每个永磁体（PM）具有北端和南端，并且各自以相同的南北取向对准。 PM布置被配置为具有在北极端部的表面，在南极端部的表面或两端的表面。一层铁磁材料牢固地设置在PM布置的一个表面上，该层的厚度等于或小于约15毫米。

6. 发明授权

US06960914B2 Methods and apparatus for imaging systems 失效
标题翻译：成像系统的方法和装置
公开(公告)号：US06960914B2
公开(公告)日：2005-11-01
申请号：US10607747
申请日：2003-06-27
申请人： Weijun Shen , Jinhua Huang
发明人： Weijun Shen , Jinhua Huang
IPC分类号： G01R33/389 , G01V3/00
CPC分类号： G01R33/389
摘要： A method of operating an imaging system having a main coil and a shield coil electromagnetically coupled to the main coil, wherein the method includes monitoring for an external environmental fluctuation of electromagnetism, and controlling current flow through the main and shield coils based upon the monitoring using a quench heater.
摘要翻译：一种操作具有与主线圈电磁耦合的主线圈和屏蔽线圈的成像系统的方法，其中所述方法包括监视电磁场的外部环境波动，以及基于使用所述主线圈和所述屏蔽线圈的监视来控制通过所述主屏蔽线圈的电流淬火加热器。

7. 发明授权

US06717781B2 Balanced quench protection circuit 有权
标题翻译：平衡淬火保护电路
公开(公告)号：US06717781B2
公开(公告)日：2004-04-06
申请号：US09682589
申请日：2001-09-25
申请人： Minfeng Xu , Xianrui Huang , Bu-Xin Xu , Jinhua Huang
发明人： Minfeng Xu , Xianrui Huang , Bu-Xin Xu , Jinhua Huang
IPC分类号： H02H700
CPC分类号： H01F6/02 , H01F6/008 , H02H7/001 , Y02E40/68
摘要： A superconducting magnet electrical circuit is provided for quench protection. A superconducting coil assemblage is provided including a plurality of spatially separated main and secondary magnet coil portions. The main magnet coil portions are connected in series to form at least one main coil series circuit. The secondary magnet coil portions are also connected in a series to form at least one secondary coil series circuit. At least one temperature limiting circuit is also provided. The temperature limiting circuit may be a quench heater circuit or a quench resistor circuit. The temperature limiting circuit has a plurality of quench heaters or a plurality of quench resistors connected with the superconducting coil assemblage. A superconductive switch is coupled with the superconducting coil assemblage.
摘要翻译：提供超导磁体电路用于淬火保护。提供了包括多个空间分离的主和次级磁体线圈部分的超导线圈组件。主电磁线圈部分串联连接以形成至少一个主线圈串联电路。次级电磁线圈部分也被串联连接以形成至少一个次级线圈串联电路。还提供至少一个温度限制电路。温度限制电路可以是淬火加热器电路或淬火电阻电路。温度限制电路具有与超导线圈组合件连接的多个骤冷加热器或多个骤冷电阻器。超导开关与超导线圈组合连接。

8. 发明授权

US06633215B2 Superconducting magnetic resonance imaging magnet assembly and method with reverse wire channel orientation 失效
标题翻译：超导磁共振成像磁体组件及反向导线方向的方法
公开(公告)号：US06633215B2
公开(公告)日：2003-10-14
申请号：US09681568
申请日：2001-05-01
申请人： Minfeng Xu , Michael Robert Eggleston , Stephen R. Elgin, II , Jinhua Huang
发明人： Minfeng Xu , Michael Robert Eggleston , Stephen R. Elgin, II , Jinhua Huang
IPC分类号： H01F720
CPC分类号： G01R33/3815 , G01R33/421 , Y10T29/49014
摘要： A superconducting magnetic resonance imaging magnet assembly is provided. The assembly includes an axial imaging bore to receive patients and a coil housing surrounding the axial bore. A main magnet coil assembly is disposed within the housing. The main magnet coil assembly includes a plurality of main magnet coils to produce a magnetic field. At least three pairs of superconductive coils are provided. In one aspect, each of the coils in at least one of the pairs comprises a superconductor wire carrying an electric current in a direction opposite to the direction of current carried by the coils of another of the superconductive pairs. The superconductor wire comprises a superconductor core and a stabilizer having a channel. The wire is wound so that the channel has a radially outward facing opening. In another embodiment, low-aspect-ratio coils are used for at least one of the pairs of superconductive coils with the outer diameter coil portion comprising a superconductor core and a stabilizer channel having a radially outward facing opening.
摘要翻译：提供超导磁共振成像磁体组件。组件包括用于接收患者的轴向成像孔和围绕轴向孔的线圈壳体。主磁体线圈组件设置在壳体内。主磁体线圈组件包括多个主磁体线圈以产生磁场。提供至少三对超导线圈。在一个方面，至少一个对中的每个线圈包括在与另一个超导对的线圈承载的电流方向相反的方向上承载电流的超导体线。超导线包括超导体芯和具有通道的稳定器。线缠绕，使得通道具有径向向外的开口。在另一个实施例中，低纵横比线圈用于至少一对超导线圈，外径线圈部分包括超导体芯和具有径向向外的开口的稳定器通道。

9. 发明授权

US07019609B2 Magnetic field generating device and method of shimming thereof 失效
公开(公告)号：US07019609B2
公开(公告)日：2006-03-28
申请号：US10710130
申请日：2004-06-21
申请人： Jinhua Huang , Hongliang Lu
发明人： Jinhua Huang , Hongliang Lu
IPC分类号： H01F1/00
CPC分类号： G01R33/3873 , H01F7/0273
摘要： A magnetic field generating device is disclosed having an arrangement of permanent magnets, each permanent magnet (PM) having a north end and a south end, and each aligned in the same north-south orientation. The PM arrangement is configured to have a surface at the north polarity end, a surface at the south polarity end, or a surface at both ends. A layer of ferromagnetic material is securely disposed at one of the surfaces of the PM arrangement, the layer having a thickness equal to or less than about 15 millimeters.

10. 发明授权

US07019525B2 Method and apparatus for magnetic resonance imaging 失效
标题翻译：用于磁共振成像的方法和装置
公开(公告)号：US07019525B2
公开(公告)日：2006-03-28
申请号：US10707711
申请日：2004-01-06
申请人： Jinhua Huang , Peter Jarvis
发明人： Jinhua Huang , Peter Jarvis
IPC分类号： G01V3/00
CPC分类号： G01R33/421
摘要： A magnetic field generator for producing a homogenous magnetic field region. The magnetic field generator comprises: a plurality of main magnet coils arranged in a cylindrical fashion; a plurality of shielding coils arranged in a cylindrical fashion, and located radially outward of the plurality of magnets; and wherein the main magnet coils and shielding coils are configured to shape a magnetic field which comprises at least one low fringe field region when in operation. A method for designing an MRI system that produces a low fringe field region. The method comprises: defining a solution space; defining a field of view, a center field and homogeneity requirements; defining fringe field requirements; and running an optimization algorithm to determine coil positions.
摘要翻译：一种用于产生均匀磁场区域的磁场发生器。磁场发生器包括：以圆柱形方式布置的多个主磁体线圈; 多个屏蔽线圈，其以圆柱形方式布置，并且位于所述多个磁体的径向外侧; 并且其中所述主磁体线圈和屏蔽线圈构造成在运行时形成包括至少一个低边缘场区域的磁场。一种用于设计产生低边缘场区域的MRI系统的方法。该方法包括：定义解空间; 定义视野，中心场和均匀性要求; 定义边缘场要求; 并运行优化算法来确定线圈位置。

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