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21. 发明授权

US5410288A Persistent superconducting switch for a superconducting magnet for imaging human limbs 失效
标题翻译：用于成像人体肢体的超导磁体的持续超导开关
公开(公告)号：US5410288A
公开(公告)日：1995-04-25
申请号：US235959
申请日：1994-05-02
申请人： Bizhan Dorri , Evangelos T. Laskaris , Kenneth G. Herd
发明人： Bizhan Dorri , Evangelos T. Laskaris , Kenneth G. Herd
IPC分类号： G01R33/3815 , H01B12/00 , H01F6/00 , H01L39/02 , H01L39/20 , H01F7/22
CPC分类号： H01L39/02 , G01R33/3815 , H01F6/003 , H01L39/20
摘要： A superconductive magnet subassembly has a single unbroken length of superconductive conductor which has a mid portion wound so as to define at least one superconductive magnetic coil and which has two end portions superconductively joined together by a superconductive joint. A superconductive switch is at least partially defined by the two end portions and by a heater for controllably heating the two end portions.
摘要翻译：超导磁体子组件具有单个不间断的超导导体，其中间部分被缠绕以限定至少一个超导磁性线圈，并且具有由超导接头超导地连接在一起的两个端部。超导开关至少部分地由两个端部限定，并且由用于可控制地加热两个端部的加热器限定。

22. 发明授权

US5396171A Field mapping fixture for a superconducting magnet for imaging human limbs 失效
标题翻译：用于成像人体肢体的超导磁体的场映射夹具
公开(公告)号：US5396171A
公开(公告)日：1995-03-07
申请号：US000345
申请日：1993-01-04
申请人： Bizhan Dorri , Evangelos T. Laskaris , Kenneth G. Herd , Raymond E. Gabis
发明人： Bizhan Dorri , Evangelos T. Laskaris , Kenneth G. Herd , Raymond E. Gabis
IPC分类号： G01R33/24 , G01R33/28
CPC分类号： G01R33/24
摘要： This invention relates to a field mapping fixture for mapping the magnetic fields of a superconducting magnet. Such structures of this type, generally, are capable of measuring the magnetic fields of a relatively small imaging volume.
摘要翻译：本发明涉及用于映射超导磁体的磁场的场映射夹具。这种类型的这种结构通常能够测量相对小的成像体积的磁场。

23. 发明授权

US5253413A Method for making a superconducting joint for a superconducting magnet which images human limbs 失效
标题翻译：制造超导磁体超导接头的方法，该超导磁体对人体肢体进行成像
公开(公告)号：US5253413A
公开(公告)日：1993-10-19
申请号：US347
申请日：1993-01-04
申请人： Bizhan Dorri , Evangelos T. Laskaris , Kenneth G. Herd , Richard A. Ranze
发明人： Bizhan Dorri , Evangelos T. Laskaris , Kenneth G. Herd , Richard A. Ranze
IPC分类号： H01L39/02 , H01L39/24
CPC分类号： H01L39/02 , Y10S505/925 , Y10S505/926 , Y10S505/927 , Y10T29/49014 , Y10T29/49194
摘要： This invention relates to a superconducting joint which is more commonly referred to as, a pigtail joint, for use in superconducting magnets. Such structures of this type, generally, exhibit total superconducting behavior at temperatures below the transition value of the superconducting joint and have high electrical resistance at temperatures above the transition point of the superconducting joint.
摘要翻译：本发明涉及一种超导接头，该超导接头通常被称为用于超导磁体的辫状接头。这种类型的这种结构通常在低于超导接头的转变值的温度下表现出全超导行为，并且在高于超导接头的转变点的温度下具有高的电阻。

24. 发明授权

US5278502A Refrigerated superconducting MR magnet with integrated cryogenic gradient coils 失效
标题翻译：具有集成低温梯度线圈的冷冻超导MR磁体
公开(公告)号：US5278502A
公开(公告)日：1994-01-11
申请号：US759387
申请日：1991-09-13
申请人： Evangelos T. Laskaris , Bizhan Dorri , Mark E. Vermilyea , Otward M. Mueller
发明人： Evangelos T. Laskaris , Bizhan Dorri , Mark E. Vermilyea , Otward M. Mueller
IPC分类号： G01R33/3815 , G01R33/385 , G01R33/3873 , G01R33/422 , G01V3/00
CPC分类号： G01R33/385 , G01R33/3815 , G01R33/3873 , G01R33/422 , G01R33/3856
摘要： This invention relates to refrigerated superconducting MR magnets having integrated cryogenic gradient coils. In particular, the amount of eddy currents produced by the magnet are substantially reduced while reducing the size and weight, and, therefore, the cost of the superconducting magnet required to produce an acceptable MR image.
摘要翻译：本发明涉及具有集成的低温梯度线圈的冷冻超导MR磁体。特别地，磁体产生的涡流的量大大减小，同时减小了尺寸和重量，并因此降低了产生可接受的MR图像所需的超导磁体的成本。

25. 发明授权

US5225782A Eddy current free MRI magnet with integrated gradient coils 失效
标题翻译：具有积分梯度线圈的涡流无磁共振磁铁
公开(公告)号：US5225782A
公开(公告)日：1993-07-06
申请号：US759389
申请日：1991-09-13
申请人： Evangelos T. Laskaris , Peter B. Roemer , Bizhan Dorri , Mark E. Vermilyea
发明人： Evangelos T. Laskaris , Peter B. Roemer , Bizhan Dorri , Mark E. Vermilyea
IPC分类号： G01R33/3815 , G01R33/385 , G01R33/421
CPC分类号： G01R33/3815 , G01R33/385 , G01R33/421
摘要： This invention relates to refrigerated superconducting eddy current free MR magnets having integrated gradient coils. In particular, the amount of resultant eddy currents produced by the magnet are substantially reduced while reducing the size and weight, and, therefore, the cost of the superconducting magnet required to produce an acceptable MR image.
摘要翻译：本发明涉及具有积分梯度线圈的冷冻超导无涡流MR磁体。特别地，由磁体产生的涡流的量大大降低，同时减小了尺寸和重量，并因此降低了产生可接受的MR图像所需的超导磁体的成本。

26. 发明授权

US5179338A Refrigerated superconducting MR magnet with integrated gradient coils 失效
标题翻译：具有集成梯度线圈的冷冻超导MR磁体
公开(公告)号：US5179338A
公开(公告)日：1993-01-12
申请号：US759337
申请日：1991-09-13
申请人： Evangelos T. Laskaris , Peter B. Roemer , Bizhan Dorri , Mark E. Vermilyea
发明人： Evangelos T. Laskaris , Peter B. Roemer , Bizhan Dorri , Mark E. Vermilyea
IPC分类号： G01R33/3815 , G01R33/385 , G01R33/3873 , G01R33/422
CPC分类号： G01R33/385 , G01R33/3815 , G01R33/3873 , G01R33/422
摘要： The invention relates to refrigerated superconducting MR magnets having integrated gradient coils. In particular, the amount of eddy currents produced by the magnet are substantially reduced while reducing the size and weight, and, therefore, the cost of the superconducting magnet required to produce an MR image.
摘要翻译：本发明涉及具有积分梯度线圈的冷冻超导MR磁体。特别地，磁体产生的涡流的量大大减小，同时减小了产生MR图像所需的超导磁体的尺寸和重量，并因此降低了超导磁体的成本。

27. 发明申请

US20100277170A1 HEAT PIPE COOLED SUERCONDUCTING MAGNETS WITH CERAMIC COIL FORMS 有权
标题翻译：热管冷却带陶瓷线圈的磁铁
公开(公告)号：US20100277170A1
公开(公告)日：2010-11-04
申请号：US12268205
申请日：2008-11-10
申请人： Xianrui Huang , Bulent Aksel , Kathleen M. Amm , Evangelos T. Laskaris , Ernst W. Stautner , Paul S. Thompson , Anbo Wu , Minfeng Xu , Yan Zhao
发明人： Xianrui Huang , Bulent Aksel , Kathleen M. Amm , Evangelos T. Laskaris , Ernst W. Stautner , Paul S. Thompson , Anbo Wu , Minfeng Xu , Yan Zhao
IPC分类号： G01R33/48 , G01R33/44
CPC分类号： G01R33/3815 , G01R33/3802 , G01R33/3804
摘要： A system and method for a magnetic resonance (MR) imaging system includes a coil form, at least one magnet positioned about the coil form and configured to generate a magnetic field, at least one gradient coil for manipulating the magnetic field generated by the at least one magnet by way of a gradient field, and a heat pipe thermally connected to the coil form and having a cryogen therein. The MR imaging system also includes a cryocooler connected to the heat pipe to cool the heat pipe and the cryogen, wherein the coil form is comprised of a thermally conductive material in which eddy currents are substantially reduced during operation of the at least one gradient coil. The present invention has been described in terms of the preferred embodiment, and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
摘要翻译：用于磁共振（MR）成像系统的系统和方法包括线圈形式，围绕线圈形状定位并被配置为产生磁场的至少一个磁体，至少一个梯度线圈，用于操纵由至少一个通过梯度场的一个磁体，以及热连接到线圈形式并且在其中具有冷冻剂的热管。 MR成像系统还包括连接到热管以冷却热管和冷冻剂的低温冷却器，其中线圈形式由导热材料组成，其中涡流在至少一个梯度线圈的操作期间显着减小。已经根据优选实施例描述了本发明，并且认识到除了明确说明的那些之外的等同物，替代方案和修改是可能的并且在所附权利要求的范围内。

28. 发明申请

US20100242500A1 THERMAL SWITCH FOR SUPERCONDUCTING MAGNET COOLING SYSTEM 审中-公开
标题翻译：超级磁铁冷却系统用热开关
公开(公告)号：US20100242500A1
公开(公告)日：2010-09-30
申请号：US11530267
申请日：2006-09-08
申请人： Evangelos T. Laskaris , Kathleen M. Amm , David Thomas Ryan , Xianrui Huang , J. Anne Ryan
发明人： Evangelos T. Laskaris , Kathleen M. Amm , David Thomas Ryan , Xianrui Huang , J. Anne Ryan
IPC分类号： F25B19/00 , G01R33/48
CPC分类号： F28D15/02 , F17C2270/0527 , F25D19/006 , H01F6/04 , Y02E60/321
摘要： The present invention provides an apparatus and method for automatically disconnecting a cryocooler from a cold mass reservoir of a MR system. A cryocooler thermal link includes a first end plate configured to be thermally connected to a cryocooler and a second end plate configured to be thermally connected to a cold mass. A wall encloses a space between the first and the second end plates, the wall having a first end attached to the first end plate and a second end attached to the second end plate. A working fluid is positioned in the space.
摘要翻译：本发明提供了一种用于将低温冷却器与MR系统的冷质储存器自动断开的装置和方法。低温冷却器热连接件包括构造成热连接到低温冷却器的第一端板和被配置为热连接到冷块的第二端板。壁围绕第一和第二端板之间的空间，壁具有附接到第一端板的第一端和附接到第二端板的第二端。工作流体位于空间中。

29. 发明授权

US5574417A Open MRI magnet with homogeneous imaging volume 失效
标题翻译：打开具有均匀成像体积的MRI磁体
公开(公告)号：US5574417A
公开(公告)日：1996-11-12
申请号：US547002
申请日：1995-10-23
申请人： Bizhan Dorri , Evangelos T. Laskaris
发明人： Bizhan Dorri , Evangelos T. Laskaris
IPC分类号： G01R33/38 , G01R33/3815 , H01F7/22 , G01V3/00
CPC分类号： G01R33/3806 , G01R33/3815
摘要： An open magnetic resonance imaging (MRI) magnet having first and second spaced-apart superconductive coil assemblies each including a toroidal-shaped coil housing containing a superconductive main coil. A generally annular-shaped permanent magnet array is associated with each coil assembly, being generally coaxially aligned with the associated coil assembly and being spaced radially inward and radially apart from the associated coil assembly's superconductive main coil. The permanent magnet arrays overcome the gross magnetic field distortions in the imaging volume of the superconductive main coils (created by the open space between the magnet's superconductive coil assemblies) to produce a magnetic field of high uniformity within the imaging volume.
摘要翻译：一种具有第一和第二间隔开的超导线圈组件的开放式磁共振成像（MRI）磁体，每个包括包含超导主线圈的环形线圈壳体。大致环形的永磁体阵列与每个线圈组件相关联，其大体上与相关联的线圈组件同轴对准并且相对于相关联的线圈组件的超导主线圈径向向内和径向间隔开。永磁体阵列克服了超导主线圈（由磁体超导线圈组件之间的开放空间产生）的成像体积中的总磁场失真，从而在成像体积内产生高均匀性的磁场。

30. 发明授权

US5568102A Closed superconductive magnet with homogeneous imaging volume 失效
标题翻译：封闭的超导磁体具有均匀的成像体积
公开(公告)号：US5568102A
公开(公告)日：1996-10-22
申请号：US603520
申请日：1996-02-20
申请人： Bizhan Dorri , Evangelos T. Laskaris , Michele D. Ogle
发明人： Bizhan Dorri , Evangelos T. Laskaris , Michele D. Ogle
IPC分类号： G01R33/3815 , G01R33/3873 , H01F6/06 , G01V3/00
CPC分类号： G01R33/3815 , G01R33/3873
摘要： A closed magnetic resonance imaging (MRI) magnet has a single superconductive coil assembly including a toroidal-shaped coil housing containing a pair of superconductive main coils and at least one additional superconductive main coil. A pair of generally annular-shaped permanent magnet arrays is spaced radially inward and apart from the superconductive main coils. The permanent magnet arrays allow the design of a shorter MRI magnet because the permanent magnet arrays overcome the gross magnetic field distortions in the imaging volume of the magnet (created by removing some of the additional longitudinally-outermost superconductive main coils, otherwise used in the magnet, to make the magnet shorter) to produce a magnetic field of high uniformity within the imaging volume.
摘要翻译：闭合磁共振成像（MRI）磁体具有单个超导线圈组件，其包括包含一对超导主线圈和至少一个额外的超导主线圈的环形线圈壳体。一对大致环形的永磁体阵列径向向内并与超导主线圈隔开。永磁体阵列允许设计较短的MRI磁体，因为永久磁体阵列克服了磁体成像体积中的总磁场失真（通过去除一些附加的纵向最外面的超导主线圈而产生，否则在磁体中使用，以使磁体更短）以在成像体积内产生高均匀性的磁场。

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