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1. 发明授权

US5088185A Method for manufacturing gradient coil system for a nuclear magnetic resonance tomography apparatus 失效
标题翻译：用于制造核磁共振成像装置的梯度线圈系统的方法
公开(公告)号：US5088185A
公开(公告)日：1992-02-18
申请号：US643369
申请日：1991-01-22
申请人： Horst Siebold , Konrad Meier
发明人： Horst Siebold , Konrad Meier
IPC分类号： G01R33/20 , A61B5/055 , G01R33/385
CPC分类号： G01R33/385 , Y10T29/4902 , Y10T29/49071
摘要： A gradient coil system for a nuclear magnetic resonance tomography apparatus has a set of saddle coils disposed on a first cylindrical surface for generating the x-gradient, and a set of saddle coils disposed on a second, separate cylindrical surface for generating the y-gradient. The saddle coils in each set include three sub-coils having predetermined ampere turns, and formed by cable conductor wound exclusively by convex turns arranged in the same cylindrical surface. A middle coil of the three sub-coils has an arced portion facing the z=0 plane in an x-y-z coordinate system which approximates an arc of an ellipse.

2. 发明授权

US5012191A Gradient coil system for a nuclear magnetic resonance tomography apparatus 失效
标题翻译：用于核磁共振断层摄影装置的梯度线圈系统
公开(公告)号：US5012191A
公开(公告)日：1991-04-30
申请号：US442211
申请日：1989-11-28
申请人： Horst Siebold , Konrad Meier
发明人： Horst Siebold , Konrad Meier
IPC分类号： G01R33/20 , A61B5/055 , G01R33/385
CPC分类号： G01R33/385 , Y10T29/4902 , Y10T29/49071
摘要： A gradient coil system for a nuclear magnetic resonance tomography apparatus has a set of saddle coils disposed on a first cylindrical surface for generating the x-gradient, and a set of saddle coils disposed on a second, separate cylindrical surface for generating the y-gradient. The saddle coils in each set include three sub-coils having predetermined ampere turns, and formed by cable conductor wound exclusively by convex turns arranged in the same cylindrical surface. A middle coil of the three sub-coils has an arced portion facing the z.dbd.0 plane in an x-y-z coordinate system which approximates an arc of an ellipse.
摘要翻译：用于核磁共振断层摄影装置的梯度线圈系统具有设置在用于产生x梯度的第一圆柱形表面上的一组鞍形线圈，以及一组鞍形线圈，设置在第二分离的圆柱形表面上，用于产生y梯度。每组中的鞍形线圈包括具有预定安培匝数的三个子线圈，并且由仅布置在相同圆柱形表面中的凸匝缠绕的电缆导体形成。三个子线圈的中间线圈在x-y-z坐标系中具有面向z = 0平面的弧形部分，其近似椭圆弧。

3. 发明授权

US4636729A Gradient coil system for a nuclear spin tomography installation 失效
标题翻译：用于核自旋断层摄影装置的梯度线圈系统
公开(公告)号：US4636729A
公开(公告)日：1987-01-13
申请号：US696104
申请日：1985-01-29
申请人： Arnolf Maurer , Horst Siebold
发明人： Arnolf Maurer , Horst Siebold
IPC分类号： A61B10/00 , A61B5/055 , G01R33/20 , G01R33/385 , H01F5/00 , H01F7/20
CPC分类号： H01F7/20 , G01R33/385 , G01R33/3854 , Y10S505/844
摘要： The gradient coil system for a nuclear spin tomography installation encloses a hollow cylindrical support body, the cylinder axis of which extends in the z direction of an orthogonal x-y-z coordinate system with the coordinate origin in the imaging center, in which direction also the magnetic field B.sub.z of a base generating a field gradient G.sub.z, at field magnet is oriented. The gradient coil system contains for least two ring-shaped individual coils which are arranged symmetrically to the x-y plane extending through the imaging center, and furthermore, pairs of saddle-shaped individual coils arranged symmetrically to this plane, for generating field gradients G.sub.x and G.sub.y. In this gradient coil system, the sound level caused in the hollow cylindrical support body is reduced by rigidly connecting the prefabricated G.sub.x and G.sub.y gradient coils which lie on one side relative to the x-y symmetry plane to each other to form self-supporting partial baskets and by means of several non-magnetic carrier elements extending in the z direction forming a common self-supporting coil basket from these partial baskets to which the prefabricated G.sub.z gradient coils are fastened; and attaching this coil basket to the carrier body via insulating elastic support elements.
摘要翻译：用于核自旋断层摄影装置的梯度线圈系统包围中空圆柱形支撑体，其圆柱轴线在垂直xyz坐标系的z方向上延伸，其中坐标原点在成像中心，在该方向上也是磁场Bz 在场磁体上产生场梯度Gz的基极被定向。梯度线圈系统包含至少两个环形的单独的线圈，其对称地延伸穿过成像中心的xy平面，此外，对对称地布置在该平面上的鞍形单独线圈，用于产生场梯度Gx和Gy 。在该梯度线圈系统中，通过将位于相对于xy对称平面的一侧上的预制的Gx和Gy梯度线圈彼此刚性地连接以形成自支撑部分篮子，从而减小了在中空圆柱形支撑体中引起的声级，并且通过在z方向上延伸的几个非磁性载体元件，从预制的Gz梯度线圈固定到这些部分篮上形成共同的自支撑线圈篮; 并通过绝缘弹性支撑元件将该线圈篮安装到承载体上。

4. 发明授权

US06600803B2 Computed tomography apparatus and method for operating same 失效
公开(公告)号：US06600803B2
公开(公告)日：2003-07-29
申请号：US09968152
申请日：2001-10-01
申请人： Herbert Bruder , Heinrich Seifert , Horst Siebold
发明人： Herbert Bruder , Heinrich Seifert , Horst Siebold
IPC分类号： H05G160
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4233
摘要： In a computed tomography system equipped with a data-acquisition system and a method for operating such a computed tomography system, the computed tomography system has a radiation detector with at least one linear detector array composed of a row several detector elements aligned adjacent to one another. The data-acquisition system reads out the detector elements and forms difference signals from signals read out from pairs of adjacent detector elements.

5. 发明授权

US5814993A Magnet arrangement for a diagnostic nuclear magnetic resonance apparatus 失效
标题翻译：用于诊断核磁共振装置的磁铁装置
公开(公告)号：US5814993A
公开(公告)日：1998-09-29
申请号：US819777
申请日：1997-03-18
申请人： Georg Frese , Horst Siebold
发明人： Georg Frese , Horst Siebold
IPC分类号： G01R33/381 , A61B5/055 , G01R33/38 , G01R33/385 , H01F6/00 , G01V3/00
CPC分类号： G01R33/381 , G01R33/3806 , G01R33/3815
摘要： A magnet arrangement for a diagnostic nuclear magnetic resonance apparatus has a first system for generating a uniform magnetic field in a first imaging volume, the first imaging volume being arranged inside the first system, and a second system for generating a uniform magnetic field in a second imaging volume is in interactive connection with the first system. The second imaging volume is arranged between the first system and the second system.
摘要翻译：用于诊断核磁共振装置的磁体装置具有用于在第一成像体积中产生均匀磁场的第一系统，第一成像体积布置在第一系统内部，第二系统用于在第二系统中产生均匀的磁场成像体积与第一系统交互式连接。第二成像体积被布置在第一系统和第二系统之间。

6. 发明授权

US5144241A Circularly polarizing RF antenna for an MRI apparatus having a C-magnet 失效
标题翻译：用于具有C-MAGNET的MRI装置的圆周极化RF天线
公开(公告)号：US5144241A
公开(公告)日：1992-09-01
申请号：US567739
申请日：1990-08-15
申请人： Ralph Oppelt , Wilhelm Duerr , Horst Siebold
发明人： Ralph Oppelt , Wilhelm Duerr , Horst Siebold
IPC分类号： G01R33/32 , A61B5/055 , G01R33/34 , G01R33/343
CPC分类号： G01R33/343
摘要： A circularly polarizing RF antenna suitable for use in an MRI apparatus for obtaining tomograms of an examination subject includes two antenna systems, each having a winding, having two lateral legs and a middle leg, and a return path which form a resonant circuit in combination with one or more resonant capacitors. The middle legs of the two antenna systems are disposed so that they cross one another. One or more decoupling capacitors are provided between the two antenna systems. A circularly polarizing antenna for a magnetic resonance imaging system is thus obtained having a magnetic field vector in the imaging region which rotates in planes parallel to the pole surfaces of a C-shaped magnet which generates the fundamental magnetic field in the magnetic resonance imaging apparatus.
摘要翻译：适用于MRI装置中用于获取检查对象的断层图像的圆偏振RF天线包括两个天线系统，每个天线系统具有绕组，具有两个横向腿和中间支腿，以及一个形成谐振电路的返回路径，与一个或多个谐振电容器。两个天线系统的中间腿被布置成使得它们彼此交叉。在两个天线系统之间提供一个或多个去耦电容器。因此，获得了一种用于磁共振成像系统的圆极化天线，其在成像区域中具有磁场矢量，该磁场矢量在平行于在磁共振成像装置中产生基本磁场的C形磁体的极面平行的平面中旋转。

7. 发明授权

US5729188A Homogeneous field magnet with at least one pole plate to be mechanically aligned 失效
标题翻译：具有至少一个极板的均匀场磁体被机械对准
公开(公告)号：US5729188A
公开(公告)日：1998-03-17
申请号：US798495
申请日：1991-11-26
申请人： Horst Siebold , Gunter Ries , Rudolf Rockelein
发明人： Horst Siebold , Gunter Ries , Rudolf Rockelein
IPC分类号： G01R33/20 , G01R33/383 , H01F7/02 , H01F7/20 , H01F7/00
CPC分类号： H01F7/0278 , G01R33/383
摘要： A magnet contains a magnetic yoke and two pole shoes, between which a magnetic field of great homogeneity is formed. The pole shoes are provided with special pole plates. At least one pole plate (11d) is separated from a base part (11b) facing the yoke by a narrow correction air gap (15), and can be aligned by means of mechanical setting devices. According to the invention, each pole shoe (11) has a bead-like edge piece (11c) for field correction at its edge area (17b), which surrounds an inner pole shoe area (17a). In this region, the pole plate (11d), which can be aligned laterally separated from the edge piece (21).
摘要翻译：磁体包含磁轭和两个极靴，在其间形成大的均匀性的磁场。极靴配有专用极板。至少一个极板（11d）通过窄的校正气隙（15）与面向磁轭的基座部分（11b）分离，并且可以通过机械设置装置对准。根据本发明，每个极靴（11）具有用于在其边缘区域（17b）处进行场校正的珠状边缘片（11c），其围绕内极靴区域（17a）。在该区域中，可以与边缘片（21）横向分离的极板（11d）。

8. 发明授权

US5128615A Resonator for a magnetic resonance imaging apparatus 失效
标题翻译：用于磁共振成像装置的谐振器
公开(公告)号：US5128615A
公开(公告)日：1992-07-07
申请号：US623210
申请日：1990-12-06
申请人： Ralph Oppelt , Wilhelm Duerr , Horst Siebold
发明人： Ralph Oppelt , Wilhelm Duerr , Horst Siebold
IPC分类号： G01R33/32 , A61B5/055 , G01R33/34 , G01R33/341
CPC分类号： G01R33/3678 , G01R33/34 , G01R33/341
摘要： A resonator for use in a magnetic resonance imaging apparatus for transmitting and receiving high frequency signals is formed by a combination of two antenna sub-systems, which generate respective magnetic fields which are perpendicular to each other, with the currents in the sub-system being phase-shifted by 90.degree. relative to each other, and each sub-system includes a capacitance which defines the resonant frequency. Each of the sub-systems forms a current loop, the current loops containing a common current network and a common base plate, which serves as a return path for both current loops. The junctions of the current network are connected via the resonant capacitances to the base plate, which consists of electrically conductive material. A circularly polarizing resonator is achieved for the transversal, fundamental field of the imaging apparatus, with the resonator also being capable of use as a surface resonator if the spacing between the current network and the base plate is small.
摘要翻译：用于发送和接收高频信号的磁共振成像装置的谐振器由两个天线子系统的组合形成，两个天线子系统产生彼此垂直的各个磁场，子系统中的电流为相对于彼此相移90度，并且每个子系统包括限定谐振频率的电容。每个子系统形成电流回路，电流回路包含公共的当前网络和公共基板，其作为两个电流回路的返回路径。当前网络的接点通过谐振电容连接到由导电材料组成的基板。对于成像装置的横向基本场，实现圆偏振谐振器，如果当前网络和基板之间的间隔小，则谐振器也能够用作表面谐振器。

9. 发明授权

US4881035A Magnetic structural arrangement of an installation for nuclear magnetic resonance tomography with superconducting background field coils and normal-conducting gradient coils 失效
标题翻译：具有超导背景场线圈和正常导通梯度线圈的核磁共振断层摄影装置的磁结构布置
公开(公告)号：US4881035A
公开(公告)日：1989-11-14
申请号：US264775
申请日：1988-10-28
申请人： Horst Siebold
发明人： Horst Siebold
IPC分类号： G01R33/20 , A61B5/055 , A61B10/00 , G01R33/38 , G01R33/3815 , G01R33/385 , G01R33/421 , H01F7/20
CPC分类号： G01R33/3815 , G01R33/385 , G01R33/421 , G01R33/4215
摘要： Magnetic structural arrangement of an installation for nuclear magnetic resonance tomography with superconducting background field coils and normally conducting gradient coils. The magnetic structural arrangement contains superconducting coils cooled by a cryogenic medium for generating a homogeneous magnetic background field, normally conducting coils within the inner space bounded by the background field coils for developing magnetic field gradients, and at least one cooled radiation shield of an electrically and thermally conducting material which is disposed between the gradient coils and the background field coils. In such a structural arrangement the danger exists that eddy currents set up in the radiation shield distort the gradient fields and/or these gradient fields generate undesired heat in the region of the background field coils. To solve this problem, on the side of the background field coils facing the inner space, a tubular shielding structure is disposed which at least contains superconducting material of the second kind and is thermally coupled to the cryogenic medium of the background field coils, and the radiation shield is designed to suppress eddy currents induced in it at least by the gradient coils. The shielding structure can be formed, in particular, of several pre-fabricated shield elements. The magnetic structural arrangement is intended for installations for nuclear magnetic resonance tomography.
摘要翻译：具有超导背景场线圈和正常导电梯度线圈的核磁共振断层摄影装置的磁结构布置。磁性结构布置包含由低温介质冷却的超导线圈，用于产生均匀的磁背景场，在由用于显现磁场梯度的背景场线圈限定的内部空间内的正常导电线圈，以及至少一个电和设置在梯度线圈和背景场线圈之间的导热材料。在这样的结构布置中，存在设置在辐射屏蔽中的涡流扭曲梯度场和/或这些梯度场在背景场线圈的区域中产生不期望的热的危险。为了解决这个问题，在面向内部空间的背景场线圈的一侧，设置管状屏蔽结构，其至少包含第二种超导材料，并且与背景场线圈的低温介质热耦合，辐射屏蔽被设计成抑制至少由梯度线圈引起的涡电流。屏蔽结构可以特别地形成几个预制的屏蔽元件。磁结构布置用于核磁共振断层摄影的安装。

10. 发明授权

US4799017A Background field magnet for image generating devices using nuclear spin resonance 失效
标题翻译：用于使用核自旋共振的图像产生装置的背景场磁体
公开(公告)号：US4799017A
公开(公告)日：1989-01-17
申请号：US24814
申请日：1987-03-12
申请人： Horst Siebold , Franz Strahwald
发明人： Horst Siebold , Franz Strahwald
IPC分类号： G01R33/381 , A61B5/055 , A61B10/00 , G01R33/3815 , G01R33/385 , G01R33/3875 , H01F7/20 , G01R33/20
CPC分类号： G01R33/3815 , G01R33/3875
摘要： A background field magnet for image transmitting devices of nuclear spin tomography is designed for the generation of a magnetic background field of predetermined first field strength and contains on a tubular coil support, and six super-conductive single coils which are arranged in pairs symmetrically with respect to a plane of symmetry at predetermined median distances from the plane. The coil support is also suitable for the generation of a second field strength which is smaller than the first field. According to the invention, it is provided that on the coil support (25) the coils (11, 12, 14) are applied with the same median distances (z.sub.1, z.sub.2. z.sub.4) with respect to the plane of symmetry (S), however, with reduced winding numbers N.sub.1 ', N.sub.2 ', N.sub.2 '), that additionally a pair (P3) of serially switched auxiliary coils (13) is provided which each is placed in the vicinity of the outer single coils (14) on the coil former (25) and that with given reduced winding number (N.sub.4 ') of the outer single coils ( 14) under consideration of their original outer radius (R.sub.4) and a change of the conductor cross section (from q.sub.4 to q.sub.4 ') as well as with the median distance (z.sub.3) and the center radius (R.sub.3) of the auxiliary coils (13) given, the further winding numbers (N.sub.1 ', N.sub.2 ', N.sub.3 ') of the corresponding coils (11 to 13) by using the winding number (N.sub.1, N.sub.2, N.sub.4) resulting for the first field strength have to be determined according to given mathematical relations. ,
摘要翻译：用于核自旋断层摄影的图像传输装置的背景场磁体设计用于产生预定的第一场强的磁背景场，并且包含管状线圈支架和六个超导单体线圈，其相对地对称地排列成对以距平面预定中心距离的对称平面。线圈支架也适用于产生小于第一场的第二场强。根据本发明，提供在线圈支撑件（25）上的线圈（11,12,14）相对于对称平面（S）具有相同的中间距离（z1，z2，z4）然而，随着减少的绕组数N1'，N2'，N2'），另外还提供了一对（P3）串联切换的辅助线圈（13），它们分别放置在外部单个线圈（14）附近线圈架（25），考虑到其原始外半径（R4）和外部单线圈（14）的绕组数（N4'）减小，导体截面（从q4到q4'）的变化为与通过给定的辅助线圈（13）的中间距离（z3）和中心半径（R3）一样，通过使用相应的线圈（11至13）的另外的绕组数（N1'，N2'，N3'）必须根据给定的数学关系确定第一场强产生的绕组数（N1，N2，N4）。

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