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1. 发明授权

US4560933A Apparatus for adjustably mounting coils of a magnet system for nuclear spin tomography 失效
标题翻译：用于可调节地安装用于核自旋断层扫描的磁体系统的线圈的装置
公开(公告)号：US4560933A
公开(公告)日：1985-12-24
申请号：US516249
申请日：1983-07-22
申请人： Helmut Forster , Horst Siebold , Karl-Georg Heinzelmann
发明人： Helmut Forster , Horst Siebold , Karl-Georg Heinzelmann
IPC分类号： A61B10/00 , A61B5/055 , G01R33/38 , G01R33/48 , H01F7/20 , A61B5/05
CPC分类号： G01R33/3802 , H01F7/20
摘要： An adjusting and holding assembly for magnet coils in a nuclear spin tomography system includes mechanical adjusting devices connected to a frame structure for the mutual alignment of the connected to a frame structure for the mutual alignment of the base field magnet coils. In order to enable a relatively simple adjustment of the individual magnet coils to produce a highly homogeneous base field, at least one of the magnet coils is rigidly connected to the frame structure, while each adjustable or positionable magnet coil is held at three points via at least one support device and three adjusting devices within the frame structure. Each support device comprises a support element in the form of a spherical sector rotatably mounted to a respective coil and slidably resting on a horizontal support surface of the frame structure. The support points of the adjustable magnet coils are longitudinally spaced from the center of gravity line of the respective magnet coil so that an additional tilting force is brought about.
摘要翻译：在核自动断层摄影系统中的用于磁体线圈的调整和保持组件包括连接到框架结构的机械调节装置，用于连接到框架结构的相互对准以便使基场磁体线圈相互对准。为了能够对各个磁体线圈进行相对简单的调整以产生高度均匀的基极场，至少一个磁体线圈刚性地连接到框架结构，而每个可调节或可定位的磁体线圈通过至少一个支撑装置和框架结构内的三个调节装置。每个支撑装置包括可旋转地安装到相应线圈并可滑动地搁置在框架结构的水平支撑表面上的球形扇形形式的支撑元件。可调电磁线圈的支撑点与各个磁体线圈的重心线纵向间隔开，从而产生附加的倾斜力。

2. 发明授权

US4593261A Device for cooling a magnet system 失效
标题翻译：用于冷却磁体系统的装置
公开(公告)号：US4593261A
公开(公告)日：1986-06-03
申请号：US696105
申请日：1985-01-29
申请人： Helmut Forster , Karl-Georg Heinzelmann , Horst Siebold , Jurgen Vetter
发明人： Helmut Forster , Karl-Georg Heinzelmann , Horst Siebold , Jurgen Vetter
IPC分类号： G01R33/20 , A61B5/055 , A61B10/00 , G01R33/3815 , H01F5/00 , H01F7/20 , H01F27/10
CPC分类号： H01F7/20 , H01F27/10
摘要： A device for cooling a magnet system, especially in an installation for nuclear spin tomography which magnet system comprises several annular magnet coil windings which are made of ribbons of normal conducting material and are connected at their end faces over a large area to cooling elements in a heat conducting manner, the cooling elements cooled by a cooling medium flowing in coolant lines under forced flow. To assure an effective and reliable cooling of the coil windings on each end face of a magnet coil winding, a predetermined number of identically designed cooling elements uniformly distributed in the circumferential direction is cemented on, each cooling element comprising at least a heat conduction plate of annular sector shape which is provided with a predetermined number of slots uniformly distributed in the circumferential direction and to which the coolant line is connected over several turns in a heat conducting manner.
摘要翻译：一种用于冷却磁体系统的装置，特别是在用于核自旋断层扫描的装置中，该磁体系统包括由正常导电材料的带制成的几个环形磁体线圈绕组，并且在其大面积上连接到冷却元件导热方式，冷却元件由在强制流动下在冷却剂管线中流动的冷却介质冷却。为了确保电磁线圈绕组的每个端面上的线圈绕组的有效和可靠的冷却，在圆周方向上均匀分布的预定数量的相同设计的冷却元件被胶合，每个冷却元件至少包括一个导热板环形扇形，其具有在圆周方向上均匀分布的预定数量的狭槽，并且冷却剂管线以热传导方式连接几匝。

3. 发明授权

US4758812A Frame structure for a magnet system for nuclear spin tomography 失效
标题翻译：用于核自旋断层扫描的磁体系统的框架结构
公开(公告)号：US4758812A
公开(公告)日：1988-07-19
申请号：US32763
申请日：1987-03-31
申请人： Helmut Forster , Horst Siebold
发明人： Helmut Forster , Horst Siebold
IPC分类号： G01R33/20 , A61B5/055 , A61B10/00 , G01R33/38 , G01R33/421 , H01F7/20 , H01F7/00
CPC分类号： G01R33/3802 , G01R33/381 , G01R33/421
摘要： A frame structure for supporting individual magnetic coils forming a magnet system used in nuclear spin tomography comprises several frame parts made from a ferromagnetic material to provide relatively simple magnetic shielding. The individual magnetic coils are concentrically aligned one behind the other along a common axis to form the magnet system. Several elongate beam, rod, or plate-shaped magnetic shielding elements extend parallel to the common axis and are evenly distributed in the circumferential direction around the magnet system thus forming a generally cylindrical surface. End-plate magnetic shielding parts having a central opening of predetermined radius are provided at the end faces of the cylindrical surface formed by the shielding elements to create a cage-like frame structure. Coil receiving elements can be used to rigidly connect the axis-parallel shielding elements with the individual magnetic coils.
摘要翻译：用于支撑形成用于核自旋断层摄影术的磁体系统的各个磁性线圈的框架结构包括由铁磁材料制成的几个框架部件，以提供相对简单的磁屏蔽。各个磁性线圈沿共同的轴线一个一个地彼此同心对准以形成磁体系统。几个细长的梁，杆或板状磁屏蔽元件平行于公共轴线延伸，并且围绕磁体系统在圆周方向上均匀分布，从而形成大致圆柱形的表面。在由屏蔽元件形成的圆筒形表面的端面处设置具有预定半径的中心开口的端板磁屏蔽部件，以形成笼状框架结构。线圈接收元件可用于将轴平行屏蔽元件与各个磁性线圈刚性连接。

4. 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。

5. 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.

6. 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。

7. 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。

8. 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.

9. 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）。

10. 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。

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