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1. 发明授权

US07532008B2 Material having magnetic permeability at R.F. frequency 失效
标题翻译：材料在R.F.具有导磁率频率
公开(公告)号：US07532008B2
公开(公告)日：2009-05-12
申请号：US10311962
申请日：2001-06-20
申请人： John Brian Pendry , Ian Robert Young , Michael Charles Keogh Wiltshire , Joseph Vilmos Hajnal , David James Larkman , David John Gilderdale
发明人： John Brian Pendry , Ian Robert Young , Michael Charles Keogh Wiltshire , Joseph Vilmos Hajnal , David James Larkman , David John Gilderdale
IPC分类号： G01V3/00
CPC分类号： H01Q3/44 , H01Q19/062
摘要： A material having magnetic permeability at r.f. frequency, for example a microstructured magnetic material has a magnetic permeability of negative value but unity magnitude over a particular r.f. frequency range. The singularity in the flux pattern has the result that magnetic resonant disturbances in a plane C,E normal to the line C,D are focussed into a plane D,F also normal to the line C,D and vice versa. This is particularly applicable to magnetic resonance apparatus, since the material can be used to transfer the r.f. magnetic flux distribution in a target region in a patient, for example at C,E to D,F where the flux may be directly measured by receive coils. Equally, transmit coils may generate flux to be focussed into the target region by the material. Magnetic resonance apparatus may be constructed which does not require gradient coils, and r.f. hypothermia may be carried out in a focussed way, minimising damage to surrounding tissue.
摘要翻译：在r.f具有导磁率的材料频率，例如微结构磁性材料具有负值的磁导率，而在特定的r.f上具有单位幅度。频率范围。通量图中的奇点具有如下结果：平行于线C，D的平面C，E中的磁共振扰动聚焦在平面D，F，也垂直于线C，D，反之亦然。这特别适用于磁共振设备，因为该材料可以用于传送r.f. 例如在C，E至D，F中的患者目标区域中的磁通量分布，其中通量可以由接收线圈直接测量。同样地，发射线圈可以产生通过材料聚焦到目标区域中的通量。可以构造不需要梯度线圈的磁共振装置，并且r.f. 低温可以以聚焦方式进行，使对周围组织的损伤最小化。

2. 发明授权

US06603993B1 Endoscope suitable for magnetic resonance imaging 失效
标题翻译：内镜适用于磁共振成像
公开(公告)号：US06603993B1
公开(公告)日：2003-08-05
申请号：US09716162
申请日：2000-11-17
申请人： Glyn A Coutts , David James Larkman , David John Gilderdale , Anthony Charles Grantham
发明人： Glyn A Coutts , David James Larkman , David John Gilderdale , Anthony Charles Grantham
IPC分类号： A61B505
CPC分类号： A61B5/055 , A61B1/0052 , A61B1/0055
摘要： In an endoscope, the tip which contains passages for viewing and light guiding is made of plastics material, for MR compatibility purposes, and an r.f. receive coil of the endoscope is provided with a fiducial having its own r.f. receive coil, to make it possible to track movement of the r.f. receive coil.
摘要翻译：在内窥镜中，包含用于观察和导光的通道的末端由塑料材料制成，用于MR兼容性目的，以及r.f. 内窥镜的接收线圈设置有具有其自身r.f的基准。接收线圈，以便跟踪r.f.的运动。接收线圈。

3. 发明授权

US5879300A Magnetic resonance methods and apparatus 失效
标题翻译：磁共振方法和装置
公开(公告)号：US5879300A
公开(公告)日：1999-03-09
申请号：US674676
申请日：1996-07-02
申请人： David John Gilderdale
发明人： David John Gilderdale
IPC分类号： G01R33/3415 , A61B5/055 , G01R33/34
CPC分类号： G01R33/34084 , G01R33/34069 , G01R33/341
摘要： A method and coil arrangement for use in magnetic resonance imaging facilitates the examination of a localized region of the body. A plurality of substantially identical saddle coils are disposed about a former. The coils, which define a generally cylindrical volume, overlap one another in a circumferential direction. In one embodiment, a generally planar rectangular coil intersects the cylindrical volume. The method and coil arrangement are particularly well suited to imaging a region adjacent but outside the cylindrical volume. The coil arrangement is also well suited to insertion within the body, especially the rectum.
摘要翻译：用于磁共振成像的方法和线圈装置有助于检查身体的局部区域。围绕前者设置多个基本相同的鞍形线圈。限定大致圆柱形体积的线圈在圆周方向上彼此重叠。在一个实施例中，大致平面的矩形线圈与圆柱体相交。该方法和线圈布置特别适合于对圆柱体的相邻但在圆柱体外的区域进行成像。线圈布置也非常适合插入体内，特别是直肠。

4. 发明授权

US06226545B1 RF coil structure for intra-cavity use in magnetic resonance imaging 失效
标题翻译：射频线圈结构用于腔内使用的磁共振成像
公开(公告)号：US06226545B1
公开(公告)日：2001-05-01
申请号：US09167781
申请日：1998-10-07
申请人： David John Gilderdale
发明人： David John Gilderdale
IPC分类号： A61B505
CPC分类号： G01R33/34084 , G01R33/341 , Y10S439/909
摘要： An RF coil structure for intra-cavity use includes a pair of conductors (7, 8) separated by a support such as a web (9) which come together at positions separated along the length of the coil structure such as (A, B). Previous coils have included two parallel conductors. If the conductors (7) and (8) were parallel, while the structure could be flexed transverse to the plane of the web (9) about the arrow (10), it could not be flexed in the plane of the web (9) about arrows (12, 13). Because the conductors come together at points (A) and (B), it can be so flexed. A second coil may be provided including conductors (4, 5) and flexing about the same points as for the first coil is still possible because the points of closest approach for one pair come between those for the other pair.
摘要翻译：用于腔内使用的RF线圈结构包括由诸如（A，B）线圈结构的长度分离的位置在一起的诸如腹板（9）的支撑件分开的一对导体（7,8）。以前的线圈包括两个平行导线。如果导体（7）和（8）是平行的，同时该结构可以绕着卷筒纸（9）的平面绕箭头（10）弯曲，则其不能在网（9）的平面中弯曲，关于箭头（12,13）。因为导体在点（A）和（B）处汇合在一起，所以可以弯曲。可以提供包括导体（4,5）的第二线圈，并且与第一线圈相同的点弯曲仍然是可能的，因为一对的最接近的点在另一对之间的点之间。

5. 发明授权

US5876338A Nuclear magnetic resonance imaging apparatus 失效
标题翻译：核磁共振成像装置
公开(公告)号：US5876338A
公开(公告)日：1999-03-02
申请号：US991499
申请日：1997-12-16
申请人： David John Gilderdale , Anthony Charles Grantham
发明人： David John Gilderdale , Anthony Charles Grantham
IPC分类号： A61B5/055 , G01R33/28 , A61B1/00
CPC分类号： A61B5/055 , G01R33/285
摘要： An MR compatible endoscope 1 has associated MR saddle coil 10 mounted on a removeable former 9. The tip 2 of the endoscope has the usual service channels for imaging. The coil 10 provides an additional MR signal. To avoid the need to plug the coil 10 in, it is inductively couples to a pick-up coil 13 and, to enable this to be removable as will from the endoscope, this may be located in one of the service channels 7 of the endoscope. The removable nature of the coil permits easy repair and, more importantly, a range of coils to be fitted to the endoscope to accommodate different magnetic field strengths.
摘要翻译： MR兼容的内窥镜1具有安装在可移除的成像器9上的相关的MR鞍形线圈10.内窥镜的尖端2具有用于成像的通常的服务通道。线圈10提供附加的MR信号。为了避免需要将线圈10插入，它感应地耦合到拾取线圈13，并且为了使其能够像内窥镜一样被移除，这可以位于内窥镜的服务通道7之一中。线圈的可拆卸性质允许容易地修复，更重要的是，一系列适于内窥镜的线圈以适应不同的磁场强度。

6. 发明授权

US06453189B1 Probe for magnetic resonance imaging 失效
标题翻译：磁共振成像探头
公开(公告)号：US06453189B1
公开(公告)日：2002-09-17
申请号：US09713554
申请日：2000-11-15
申请人： David John Gilderdale
发明人： David John Gilderdale
IPC分类号： A61B5055
CPC分类号： G01R33/34084 , G01R33/285
摘要： A magnetic resonance imaging probe includes a dipole including a first arm and a second arm. The second arm includes an elongate loop coil. In one embodiment, the loop coil is an open coil. In another embodiment, the coil is a twisted coil. The first and second arms are electrically connected to provide a dipole output. The second arm is electrically connected to a loop output.
摘要翻译：磁共振成像探头包括包括第一臂和第二臂的偶极子。第二臂包括细长的环形线圈。在一个实施例中，环形线圈是开放线圈。在另一个实施例中，线圈是扭绞线圈。第一和第二臂电连接以提供偶极输出。第二臂电连接到环路输出端。

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