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1. 发明授权

US06208885B1 Injector for injection of pre-polarised fluid into a patient for magnetic resonance (MR) measurement 失效
标题翻译：用于将预偏振流体注射到患者中用于磁共振（MR）测量的注射器
公开(公告)号：US06208885B1
公开(公告)日：2001-03-27
申请号：US09224790
申请日：1999-01-04
申请人： Ian Robert Young , Joseph Vilmos Hajnal , Alasdair Stewart Hall
发明人： Ian Robert Young , Joseph Vilmos Hajnal , Alasdair Stewart Hall
IPC分类号： A61B505
CPC分类号： A61B5/055 , G01R33/28 , G01R33/281 , G01R33/563
摘要： A patient bed (1) of an MR imaging apparatus is provided with a tube (17) through which pre-polarised fluid can be injected into a patient in order to improve contrast when imaging veins, arteries or other vessels in the body. Fluid is delivered from pump (2) into a high field polarising magnet (3) and along a tube (4) to the patient. Valve (5) is provided so that fluid in the tube (4) downstream of the pre-polarised fluid can be discarded rather than being injected in the patient, and is associated with a reservoir into which the fluid to be discarded and the pre-polarised fluid can be rapidly injected. Then, when the pre-polarised fluid is injected into the patient, its magnetisation has not deteriorated by as much as it would have done if the tube (4) had been directly connected into the patient.
摘要翻译： MR成像设备的病床（1）设置有管（17），当对体内静脉，动脉或其他血管进行成像时，可以将预偏振流体注射到患者体内以改善对比度。流体从泵（2）输送到高场偏振磁体（3）中并且沿着管（4）递送到患者。提供阀（5），使得预偏振流体下游的管（4）中的流体可以被丢弃而不是被注入到患者体内，并且与要被丢弃的流体和预处理流体的储存器相关联，极化流体可以快速注入。然后，当将预偏振流体注射到患者体内时，如果将管（4）直接连接到患者体内，则其磁化作用不会降低。

2. 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。

3. 发明申请

US20100198051A1 ACTUATORS 审中-公开
标题翻译：执行机构
公开(公告)号：US20100198051A1
公开(公告)日：2010-08-05
申请号：US12515207
申请日：2007-11-15
申请人： Michael Ulrich Lamperth , Ian Robert Young , Haytham Elhawary , Tsz Ho Tse
发明人： Michael Ulrich Lamperth , Ian Robert Young , Haytham Elhawary , Tsz Ho Tse
IPC分类号： A61B19/00 , F01D15/06 , A61B5/05 , G06F19/00 , B25J18/00
CPC分类号： F01D15/062 , A61B34/30 , A61B34/70 , A61B2017/00553 , A61B2090/374 , Y10T74/20305
摘要： An actuator comprises an input shaft (42), a turbine system (38) coupled to the input shaft, air inlet means (32, 34) arranged to direct air flowing through it towards the turbine system to rotate the input shaft, an output shaft (50), and a gearing system (48) connecting the input shaft (42) to the output shaft (50) so that the turbine system (38) can drive the output shaft (50) via the gearing system (48). The air inlet means defines two different flow paths for air whereby the output shaft (50) can be driven in both directions.
摘要翻译：致动器包括输入轴（42），联接到输入轴的涡轮机系统（38），空气入口装置（32,34），其布置成将流过其的空气引向涡轮机系统以旋转输入轴;输出轴（50）和将输入轴（42）连接到输出轴（50）的齿轮系统（48），使得涡轮机系统（38）能够经由齿轮传动系统（48）驱动输出轴（50）。空气入口装置限定用于空气的两个不同的流动路径，由此输出轴（50）可以在两个方向上被驱动。

4. 发明授权

US06171240B2 MRI RF catheter coil 失效
标题翻译： MRI RF导管线圈
公开(公告)号：US06171240B2
公开(公告)日：2001-01-09
申请号：US08985842
申请日：1997-12-05
申请人： Ian Robert Young , Michael Burl , Jukka I Tanttu
发明人： Ian Robert Young , Michael Burl , Jukka I Tanttu
IPC分类号： A61B5055
CPC分类号： G01R33/34084 , G01R33/287 , G01R33/341
摘要： A radio frequency coil (12, 19) adapted for use in interventional magnetic resonance imaging consists of a loop of an elongated electric conductor arranged to form a twisted wire pair (12, 19) and means associated with it for operating the coil both in transmit and receive mode, in order that the coil does not image anything but tracks its own path on an MR image, without affecting the magnetization in the main bulk of the body being imaged.
摘要翻译：适用于介入磁共振成像的射频线圈（12,19）由布置成形成双绞线对（12,19）的细长电导体的环和与之相关联的装置用于在传输中操作线圈和接收模式，以便线圈不会对MR图像上的自身路径进行任何图像，而不影响被成像的身体的主体部分的磁化。

5. 发明授权

US06819106B2 Magnetic resonance imaging apparatus with means to screen rf fields 失效
标题翻译：磁共振成像装置，具有屏幕rf场的手段
公开(公告)号：US06819106B2
公开(公告)日：2004-11-16
申请号：US10220732
申请日：2003-01-13
申请人： Ian Robert Young , Michael Charles Keogh
发明人： Ian Robert Young , Michael Charles Keogh
IPC分类号： G01V300
CPC分类号： G01R33/422 , G01R33/3415
摘要： In magnetic resonance imaging apparatus, an array of coils (7, 8, 9, 10) is used to receive magnetic resonance signals from a desired region of a patient. Screens 11 to 13 and 14 and 15 are provided between the coils and at the ends of the array of coils to control the sensitive region A of each coil but, in accordance with the invention, the screening properties of the screens is controllable so that for example the screens may be made inoperative beneath the plane of the array of coils so that each has the field of view B, in order to vary the properties produced by the array. Other uses of screens are described.
摘要翻译：在磁共振成像设备中，使用线圈阵列（7,8,9,10）来从患者的期望区域接收磁共振信号。屏幕11至13和14和15设置在线圈之间和线圈阵列的端部，以控制每个线圈的敏感区域A，但是根据本发明，屏幕的屏蔽性能是可控制的，例如，可以使屏幕在线圈阵列的平面之下不起作用，使得每个具有视场B，以便改变由阵列产生的特性。描述屏幕的其他用途。

6. 发明授权

US06294916B1 NMR and ESR probes for closed loop control of gradient fields 失效
标题翻译： NMR和ESR探针，用于梯度场的闭环控制
公开(公告)号：US06294916B1
公开(公告)日：2001-09-25
申请号：US09431539
申请日：1999-10-29
申请人： Michael Burl , Ian Robert Young
发明人： Michael Burl , Ian Robert Young
IPC分类号： G01L300
CPC分类号： G01R33/385 , G01R33/24
摘要： Magnetic resonance imaging apparatus uses magnetic field gradients X, Y, Z to spatially encode the magnetic signals arising from a patient on a couch 2 in bore 1 of a main magnet. Thermal stresses arising from aggressive gradients during multiple acquisitions result in imperfectly repeated gradients and resulting image artefacts. The invention uses a probe 4 provided with a gradient coil set similar to that for imaging, and fed by currents derived from the imaging gradient coils, connected so as to produce an opposing gradient surrounding an MR active substance in the probe. This enables a probe with a sufficiently large amount of MR active substance to produce a useful signal to be used to monitor the gradient, while overcoming the de-phasing problem. which would otherwise occur. Closed loop control of gradients thereby becomes possible.
摘要翻译：磁共振成像装置使用磁场梯度X，Y，Z来对主磁体的孔1中的床上的患者2产生的磁信号进行空间编码。在多次采集过程中由侵蚀性梯度引起的热应力导致不完全重复的梯度和产生的图像伪影。本发明使用具有类似于成像的梯度线圈组的探针4，并且由来自成像梯度线圈的电流馈送，以便产生围绕探针中的MR活性物质的相反的梯度。这使得具有足够大量的MR活性物质的探针产生用于监测梯度的有用信号，同时克服了解相问题。否则会发生。梯度的闭环控制成为可能。

7. 发明授权

US5675256A Magnetic resonance methods and apparatus 失效
标题翻译：磁共振方法和装置
公开(公告)号：US5675256A
公开(公告)日：1997-10-07
申请号：US674504
申请日：1996-07-02
申请人： Ian Robert Young
发明人： Ian Robert Young
IPC分类号： G01R33/385 , A61B5/055 , G01R33/383 , G01R33/565 , G01V3/00
CPC分类号： G01R33/383 , G01R33/56518
摘要： A magnetic resonance imaging system includes a magnet system which includes pole pieces and an energizing coil. The end portions of the pole pieces are made from a material which, does not support eddy currents, such as insulated iron powder. An object to be imaged is placed in the gap between the pole pieces. A gradient coil system imposes desired gradient fields in the gap between the pole pieces. The gradient magnetic field sequences are controlled such that, for each gradient pulse or a particular polarity there is applied a compensating pulse of the same magnitude, but the opposite polarity. Each compensating gradient has an integral which is relatively small. Remanent magnetism in the end portions of the pole pieces is thereby substantially avoided.
摘要翻译：磁共振成像系统包括磁体系统，其包括极片和激励线圈。极片的端部由不支持涡流的材料制成，例如绝缘铁粉。要成像的物体放置在极片之间的间隙中。梯度线圈系统在极片之间的间隙中施加期望的梯度场。控制梯度磁场序列，使得对于每个梯度脉冲或特定极性，施加相同大小但相反极性的补偿脉冲。每个补偿梯度具有相对小的积分。从而基本上避免了极片端部的残余磁性。

8. 发明授权

US06441711B2 Magnetizing magnet 失效
标题翻译：磁化磁铁
公开(公告)号：US06441711B2
公开(公告)日：2002-08-27
申请号：US09813617
申请日：2001-03-21
申请人： Ian Robert Young
发明人： Ian Robert Young
IPC分类号： H01F500
CPC分类号： H01F6/00 , F17C3/085 , F17C13/087 , F17C2203/0687 , F17C2221/017 , F17C2270/0509 , G01R33/3815 , Y10S505/892 , Y10S505/897 , Y10S505/898
摘要： A high temperature superconductor (HTSC) 5 is magnetized between drive coils 1,2 forming poles of a magnet connected by an iron yoke 9 by relative movement of a vacuum insulated cryostat 4 containing the HTSC and the magnetizing magnet, in order to magnetize a large area of HTSC using a magnet with a small region 3 of magnetizing flux. Alternatively, the HTSC 5may be contained in an evacuated region of a cryostat containing the magnetizing magnet. An interconnecting chamber allows the HTSC to be moved between an operative region and a magnetizing region without substantial loss of vacuum.
摘要翻译：高温超导体（HTSC）5在驱动线圈1,2之间被磁化，该驱动线圈1,2通过包含HTSC和磁化磁体的真空绝缘低温恒温器4相对运动而形成由铁轭9连接的磁体的磁极，以便磁化大的使用具有小区域3的磁化通量的磁体的HTSC区域。或者，HTSC 5可以包含在包含磁化磁体的低温恒温器的抽空区域中。互连室允许HTSC在操作区域和磁化区域之间移动，而不会显着损失真空度。

9. 发明授权

US06424154B1 Magnetic resonance imaging apparatus 失效
标题翻译：磁共振成像装置
公开(公告)号：US06424154B1
公开(公告)日：2002-07-23
申请号：US09685539
申请日：2000-10-10
申请人： Ian Robert Young
发明人： Ian Robert Young
IPC分类号： G01V300
CPC分类号： G01R33/3635 , G01R33/5659
摘要： The image produced by a magnetic resonance imaging apparatus using a receive coil 2 has inaccuracies due to external circumstances which affect the signal produced by the coil 2. Thus, noise spikes affect the signal, although more usually extensive shielding is provided. Also, changes of loading of the coil produced by movement of the patient vary the Q of the coil and hence the signal output. In accordance with a first aspect of the invention, a second coil 4 superimposed on the coil 2 is tuned to a frequency offset compared to the MR center frequency and is used to monitor coil loading to enable the signal from coil 2 to be corrected, and in accordance with a second aspect of the invention an additional coil 4 or 8, preferably both, is/are provided in order to detect broadband noise and enable its suppression on the output of the coil 2.
摘要翻译：由使用接收线圈2的磁共振成像设备产生的图像由于影响线圈2产生的信号的外部环境而具有不准确性。因此，噪声尖峰影响信号，尽管更通常提供广泛的屏蔽。此外，由患者移动产生的线圈的负荷变化也会改变线圈的Q值，从而改变信号输出。根据本发明的第一方面，叠加在线圈2上的第二线圈4被调谐到与MR中心频率相比的频率偏移，并且用于监视线圈负载以使来自线圈2的信号得到校正，以及根据本发明的第二方面，提供附加的线圈4或8，优选地两者，以便检测宽带噪声并使其能够抑制线圈2的输出。

10. 发明授权

US06366092B1 Magnetic resonance imaging 失效
标题翻译：磁共振成像
公开(公告)号：US06366092B1
公开(公告)日：2002-04-02
申请号：US09471525
申请日：1999-12-23
申请人： Gosta J Ehnholm , Ian Robert Young
发明人： Gosta J Ehnholm , Ian Robert Young
IPC分类号： G01V300
CPC分类号： G01R33/4835 , G01R33/3415 , G01R33/5611
摘要： In magnetic resonance imaging apparatus having a resistive electromagnet with a bore 6, r.f. excitation pulse substantially simultaneously excites a number of slices A to D which are phase encoded and frequency encoded in the usual way, the direction of the main field being along the bore of the electromagnet in the direction z. The receive coil consists of an array of coils 5a to 5d which view different spatial regions of the imaging volume and the outputs of which are combined in different ways in order to reduce the number of slice encoding steps in the z-direction needed to distinguish between the slices A to D. Each coil of the array 5a etc. can form part of a two dimensional array in order to reduce the number of phase encoding steps in the phase encode direction.
摘要翻译：在具有具有孔6的电阻电磁体的磁共振成像装置中，r.f. 激励脉冲基本上同时激励以通常方式进行相位编码和频率编码的多个片段A至D，主场的方向沿电磁体的孔沿方向z。接收线圈由一组线圈5a至5d组成，线圈5a至5d观看成像体积的不同空间区域，其输出以不同方式组合，以便减少Z方向上的切片编码步骤数量，以区分片A至D.阵列5a等的每个线圈可以形成二维阵列的一部分，以便减少相位编码方向上的相位编码步骤的数量。

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