Magnetic resonance device with attachment means for attaching a gradient coil, attachment means
    1.
    发明申请
    Magnetic resonance device with attachment means for attaching a gradient coil, attachment means 有权
    具有用于附接梯度线圈,附接装置的附接装置的磁共振装置

    公开(公告)号:US20060267589A1

    公开(公告)日:2006-11-30

    申请号:US11441317

    申请日:2006-05-25

    IPC分类号: G01V3/00

    CPC分类号: G01R33/28 G01R33/385

    摘要: Magnetic resonance device (1) with an assembly (3) having a recess, in which a gradient coil unit (9) is attached with at least one attachment means (15, . . . 15D), the attachment means (15 ... 15D) having two members (21,23), between which an elastic element (25) is disposed, only one of the members (21,23) in each instance being in contact with either the gradient coil unit (9) or the assembly (3), with the attachment means (15, . . . 15D) acting as an attachment means (15, . . . 15D) having no elastic element (25) in a first attachment state, in which at least a minimum force (FMIN) presses the two members (21, 23) together, in that the two members (21, 23) have stop surfaces (31), which are in contact with each other due to the minimum force acting on the members (21, 23) [lacuna] compressed elastic element (25) and with the attachment means (15, . . . 15D) acting as a spring unit in a second fixing state, in that the elastic element (25) pushes the members (21, 23) apart in the event of forces smaller than the minimum force (FMIN) and causes the attachment means (15, . . . 15D) to be fixed in relation to the gradient coil unit (9) and the assembly (3). This has the advantage that there is no loosening of the attachment means in particular even in the event of thermal fluctuations.

    摘要翻译: 具有凹部的组件(3)的磁共振装置(1),其中梯度线圈单元(9)附接有至少一个附接装置(15 ... 15D),所述附接装置(15 ..) 15D)具有两个构件(21,23),两个构件(21,23)之间布置有弹性元件(25),每个构件(21,23)中的仅一个与梯度线圈单元(9)或 所述组件(3)具有作为在第一附接状态下没有弹性元件(25)的附接装置(15,...,15D)的附接装置(15 ... 15D),其中至少 因为两个构件(21,23)具有彼此接触的止动表面(31),所以两个构件(21,23)一起挤压两个构件(21,23),因为最小力 到达构件(21,23)[压缩弹性元件(25))和作为第二固定状态的弹簧单元的附接装置(15 ... 15D)的最小力,其中 弹性元素 t(25)在力小于最小力(F MIN MIN)的情况下将构件(21,23)分开推动,并使附接装置(15, 。 。 15D)相对于梯度线圈单元(9)和组件(3)固定。 这具有的优点是即使在热波动的情况下也不会特别地使连接装置松动。

    Supporting tube for a magnetic resonance scanner
    2.
    发明申请
    Supporting tube for a magnetic resonance scanner 审中-公开
    用于磁共振扫描仪的支撑管

    公开(公告)号:US20050155151A1

    公开(公告)日:2005-07-21

    申请号:US10955674

    申请日:2004-09-30

    CPC分类号: G01R33/28

    摘要: Supporting tube made from reinforced plastic for magnetic resonance scanners with tracks for a patient bed and load-bearing shells formed on both sides, opening upwardly, with fastening members on the undersides is manufactured including the guide rails and the under embedded fastening members from mold-cast plastic and is locally provided with cast-in reinforcements only in the region bf the load-bearing shells.

    摘要翻译: 由用于磁共振扫描器的钢筋制造的支撑管,其具有用于患者床的轨道和形成在两侧上的承载壳,其向上开口,其中下部的紧固构件被制造成包括导轨和来自模具的嵌入式紧固构件, 并且仅在承载壳体的区域内局部地提供铸造的增强件。

    Device consisting of a combination of a magnetic resonance tomograph and a positron emission tomograph
    4.
    发明申请
    Device consisting of a combination of a magnetic resonance tomograph and a positron emission tomograph 有权
    由磁共振断层扫描仪和正电子发射断层扫描仪的组合组成的装置

    公开(公告)号:US20080303524A1

    公开(公告)日:2008-12-11

    申请号:US12081672

    申请日:2008-04-18

    IPC分类号: G01V3/00

    CPC分类号: G01R33/481

    摘要: At least one embodiment is directed to a combination of an MR tomograph and a positron emission tomograph having avalanche photodiodes as reception elements. In at least one embodiment, the intention is to ensure that the avalanche photodiodes are kept at a constant temperature despite the exposure to heat from the MR components. It is proposed, in at least one embodiment, that cooling by Peltier elements 5 should be provided.

    摘要翻译: 至少一个实施例涉及具有雪崩光电二极管作为接收元件的MR断层摄影机和正电子发射断层摄影机的组合。 在至少一个实施例中,意图是确保雪崩光电二极管保持在恒定温度,尽管暴露于来自MR部件的热量。 在至少一个实施例中,提出应该提供由珀耳帖元件5的冷却。

    Electrical device with flame retardant coating and manufacturing method therefor
    5.
    发明申请
    Electrical device with flame retardant coating and manufacturing method therefor 审中-公开
    具有阻燃涂层的电气装置及其制造方法

    公开(公告)号:US20070160845A1

    公开(公告)日:2007-07-12

    申请号:US11329271

    申请日:2006-01-09

    IPC分类号: B32B17/10 B05D5/12 B05D7/00

    CPC分类号: C09D5/18 Y10T428/31

    摘要: An electrical device is produced using components that are designed and fabricated of material that is substantially free of flame retardant additives. At least some of the components are coated with a flame retardant coating to give those components fire protection capability that satisfies applicable regulations. The frame retardant coating can be applied to the components either before assembly thereof to form the electrical device, or can be applied to the assembled apparatus.

    摘要翻译: 使用由基本上不含阻燃添加剂的材料设计和制造的部件制造电气装置。 至少一些部件涂有阻燃涂层,以使这些部件具有满足适用规定的防火能力。 框架阻燃涂层可以在组装之前施加到组件上以形成电气装置,或者可以应用于组装的装置。

    Method, dielectric element, and MR system for generating an MR exposure
    6.
    发明申请
    Method, dielectric element, and MR system for generating an MR exposure 有权
    方法,电介质元件和用于产生MR暴露的MR系统

    公开(公告)号:US20050194974A1

    公开(公告)日:2005-09-08

    申请号:US11055313

    申请日:2005-02-10

    IPC分类号: G01R33/36 G01R33/56 G01V3/00

    CPC分类号: G01R33/5659

    摘要: For generating of magnetic resonance exposures of an examination subject, a dielectric element with high dielectric constant is positioned on the examination subject to locally influence the B1 field distribution, the dielectric element being formed primarily of material whose magnetic resonance line(s) is/are shifted by at least a specific degree relative to the magnetic resonance line of water protons for a given magnetic field. In a measurement for generation of a magnetic resonance exposure a measurement sequence is used, such in the acquisition of the raw image data the dielectric material of the dielectric element supplies no signal contributions for the image generation and/or the signals caused by the dielectric material of the dielectric element can be separated from the signals caused by the examination subject.

    摘要翻译: 为了产生检查对象的磁共振曝光,具有高介电常数的电介质元件位于检查对象上,局部地影响B 1场分布,电介质元件主要由材料形成,其磁性 谐振线相对于给定磁场的水质子的磁共振线至少具有一定程度的偏移。 在用于产生磁共振曝光的测量中,使用测量序列,例如在获取原始图像数据时,电介质元件的电介质材料不产生用于图像产生的信号贡献和/或由电介质材料引起的信号 的介电元件可以与由检查对象引起的信号分离。

    Local coil unit for a magnetic resonance apparatus
    7.
    发明申请
    Local coil unit for a magnetic resonance apparatus 失效
    用于磁共振设备的局部线圈单元

    公开(公告)号:US20050110493A1

    公开(公告)日:2005-05-26

    申请号:US10953303

    申请日:2004-09-29

    IPC分类号: G01R33/341 G01V3/00

    CPC分类号: G01R33/341

    摘要: A local coil unit for a magnetic resonance apparatus, which radiates a radio-frequency field into an examination subject, has a housing and at least a part of the housing is formed of an insulating dielectric material that passively compensates for an inhomogeneity in the high-frequency field in the subject. The material has a relative dielectric value εr of greater than 50, preferably greater than 100, and a dielectric loss factor tan δ of less than 2.5×10−2, preferably less than 1×10−3. In the dielectric material displacement currents are generated which create an additional magnetic field that compensates for the minima in the B1 field as a result of the eddy currents arising in the patient due to the radio-frequency radiation.

    摘要翻译: 用于将射频场辐射到检查对象中的磁共振设备的局部线圈单元具有壳体,并且壳体的至少一部分由绝缘电介质材料形成,被动地补偿高频场中的不均匀性, 频率场。 该材料具有大于50,优选大于100的相对电介质值εL r以及低于2.5×10 -2的介电损耗因子tanδ,优​​选地较小 超过1×10 -3 -3。 在电介质材料中,产生位移电流,其产生额外的磁场,其由于射频辐射而在患者体内产生的涡流的结果来补偿B1场中的最小值。

    Device for superposed MRI and PET imaging
    9.
    发明申请
    Device for superposed MRI and PET imaging 审中-公开
    用于叠加MRI和PET成像的装置

    公开(公告)号:US20080208035A1

    公开(公告)日:2008-08-28

    申请号:US12071104

    申请日:2008-02-15

    IPC分类号: A61B5/055

    摘要: A device is disclosed for superposed magnetic resonance imaging and positron emission tomography imaging. The device includes a magnetic resonance imaging magnet which defines a longitudinal axis; a magnetic resonance imaging gradient coil arranged radially within the magnetic resonance imaging magnet; a magnetic resonance imaging RF coil arranged radially within the magnetic resonance imaging gradient coil; and a multiplicity of positron emission tomography detection units arranged in pairs opposite one another about the longitudinal axis. In at least one embodiment, the many positron emission tomography detection units are arranged radially within the magnetic resonance imaging gradient coil and can be inserted into the device and can be removed from the device along the longitudinal axis. In at least one embodiment, a carrier tube is provided having a multiplicity of pockets, which in each case extend along the longitudinal axis, for accommodating at least one positron emission tomography detection unit.

    摘要翻译: 公开了用于重叠磁共振成像和正电子发射断层摄影成像的装置。 该装置包括限定纵轴的磁共振成像磁体; 放射状配置在磁共振成像磁体内的磁共振成像梯度线圈; 放射状配置在磁共振成像梯度线圈内的磁共振成像RF线圈; 以及多个正电子发射断层摄影检测单元,其围绕纵向轴线彼此成对地布置。 在至少一个实施例中,许多正电子发射断层摄影检测单元径向布置在磁共振成像梯度线圈内并且可以插入到装置中并且可以沿着纵向轴线从装置移除。 在至少一个实施例中,提供了具有多个凹穴的载体管,每个凹穴在每种情况下沿着纵向轴线延伸,用于容纳至少一个正电子发射断层摄影检测单元。

    DIELECTRIC ELEMENT, AND MAGNETIC RESONANCE IMAGING METHOD USING SAME
    10.
    发明申请
    DIELECTRIC ELEMENT, AND MAGNETIC RESONANCE IMAGING METHOD USING SAME 有权
    电介质元件和使用相同的磁共振成像方法

    公开(公告)号:US20070279054A1

    公开(公告)日:2007-12-06

    申请号:US11756780

    申请日:2007-06-01

    IPC分类号: G01V3/00

    CPC分类号: G01R33/28 G01R33/5659

    摘要: A dielectric element for positioning on an examination subject for locally influencing the B1 field distribution during magnetic resonance data acquisition contains a relaxation agent bound to mutually separated particles. The relaxation agent incorporates a paramagnetic substance. In a corresponding method for acquiring magnetic resonance data from an examination subject, such a dielectric element is positioned on the examination subject for locally influencing the B1 field distribution, by homogenizing the B1 field of a magnetic resonance apparatus.

    摘要翻译: 用于定位在检查对象上用于在磁共振数据采集期间局部影响B1场分布的电介质元件包含与相互分离的颗粒结合的松弛剂。 松弛剂包含顺磁性物质。 在用于从检查对象获取磁共振数据的相应方法中,这样的电介质元件位于检查对象上,用于局部影响B 1场分布,通过使B< 1& 磁共振装置。