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229 条记录 (耗时 0.053 秒)

    Open view quadrature birdcage coil
    31.
    发明授权
    Open view quadrature birdcage coil 失效
    打开视图正交鸟笼线圈

    公开(公告)号：US06316941B1

    公开(公告)日：2001-11-13

    申请号：US09513062

    申请日：2000-02-24

    申请人： Hiroyuki Fujita ,  Gordon D. DeMeester ,  William O. Braum

    发明人： Hiroyuki Fujita ,  Gordon D. DeMeester ,  William O. Braum

    IPC分类号： G01V300

    CPC分类号： G01R33/34046

    摘要： A tunable radio frequency birdcage coil (30) is oriented vertically in a bore-type magnetic resonance apparatus. The birdcage coil (30) includes a pair of end rings (60, 62) disposed in parallel planes along a coil axis which is orthogonal to the main magnetic field. A plurality of rungs (64) electrically interconnect the end rings (60, 62) to form a generally cylindrical volume. The end rings (60, 62) and rungs (64) are mounted on a hinged (68) dielectric former (66). Conductive connectors (70) releasably fasten the end rings (60, 62) so that the coil (30) may be opened and closed to receive a portion of a subject to be examined. A conductive loop (80) is inductively coupled and positioned parallel to the end rings (60, 62). The conductive loop (80) is slidably adjustable along the coil axis for matching and tuning end-ring modes of the coil. The coil is oriented to provide a subject disposed therein with an open view for fMRI applications. Means for stimulating the visual senses (100) is mounted adjacent the examination region (14) to facilitate fMRI applications.

    摘要翻译： 可调谐射频鸟笼线圈（30）在孔型磁共振装置中垂直取向。 鸟笼线圈（30）包括沿着与主磁场正交的线圈轴设置在平行平面中的一对端环（60,62）。 多个梯级（64）电连接端环（60,62）以形成大致圆柱形的体积。 端环（60,62）和梯级（64）安装在铰接（68）电介质成形器（66）上。 导电连接器（70）可释放地紧固端环（60,62），使得线圈（30）可以被打开和关闭以接收待检查对象的一部分。 导电回路（80）感应耦合并平行于端环（60,62）定位。 导电回路（80）可沿着线圈轴线可滑动地调节，以匹配和调谐线圈的端环模式。 线圈被定向成提供设置在其中的对象用于fMRI应用的开放视图。 用于刺激视觉感觉的装置（100）安装在检查区域（14）附近，以便于fMRI应用。

    Extract of Touchi containing an &agr;-glucosidase inhibitor
    32.
    发明授权
    Extract of Touchi containing an &agr;-glucosidase inhibitor 有权
    含有α-葡萄糖苷酶抑制剂的Touchi提取物

    公开(公告)号：US06299911B1

    公开(公告)日：2001-10-09

    申请号：US09530063

    申请日：2000-04-24

    申请人： Jun Kawabata ,  Takanori Kasai ,  Hiroyuki Fujita ,  Nobuhiro Fukushima

    发明人： Jun Kawabata ,  Takanori Kasai ,  Hiroyuki Fujita ,  Nobuhiro Fukushima

    IPC分类号： A61K3578

    CPC分类号： A61K38/005 ,  A23L33/105 ,  A61K36/48

    摘要： An &agr;-glucosidase inhibitor is described. It is comprised of an extract of Touchi selected from the group consisting of an extract of Touchi extracted with alcohol, an extract of Touchi extracted with a mixture of water and alcohol in a water to alcohol ratio of 1:5 to 5:1, and an extract of Touchi extracted with water at 100° C. to 140° C. The components in the extract which have a molecular weight of at least 3000 as determined by means of gel filtration or membrane filtration are at most 20% by weight and wherein the extract inhibits &agr;-glucosidase at least 90.4%.

    摘要翻译： 描述了α-葡糖苷酶抑制剂。 它由选自由醇提取的Touchi提取物的Touchi提取物，以水与醇的混合物提取的Touchi提取物以水与醇比为1:5至5:1组成，以及 在100℃至140℃下用水萃取的Touchi提取物。通过凝胶过滤或膜过滤测定的具有至少3000分子量的提取物中的组分最多为20重量％，其中 提取物抑制α-葡萄糖苷酶至少90.4％。

    Battery protective circuit
    35.
    发明授权
    Battery protective circuit 失效
    电池保护电路

    公开(公告)号：US5945810A

    公开(公告)日：1999-08-31

    申请号：US68542

    申请日：1998-05-13

    申请人： Hiroyuki Fujita ,  Koichi Inoue

    发明人： Hiroyuki Fujita ,  Koichi Inoue

    IPC分类号： H02H7/18 ,  H02J7/00 ,  H01M10/46

    CPC分类号： H02J7/0031 ,  H02J7/0029 ,  H02J7/008

    摘要： A battery protection circuit has an overcharge detection circuit that detects overcharge of a battery and a charge inhibition circuit that, when overcharge is detected, inhibits charging with a delay produced by a capacitance element. This charge inhibition circuit can detect a short circuit in the capacitance element that is used to produce a predetermined delay, and, when it detects a short circuit in the capacitance element, it inhibits charging without delay. Thus, since charging is inhibited even when the capacitance element is short-circuited, a power supply unit incorporating this battery protection circuit is safer to use.

    摘要翻译： PCT No.PCT / JP97 / 03375 Sec。 371日期1998年5月13日 102（e）日期1998年5月13日PCT 1997年9月22日PCT公布。 第WO98 / 13923号公报 日期：1998年4月2日电池保护电路具有过充电检测电路，其检测电池的过充电和充电抑制电路，当检测到过充电时，由电容元件产生的延迟抑制充电。 该充电禁止电路可以检测用于产生预定延迟的电容元件中的短路，并且当其检测到电容元件中的短路时，其无延迟地禁止充电。 因此，即使当电容元件短路时也禁止充电，因此使用该电池保护电路的电源单元更安全。

    Organ viability
    38.
    发明授权
    Organ viability 有权
    器官活力

    公开(公告)号：US08717027B2

    公开(公告)日：2014-05-06

    申请号：US12978882

    申请日：2010-12-27

    申请人： Hiroyuki Fujita ,  John L. Patrick ,  Ronald B. Richard

    发明人： Hiroyuki Fujita ,  John L. Patrick ,  Ronald B. Richard

    IPC分类号： G01R33/44 ,  G01R33/48 ,  G01R33/30 ,  G01R33/465 ,  G01R33/36

    CPC分类号： G01R33/30 ,  G01R33/3635 ,  G01R33/465

    摘要： Apparatuses, methods, and other embodiments associated with determining organ viability are described. According to one embodiment, an apparatus includes logic configured to apply nuclear magnetic resonance (NMR) energy to a kidney positioned in a hypothermic pulsative perfusion (HPP) apparatus. The NMR energy is produced according to an MRS 31P specific pulse sequence. The HPP apparatus has an integrated RF coil. The HPP may also have an integrated magnet. The RF coil is positioned and oriented to facilitate optimizing 31P MRS of the kidney. The apparatus also includes logic configured to receive spectrum data from the kidney. The spectrum data is produced in response to applying the NMR energy to the kidney. The apparatus also includes logic configured to provide objective, quantitative kidney viability data (e.g., PME/Pi, ATP/ADP) from the spectrum data. More generally, MRI/MRS compatible HPP apparatuses are configured to interact with dedicated NMR spectroscopy apparatuses.

    摘要翻译： 描述了与确定器官活力相关联的装置，方法和其它实施例。 根据一个实施例，一种装置包括被配置为向位于低温脉动灌注（HPP）装置中的肾脏施加核磁共振（NMR）能量的逻辑。 NMR能量根据MRS 31P特定脉冲序列产生。 HPP设备具有集成的RF线圈。 HPP还可以具有集成磁体。 RF线圈定位和定向以便于优化肾脏31P MRS。 该装置还包括被配置为从肾脏接收频谱数据的逻辑。 响应于将NMR能量应用于肾而产生光谱数据。 该装置还包括被配置为从频谱数据提供客观的，定量的肾活力数据（例如，PME / Pi，ATP / ADP）的逻辑。 更一般地，MRI / MRS兼容的HPP装置被配置为与专用NMR光谱装置相互作用。

    PEDIATRIC COIL ASSEMBLY
    40.
    发明申请
    PEDIATRIC COIL ASSEMBLY 有权
    小型线圈总成

    公开(公告)号：US20120126814A1

    公开(公告)日：2012-05-24

    申请号：US12950746

    申请日：2010-11-19

    申请人： Hubertus Fischer ,  Hiroyuki Fujita ,  Joseph Herczak ,  Lars Lauer

    发明人： Hubertus Fischer ,  Hiroyuki Fujita ,  Joseph Herczak ,  Lars Lauer

    IPC分类号： G01R33/44

    CPC分类号： G01R33/34084 ,  G01R33/30 ,  G01R33/34007 ,  G01R33/34046 ,  G01R33/3415

    摘要： In order to increase the signal to noise ratio, and thus increase the quality of images produced during pediatric MRI, a pediatric RF coil assembly includes a head coil and a flexible body coil in a single dedicated device shaped and sized for a child. The flexible body coil may be operable to at least partially surround and abut the body of the child located on the pediatric RF coil assembly, while the head coil may at least partially surround and abut the head of the child located on the pediatric RF coil assembly. In order to optimize workflow, the child may be positioned on the pediatric RF coil assembly in a first room and moved to a second room including an MRI system after the child is brought to sleep or sedated in the first room. The pediatric RF coil assembly and the child may be moved to the second room using a handle rotatably attached to the pediatric RF coil assembly, and may be positioned on a patient table of the MRI system when the imaging process is to begin.

    摘要翻译： 为了增加信噪比，从而增加儿科MRI期间产生的图像的质量，儿科RF线圈组件包括头部线圈和柔性体线圈，其形状和尺寸适合于儿童。 柔性体线圈可以可操作以至少部分地围绕和邻接位于儿科RF线圈组件上的儿童的身体，而头部线圈可以至少部分地围绕和邻接位于儿科RF线圈组件上的儿童的头部 。 为了优化工作流程，孩子可以定位在第一房间中的小儿RF线圈组件上，并且在儿童在第一房间中睡眠或镇静之后移动到包括MRI系统的第二房间。 可以使用可旋转地附接到儿科RF线圈组件的手柄将小儿RF线圈组件和儿童移动到第二房间，并且当成像过程开始时，可​​将其放置在MRI系统的患者台上。