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47 条记录 (耗时 0.019 秒)

    Adapter for a direct-connection head coil with adjustable tilt angle
    22.
    发明授权
    Adapter for a direct-connection head coil with adjustable tilt angle 有权
    适用于可调倾斜角的直接连接头线圈

    公开(公告)号：US09250302B2

    公开(公告)日：2016-02-02

    申请号：US13554878

    申请日：2012-07-20

    申请人： Daniel Driemel ,  Hubertus Fischer

    发明人： Daniel Driemel ,  Hubertus Fischer

    IPC分类号： G01R33/28 ,  G01R33/34 ,  A61B5/055 ,  A61B6/04

    CPC分类号： G01R33/28 ,  A61B5/0555 ,  A61B6/0407 ,  G01R33/34046

    摘要： An adapter for a local coil for a magnetic resonance tomography device is provided. The adapter is placeable on a patient support for the magnetic resonance tomography device. The adapter includes an adapter upper part that is removably connectable to the local coil. The adapter also includes an adapter lower part that is removably connectable to the patient support. The adapter also includes a tilt device, by which the adapter upper part is movable relative to the adapter lower part.

    摘要翻译： 提供了一种用于磁共振断层摄影装置的局部线圈的适配器。 适配器可放置在用于磁共振断层摄影装置的患者支架上。 适配器包括可拆卸地连接到本地线圈的适配器上部。 适配器还包括适配器下部，其可拆卸地连接到患者支架。 适配器还包括倾斜装置，通过该倾斜装置，适配器上部可相对于适配器下部部分移动。

    Method and apparatus for gradient power supply for a nuclear magnetic resonance tomography apparatus
    25.
    发明授权
    Method and apparatus for gradient power supply for a nuclear magnetic resonance tomography apparatus 失效
    用于核磁共振断层摄影装置的梯度电源的方法和装置

    公开(公告)号：US5617030A

    公开(公告)日：1997-04-01

    申请号：US621622

    申请日：1996-03-26

    申请人： Hubertus Fischer ,  Stefan Nowak ,  Franz Schmitt

    发明人： Hubertus Fischer ,  Stefan Nowak ,  Franz Schmitt

    IPC分类号： A61B5/055 ,  G01R33/385 ,  G01V3/00

    CPC分类号： G01R33/3852

    摘要： A gradient coil is connected to a controllable gradient amplifier via a first diagonal of a bridge circuit having four switches and unbiased diodes respectively connected parallel thereto. A capacitor that forms a resonant circuit together with the gradient coil is connected into the second bridge diagonal of the bridge circuit. A sinusoidal current is supplied through the gradient coil. Due to intentionally incomplete discharging of the capacitor at every other half-wave, an offset current can be superimposed on the sinusoidal current through the gradient coil.

    摘要翻译： 梯形线圈经由具有四个分别与其并联连接的开关和无偏置二极管的桥接电路的第一对角线连接到可控梯度放大器。 与梯度线圈一起形成谐振电路的电容器被连接到桥式电路的第二桥对角线中。 通过梯形线圈提供正弦电流。 由于电容器在每隔一个半波有意不完全放电，偏移电流可以叠加在通过梯度线圈的正弦电流上。

    Hearing protection device
    27.
    发明授权
    Hearing protection device 有权
    听力保护装置

    公开(公告)号：US09426559B2

    公开(公告)日：2016-08-23

    申请号：US14695875

    申请日：2015-04-24

    申请人： Yvonne Candidus ,  Hubertus Fischer

    发明人： Yvonne Candidus ,  Hubertus Fischer

    IPC分类号： H04R25/00 ,  H04R1/10 ,  A61F11/14 ,  G01R33/28 ,  A61B5/055

    CPC分类号： H04R1/1083 ,  A61B5/055 ,  A61F11/14 ,  A61F2250/0003 ,  G01R33/283 ,  G01R33/288 ,  H04R1/1008

    摘要： A hearing protection device for use in magnetic resonance devices is provided. The hearing protection device has a first hearing protection unit for disposal on a first ear of a patient and a second hearing protection unit for disposal on a second ear of a patient. The first hearing protection unit and/or the second hearing protection unit has a fluid cushion unit.

    摘要翻译： 提供一种用于磁共振装置的听力保护装置。 听力保护装置具有用于在患者的第一耳部处置的第一听力保护单元和用于在患者的第二耳朵上进行处置的第二听力保护单元。 第一听力保护单元和/或第二听力保护单元具有流体缓冲单元。

    Pediatric coil assembly
    28.
    发明授权
    Pediatric coil assembly 有权
    小儿线圈组件

    公开(公告)号：US09116212B2

    公开(公告)日：2015-08-25

    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： G01V3/00 ,  G01R33/34 ,  G01R33/30 ,  G01R33/3415

    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。

    ADAPTER FOR A DIRECT-CONNECTION HEAD COIL WITH ADJUSTABLE TILT ANGLE
    29.
    发明申请
    ADAPTER FOR A DIRECT-CONNECTION HEAD COIL WITH ADJUSTABLE TILT ANGLE 有权
    适用于具有可调倾斜角度的直接连接头线圈

    公开(公告)号：US20130023756A1

    公开(公告)日：2013-01-24

    申请号：US13554878

    申请日：2012-07-20

    申请人： Daniel Driemel ,  Hubertus Fischer

    发明人： Daniel Driemel ,  Hubertus Fischer

    IPC分类号： A61B5/055

    CPC分类号： G01R33/28 ,  A61B5/0555 ,  A61B6/0407 ,  G01R33/34046

    摘要： An adapter for a local coil for a magnetic resonance tomography device is provided. The adapter is placeable on a patient support for the magnetic resonance tomography device. The adapter includes an adapter upper part that is removably connectable to the local coil. The adapter also includes an adapter lower part that is removably connectable to the patient support. The adapter also includes a tilt device, by which the adapter upper part is movable relative to the adapter lower part.

    摘要翻译： 提供了一种用于磁共振断层摄影装置的局部线圈的适配器。 适配器可放置在用于磁共振断层摄影装置的患者支架上。 适配器包括可拆卸地连接到本地线圈的适配器上部。 适配器还包括适配器下部，其可拆卸地连接到患者支架。 适配器还包括倾斜装置，通过该倾斜装置，适配器上部可相对于适配器下部部分移动。

    Magnetic resonance system with transmission of a digitized magnetic resonance signal across an air gap
    30.
    发明授权
    Magnetic resonance system with transmission of a digitized magnetic resonance signal across an air gap 有权
    磁共振系统，通过气隙传输数字化的磁共振信号

    公开(公告)号：US08258787B2

    公开(公告)日：2012-09-04

    申请号：US12563331

    申请日：2009-09-21

    申请人： Hubertus Fischer ,  Wolfgang Renz

    发明人： Hubertus Fischer ,  Wolfgang Renz

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3621 ,  G01R33/3692

    摘要： A magnetic resonance system has a patient receptacle and a base body. The patient receptacle has a subframe and a patient bed supported thereon so as to move a patient thereon through the base body. The base body has a basic field magnet system, a gradient system and an RF system that are operable to obtain an analog magnetic resonance signal from the patient. The patient receptacle has a signal conversion device composed of an A/D converter, a modulator, and a transmitter. The base body has a signal conversion device composed of a receiver and a demodulator. The A/D converter receives the magnetic resonance signal and digitizes it. The modulator modulates a carrier signal with the digitized magnetic resonance signal. The transmitter transmits the modulated carrier signal via an air gap to the receive. The receiver receives the transmitted carrier signal. The demodulator extracts the digitized magnetic resonance signal from the received carrier signal by demodulation and supplies it to an evaluation device for continuing evaluation.

    摘要翻译： 磁共振系统具有患者容器和基体。 患者容器具有支撑在其上的子框架和患者床，以使患者在其上移动穿过基体。 基体具有可操作以从患者获得模拟磁共振信号的基本场磁体系统，梯度系统和RF系统。 患者插座具有由A / D转换器，调制器和发射器组成的信号转换装置。 基体具有由接收器和解调器构成的信号转换装置。 A / D转换器接收磁共振信号并对其进行数字化。 调制器用数字化的磁共振信号调制载波信号。 发射机通过气隙将调制载波信号发送到接收机。 接收机接收发送的载波信号。 解调器通过解调从接收的载波信号中提取数字化的磁共振信号，并将其提供给用于继续评估的评估装置。