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    THERMAL SHIELD TO COLDHEAD SLEEVE THERMAL CONTACT
    4.
    发明申请
    THERMAL SHIELD TO COLDHEAD SLEEVE THERMAL CONTACT 有权
    冷热套管热连接器

    公开(公告)号：US20050228262A1

    公开(公告)日：2005-10-13

    申请号：US10708979

    申请日：2004-04-05

    申请人： Longzhi Jiang ,  Gregory Lehmann ,  Clifford Ginfrida

    发明人： Longzhi Jiang ,  Gregory Lehmann ,  Clifford Ginfrida

    IPC分类号： A61B5/05 ,  G01R33/3815

    CPC分类号： G01R33/3815

    摘要： A magnetic resonance imaging magnet assembly is provided. The assembly comprises a outer thermal shield having an operational temperature. The assembly further includes a cold sleeve assembly comprising a plurality of braid elements mounted to a cooler block and a highly thermally conductive block mounted between the cooler block and the outer thermal shield. The highly thermally conductive block is welded to the outer thermal shield and is welded to the cooler block. The highly thermally conductive block has greater thermal conductance than the outer thermal shield.

    摘要翻译： 提供磁共振成像磁体组件。 组件包括具有操作温度的外部热屏蔽。 组件还包括冷套筒组件，其包括安装到冷却器块的多个编织元件和安装在冷却器块和外部热屏蔽之间的高导热块。 高导热块被焊接到外部热屏蔽并焊接到冷却器块。 高导热块具有比外部热屏蔽更大的导热性。

    SUPERCONDUCTIVE MAGNET INCLUDING A CRYOCOOLER COLDHEAD
    5.
    发明申请
    SUPERCONDUCTIVE MAGNET INCLUDING A CRYOCOOLER COLDHEAD 有权
    超级磁铁包括一个球墨铸铁

    公开(公告)号：US20060022779A1

    公开(公告)日：2006-02-02

    申请号：US10710682

    申请日：2004-07-28

    申请人： Longzhi Jiang ,  Gregory Lehmann ,  Edwin Legall

    发明人： Longzhi Jiang ,  Gregory Lehmann ,  Edwin Legall

    IPC分类号： H01F6/00

    CPC分类号： H01F6/04 ,  F25B9/14 ,  F25B2400/17 ,  F25D19/006 ,  G01R33/3815

    摘要： A zero boiloff cryogen cooled recondensing superconducting magnet assembly including superconducting magnet coils suitable for magnetic resonance imaging including a cryogen pressure vessel to contain a liquid cryogen reservoir to provide cryogenic temperatures to the magnet coils for superconducting operation; a vacuum vessel surrounding the pressure vessel and spaced therefrom; a first thermal shield surrounding and spaced from the pressure vessel; a second thermal shield surrounding and spaced from the first thermal shield and intermediate the vacuum vessel and the first shield; a cryocooler thermally connected by a first and a second thermal interface to the first and second thermal shields, respectively; a recondenser positioned in the space between the pressure vessel and the first thermal shield and thermally connected by a thermal interface to the cryocooler to recondense, back to liquid, cryogen gas provided from the pressure vessel; and means for returning the recondensed liquid cryogen the pressure vessel; wherein the second thermal shield surrounding the first thermal shield reduces a radiation heat load from the first thermal shield to the pressure vessel lowering boiloff of cryogen gas under conditions of failure or power off of the cryocooler.

    摘要翻译： 一种零沸腾冷冻再冷凝超导磁体组件，包括适用于磁共振成像的超导磁体线圈，包括冷冻剂压力容器，以容纳液体冷冻剂储存器，以向超导体操作的磁体线圈提供低温; 围绕压力容器并与之隔开的真空容器; 围绕并与压力容器隔开的第一热屏蔽; 围绕第一热屏蔽并与真空容器和第一屏蔽件间隔开的第二热屏蔽; 分别通过第一和第二热界面热连接到第一和第二热屏蔽的低温冷却器; 再冷凝器定位在压力容器和第一热屏蔽之间的空间中，并通过热界面与低温冷却器热连接以重新冷凝，从压力容器提供的液体冷冻剂气体; 以及用于使所述再冷凝液体冷冻剂返回所述压力容器的装置; 其中围绕所述第一热屏蔽的所述第二热屏蔽减少从所述第一热屏蔽到所述压力容器的辐射热负荷，以在所述低温冷却器的故障或断电的条件下降低制冷剂气体的沸腾。

    Apparatus and method for providing electric cables within a magnetic resonance imaging system
    6.
    发明授权
    Apparatus and method for providing electric cables within a magnetic resonance imaging system 有权
    在磁共振成像系统内提供电缆的装置和方法

    公开(公告)号：US08735723B2

    公开(公告)日：2014-05-27

    申请号：US12946603

    申请日：2010-11-15

    申请人： Longzhi Jiang ,  Robert Belinski ,  Robbi McDonald

    发明人： Longzhi Jiang ,  Robert Belinski ,  Robbi McDonald

    IPC分类号： H02G15/02 ,  H01R9/05

    CPC分类号： G01R33/36 ,  G01R33/3858

    摘要： An apparatus and method for mounting cables within a magnetic resonance imaging (MRI) system are provided. One apparatus includes a cable assembly having a rigid support structure defining a channel with a cross-section and an electrical cable having a cross-section smaller than the cross-section of the channel. The electrical cable is secured within the channel of the rigid support structure, with the rigid support structure configured for coupling to a stationary component of the MRI system to resist movement from a movable component to which the electrical cable is connected.

    摘要翻译： 提供了一种用于将电缆安装在磁共振成像（MRI）系统内的装置和方法。 一种装置包括具有限定具有横截面的通道的刚性支撑结构的电缆组件和具有小于通道横截面的横截面的电缆。 电缆固定在刚性支撑结构的通道内，刚性支撑结构被配置为耦合到MRI系统的固定部件，以抵抗从电缆连接到的可移动部件的移动。

    Radio frequency (RF) coil for MRI having high thermal conductivity
    8.
    发明授权
    Radio frequency (RF) coil for MRI having high thermal conductivity 有权
    用于具有高导热性的MRI的射频（RF）线圈

    公开(公告)号：US08487621B2

    公开(公告)日：2013-07-16

    申请号：US12881375

    申请日：2010-09-14

    申请人： Saikat Saha ,  Longzhi Jiang ,  Timothy John Havens

    发明人： Saikat Saha ,  Longzhi Jiang ,  Timothy John Havens

    IPC分类号： G01V3/00

    CPC分类号： G01R33/34007 ,  A61B5/055 ,  G01R33/34015 ,  G01R33/34046 ,  Y10T29/49002

    摘要： An MRI apparatus and method is disclosed comprising a magnetic resonance imaging (MRI) system having a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images. The RF coil assembly comprises an RF tube, a plurality of electrically conductive members disposed around the RF tube and configured to transmit RF excitation pulses, a plurality of electrical components coupled to the electrically conductive members, and at least one thermally conductive substrate mounted upon the RF tube, wherein one of the plurality of electrically conductive members and the plurality of electrical components is mounted to the at least one thermally conductive substrate and is in thermal contact therewith.

    摘要翻译： 公开了一种MRI装置和方法，其包括具有围绕磁体的孔定位的多个梯度线圈的磁共振成像（MRI）系统，以及RF收发器系统和由脉冲模块控制的RF开关，以将RF信号传输到 RF线圈组件来获取MR图像。 RF线圈组件包括RF管，多个导电构件，其布置在RF管周围并且被配置为传输RF激励脉冲，耦合到导电构件的多个电气部件，以及安装在所述RF管上的至少一个导热基板 RF管，其中所述多个导电构件和所述多个电气部件中的一个安装到所述至少一个导热基板并与其热接触。

    THERMAL SHIELD AND METHOD FOR THERMALLY COOLING A MAGNETIC RESONANCE IMAGING SYSTEM
    9.
    发明申请
    THERMAL SHIELD AND METHOD FOR THERMALLY COOLING A MAGNETIC RESONANCE IMAGING SYSTEM 有权
    用于热磁化磁共振成像系统的热屏蔽和方法

    公开(公告)号：US20110284191A1

    公开(公告)日：2011-11-24

    申请号：US12783413

    申请日：2010-05-19

    申请人： Longzhi Jiang

    发明人： Longzhi Jiang

    IPC分类号： F28F13/00 ,  B23P11/00 ,  H01F6/04

    CPC分类号： H01F6/04 ,  G01R33/3804 ,  G01R33/3815

    摘要： A thermal shield and method for thermally cooling a magnetic resonance imaging (MRI) system are provided. One thermal shield includes a cooling tube forming a frame. The cooling tube is configured to receive therethrough cryogen fluid from a cryogen vessel of an MRI system. The thermal shield further includes at least one thermal control layer surrounding the frame and together with the frame is configured to provide thermal shielding of the MRI system.

    摘要翻译： 提供了用于热冷却磁共振成像（MRI）系统的热屏蔽和方法。 一个热屏蔽包括形成框架的冷却管。 冷却管被构造成从MRI系统的冷冻剂容器接收冷冻液。 热屏蔽还包括围绕框架的至少一个热控制层，并且与框架一起被配置为提供MRI系统的热屏蔽。