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    Electromagnetic radiation immune medical assist device adapter
    1.
    发明授权
    Electromagnetic radiation immune medical assist device adapter 失效
    电磁辐射免疫医疗辅助装置适配器

    公开(公告)号：US06725092B2

    公开(公告)日：2004-04-20

    申请号：US10132457

    申请日：2002-04-25

    申请人： Stuart G. MacDonald ,  Jeffrey L. Helfer ,  Michael L. Weiner

    发明人： Stuart G. MacDonald ,  Jeffrey L. Helfer ,  Michael L. Weiner

    IPC分类号： A61N100

    CPC分类号： A61N1/3752 ,  A61N1/086 ,  A61N1/3625 ,  A61N1/3718 ,  A61N1/3925

    摘要： An electromagnetic radiation immune medical assist system includes a medical assist device; a photonic lead having a proximal end and a distal end; and an adapter to operatively connect the medical assist device with the photonic catheter. The adapter includes a housing, an interface to provide an operative communication connection between the adapter and the medical assist device, a transducer to convert information from the medical assist device into optical energy, and an optical interface to provide an operative connection between the adapter and the photonic catheter.

    摘要翻译： 电磁辐射免疫医疗辅助系统包括医疗辅助装置; 具有近端和远端的光子引线; 以及用于将医疗辅助装置与光导管可操作地连接的适配器。 适配器包括壳体，用于在适配器和医疗辅助装置之间提供可操作的通信连接的接口，用于将来自医疗辅助装置的信息转换为光能的换能器，以及光学接口，以提供适配器和 光子导管。

    Optical MRI catheter system
    8.
    发明授权
    Optical MRI catheter system 失效
    光学MRI导管系统

    公开(公告)号：US07389137B2

    公开(公告)日：2008-06-17

    申请号：US11119677

    申请日：2005-05-02

    申请人： Jeffrey L. Helfer ,  Stuart G. MacDonald ,  Robert W. Gray ,  Christopher Thomas

    发明人： Jeffrey L. Helfer ,  Stuart G. MacDonald ,  Robert W. Gray ,  Christopher Thomas

    IPC分类号： A61B5/05 ,  A61B6/00 ,  G01V3/00

    CPC分类号： A61B5/055 ,  G01R33/285 ,  G01R33/34084 ,  G01R33/3692

    摘要： An assembly for delivering optical signals comprising a nuclear magnetic resonance system comprised of magnets, an NMR programmable logic unit, a signal input channel, and a command output channel; an optical interface assembly electrically connected to the nuclear magnetic resonance system, the optical interface assembly comprising a first laser modulated so as to produce laser optical signals, an interface optical to electrical signal convertor; and a catheter assembly connected to said optical interface assembly, the catheter assembly comprising a proximal end, a distal end, a fiber optic cable assembly, an electronics assembly disposed at the distal end comprised of a catheter electrical to optical signal convertor and a catheter optical to electrical signal convertor, and a first receiving coil disposed at the distal end.

    摘要翻译： 一种用于传送光信号的组件，包括由磁体组成的核磁共振系统，NMR可编程逻辑单元，信号输入通道和命令输出通道; 光学接口组件，其电连接到所述核磁共振系统，所述光学接口组件包括被调制以产生激光光信号的第一激光器，光信号到电信号转换器的接口; 以及连接到所述光学接口组件的导管组件，所述导管组件包括近端，远端，光纤电缆组件，设置在远端处的电子组件，所述电子组件包括电导向光信号转换器的导管和导管光学 到电信号转换器，以及设置在远端的第一接收线圈。

    Magnetically shielded assembly
    9.
    发明授权
    Magnetically shielded assembly 失效
    磁屏蔽组装

    公开(公告)号：US06713671B1

    公开(公告)日：2004-03-30

    申请号：US10303264

    申请日：2002-11-25

    申请人： Xingwu Wang ,  Jeffrey L. Helfer ,  Stuart G. MacDonald

    发明人： Xingwu Wang ,  Jeffrey L. Helfer ,  Stuart G. MacDonald

    IPC分类号： H05K900

    CPC分类号： B82Y25/00 ,  A61N1/16 ,  H01B11/10 ,  H01B11/1083 ,  H01F1/0063 ,  H01F10/007 ,  H01F10/324 ,  Y10T428/24983 ,  Y10T428/24992

    摘要： A shielded assembly containing a substrate and a shield. The shield contains both nanomagnetic material and a material with an electrical resistivity of from about 1 microohm-centimeter to about 1×1025 microohm centimeters. The nanomagnetic material has a mass density of at least about 0.01 grams per cubic centimeter, a saturation magnetization of from about 1 to about 36,000 Gauss, a coercive force of from about 0.01 to about 5000 Oersteds, a relative magnctic permeability of from about 1 to about 500,000, and an average particle size of less than about 100 nanometers.

    摘要翻译： 包含基板和屏蔽的屏蔽组件。 屏蔽包含纳米磁性材料和电阻率为约1微欧姆至约1×10 25微欧姆厘米的材料。 纳米磁性材料的质量密度为至少约0.01克/立方厘米，饱和磁化强度为约1至约36,000高斯，矫顽力为约0.01至约5000奥斯特，相对磁通量为约1至 约500,000，平均粒径小于约100纳米。