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    Optical MRI catheter system
    1.
    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。

    Optical MRI catheter system
    3.
    发明授权
    Optical MRI catheter system 失效
    光学MRI导管系统

    公开(公告)号：US06980848B2

    公开(公告)日：2005-12-27

    申请号：US11119718

    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： A61B5/055 ,  A61M25/095 ,  G01R33/28 ,  A61B5/05

    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; an optical interface assembly electrically connected to the nuclear magnetic resonance system, the optical interface assembly comprising a first laser for producing laser optical signals, an interface optical to electrical signal convertor, and an interface optical connector assembly; and a catheter assembly comprising a proximal end, a distal end, and a catheter optical connector assembly disposed at the proximal end and connected to the interface optical connector assembly of the optical interface assembly, 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： 一种用于传送包括核磁共振系统的光信号的组件; 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用于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接口光连接器组件; 以及导管组件，其包括近端，远端和导管光学连接器组件，所述导管光学连接器组件设置在所述近端并且连接到所述光学接口组件的接口光学连接器组件，光纤电缆组件， 远端包括导电到光信号转换器的导管和光信号到电信号转换器的导管，以及设置在远端的第一接收线圈。

    Electromagnetic radiation transparent device and method of making thereof
    4.
    发明授权
    Electromagnetic radiation transparent device and method of making thereof 有权
    电磁辐射透明装置及其制造方法

    公开(公告)号：US07344559B2

    公开(公告)日：2008-03-18

    申请号：US10923292

    申请日：2004-08-20

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

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

    IPC分类号： A61F2/06

    CPC分类号： A61B5/02007 ,  A61B5/055 ,  A61B2090/374 ,  A61F2/86 ,  A61F2/90 ,  A61F2/91 ,  A61F2210/009 ,  A61F2220/0016 ,  A61L31/022 ,  A61L31/124 ,  A61L31/18 ,  A61N1/16 ,  A61N2/00 ,  G01R33/285

    摘要： A medical device includes a pattern of electrically conductive material. The pattern of electrically conductive material has an anti-antenna geometrical shape such that the anti-antenna geometrical shape substantially prevents the medical device from creating an imaging artifact and/or substantially allows imaging of a volume within the medical device. The pattern may be formed by multiple “figure-8” shaped electrical conductors, multiple “figure-8” emulating electrical conductors, multiple sine-wave-like shaped electrical conductors, multiple zig-zag patterned electrical conductors, by multiple electrical conductors, each having sequential conductive loops, and/or a single conductor weaved into a loop mesh. The electrically conductive material may be titanium, tantalum, nitinol, stainless steel, and/or NbZr.

    摘要翻译： 医疗装置包括导电材料的图案。 导电材料的图案具有抗天线几何形状，使得反天线几何形状基本上防止医疗装置产生成像伪影和/或基本上允许医疗装置内的体积成像。 该图案可以由多个“图8”形电导体，多个“图8”仿真电导体，多个正弦波状电导体，多个锯齿形图案电导体，由多个电导体，每个 具有顺序导电回路，和/或编织成环网的单个导体。 导电材料可以是钛，钽，镍钛诺，不锈钢和/或NbZr。

    Electromagnetic radiation immune medical assist device adapter
    5.
    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。

    Magnetically shielded assembly
    7.
    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。