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24 条记录 (耗时 0.024 秒)

    Coated stent assembly and coating materials
    2.
    发明申请
    Coated stent assembly and coating materials 审中-公开
    涂层支架组件和涂层材料

    公开(公告)号：US20060140867A1

    公开(公告)日：2006-06-29

    申请号：US11128591

    申请日：2005-05-13

    申请人： Jeffrey Helfer ,  Xingwu Wang ,  Robert Gray ,  Howard Greenwald

    发明人： Jeffrey Helfer ,  Xingwu Wang ,  Robert Gray ,  Howard Greenwald

    IPC分类号： A61K49/06

    CPC分类号： A61K49/1821 ,  B82Y5/00

    摘要： A high magnetic susceptibility nanomagnetic material that may be attached to recognition molecules and other therapeutic biological materials so as to be targeted to specific biologic tissues, thereby enabling the presence of the targeted tissue to be detected under magnetic resonance imaging with much greater sensitivity. Also a stent coated with such nanomagnetic material to enable artifact free imaging of such stent under magnetic resonance imaging.

    摘要翻译： 可以附着到识别分子和其他治疗生物材料上以便靶向特定生物组织的高磁化率纳米磁性材料，从而使得能够以更高的灵敏度在磁共振成像下存在待检测的靶组织。 还有一种涂有这种纳米磁性材料的支架，以在磁共振成像下能够对这种支架进行无伪影成像。

    Coated stent and MR imaging thereof
    3.
    发明申请
    Coated stent and MR imaging thereof 审中-公开
    涂层支架及其MR成像

    公开(公告)号：US20050178584A1

    公开(公告)日：2005-08-18

    申请号：US11052263

    申请日：2005-02-07

    申请人： Xingwu Wang ,  Robert Gray ,  Jeffrey Helfer

    发明人： Xingwu Wang ,  Robert Gray ,  Jeffrey Helfer

    IPC分类号： A61F2/06

    CPC分类号： A61L31/088 ,  A61F2/82 ,  A61L31/14 ,  A61L2400/12

    摘要： Disclosed in this specification is a stent coated with a layer comprised of particulates which have an average particle size of less than 100 nanometers; a saturation magnetization of at least 2,000 gauss; and where the average coherence length between the particulates is from about 1 nanometer to about 50 nanometers.

    摘要翻译： 在本说明书中公开了一种涂覆有平均粒径小于100纳米的颗粒的层的支架; 至少2,000高斯的饱和磁化强度; 并且其中颗粒之间的平均相干长度为约1纳米至约50纳米。

    Magnetically shielded conductor
    4.
    发明申请
    Magnetically shielded conductor 审中-公开

    公开(公告)号：US20050247472A1

    公开(公告)日：2005-11-10

    申请号：US11151099

    申请日：2005-06-13

    申请人： Jeffrey Helfer ,  Xingwu Wang

    发明人： Jeffrey Helfer ,  Xingwu Wang

    IPC分类号： A61N1/16 ,  H01B7/29 ,  H01B11/10

    CPC分类号： A61N1/16 ,  H01B11/1066

    摘要： A conductor assembly that contains a flexible conductor and a layer of nanomagnetic material coated onto the conductor. The layer of nanomagnetic material has a tensile modulus of elasticity of at least about 15×106 pounds per square inch, an average particle size of less than 100 nanometers, a saturation magnetization of from about 200 to about 26,000 Gauss, and a thickness of less than about 2 microns.

    Magnetic resonance imaging interference immune device
    9.
    发明申请
    Magnetic resonance imaging interference immune device 有权
    磁共振成像干扰免疫装置

    公开(公告)号：US20060030774A1

    公开(公告)日：2006-02-09

    申请号：US11248862

    申请日：2005-10-12

    申请人： Robert Gray ,  Jeffrey Helfer

    发明人： Robert Gray ,  Jeffrey Helfer

    IPC分类号： A61B6/00 ,  A61M25/00

    CPC分类号： A61N1/37 ,  A61N1/05 ,  A61N1/086 ,  A61N1/3718 ,  G01R33/3685

    摘要： A medical assembly includes a multi-wire lead having a plurality of coiling loops. The multi-wire lead has a gap region and a non-gap region. The gap region has adjacent coiling loops of the multi-wire lead with gaps therebetween so as to form different impedance in the gap region than impedance in the non-gap region. The non-gap region has adjacent coiling loops of the multi-wire lead with no gaps therebetween. The gaps may provide inter-loop capacitance. The multi-wire lead may have a plurality of gap regions, each gap region having a non-gap region therebetween.

    摘要翻译： 医疗组件包括具有多个卷绕环的多线引线。 多线引线具有间隙区域和非间隙区域。 间隙区域具有在其间具有间隙的多线引线的相邻卷绕环，以便在间隙区域中形成与非间隙区域中的阻抗不同的阻抗。 非间隙区域具有多线引线的相邻卷绕环，其间没有间隙。 间隙可以提供环路间电容。 多线引线可以具有多个间隙区域，每个间隙区域之间具有非间隙区域。

    Optical MRI catheter system
    10.
    发明申请
    Optical MRI catheter system 失效
    光学MRI导管系统

    公开(公告)号：US20050197563A1

    公开(公告)日：2005-09-08

    申请号：US11119677

    申请日：2005-05-02

    申请人： Jeffrey Helfer ,  Stuart MacDonald ,  Robert Gray ,  Christopher Thomas

    发明人： Jeffrey Helfer ,  Stuart MacDonald ,  Robert 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 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。