Electromagnetic radiation transparent device and method of making thereof
    1.
    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

    IPC分类号: A61F2/06

    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。

    Optical MRI catheter system
    2.
    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

    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。

    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:US07389137B2

    公开(公告)日:2008-06-17

    申请号:US11119677

    申请日:2005-05-02

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

    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。

    Protective assembly
    6.
    发明授权
    Protective assembly 失效
    防护装配

    公开(公告)号:US06971391B1

    公开(公告)日:2005-12-06

    申请号:US10373377

    申请日:2003-02-24

    摘要: An assembly for protecting biological tissue from the effects of heating. The assembly contains a conductor in contact with the biological tissue and forming an electrical circuit comprising the biological tissue. The assembly contains a device for modifying the impedance of the electrical circuit such that, at a frequency of from about 10 megahertz to about 150 megahertz, such impedance is at least about 0.5 ohms per centimeter of length of said conductor. The assembly also contains a device for limiting the flow of current through the biological tissue such that, when the assembly is exposed to an alternating current electromagnetic field at a frequency of 64 megahertz and a magnetic field strength of 1.5 Tesla for 15 minutes, the temperature of the biological tissue does not exceed 42 degrees Celsius.

    摘要翻译: 用于保护生物组织免受加热影响的组件。 组件包含与生物组织接触的导体并形成包括生物组织的电路。 组件包含用于修改电路的阻抗的装置,使得在约10兆赫兹至约150兆赫兹的频率处,这种阻抗为所述导体的每厘米长度至少约0.5欧姆。 组件还包含用于限制通过生物组织的电流的装置,使得当组件暴露于频率为64兆赫的交流电磁场和1.5特斯拉的磁场强度15分钟时,温度 的生物组织不超过42摄氏度。

    Magnetic resonance imaging interference immune device
    8.
    发明授权
    Magnetic resonance imaging interference immune device 有权
    磁共振成像干扰免疫装置

    公开(公告)号:US07388378B2

    公开(公告)日:2008-06-17

    申请号:US11248862

    申请日:2005-10-12

    IPC分类号: G01V3/00

    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。

    Medical leads with frequency independent magnetic resonance imaging protection
    9.
    发明授权
    Medical leads with frequency independent magnetic resonance imaging protection 有权
    医疗线具有频率独立的磁共振成像保护

    公开(公告)号:US07865247B2

    公开(公告)日:2011-01-04

    申请号:US11956150

    申请日:2007-12-13

    IPC分类号: A61N1/05

    摘要: A medical device having a diode configuration in a lead assembly that substantially reduces induced currents in a lead assembly and at a tissue interface. The diodes configure an electrical path such that a stimulation pulse travels from the medical device to a selected tissue, and a current induced by an external changing electromagnetic signal is reduced and/or prevented from travelling the electrical path from the selected tissue to the medical device. The diodes may be at least partially contained in an electrode of the medical device.

    摘要翻译: 一种在引线组件中具有二极管配置的医疗设备,其基本上减少了引线组件和组织界面处的感应电流。 二极管配置电路,使得刺激脉冲从医疗装置传播到选定的组织,并且减少和/或阻止由外部改变的电磁信号感应的电流使电路从选定的组织传播到医疗装置 。 二极管可以至少部分地包含在医疗装置的电极中。