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    • 1. 发明授权
    • Temporary atrial cardioversion catheter
    • 临时心房心脏复律导管
    • US06438426B2
    • 2002-08-20
    • US09816542
    • 2001-03-23
    • Michael L. HofstadJohn D. OckulyMichael J. CoyleMark W. KrollSteven E. Scott
    • Michael L. HofstadJohn D. OckulyMichael J. CoyleMark W. KrollSteven E. Scott
    • A61N105
    • A61N1/056A61N2001/0585
    • A coronary sinus catheter includes a distal electrode portion with optimally-spaced and sized ring electrodes and a proximal electrode portion with at least one optimally-spaced and sized larger surface electrode. The catheter has all or some of the following features. First, at least one ring electrode of the distal electrode portion includes a first diameter less than a second diameter of at least one, more proximally disposed, ring electrode of the distal electrode portion. Second, at least one ring electrode of the distal electrode portion includes a first width less than a second width of at least one, more proximally disposed, ring electrode of the distal electrode portion. Third, the distal electrode portion includes at least two ring electrodes and the proximal shock electrode includes at least two larger surface coil electrodes. Fourth, the catheter further includes a collapsible section, adjacent the proximal electrode portion, to facilitate positioning of the catheter within the right atrium.
    • 冠状窦导管包括具有最佳间隔和尺寸的环形电极的远端电极部分和具有至少一个最佳间隔和尺寸较大的较大表面电极的近端电极部分。 导管具有以下所有或一些特征。 首先,远端电极部分的至少一个环形电极包括小于远端电极部分的至少一个较近近端的环形电极的第二直径的第一直径。 第二,远端电极部分的至少一个环形电极包括小于远侧电极部分的至少一个较近近端的环形电极的第二宽度的第一宽度。 第三,远端电极部分包括至少两个环形电极,近端冲击电极包括至少两个较大的表面线圈电极。 第四,导管还包括邻近近侧电极部分的可折叠部分,以便于将导管定位在右心房内。
    • 3. 发明授权
    • Even temperature linear lesion ablation catheter
    • 甚至温度线性病变消融导管
    • US06287306B1
    • 2001-09-11
    • US09276210
    • 1999-03-25
    • Mark W. KrollJohn D. OckulyRajesh Pendakanti
    • Mark W. KrollJohn D. OckulyRajesh Pendakanti
    • A61B1818
    • A61B18/1492A61B2018/0016A61B2018/00363A61B2018/00577A61B2018/00791
    • A linear lesion ablation catheter includes a conductive ablating portion having a predetermined resistivity profile for ablating tissue in a generally even temperature profile. In one embodiment, the conductive ablating portion is disposed on a distal portion of an elongate flexible member and has a resistance that increases exponentially along its length from a center of the ablating portion to a non-infinite value at opposite ends of the ablating portion. The ablating portion is adapted to produce a generally even temperature profile along a length of its surface when the ablating portion is in contact with a target tissue within a patient's body. In one example, the conductive ablating portion comprises a plurality of electrically connected conductive regions which extend from the center to the opposite ends of the ablating portion. Each of the conductive regions has a resistance value wherein the resistance values increase from section to section in successive orders of magnitude from the center of the ablating portion to the opposite ends of the ablating portion exponentially up to a non-infinite value. This predetermined resistivity profile produces linear lesions on target tissue without the resulting “edge effects” or “hot spots” at the ends of the electrode common in prior art linear lesion ablation catheters.
    • 线性损伤消融导管包括具有预定电阻率分布的导电烧蚀部分,用于在大致均匀的温度分布中烧蚀组织。 在一个实施例中,导电烧蚀部分设置在细长柔性构件的远侧部分上,并且具有沿其长度从烧蚀部分的中心指数地增加到消融部分的相对端处的非无限值的电阻。 当烧蚀部分与患者体内的靶组织接触时,烧蚀部分适于沿其表面的长度产生大致均匀的温度分布。 在一个示例中,导电烧蚀部分包括从烧蚀部分的中心延伸到相对端的多个电连接的导电区域。 每个导电区域具有电阻值,其中电阻值从烧蚀部分的中心到烧蚀部分的相对端的指数地增加到非无穷大的连续数量级,从而逐段增加。 这种预定的电阻率分布在靶组织上产生线性损伤,而不会在现有技术的线性损伤消融导管中常见的电极末端产生“边缘效应”或“热点”。
    • 4. 发明授权
    • Even temperature linear lesion ablation catheter
    • 甚至温度线性病变消融导管
    • US06780181B2
    • 2004-08-24
    • US09941522
    • 2001-08-29
    • Mark W. KrollJohn D. OckulyRajesh Pendakanti
    • Mark W. KrollJohn D. OckulyRajesh Pendakanti
    • A61B1818
    • A61B18/1492A61B2018/0016A61B2018/00363A61B2018/00577A61B2018/00791
    • A linear lesion ablation catheter includes a conductive ablating portion having a predetermined resistivity profile for ablating tissue in a generally even temperature profile. In one embodiment, the conductive ablating portion is disposed on a distal portion of an elongate flexible member and has a resistance that increases exponentially along its length from a center of the ablating portion to a non-infinite value at opposite ends of the ablating portion. The ablating portion is adapted to produce a generally even temperature profile along a length of its surface when the ablating portion is in contact with a target tissue within a patient's body. In one example, the conductive ablating portion comprises a plurality of electrically connected conductive regions which extend from the center to the opposite ends of the ablating portion. Each of the conductive regions has a resistance value wherein the resistance values increase from section to section in successive orders of magnitude from the center of the ablating portion to the opposite ends of the ablating portion exponentially up to a non-infinite value. This predetermined resistivity profile produces linear lesions on target tissue without the resulting “edge effects” or “hot spots” at the ends of the electrode common in prior art linear lesion ablation catheters.
    • 线性损伤消融导管包括具有预定电阻率分布的导电烧蚀部分,用于以大致均匀的温度分布消融组织。 在一个实施例中,导电烧蚀部分设置在细长柔性构件的远侧部分上,并且具有沿其长度从烧蚀部分的中心指数地增加到消融部分的相对端处的非无限值的电阻。 当烧蚀部分与患者体内的靶组织接触时,烧蚀部分适于沿其表面的长度产生大致均匀的温度分布。 在一个示例中,导电烧蚀部分包括从烧蚀部分的中心延伸到相对端的多个电连接的导电区域。 每个导电区域具有电阻值,其中电阻值从烧蚀部分的中心到烧蚀部分的相对端的指数地增加到非无穷大的连续数量级,从而逐段增加。 这种预定的电阻率分布在靶组织上产生线性损伤,而不会在现有技术的线性损伤消融导管中常见的电极末端产生“边缘效应”或“热点”。