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    • 54. 发明授权
    • Extractable implantable medical lead
    • 可提取植入式医用铅
    • US06801809B2
    • 2004-10-05
    • US09854999
    • 2001-05-14
    • Timothy G. LaskeSteven L. WaldhauserMark T. StewartCatherine E. TaylorKenneth W. Keeney
    • Timothy G. LaskeSteven L. WaldhauserMark T. StewartCatherine E. TaylorKenneth W. Keeney
    • A61N105
    • A61N1/056A61N2001/0578
    • A medical electrical lead with a tip-ring assembly optimized to resist damage during extraction. The lead includes an elongated plastic tube and at least two elongated conductors mounted in the plastic tube. A tip-ring assembly is mounted to the distal end of the tube, the tip-ring assembly including a ring electrode coupled to one of the conductors, a tip electrode located distal to the ring electrode and coupled to another of the conductors and two molded plastic components separately fabricated of a plastic harder than the plastic tube, adhered to one another and together defining a circumferential groove in which the ring electrode is located and mechanically coupled to the tip electrode. The tip electrode may be provided with a proximally extending electrode shank covered by a tine sleeve which is fabricated of a plastic softer than the molded plastic components and is adhered to more distally located molded plastic component. The more distally located molded plastic component preferably overlaps the electrode shank to provide a stronger structure.
    • 具有尖端环组件的医疗电气引线,优化以防止在提取期间的损坏。 引线包括细长塑料管和安装在塑料管中的至少两根细长导体。 尖端环组件安装到管的远端,尖端环组件包括耦合到一个导体的环形电极,位于环形电极远侧并连接到另一个导体的尖端电极,以及两个模制 分别由比塑料管更硬的塑料制成的塑料部件彼此粘合在一起并且一起形成环形电极所在的并且机械地联接到尖端电极的周向槽。 尖端电极可以设置有由齿形套筒覆盖的近端延伸的电极柄,其由比模制的塑料部件更软的塑料制成并且被粘附到更远端定位的模制塑料部件上。 更远端定位的模制塑料部件优选地与电极柄重叠以提供更强的结构。