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    • 18. 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。
    • 20. 发明授权
    • Arrangement for planting an endocardial cardiac lead
    • 种植心内膜心脏铅的安排
    • US06185464B2
    • 2001-02-06
    • US09262387
    • 1999-03-04
    • Matthew D. BonnerTimothy G. Laske
    • Matthew D. BonnerTimothy G. Laske
    • A61N100
    • A61N1/056A61M25/0043A61M25/01A61N2001/0578
    • An arrangement for introducing and implanting the electrode(s) of an endocardial implantable cardiac lead at a cardiac implantation site within a heart chamber or vessel. An elongated guide body formed of flexible material and extending between a guide body proximal end and a guide body distal end is advanced transvenously to position the guide body distal end in relation to the cardiac implantation site. A guide body tracking mechanism is coupled with the lead distal end for receiving and slidingly engaging the guide body to allow the cardiac lead to be advanced along the guide body until the electrode is positioned at the cardiac implantation site. A pusher mechanism formed of an elongated pusher body of flexible material extends between a pusher body proximal end and a pusher body distal end and has a cardiac lead engaging mechanism for engaging the cardiac lead at or adjacent the distal lead end. The pusher body has sufficient column strength to be advanced alongside the guide body and lead body with the cardiac lead engaging mechanism engaging and slidingly advancing the guide body tracking mechanism and the cardiac lead distally along the guide body to thereby allow the cardiac lead to be advanced along the guide body until the electrode is positioned at the cardiac implantation site. The lead body is released from the lead engaging mechanism and fixed, if the lead includes a fixation mechanism. The pusher mechanism is retracted by retraction of the pusher body.
    • 用于在心室或血管内的心脏植入部位处引入和植入心内可植入心脏引线的电极的装置。 由柔性材料形成并在引导体近端和引导体远端之间延伸的细长引导体相对于心脏植入部位传递推进以引导体远端。 引导体跟踪机构与引线远端联接,用于接收和滑动地接合引导体,以允许心脏引线沿引导体前进,直到电极定位在心脏植入部位。 由细长的柔性材料推动器构成的推动机构在推动体本体近端和推动体本体远端之间延伸,并且具有心脏引线接合机构,用于在远侧引线端处或与其相邻的心脏引线接合。 推动器主体具有足够的柱强度,使引导体和引线体沿着引导体接合并使引导体跟踪机构和心引导体沿引导体向远侧滑动地前进,从而允许心导线前进 沿着引导体直到电极位于心脏植入部位。 如果引线包括固定机构,则引线体从引线接合机构释放并固定。 推动器机构通过推动器主体的缩回缩回。