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    • 65. 发明授权
    • Method of delivering a stent
    • 输送支架的方法
    • US6113607A
    • 2000-09-05
    • US119344
    • 1998-07-20
    • Lilip LauWilliam M. HartiganFarhad KhosraviKurt R. KlemmUlrich Sigwart
    • Lilip LauWilliam M. HartiganFarhad KhosraviKurt R. KlemmUlrich Sigwart
    • A61F2/82A61F2/06A61F2/84A61M25/00A61M25/01A61F11/00
    • A61F2/97A61F2/958A61F2002/9517A61M2025/0183A61M2025/1081
    • The invention is directed to a stent delivery method and system which generally includes an elongated delivery sheath and a catheter disposed within an outer lumen of the sheath having an expandable member on its distal extremity. An expandable stent is mounted on the expandable member of the catheter. The distal portion of the sheath tapers down and is tucked within an elastic cone during transport of the stent to a stenotic region. A manipulating device is provided on the proximal end of the delivery system to effect relative axial movement between the sheath and the catheter so as to expose the stent mounted on the expandable member on the catheter within a body lumen such as a coronary artery and allow the expansion of the stent by the expansion of the expandable member. The elastic cone thereby disengages from the sheath and collapses about the distal end of the catheter. The delivery sheath has a first port in its distal end and a second port in the sheath wall proximally disposed from the distal end of the sheath. The catheter likewise has a first port in its distal end and a second port proximally disposed from the distal end of the catheter. An inner lumen extends within the distal portion of the catheter between the first and second ports and slidably receives a guiding member such as a guidewire. This system allows the stent to be delivered over a guidewire previously advanced to the desired location within a body lumen.
    • 本发明涉及一种支架输送方法和系统,其通常包括细长的输送护套和设置在护套的外腔内的导管,其在其远端上具有可扩张构件。 可扩张支架安装在导管的可扩张构件上。 护套的远端部分在将支架运送到狭窄区域期间逐渐变细并且被折叠在弹性锥体内。 操纵装置设置在输送系统的近端上以实现护套和导管之间的相对轴向移动,以便将安装在可扩张构件上的支架暴露在诸如冠状动脉的体腔内的导管上,并允许 通过可扩张构件的膨胀来扩张支架。 因此弹性锥体与护套分离并围绕导管的远端塌陷。 输送护套在其远端具有第一端口,并且护套壁中的第二端口从护套的远端向近侧设置。 导管同样具有其远端中的第一端口和从导管的远端向近侧设置的第二端口。 内腔在第一和第二端口之间的导管的远端部分内延伸,并且可滑动地容纳诸如导丝的引导构件。 该系统允许支架在先前推进到体腔内的期望位置的导丝上传送。
    • 66. 发明授权
    • Endolumenal stent-graft with leak-resistant seal
    • 腔内支架移植物具有防漏密封
    • US6015431A
    • 2000-01-18
    • US773479
    • 1996-12-23
    • Troy ThorntonLilip Lau
    • Troy ThorntonLilip Lau
    • A61F2/00A61F2/06
    • A61F2/07A61F2/97A61F2/848A61F2/89A61F2/954A61F2002/067A61F2002/075A61F2002/9511A61F2220/0075A61F2230/0054A61F2230/0078A61F2250/0039
    • An implantable medical device has a tubular member and a sealing member secured to an outer surface of the tubular member. The tubular member is expandable to engage an endolumenal wall and has a lumen for providing an artificial conduit for flow through an endolumenal space defined by that wall. The seal member occludes flow around the tubular member between the outer surface and the endolumenal wall. One suitable tubular member for use in the present invention is a stent-graft which may be bifurcated for use in protecting vascular wall malformations adjacent to vascular bifurcations against endolumenal pressure and flow. The seal member may be a flange that is oriented on the outer surface at one end of the tubular member as a one-way valve against flow. Multiple seal members may be used, either on opposite ends of the tubular member or in series at one end thereof. Where anchors are used to secure the tubular member to the endolumenal wall, the seal member is positioned to protect against flow through leakage paths formed at localized areas of deformation in the tubular wall adjacent to the anchors. One or more seal members may also be used with two or more tubular members to prevent flow through endolumenal spaces that remain open to flow due to gaps between the multiple, parallel tubular members.
    • 可植入医疗装置具有管状构件和固定到管状构件的外表面的密封构件。 管状构件可扩张以接合内腔壁,并具有内腔,用于提供用于流过由该壁限定的腔室空间的人造管道。 密封构件在外表面和内腔壁之间封闭管状构件周围的流动。 用于本发明的一种合适的管状构件是支架移植物,其可以分叉用于保护邻近血管分叉的血管壁畸形以抵抗内腔内压力和流动。 密封构件可以是在管状构件的一端的外表面上定向为防止流动的单向阀的凸缘。 可以在管状构件的相对端上或在其一端串联使用多个密封构件。 在使用锚固件将管状构件固定到内腔壁的情况下,密封构件被定位成防止流过形成在与锚固件相邻的管状壁中的局部变形区域处的泄漏路径。 一个或多个密封构件也可以与两个或多个管状构件一起使用,以防止由于多个平行的管状构件之间的间隙而保持开放的内腔空间的流动。