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    • 3. 发明授权
    • Catheter with expandable multiband segment
    • 导管与可扩展的多带段
    • US6027519A
    • 2000-02-22
    • US208715
    • 1998-12-09
    • Ulf Harry Stanford
    • Ulf Harry Stanford
    • A61M29/00A61M29/04
    • A61M29/02
    • A catheter is provided for use in blood vessels and other body canals having one or more expandable segments. Each expandable segment includes a plurality of longitudinally extending bands, each band having a plurality of buckle points so that, as compressive axial forces are applied, the bands bend at the buckle points in a predetermined manner to expand outwardly. Fluid passageways are provided to apply the necessary axial compressive forces. A flexible resilient membrane encloses the expandable section and retracts the section so that the catheter may be withdrawn. The catheter is usable with or without stents. Multiple expandable segments may be utilized on the catheter for multi-tasking such as pre-expanding an artery and inserting one or two stents in the pre-expanded artery in a single procedure without withdrawing the catheter.
    • 提供用于血管和其他具有一个或多个可扩展区段的身体运河的导管。 每个可扩展段包括多个纵向延伸的带,每个带具有多个带扣点,使得当作为压缩轴向力施加时,带以预定方式在扣环处弯曲以向外扩展。 提供流体通道以施加必要的轴向压缩力。 柔性弹性膜包围可膨胀部分并缩回部分,使得导管可以被抽出。 该导管可用于或不具有支架。 可以在导管上使用多个可扩展区段用于多任务,例如预先扩张动脉并且在单个过程中将一个或两个支架插入预扩张动脉中而不抽出导管。