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    • 51. 发明申请
    • Self centering delivery catheter
    • 自动定心输送导管
    • US20050222604A1
    • 2005-10-06
    • US10814988
    • 2004-03-31
    • Darin Schaeffer
    • Darin Schaeffer
    • A61F2/01A61M29/00
    • A61F2/01A61F2002/011A61F2002/018A61F2230/005A61F2230/008
    • A self centering delivery catheter is provided for delivering a filter into a vessel in a centered manner which aids in the retrieval of the filter. The delivery catheter generally comprises an outer sheath and a cannula disposed inside the outer sheath and axially translatable relative thereto. A set of centering legs are attached to the cannula. The centering legs are operable between a first retracted position and a second extended position, the centering legs moving radially away from the cannula as the centering legs move from the retracted position to the extended position. The relative position of the outer sheath and cannula control the operation of the centering legs. A control wire is disposed inside the cannula and is axially translatable relative thereto. Axial translation of the control wire operates a release mechanism to disengage the filter for delivering the filter into the vessel.
    • 提供自定心输送导管,用于以中心方式将过滤器输送到容器中,这有助于过滤器的回收。 输送导管通常包括外护套和设置在外护套内部并相对于其可轴向平移的套管。 一组中心腿连接到插管。 定心腿可在第一缩回位置和第二延伸位置之间操作,当定心腿从缩回位置移动到延伸位置时,定心腿沿径向远离套管移动。 外护套和套管的相对位置控制定心腿的操作。 控制线设置在套管内部并且可相对于其轴向平移。 控制线的轴向平移操作释放机构以使过滤器脱离以将过滤器输送到容器中。