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    • 8. 发明申请
    • Support structures for embolic filtering devices
    • 栓塞过滤装置的支撑结构
    • US20070167976A1
    • 2007-07-19
    • US11698516
    • 2007-01-25
    • William BoyleJohn PappFrancisco SanchezSteven Saville
    • William BoyleJohn PappFrancisco SanchezSteven Saville
    • A61M29/00
    • A61F2/013A61F2002/015A61F2002/018A61F2230/0006A61F2230/008A61M25/0014
    • An inner support structure for an embolic filtering device includes a tubular member having a first support region for supporting the proximal portion of a filter assembly and a second support region for supporting the distal portion of the filter assembly. The inner support structure facilitates rotation and restricts longitudinal movement of the embolic filtering device relative to a guide wire. Alternatively, the inner support structure includes a bushing coupled to the guide wire and a sleeve with a head on its proximal end positioned within a cavity in the bushing, thereby facilitating rotation and restricting longitudinal movement of the sleeve. The proximal portion of the filter assembly is supported on the sleeve. A sleeve for retaining the struts of an expandable cage of the embolic filtering device includes a central lumen for positioning the sleeve onto a guide wire and peripheral lumens for positioning and retaining the struts.
    • 用于栓塞过滤装置的内部支撑结构包括管状构件,其具有用于支撑过滤器组件的近侧部分的第一支撑区域和用于支撑过滤器组件的远端部分的第二支撑区域。 内部支撑结构有助于旋转并且限制栓塞过滤装置相对于导丝的纵向移动。 或者,内部支撑结构包括联接到导丝的衬套和套筒,其顶端位于其近端位于套管内的空腔内,从而有助于旋转并限制套筒的纵向移动。 过滤器组件的近端部分被支撑在套筒上。 用于保持栓塞过滤装置的可膨胀笼的支柱的套筒包括用于将套管定位在导丝和用于定位和保持支柱的外围腔的中央腔。