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    • 5. 发明授权
    • Everted filter device
    • 过滤器
    • US08092486B2
    • 2012-01-10
    • US12581960
    • 2009-10-20
    • Marwane BerradaRichard S. KusleikaKent D. Anderson
    • Marwane BerradaRichard S. KusleikaKent D. Anderson
    • A61M29/00A61B17/22
    • A61F2/013A61F2002/018A61F2230/0006A61F2230/0069A61F2230/008
    • Everting filter devices and methods for using the devices, including using the devices as intra-vascular filters to filter thrombus, emboli, and plaque fragments from blood vessels. The filter devices include a filter body nominally tubular in shape and having a large proximal opening. The filter body can extend from a proximal first end region distally over the non-everted exterior surface of the filter, further extending distally to a distal-most region, then converging inwardly and extending proximally toward the filter second end region, forming a distal everted cavity. The degree of eversion of the filter can be controlled by varying the distance between the filter first end region near the proximal opening and the closed second end region. Bringing the filter first and second end regions closer together can bring filter material previously on the non-everted filter exterior to occupy the distal-most region.
    • 永久过滤装置和使用装置的方法,包括使用装置作为血管内过滤器来从血管中过滤血栓,栓塞和斑块碎片。 过滤装置包括标称管状的过滤器体,并具有大的近端开口。 过滤器主体可以从近端第一端部区域远离过滤器的非转角外表面延伸,并进一步向远端延伸到最远侧区域,然后向内收敛并向近端朝向过滤器第二端部区域延伸,形成远端 腔。 可以通过改变近侧开口附近的过滤器第一端部区域与闭合的第二端部区域之间的距离来控制过滤器的外翻度。 使过滤器第一和第二端部区域更靠近在一起可以将过滤材料预先放置在非转角过滤器外部以占据最远侧区域。