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    • 5. 发明申请
    • ANGIOPLASTY DEVICE WITH EMBOLIC FILTER AND FIXED FILTER HOUSING
    • 具有插入式过滤器和固定过滤器壳体的静电放电装置
    • WO2009151761A1
    • 2009-12-17
    • PCT/US2009/040202
    • 2009-04-10
    • CONTEGO MEDICAL LLCSACHAR, RavishPATEL, Udayan
    • SACHAR, RavishPATEL, Udayan
    • A61F2/06
    • A61F2/013A61F2002/018A61F2230/0006A61F2230/0067A61F2230/0069A61F2230/008
    • An interventional catheter such as an angioplasty device has an embolic filter attached to the same catheter shaft as the angioplasty balloon. The filter includes a filter ring slidably attached to the catheter shaft adjacent the distal end of the catheter. An actuation wire is attached to the filter ring and extends to a location outside of the patient for manipulation by the physician. A filter frame supporting a filter mesh is mounted to the filter ring and has a shape memory that is normally expanded. A filter housing is attached to the catheter shaft. The filter housing has side walls spaced apart from the catheter shaft to define a space therebetween. When the filter ring is retracted into the opening between the filter housing and the catheter shaft, the filter frame is collapsed against the catheter shaft. Pushing on the actuation wire advances the filter ring out of the housing and permits the filter frame to expand, opening the filter.
    • 诸如血管成形术装置的介入导管具有附接到与血管成形术气囊相同的导管轴的栓塞过滤器。 过滤器包括可滑动地附接到邻近导管远端的导管轴的过滤环。 致动丝线附接到过滤器环并且延伸到患者外部的位置,由医生操纵。 支撑过滤网的过滤器框架安装到过滤环上,并具有通常膨胀的形状记忆体。 过滤器壳体附接到导管轴。 过滤器壳体具有与导管轴间隔开的侧壁,以在其间限定一个空间。 当过滤器环缩回到过滤器壳体和导管轴之间的开口中时,过滤器框架相对于导管轴被折叠。 推动致动线将过滤器环推出壳体,并允许过滤器框架膨胀,打开过滤器。