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    • 3. 发明申请
    • Embolic filtering devices
    • 栓塞过滤装置
    • US20050004595A1
    • 2005-01-06
    • US10675611
    • 2003-09-29
    • William BoyleJohn PappCharles PetersonPaul MullerDonald SchwartenKathern Lind
    • William BoyleJohn PappCharles PetersonPaul MullerDonald SchwartenKathern Lind
    • A61F2/01A61M25/06A61M29/00
    • A61F2/013A61F2/97A61F2002/011A61F2002/015A61F2002/018A61F2230/0006A61F2230/008
    • An expandable frame for an embolic filtering device used to capture embolic debris in a body vessel includes a first half frame having a first control arm connected to a second control arm by a partial loop and a second half frame having a first control arm connected to a second control arm by a partial loop. The partial loops cooperatively form a composite loop for attachment of a filtering element which will expand in the body vessel to capture embolic debris entrained in the fluid of the vessel. The expandable frame and filtering element can be mounted on a filter support structure, such as a coiled wire, and mounted on a guide wire. The expandable frames include an articulation region which helps to distribute the strain which can be developed when the frame moves between an expanded and deployed position. The expandable frame may include further strain distributing bends which help distribute strain and increase the bendability of the frame. A modified torque device with extension arm prevents guide wire damage, prevents distal propagation of the peeling action and facilitates filter deployment during operation.
    • 用于捕获身体血管中的栓塞碎片的栓塞过滤装置的可膨胀框架包括:第一半框架,具有通过部分回路连接到第二控制臂的第一控制臂,以及具有连接到第二控制臂的第二控制臂的第二半框架 第二控制臂通过部分回路。 部分回路协同地形成用于附接过滤元件的复合回路,该过滤元件将在体内容器中膨胀以捕获携带在血管流体中的栓塞碎片。 可膨胀框架和过滤元件可以安装在诸如线圈的过滤器支撑结构上,并且安装在导丝上。 可扩展框架包括铰接区域,其有助于分布当框架在展开位置和展开位置之间移动时可展开的应变。 可扩展框架可以包括进一步的应变分布弯曲,其有助于分布应变并增加框架的可弯曲性。 具有延伸臂的改进的扭矩装置防止导丝损坏,防止剥离动作的远端传播,并且在操作期间有助于过滤器部署。