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    • 12. 发明授权
    • Embolic protection device
    • 栓塞保护装置
    • US06695865B2
    • 2004-02-24
    • US10136246
    • 2002-04-29
    • Christopher T. BoyleSteven R. Bailey
    • Christopher T. BoyleSteven R. Bailey
    • A61M2900
    • A61F2/013A61B17/221A61B2017/22042A61F2/07A61F2/90A61F2002/016A61F2002/018A61F2002/075A61F2230/005A61F2230/0067A61F2230/008A61F2230/0093Y10S977/876
    • An embolic protection device includes a catheter body having a central longitudinal lumen, a guidewire positioned within the central longitudinal lumen, and a graft member that is generally tubular in shape in an undeployed state and generally frustroconical in shape in a deployed state. A plurality of openings are formed in the graft member and a plurality of arm members interconnect a proximal end of the graft member with the catheter body. A distal end of the graft member is connected to the guidewire or the atraumatic tip. The graft member may be fabricated of superelastic materials, plastically deformable materials or self-expanding materials and the plurality of openings are capable of diametric expansion and reduction proportionate to the degree of diametric expansion and reduction of a corresponding transverse cross-sectional region of the graft member when in the deployed state to capture emboli or particulate matter and minimize extrusion of the captured material through the openings in the graft member when the graft member is collapsed.
    • 栓塞保护装置包括具有中心纵向内腔,位于中央纵向内腔内的导丝管的导管主体,以及处于未部署状态的大致管状形状的移植部件,并且在展开状态下通常为截头圆锥形状。 多个开口形成在移植物构件中,并且多个臂构件将移植物构件的近端与导管主体相互连接。 移植物件的远端连接到导丝或无创尖端。 接枝构件可以由超弹性材料制成,可塑性变形的材料或自膨胀材料,并且多个开口能够沿直径膨胀和缩径成比例地与接枝的相应的横截面区域的直径膨胀和还原程度成比例 当处于展开状态以捕获栓塞或颗粒物质并且当移植物构件折叠时,通过移植物构件中的开口使被捕获材料的挤出最小化。