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    • 67. 发明授权
    • Embolic protection device
    • 栓塞保护装置
    • US07837701B2
    • 2010-11-23
    • US11073936
    • 2005-03-08
    • Paul GilsonEamon BradyPadraig MaherDavid ValeCharles Taylor
    • Paul GilsonEamon BradyPadraig MaherDavid ValeCharles Taylor
    • A61M29/00
    • A61F2/01A61B2017/22051A61B2017/22067A61F2/013A61F2002/011A61F2002/015A61F2002/016A61F2002/018A61F2230/0006A61F2230/0067A61F2230/0069A61F2230/0093A61F2230/0097
    • An embolic protection device has a collapsible filter element (105) mounted on a carrier such as a guidewire (101). The filter element (105) collapses into the outer end of a catheter (118) for deployment and retrieval through a vascular system of a patient. The filter element (105) has a collapsible filter body with a proximal inlet end and a distal outlet end. The proximal inlet end has inlet openings sized to allow blood and embolic material enter the filter body. The outlet end has outlet openings which allow through passage of blood but retain embolic material within the filter body. After use, the catheter (118) is movable along the guidewire (101) to engage the proximal end of the filter element and close the inlet openings before sliding over the filter element from the proximal end to the distal end to progressively collapse the filter body on the guidewire (101) for retrieval. The filter element (105) may conveniently be mounted on a tubular sleeve (104) which is slidable and rotatable on the guidewire (101) between spaced-apart slops (106, 120) on the guidewire (101) which allows some manipulation of the guidewire independently of the filter when the filter is in use.
    • 栓塞保护装置具有安装在诸如导丝(101)的载体上的可折叠过滤元件(105)。 过滤元件(105)塌陷进入导管(118)的外端,用于通过患者的血管系统进行展开和回收。 过滤元件(105)具有可折叠的过滤器本体,其具有近端入口端和远端出口端。 近端入口端具有入口开口,其尺寸允许血液和栓塞物质进入过滤体。 出口端具有允许血液通过但保持栓塞材料在过滤器主体内的出口。 在使用之后,导管(118)可沿导丝(101)移动以接合过滤器元件的近端并且在从过滤元件从近端滑动到远端之前关闭入口开口,以使过滤体逐渐收缩 在导丝(101)上进行检索。 过滤元件(105)可以方便地安装在管状套筒(104)上,管状套筒(104)可在引导线(101)上的间隔开的斜面(106,120)之间在引导线(101)上滑动和旋转,从而允许一些操纵 当过滤器使用时,导丝与过滤器无关。