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    Expandable implant devices for filtering blood flow from atrial appendages
    7.
    发明授权
    Expandable implant devices for filtering blood flow from atrial appendages 有权
    用于过滤心房血流的可扩展植入装置

    公开(公告)号：US08197527B2

    公开(公告)日：2012-06-12

    申请号：US11185425

    申请日：2005-07-19

    申请人： Thomas E Borillo ,  Dean Peterson ,  Gregg S Sutton ,  Jeffrey Welch

    发明人： Thomas E Borillo ,  Dean Peterson ,  Gregg S Sutton ,  Jeffrey Welch

    IPC分类号： A61F2/06

    CPC分类号： A61F2/013 ,  A61B17/12022 ,  A61B17/12122 ,  A61B17/12136 ,  A61B17/12159 ,  A61B17/12172 ,  A61B2017/00575 ,  A61F2/01 ,  A61F2002/015 ,  A61F2002/016 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/0069 ,  A61F2230/008

    摘要： Implant devices for filtering blood flowing through the ostium of an atrial appendage have component structures one or more of which are expandable. Devices with component structures in their unexpanded state have a compact size suitable for intra-cutaneous delivery to an atrial appendage situs. The expandable component structures are expanded in situ to deploy the devices. A device may have sufficiently short axial length so that most or almost all of the device length may fit within the ostium region. An expandable component structure in the device may include a blood-permeable filter element. The device may be deployed so that this component structure covers the ostium so as to direct the blood flow to pass through the filter element. The filter elements used in the devices may have hole size distributions selected to filter out harmful-size emboli. The filter elements may be embedded in elastic material so that hole-size distributions remain substantially unaffected by expansion of the device structures. Anchors attached to a component structure engage tissue surrounding the device and maintain the devices in position. The anchors may include inflatable anchors which engage interior walls of the atrial appendage.

    摘要翻译： 用于过滤血流通过心房的口的植入装置具有其中一个或多个可膨胀的部件结构。 具有未膨胀状态的组件结构的装置具有适合于皮内递送至心房附属部位的紧凑尺寸。 可扩展组件结构在现场扩展以部署设备。 装置可以具有足够短的轴向长度，使得装置长度的大部分或几乎全部可以适合于口腔区域。 该装置中的可扩张组件结构可包括透血过滤元件。 该装置可以部署成使得该部件结构覆盖口，以引导血液流过过滤元件。 在装置中使用的过滤器元件可以具有选择用于过滤有害尺寸栓塞的孔尺寸分布。 过滤元件可以嵌入弹性材料中，使得孔尺寸分布基本上不受设备结构的膨胀的影响。 附接到部件结构的锚点接合设备周围的组织并将设备维持在适当位置。 锚定器可以包括接合心房内壁附近的充气锚。