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    • 67. 发明申请
    • HEART VALVE PROSTHESIS
    • 心脏瓣膜预防
    • US20170000605A1
    • 2017-01-05
    • US15266924
    • 2016-09-15
    • Medtronic, Inc.
    • Igor Kovalsky
    • A61F2/24
    • A61F2/2418A61F2/2436A61F2220/0008A61F2220/0058A61F2230/0013A61F2230/005A61F2230/0067A61F2230/0069A61F2230/008A61F2250/0036
    • A heart valve prosthesis configured for deployment within a native heart valve. The heart valve prosthesis includes a tubular stent and a prosthetic valve component disposed within and secured to the stent. In addition, at least two positioning elements are coupled to a distal end of the stent to position and anchor the prosthesis within the native heart valve. Each positioning element transforms from a compressed configuration in which the positioning elements distally extend from the distal end of the stent to a deployed configuration in which the positioning elements proximally extend from the distal end of the stent. Each positioning element includes at least one U-shaped or V-shaped support arm that bends radially outward and then towards an outer surface of the stent such that it translates more than ninety degrees from the compressed configuration. Each positioning element may include an outer support arm and an inner support arm.
    • 配置用于部署在天然心脏瓣膜内的心脏瓣膜假体。 心脏瓣膜假体包括管状支架和布置在支架内并固定到支架上的假体瓣膜部件。 另外,至少两个定位元件联接到支架的远端,以将假体定位和锚固在天然心脏瓣膜内。 每个定位元件从其中定位元件从支架的远端远端延伸到其中定位元件从支架的远端向近端延伸的展开构型的压缩构型变换。 每个定位元件包括至少一个U形或V形支撑臂,其向径向向外弯曲并且然后朝向支架的外表面弯曲,使得其从压缩构型转移超过九十度。 每个定位元件可以包括外支撑臂和内支撑臂。