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    • 5. 发明申请
    • Method of Delivering a Prosthetic Heart Valve
    • 提供假性心脏瓣膜的方法
    • US20110054596A1
    • 2011-03-03
    • US12855378
    • 2010-08-12
    • David M. Taylor
    • David M. Taylor
    • A61F2/24
    • A61F2/2427A61F2/2433A61F2/2436A61F2230/0069A61M25/0138A61M25/0147
    • A method of delivering a prosthetic heart valve to a native valve site within the human vasculature. The prosthetic valve is disposed on a balloon at the end of a balloon catheter. The balloon catheter passes through a delivery sleeve assembly. A pull wire travels from the handle to a distal end of the delivery sleeve assembly. Actuation of the handle pulls on the pull wire, which causes the delivery sleeve assembly to bend for facilitating navigation through a patient's vasculature. A stretchable cover is preferably placed over the slotted tube for biasing the steerable catheter toward a straight position. Once advanced to the vicinity of the native valve site, the prosthetic valve may be accurately positioned by advancing the balloon catheter relative to the delivery sleeve assembly and then deployed within the native valve site by inflating the balloon. In an alternative embodiment, the delivery sleeve assembly may be used to advance a self-expanding prosthetic heart valve through a patient's vasculature and a pusher member may be used to eject the prosthetic valve at the native valve site.
    • 将假体心脏瓣膜递送到人类脉管系统内的天然瓣膜部位的方法。 假体瓣膜设置在球囊导管末端的球囊上。 气囊导管穿过输送套筒组件。 拉线从手柄行进到输送套筒组件的远端。 手柄的致动拉动拉线,这导致输送套筒组件弯曲以便于通过患者的脉管系统导航。 可伸缩盖优选地放置在开槽管上方,用于将可转向导管朝向直线位置偏压。 一旦进入本地瓣膜部位附近,可以通过相对于输送套筒组件前进球囊导管来准确地定位假体瓣膜,然后通过使气囊膨胀而部署在自然瓣膜部位内。 在替代实施例中,输送套筒组件可以用于通过患者的脉管系统推进自扩张假体心脏瓣膜,并且可以使用推动器构件将天然瓣膜部位的人工瓣膜排出。