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    • 3. 发明公开
    • Aortic valve prosthesis
    • Aortenklappenprothese
    • EP2478869A1
    • 2012-07-25
    • EP11275138.3
    • 2011-11-04
    • Chuter, A. M. TimothyGopalakrishnamurthy, SharathRoeder, Blayne A.Leewood, Alan R.
    • Chuter, A. M. TimothyGopalakrishnamurthy, SharathRoeder, Blayne A.Leewood, Alan R.
    • A61F2/24
    • A61F2/2418A61F2/2412A61F2250/0029
    • A valve (120) for implantation in a patient comprises a proximal region (130) comprising a cylindrical shape, and a distal region (170) having a generally rectangular shape comprising opposing flat surfaces (172, 174) that are separated by narrower flat sides (175a, 175b). A tapered region (150) is disposed between the proximal and distal regions, where the tapered region comprises two opposing flat surfaces (152, 154) that transition into the opposing flat surfaces of the distal region. The opposing flat surfaces of the tapered region are angled relative to the proximal and distal regions. The opposing flat surfaces at the distal end of the valve allow fluid flow therethrough during antegrade flow and are generally adjacent to one another to inhibit blood flow through the valve during retrograde flow. Optionally, at least one reinforcement member (185) may be coupled to the valve to prevent prolapse of the valve during retrograde flow.
    • 用于植入患者的瓣膜(120)包括包括圆柱形形状的近侧区域(130)和具有大致矩形形状的远侧区域(170),其包括相对的平坦表面(172,174),所述相对平坦表面由较窄的平坦侧面 (175a,175b)。 锥形区域(150)设置在近端区域和远端区域之间,其中锥形区域包括两个相对的平坦表面(152,154),其过渡到远端区域的相对的平坦表面。 锥形区域的相对的平坦表面相对于近端区域和远端区域成一定角度。 在阀的远端处的相对的平坦表面允许流体在顺行流动期间流过其中,并且通常彼此相邻,以在逆行流动期间抑制通过阀的血液流动。 可选地,至少一个加强构件(185)可以联接到阀,以防止在逆行流动期间阀的脱垂。