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    • 57. 发明授权
    • Prosthetic heart valve
    • 假心脏瓣膜
    • US09474600B2
    • 2016-10-25
    • US14403374
    • 2012-05-24
    • Jun Yang
    • Jun Yang
    • A61F2/24
    • A61F2/2409A61F2/2412A61F2/2418A61F2210/0076A61F2220/0075
    • The present invention provides a prosthetic heart valve comprising a stent, an alloy wire and biological tissue leaflets, the biological tissue leaflets being sewn to the alloy wire which is wrapped with a first polyester cloth, and the alloy wire being sewn to the stent which is wrapped with a second polyester cloth, wherein the stent is ring-shaped, comprising: a first stent layer and a second stent layer which are closely hooping with each other; the first stem layer being on the outside of the second stent layer, the first stent layer being made of a first material, the second stent layer being made of a second material, the first material and the second material being elastic, and the hardness of the second material being higher than that of the first material. Through the design of making the stent always tend to remain annular both in a stationary state and in a stressed state, the prosthetic heart valve of the present invention ensures the perfect match between the stent and the alloy wire, thereby increasing the stability of the entire valve and extending the service life of the valve.
    • 本发明提供了一种假体心脏瓣膜,其包括支架,合金丝和生物组织小叶,所述生物组织小叶被缝合到用第一聚酯布包裹的合金丝上,并且所述合金线被缝合到支架,所述支架是 用第二聚酯布包裹,其中所述支架是环形的,包括:彼此紧密结合的第一支架层和第二支架层; 所述第一茎层位于所述第二支架层的外侧,所述第一支架层由第一材料制成,所述第二支架层由第二材料制成,所述第一材料和所述第二材料是弹性的, 第二材料比第一材料高。 通过使支架总是倾向于在静止状态和应力状态下保持环状的设计,本发明的假体心脏瓣膜确保了支架和合金线之间的完美匹配,从而提高整体的稳定性 阀门,延长阀门的使用寿命。