公开(公告)号：US4822355A

公开(公告)日：1989-04-18

申请号：US210165

申请日：1988-06-21

申请人： G. S. Bhuvaneshwar

发明人： G. S. Bhuvaneshwar

IPC分类号： A61F2/00 ,  A61F2/24 ,  A61L27/08 ,  A61L27/14 ,  A61L27/30

CPC分类号： A61F2/2406 ,  A61F2/2409 ,  A61L27/08 ,  A61L27/14 ,  A61L27/303 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00047 ,  A61F2310/00161 ,  A61F2310/0058 ,  A61F2310/00862 ,  A61F2310/0088 ,  Y10S623/90

摘要： Improved heart valve assembly 1(FIG. 4) includes: Sewing ring 2 made preferably of woven/knitted fabric of carbon/carbon coated polyester/polytetra-fluoroethylene;Metallic valve housing 3, with external groove accommodating sewing ring, with flat lugs 3a on one side and lug 3b having hook 3c on the other side, said housing being preferably made of "Stellite", titanium or alloys of titanium with aluminum, vanadium or palladium or of stainless steel or cobalt based alloys optionally with coating of boron nitride, titanium nitride or diamond and;Valve occluder disc 4 made of Agate, polyacetal homopolymer, synthetic sapphire, synthetic ruby, corundum or ceramics like alumina, tungsten carbide, titanium carbide or their mixture or of metals like aluminum, titanium, steel or cobalt-chromium-tungsten alloy having coating of one or more of said ceramics, and tapered surface 4a with depression/groove 4c therein held by hook 3c on its less pronounced depression 4d as seen in FIG. 5 more clearly.

摘要翻译： 改进的心脏瓣膜组件1（图4）包括：优选由碳/碳涂覆的聚酯/聚四氟乙烯的编织物/针织物制成的缝合环2; 金属阀壳体3具有外槽容纳缝合环，一侧具有扁平凸耳3a，另一侧具有钩3c，所述壳体优选由“钨铬铁合金”制成，钛或钛与铝合金，钒或 钯或不锈钢或钴基合金，任选具有氮化硼，氮化钛或金刚石的涂层; 由玛瑙，聚缩醛均聚物，合成蓝宝石，合成红宝石，刚玉或陶瓷如氧化铝，碳化钨，碳化钛或它们的混合物制成的闭塞堵塞盘4或诸如铝，钛，钢或钴 - 铬 - 钨合金的金属，具有涂层 一个或多个所述陶瓷和锥形表面4a，其中凹陷/凹槽4c在其中由钩3c保持在其不太明显的凹陷4d上，如图3所示。 5更清楚