Natural tissue heart valves and methods of making same

Details Natural tissue heart valves and methods of making same Natural tissue heart valves and methods of making same

A - Human Necessities

61

F

A61F 2/24 (2006.01)

Patent

CA 2284941

Improved, adaptable tissue-type heart valves and methods for their manufacture are disclosed wherein a dimensionally stable, pre-aligned tissue leaflet subassembly is formed and its peripheral edge clamped between and attached to an upper shaped wireform and a lower support stent. A variety of adaptable structural interfaces including suture rings, flanges, and conduits may be attached to the support stent with or without an outlet conduit disposed about the wireform to provide a tissue-type heart valve adaptable for use in either a natural heart or in mechanical pumping devices.

L'invention concerne des valvules cardiaques de type en tissu améliorées et adaptables, ainsi que leurs procédés de fabrication; on forme un sous-ensemble de valve en tissu de dimensions stables et prépositionné, son rebord périphérique étant serré et fixé entre une forme de fil profilée supérieure et une prothèse endovasculaire de support inférieure. Plusieurs interfaces de structure adaptables comprenant des marqueurs d'anestomose, des rebords et des conduits peuvent être attachées à la prothèse endovasculaire de support avec ou sans un conduit de sortie disposé autour de la forme de fil de manière à former une valvule cardiaque de type en tissu pouvant être adaptée pour une utilisation dans un coeur naturel ou dans des dispositifs de pompage mécaniques.

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