Aortic valve prosthesis, particularly suitable for transcatheter implantation

摘要

A radially expandable and collapsible armature (9), particularly suitable for aortic valve prosthesis, comprises two annular support elements (10, 12) securing a plurality of support pillars (14), and a plurality of upper (16) and lower (18) radially projecting formations, circumferentially spaced and mutually separated, so that said radially projecting formations (16, 18) are independently expandable and contractible.