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    STENT AND REPLACEMETN HEART VALVE PROSTHESIS WITH IMPROVED FIXATION FEATURES
    1.
    发明公开
    STENT AND REPLACEMETN HEART VALVE PROSTHESIS WITH IMPROVED FIXATION FEATURES 审中-公开

    公开(公告)号：EP4289400A2

    公开(公告)日：2023-12-13

    申请号：EP23206769.4

    申请日：2019-02-14

    申请人： Tricares SAS

    发明人： RAHMIG, Georg ,  STRAUBINGER, Helmut ,  MARCHAND, Coralie

    IPC分类号： A61F2/848

    摘要： The invention relates to a heart valve prosthesis, comprising:
    an inner stent carrying a replacement heart valve, the inner stent having an inner proximal area and an inner distal area; and
    an outer stent having an outer proximal area, an outer distal area, and a middle area between the outer proximal area and the outer distal area, wherein each of the outer proximal area and the outer distal area has a diameter greater than a diameter of the middle area, forming a groove at the middle area, the groove configured to support fixation of the outer stent at an annulus of an endogenous heart valve,
    wherein the outer stent is radially outward of the inner stent to form an annular space between the inner stent and the outer stent,
    wherein the inner stent includes inner connecting struts at the inner proximal area of the inner stent, and wherein the outer stent includes outer connecting struts at the outer proximal area of the outer stent,
    wherein each inner connecting strut of the inner connecting struts is fixed to a corresponding outer connecting strut of the outer connecting struts, to connect the inner stent to the outer stent, and
    wherein the only portions of the inner stent and the outer stent that cross the annular space are one or both of the inner connecting struts and the outer connecting struts.