Valve replacement devices, delivery device for a valve replacement device and method of production of a valve replacement device

Abstract

A device for heart valve replacement comprises a valve component having at least two valve leaflets preferably made of pericardium tissue. Each valve leaflet includes at least two tabs. The device further includes a stent component configured to be radially compressible into a compressed state and expandable into a functional state. The stent component comprises a first end, a second end and at least one intermediate section arranged between said first and said second end. The intermediate section has at least two commissural posts generally aligned parallel to an axis spanning from the first end to the second end. The commissural posts are formed in the shape of a wishbone.

What is claimed: 
     
         1 . A valve replacement device for transcatheter implantation, comprising:
 a stent component having an inflow section with an inflow extremity, an intermediate section, and an outflow section with an outflow extremity,   a maximal diameter of the inflow section being smaller than a maximal diameter of the outflow section;   the intermediate section having a diameter which is smaller than the maximal diameter of either of an inflow or an outflow section;   the stent component being radially compressible to a compressed state for delivery to a site of implantation and radially expandable to a functional state;   the stent component further comprising at least one attachment element for mating engagement with a delivery device;   valve leaflets mounted at least partly within the stent component;   an inner skirt and an outer skirt of porcine pericardial tissue;   an inner skirt attached to the valve leaflets and having commissural portions spaced apart by scalloped clearances, each clearance spanned by a respective leaflet, the inner skirt extending at least partly within the stent component towards the inflow extremity; and   an outer skirt extending at least partly outside the stent component, the outer skirt extending further than the inner skirt towards the inflow extremity.