Patent ID: 9333075
Filing Date: 2016-05-10
CPC Classification: A61F

Claim Text:
1. A valve replacement device for transcatheter implantation, comprising: a stent component having an inflow extremity and an outflow extremity, the stent component being radially compressible to a compressed state for delivery to a site of implantation and radially expandable to a functional state, wherein the stent component further comprises an intermediate section between the inflow extremity and the outflow extremity, the intermediate section comprising at least two commissural posts; valve leaflets mounted at least partly within the stent component; an inner skirt attached to the valve leaflets, 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; wherein the leaflets are attached to the inner skirt, the inner skirt having commissural portions spaced by scallop-shaped clearances, each clearance spanned by a leaflet, and wherein each commissural portion of the inner skirt comprises at least one flap that is folded at least partly around a respective commissural post.