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

摘要

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.

主权项

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.