Patent ID: 8308797
Filing Date: 2012-11-13
Classification: A61B,A61F,A61L,Y10S,Y10T

Abstract:
1. A percutaneously implantable replacement heart valve device for deployment in a patient, comprising: a collapsible and expandable stent member including an inner channel; and a single sheet of biocompatible pericardium tissue attached to the stent member by a plurality of sutures, the single sheet of biocompatible pericardium tissue partitioned by a transverse linear crease to form an outer cuff layer and an inner leaflet layer, the transverse linear crease oriented substantially parallel to a first edge and a second edge of the single sheet of biocompatible pericardium tissue, wherein the first edge includes a free edge of the inner leaflet layer, wherein at least portions of the inner leaflet layer reside substantially radially adjacent and in contact with the outer cuff layer within the stent member to form a contiguous double-layer folded construct, the inner leaflet layer partitioned by an additional linear crease oriented substantially perpendicular to the transverse linear crease to form two individual valve leaflets wherein the two individual valve leaflets are bordered in part by the additional linear crease, the additional linear crease located from the transverse linear crease to the free edge of the inner leaflet layer, wherein the inner leaflet layer resides in contact with the outer cuff layer along the additional linear crease, wherein a first lateral edge of the single sheet of biocompatible pericardium tissue adjoins a second lateral edge of the single sheet of biocompatible pericardium tissue, and wherein after deployment in the patient, the contiguous double-layer folded construct with the inner leaflet layer located radially within the outer cuff layer resides as a single element entirely within the inner channel of the stent member, and wherein only the inner leaflet layer resides radially inward from the outer cuff layer.