Patent ID: 8945209
Filing Date: 2015-02-03
Classification: A61F,Y10T

Abstract:
1. An implantable prosthetic valve comprising: a valve component comprising a tubular frame that is radially collapsible to a collapsed state for introduction into the body on a delivery catheter and radially expandable to an expanded state for implanting the valve at a desired location in the body, the frame having an inflow end and an outflow end, and the frame having a plurality of connected axial and circumferential struts defining a plurality of discrete cells within each of which is formed an opening; a fabric layer including a fabric skirt positioned adjacent the frame and configured to prevent blood from flowing through the openings in the frame that are covered by the skirt; a non-absorbable encapsulating material that encapsulates the fabric layer and the valve component so as to secure the fabric layer to the valve component, the encapsulating material having a porous microstructure that promotes ingrowth of surrounding tissue to assist in securing the prosthetic valve in a body lumen, wherein portions of the encapsulating material lie on opposite sides of the fabric layer and are fused together from heating, wherein the encapsulating material comprises a first tubular layer positioned on the inside of the tubular frame and the fabric layer and a second tubular layer positioned on the outside of the frame and the fabric layer, the second tubular layer and the first tubular layer having respective portions completely covering the fabric layer, the second tubular layer and the first tubular layer defining the portions of the encapsulating material that are fused together to form a covering that encapsulates the fabric layer and the frame, and wherein the skirt is attached to the frame by the covering and without sutures; and a valvular structure mounted to the valve component within the tubular frame and configured to permit blood flow in a first direction through the valve and block blood flow in a second direction, opposite the first direction.