A prosthetic valve comprising a conical shaped valve member comprising an extracellular matrix (ECM) composition, the conical shaped valve member comprising a plurality of elongated ribbon members that are positioned circumferentially about the periphery of the valve, wherein the edge regions of the ribbon members are positioned proximate each other and form a plurality of contiguous ribbon edge regions, which are configured to open and close with expansion and contraction of the elongated ribbon members and, hence, valve member； particularly, expansion induced by positive fluid flow through the valve member and contraction induced by negative fluid flow through the valve member.
