Prosthetic heart valve

A method comprising:

• inserting a distal end of a delivery device into a vasculature of a patient, wherein a prosthetic valve is releasably coupled to the distal end of the delivery device, wherein the prosthetic valve comprises an annular frame and a valvular structure mounted within the annular frame, wherein the valvular structure comprises a plurality of leaflets defining a plurality of commissures coupled to the annular frame, and wherein each leaflet comprises a free edge that is offset in a downstream direction from the commissures by side edges that are not attached to the annular frame;
• advancing the prosthetic valve at the distal end of the delivery device to a selected implantation site;
• actuating a handle of the delivery device to release the prosthetic valve from the distal end of the delivery device;
• and
• withdrawing the delivery device from the patient with the prosthetic valve implanted at the selected implantation site.