Prosthetic heart valves, support structures and systems and methods for implanting the same

摘要

A prosthetic valve device (32), comprising: a valve support structure comprising a first layer (602) and a second layer (604). The valve support structure may comprise a hinge (608), the hinge corresponding to at least one of a gap (609) in at least one of the first, second and intermediate layers or a relatively thin portion of at least one of the first second and intermediate layers.