The Hydra aortic valve stent frame is made of nitinol and the leaflets are cut out of bovine pericardium. It is designed for compatibility with the native anatomy for percutaneous replacement procedures. The three tentacles (antenna) on the stent frame provide flexible anchors at the outflow which provides conformability to the shape of the aorta and unparalled coronary access. The inflow section of the frame exerts a higher but optimum radial force to ensure secure attachment to the annulus. The bio-prosthesis is made from pericardium and sutured around the stent frame in a three leaflet configuration. The leaflets are designed to function in various shape or dimensions.