Medical and surgical apparatus and instruments, namely, implantable artificial cardiac valves; Medical and surgical implants made of artificial materials for use in cardiovascular procedures; Medical device consisting of a stent delivery system for artificial cardiac valves; Medical apparatus and instruments for use in cardiovascular procedures; Medical apparatus and instruments for treating cardiovascular disease; Cardiac valves for surgical prostheses; Prostheses for cardiovascular systems, namely, for the heart and heart valves; Artificial cardiac valves; Artificial cardiac valves for implantation as part of the cardiovascular system; Subcutaneous valves comprised of artificial materials for implantation as part of the cardiovascular system; Valve implants consisting of artificial materials for implementation as part of the cardiovascular system; Medical devices for use in treating cardiac disease; Replacement tissue valves comprising artificial and natural, non-living materials for the human heart