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Medical apparatus and instruments for use in cardiac surgery; surgical apparatus and instruments; medical devices for heart valve repair or replacement, namely, stents; medical devices, namely, cardiovascular prostheses being prostheses for the heart; artificial heart valves being artificial cardiac valves; stents; annuloplasty rings being heart valve rings for therapeutic or medical purposes being medical apparatus for treating a defective heart valve; artificial vascular grafts; cardiovascular delivery devices in the nature of devices for delivering prostheses for the heart, namely, sheaths, catheters, guidewires, sleeves, conduits, loading devices and accessories all being surgical devices and instruments; medical devices involved in the field of cardiac surgery solutions in the nature of surgical devices and instruments, namely, aortic devices, namely, sutureless valve for aortic valve replacement, mechanical heart valve prostheses, mechanical prosthesis for aortic root replacement, supra-annular aortic valve; mitral devices, namely, rigid annuloplasty rings being heart valve rings for therapeutic or medical purposes being medical apparatus for treating a defective heart valve; cannulae for minimally invasive cardiac surgery; aortic valve comprised of artificial materials for implantation being artificial cardiac valves; aortic clamps for surgical use; mechanical heart valves comprised of artificial materials for implantation; mitral valves comprised of artificial materials for implantation; mitral rings and bands comprised of artificial materials for degenerative mitral valve regurgitation and myxomatous degeneration being implants consisting of artificial materials; minibands comprised of artificial materials for degenerative and functional mitral regurgitation and for tricuspid regurgitation being implants consisting of artificial materials; tricuspid bands comprised of artificial materials for tricuspid valve regurgitation being implants consisting of artificial materials; mitral and tricuspidal atrial blades retractors, being surgical retractors; vascular prostheses being cardiac valves for surgical prostheses; vascular repairing parts, namely, aortic bioprosthesis heart valves, aortic pericardial heart valves, being artificial cardiac valves.