Heart valve, e.g. for therapy of chronic heart diseases like aortic valve stenosis or mitral valve regurgitation, has an iris diaphragm made from iris elements shaped like swiveling blades

摘要

A heart valve (1) has an outer ring (2) with an iris diaphragm (3) made from iris elements shaped like blades and placed in the outer ring so as to swivel. The iris elements interlink so that swiveling an iris element on a swiveling axis (6) vertical to the surface of an opening (5) causes other iris elements to swivel at the same time.