RU2001125792A - A method of manufacturing a frameless biological prosthesis of the aortic valve of the heart - Google Patents

Claims (1)

A method of manufacturing a frameless biological prosthesis of the aortic valve of the heart, including the selection of aortic xenocomplexes from the hearts of pigs, washing them in 0.9% physiological saline and preliminary preparation with subsequent processing of the aortic root and the formation of a frameless prosthesis of the aortic valve of the heart while preserving the Valsalva sinuses, sterilization and preservation of the manufactured prosthesis, characterized in that on the right coronary valve and on the anterior valve of the mitral valve in the region of the base of the left the coronary and non-coronary cusps carry out planar muscle resection with leaving sections of no more than 1.0 mm thick and 1-1.5 mm wide, and a flexible cuff is formed from pre-treated calf pericardium in the inflow of the prosthesis with the closure of the treated muscle sections and the fibrous ring and fix it is on the one hand to the inner wall of the aorta below the level of attachment of the valves with a continuous twisting suture with capture of only intima and the median part, and on the other hand, to the outer wall of the aorta with a continuous suture with capture of adventitial Foot and median layers without locking into the joint aortic intima.