Cups of artificial cardiac valve and method for manufacturing thereof
View Patent ↗The invention relates to medical technology and could be used in manufacturing artificial cardiac valves having one or more cusps made of a polymer composite. The method for manufacturing a cusp of an artificial cardiac valve, includes the steps of: manufacturing a casting mold, and molding a cusp from a polymer composite comprising 78 to 92% by weight of polyamide and 8 to 22% by weight of radiographic contrast medium dispersed therein. The polymer composite can comprise additionally fine acetylene black in amount of 1 to 2% by weight. The preferred radiographic contrast medium is barium sulphate. In one embodiment of the method, the casting mold is manufactured for the molding size 1 to 5% less than necessary, and the cusp is placed after molding into an anticoagulant solution and matured therein until expanding by 1 to 5%.
1. A method for manufacturing a cusp of an artificial cardiac valve, including the steps of:
manufacturing a casting mold, and
molding a cusp from a polymer composite comprising 78 to 92% by weight of polyamide and 8 to 22% by weight of radiographic contrast medium dispersed therein;
wherein the polymer composite additionally comprises fine acetylene black in the amount of 1 to 2% by weight.
2. A method for manufacturing a cusp of an artificial cardiac valve, including the steps of:
manufacturing a casting mold, and
molding a cusp from a polymer composite comprising 78 to 92% by weight of polyamide and 8 to 22% by weight of radiographic contrast medium dispersed therein;
wherein the casting mold is manufactured for the molding size of from 1 to 5% less than necessary, and, after the step of molding, the cusp is placed into an anticoagulant solution and matured therein until expanding by from 1 to 5%.
3. A cusp of an artificial cardiac valve made of a polymer material, characterized in that the cusp is made from a polymer composite comprising from 78 to 92% by weight of polyamide and from 8 to 22% by weight of radiographic contrast medium dispersed therein, wherein the polymer composite additionally comprises fine acetylene black in the amount of 1 to 2% by weight.