CALCIFICATION RESISTANT TISSUE FOR IMPLANTATION

摘要

CALCIFICATION RESISTANT TISSUE FOX IMPLANTATION Porcine valve cusp tissue and bovine pericardial tissue useful in the fabrication of prosethetic heart valves for implantation in humans, are characterized, in the case of porcine valve cusp tissue, by having an average degree of calcification of less than 1.0 .mu.g Ca++/mg tissue after 8 weeks implantation in a Sprague-Dawley rat test. In the case of bovine pericardia tissue, average calcification is less than 2.5 .mu.g after 8 weeks.