Abstract
Antithrombogenicity of some graft copolymers was examined. For graft copolymerization, Teflon or Dacron vascular graft was irradiated in the monomer solution. The canine s;iperior or inf rarenal inferior vena cava was replaced with thQ irradiated graft.
Internal surface 3f the graft was examined by autopsy or venography from one day to 26 months following replacement.
Excellent thromboresistent property was recognized in Teflon-methyl-methacrylate and Dacron-2-hydroxyethy-lmethacrylate.