RESUMO
TRICOMED, Medical Articles has been conducting its research on textile vascular prostheses for over 35 years. In the seventies, a collagen coated graft was designed and fabricated which, however, after having been positively evaluated ceased to be used by clinics. In the eighties, double velour DALLONR prostheses was introduced which are now marketed by our company. The DALLONR graft has a low mass, developed surface area and moderate porosity. In the eighties, foreign manufacturers launched various types of coated grafts. Responding to that popular market trend we have resumed our early research on the preclotted prostheses and started studies on the use of albumin and chitosan as coating agents. The grafts impregnated with albumin have achieved satisfactory results of biological and experimental testing. These results are confirmed by current clinical examination.
