MEDICAL ARTICLES FOR LONG TERM IMPLANTATION

摘要

According to an aspect of the present invention, long term medical articles are provided which include the following: first and second body contacting (e.g., tissue and/or body-fluid contacting) porous polymeric layers (120, 130); a polymeric barrier layer (120) disposed between the first and second porous polymer layers; and a reinforcement element (150). According to another aspect of the present invention, tubular medical articles for long term implantation are provided, which comprise: a reinforcement element; a blood contacting porous polymeric layer having a surface energy ranging between 0,2 and 0,3mN/cm (20 and 30 dynes/cm) disposed over an inner surface of the reinforcement element; and an additional porous polymeric layer formed over an outer surface of the reinforcement element.