A temporary bioabsorbable-radiopaque marker for use on an implantable endoprosthesis. The bioabsorbable-radiopaque marker is adapted to be disposed on or adjacent an implantable endoprosthesis in a body lumen for a predetermined amount of time until the bioabsorbable and radiopaque materials are absorbed...http://www.google.ca/patents/US7553325?utm_source=gb-gplus-sharePatent US7553325 - Bioabsorbable marker having radiopaque constituents
