ENDOPROTHESE POUR CANAL ANOTOMIQUE

摘要

The endoprosthesis is intended to be implanted in a region of the canal that is experiencing impairment and of which the exterior surface of the wall bears projecting studs intended to collaborate with the wall of the anatomical canal in order to hold the endoprosthesis in position. One of the projecting studs is hollow and acts as a reservoir able to contain a product that is active against the impairment and to allow the active product to act against the impairment. The active product is of the radioactive type. Each hollow stud containing the radioactive product is plugged by a sealed stopper and forms a reservoir sealed against the product, only the radioactive radiation of which passes toward the impairment. Each hollow stud containing the radioactive product is plugged by a stopper exhibiting permeability to the radioactive product and allows to permeate in a controlled manner toward the impairment. The active product can be chemical or pharmaceutical type such that each hollow stud containing the active product is plugged by a stopper having controlled permeability to the active product and allowing the product to permeate in a controlled manner toward the impairment.