| abstract |
The stent ( 1 ) has surface sculpturing, preferably on its outer surface ( 2 ) only, constituted, for example, by microspheres ( 3 ), having the function of increasing the actual geometric surface area of the stent, of creating undercuts and roughness to encourage the application of coatings of active or activatable agents, as well as of improving the attachment of the stent ( 1 ) to the blood vessel wall. |