The invention relates to implantable medical devices, particularly, to porous structures for such devices. In one aspect, the invention provides a porous metal scaffold comprising a porous metal network having pores defined by metal webs, the metal webs covered with at least one layer of metal particles...http://www.google.es/patents/US7740795?utm_source=gb-gplus-sharePatente US7740795 - Porous metallic scaffold for tissue ingrowth
