Patent ID: 6709379
Filing Date: 2004-03-23
Classification: A61F,A61K,A61M,A61N,A61P

Abstract:
An implant adapted for contacting body tissue and body fluids of humans or animals comprising:a support including an at least partially formed covering layer, said covering layer having a plurality of cavities with separate openings of substantially uniform shape which are homogenously distributed on the surface of and opening to the surface of the covering layer, said cavities being adapted for absorbing at least one therapeutic agent, said covering layer consisting essentially of a metal oxide formed by electrolytic oxidation, said metal oxide being selected from the group consisting of aluminum oxide, magnesium oxide, tantalum oxide, iron oxide and tungsten oxide, said cavities being formed by the electrolytic oxidation forming said metal oxide, and said openings comprising an opening area wherein the average of either the largest or average diameters of said openings is up to 100 nm.