Patent ID: 6149689
Filing Date: 2000-11-21
Classification: A61F,A61L

Abstract:
An implant as a bone replacement comprising a base structure (1) having an open-meshed, three-dimensional surface structure which at least partially covers the base structure, the open-meshed, three-dimensional surface structure being formed by at least one layer of particles (5) which is connected to the base structure (1), the particles (5) comprising four to eight studs (3) extending radially outwardly from each other, at least some of the particles (5) in the at least one layer having at least three of the studs (3) directly connected to the base structure (1) and at least some of the particles having studs (3) having free ends (7) projecting outwardly from the base structure (1), wherein at least the free ends (7) have enlargements which form undercuts (8), and wherein the enlargements on the free ends (7) together form an outer, bone-contacting surface of the at least one layer which is outwardly rounded off to allow a revision instrument to be guided over the outer surface without hooking into the outer surface.