Patent ID: 8043375
Filing Date: 2011-10-25
Classification: A61F,Y10S

Abstract:
1. A cartilage implant comprising: an articular end for repair of articular cartilage defects having a circular perimeter, a convex upper face, and a concave lower face, the convex upper face having a spherical radius and the concave lower face having a spherical radius; and a stem extending from the concave lower face away from the convex upper face along a vertical axis, the stem having a plurality of circular perimeters along the vertical axis, and a maximum stem circular perimeter at the intersection of the stem and the concave lower face, the maximum stem circular perimeter less than the articular end circular perimeter, wherein: wherein the stem blends into the concave lower face, and wherein the articular end and the stem each consist essentially of: a graphite core and a pyrocarbon coating, the pyrocarbon coating having an average thickness ranging from about 100 to about 1000 microns.