Cartilage implant devices are provided herein. The implant devices have circular, or oblong, articular ends. The articular ends have a convex upper face and a concave lower face, the convex upper face blending to the concave lower face, and the concave lower face having a curvature less than the curvature...http://www.google.de/patents/US8043375?utm_source=gb-gplus-sharePatent US8043375 - Cartilage implants
