Patent ID: 8328555
Filing Date: 2012-12-11
Classification: A61B,A61C

Abstract:
1. An implant for anchoring a tightly fitting prosthesis, comprising: an implant body having external threads and being configured to be screwed into bone using an insertion tool, the body defining an axial direction and having said first end having an internal open ended axial bore, the implant being tapered such that the apex end is smaller in diameter than the first end, wherein the taper is not greater than 2°, wherein the implant body is provided with a plurality of incremental cutting faces and a plurality of thread cutting members separate from the incremental cutting faces, wherein the incremental cutting faces each comprise an axially extending groove in the external threads defining a substantially linear cutting groove in the threads, wherein the thread cutting members each comprise an annular undercut region in the apex end of the implant body, the annular undercut region providing a relief volume and being defined by a cutting edge and a trailing edge at either side of a recessed wall, wherein raised regions are formed between the cutting edge of one annular undercut region and the trailing edge of an adjacent annular undercut region, and wherein the incremental cutting faces and the thread cutting members overlap one another in the axial direction of the implant body such that an apex portion of each linear cutting groove is positioned within a raised region.