Rotationssymmetriskt benförankringselement

摘要

A rotationally symmetrical anchoring element made of biocompatible material for anchoring into bone tissue. A circumferential surface includes a lower portion adapted to be incorporated with bone tissue and an upper portion that is located outside the bone tissue following implantation. The upper portion is adapted for attachment of a spacer piece or prosthetic structure thereto. The upper portion includes an unthreaded conical portion having a diameter that increases with increasing distance away from an upper end gable surface of the element. The conical portion forms a bearing surface for cooperation with a conical surface of the spacer piece or the prosthetic structure. The conical surface matching the conical portion. An external thread provided at a top of the upper portion secures the conical surface of the spacer piece or the prosthetic structure against the conical portion.