Patent ID: 7004973
Filing Date: 2006-02-28
Classification: A61F

Abstract:
1. A profiled shaft for anchoring a hip-joint prosthesis in a femur, comprising: a shaft section having a generally rectangular cross section and having a proximal region, a distal region, a lateral side and a medial narrow side, wherein a trochanter wing is continuous with the lateral side of the shaft section in the proximal region, wherein the trochanter wing has an anterior broad side and a posterior broad side that are substantially perpendicular to the lateral side, wherein the trochanter wing has beveled edge surfaces, and wherein, in a cross-section through the trochanter wing perpendicular to a longitudinal axis of the shaft, an angle is formed between a plane of a beveled surface and a plane of the lateral side, the angle being smaller than 120° and larger than 100°; and a fixation section formed at an end of the shaft section, which serves for a fixation of a spherical joint head, wherein the medial narrow side of the shaft section in the proximal region merges with a continuously curved arch that ends in a region of the fixation section.