Patent ID: 6383227
Filing Date: 2002-05-07
Classification: A61B,A61F

Abstract:
A femoral neck endoprosthesis for an artificial hip joint having a ball joint, comprising: an adapter for accommodating the joint ball; a support ring for axially and radially guiding the adapter on a proximal side of the femur; and a support bearing for guiding the adapter on a lateral side of the femur, the adapter having a support shoulder directed toward the femur and a shaft for penetrating the femur approximately along an extended axis of the femoral neck, the support ring for being mounted only on the proximal side of the femur, said support ring having a flange support surface for being mounted on a worked bearing surface of proximal cortical substance of the femur and a hub for being mounted inside the femur, the support ring further having an axial stop for the support shoulder of the adapter and a bore for the shaft of the adapter so as to guide the adapter, the bore being laterally offset in relation to the support surface, the support bearing for being fixed only on the lateral side of the femur, substantially on the lateral cortical substance, the support bearing having a guide bore for the shaft of the adapter, which guide bore has an active axis adjustable with the axis of the adapter.