Patent ID: 9180014
Filing Date: 2015-11-10
Classification: A61B,A61F,A61L

Abstract:
1. A medical device for implantation in a hip joint of a human patient, the natural hip joint having a ball shaped caput femur as the proximal part of the femoral bone with a convex hip joint surface towards a central location of the hip joint between the caput femur and the acetabulum and a bowl shaped acetabulum as part of the pelvic bone with a concave hip joint surface, the medical device comprising; an artificial caput femur, comprising a convex surface, wherein said artificial convex caput femur is adapted to, when implanted, be immovably fixated to the pelvic bone of the human patient, and be in movable connection with an artificial acetabulum surface fixated to the femoral bone of the patient, thereby forming a ball and socket joint, wherein the medical device further comprises a fixation element comprising a convex fixation surface adapted to be in contact with the surface of the acetabulum and adapted to fixate the artificial convex caput femur to at least the acetabulum of the pelvic bone, wherein the medical device further comprises an artificial acetabulum comprising a concave surface towards the centre of rotation of the hip joint, adapted to when implanted, be fixated to the femoral bone of the human patient, and be in movable connection with the artificial caput femur surface fixated to the pelvic bone of the patient, and wherein the medical device further comprises a second fixation element comprising a second fixation surface adapted to be in contact with the caput femur or collum femur, wherein said second fixation element is adapted to fixate the artificial concave acetabulum to the femoral bone.