Patent ID: 9278001
Filing Date: 2016-03-08
CPC Classification: A61B,A61F

Claim Text:
1. A medical device for implantation in a hip joint for providing a joint surface, wherein said medical device comprises an artificial caput femur surface adapted to function as a bearing surface of the hip joint when in its functional position, and a fixating part, adapted to at least partially be placed inside of a femoral bone for fixating the artificial caput femur surface to the femoral bone, wherein said medical device comprises at least first and second artificial caput femur surface parts each comprising a portion of the bearing surface, and wherein the first and second artificial caput femur surface parts are adapted to be connected to each other in situ to form said medical device, wherein said at least first and second artificial caput femur surface parts are adapted to be inserted through a hole in a pelvic bone from an opposite side from acetabulum, said hole having a diameter less than a largest diameter of said medical device, or a cross-sectional distance less than a largest cross-sectional distance of said medical device and a cross-sectional area less than a largest cross-sectional area of said medical device, when said device is in its functional position in the hip joint, wherein said at least first and second artificial caput femur surface parts are adapted to form the artificial caput femur surface after passing through said hole, when implanted, and wherein said first artificial caput femur surface part comprises at least one fixating protrusion and said second artificial caput femur surface part comprises at least one fixating recess, said at least one fixating protrusion of said first artificial caput femur surface part is adapted to engage said at least one fixating recess of said second artificial caput femur surface part to fixate the first artificial caput femur surface part to the second artificial caput femur surface part in situ, and said first and second artificial caput femur surface parts are adapted to form the entire artificial caput femur surface.