Patent ID: 8911503

Claim:
A medical device for treating hip joint osteoarthritis by assisting in the injection of an artificial hip joint surface onto the natural hip joint surface or a surgically modified natural hip joint surface, wherein said medical device comprises a first sealing member adapted to be placed in the hip joint for creating a hollow space together with the acetabulum, or an artificial replacement therefor, and the caput femur, or an artificial replacement therefor, and a separate second sealing member adapted to seal a hole in bone, wherein said first sealing member has a substantially ring shaped body adapted to encircle said hollow space such that said hollow space is confined by the surfaces of the acetabulum, or an artificial replacement therefor, and the surface of the caput femur, or an artificial replacement therefor, adapted for receiving, within said hollow space, a material for resurfacing at least one of the acetabulum and the caput femur.