Hip joint device, system and method
View Patent ↗A medical device, system, and method for treating hip joint osteoarthritis by providing a hip joint surface is provided. The hip joint comprising an acetabulum, being a part of the pelvic bone, comprising an acetabulum surface, and a caput femur, being a part of the femoral bone, comprising a caput femur surface. The 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. The first sealing member is further adapted to have a shape adapted to seal the hollow space for receiving, within the hollow space, a material for resurfacing at least one of the acetabulum surface and the caput femur surface.
1. 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.
2. The medical device according to claim 1 , further comprising a biocompatible material adapted to be injected into contact with said first sealing member, and wherein said biocompatible material is adapted to transform from a fluid state to a solid state after said material has been injected into said provisional mould, and wherein said material is adapted to have a surface tolerating wear and pressure when said material is in said solid state.
3. The medical device according to claim 1 , wherein said medical device further comprises a second sealing member;
wherein said first and second sealing members are adapted to define a sealed hollow space together with said artificial replacement for the caput femur, and the acetabulum, and
wherein said first and second sealing members are adapted to make contact with a material when said hollow space receives said material for resurfacing at least one of the acetabulum surface and the caput femur surface.
4. The medical device according to claim 1 , wherein said medical device further comprises a second sealing member;
wherein said first and second sealing members are adapted to define a sealed hollow space together with the caput femur, and said artificial replacement for the acetabulum, and
wherein said first and second sealing members are adapted to make contact with a material when said hollow space receives said material for resurfacing at least one of the acetabulum surface and the caput femur surface.
5. The medical device according to claim 1 , wherein said medical device further comprises a second sealing member;
wherein said first and second sealing members are adapted to define a sealed hollow space together with said artificial replacement for the caput femur, and said artificial replacement for the acetabulum, and
wherein said first and second sealing members are adapted to make contact with a material when said hollow space receives said material for resurfacing at least one of the acetabulum surface and the caput femur surface.
6. The medical device according to claim 1 , wherein said first sealing member comprises an opening adapted to receive a material for resurfacing at least one of the acetabulum surface and the caput femur surface.
7. The medical device according to claim 6 , further comprising a biocompatible material being adapted to transform from a fluid state to a solid state after said material has been injected into said hollow space, and wherein said material is adapted to have a surface tolerating wear and pressure when said material is in said solid state.
8. The medical device according to claim 6 , wherein said first sealing member is adapted to define a sealed hollow space together with said artificial replacement for the caput femur, and the acetabulum, and wherein said opening of said first sealing member is adapted to receive said material for resurfacing said at least one surface of the hip joint.
9. The medical device according to claim 6 , wherein said first sealing member is adapted to define a sealed hollow space together with said artificial replacement for the acetabulum, and the caput femur, and wherein said opening of said first sealing member is adapted to receive said material for resurfacing said at least one surface of the hip joint.
10. The medical device according to claim 6 , wherein said first sealing member is adapted to define a sealed hollow space together with said artificial replacement for the caput femur and said artificial replacement for the acetabulum, and wherein said opening of said first sealing member is adapted to receive said material, for creating an intermediate contacting surface between said artificial replacement for the caput femur and said artificial replacement for the acetabulum surface of the hip joint.
11. The medical device according to claim 1 , wherein said first sealing member is adapted to be introduced into the hip joint through a hole in the pelvic bone.
12. The medical device according to claim 1 , wherein said first sealing member is adapted to be introduced into the hip joint through a hole in the femoral bone.
13. The medical device according to claim 1 , wherein said first sealing 10 member is adapted to be introduced into the hip joint through a hole in the hip joint capsule.
14. The medical device according to claim 1 , wherein said first sealing member is adapted to be introduced into the hip joint through a hole, and wherein said second sealing member is adapted to seal said hole.
15. The medical device according to claim 1 , wherein said first sealing member is adapted to be inserted into the hip joint through a hole in any of: the pelvic bone, the femoral bone and the hip joint capsule.
16. The medical device according to claim 1 , wherein said first sealing member is adapted to be resorbable.
17. The medical device according to claim 1 , wherein said first sealing member is adapted to melt after having served its purpose as sealing member.
18. The medical device according to claim 1 , further comprising an artificial caput femur surface adapted to replace the surface of caput femur in a hip joint, wherein said first sealing member comprises an integrated part of said artificial caput femur surface.
19. The medical device according to claim 1 , further comprising an artificial acetabulum surface adapted to replace the acetabulum surface, wherein said first sealing member comprises an integrated part of said artificial acetabulum surface.