Claims
- 1. In a prosthetic hip joint, the improvement comprising:
a preformed acetabular component comprising:
(1) a socket adapted for attachment to an acetabulum; (2) a ball with a first attachment member, said ball rotatably positioned within said socket and said first attachment member facing outward away from said socket; and (3) a flexible joint capsule attached to said ball adjacent said first attachment member and to said socket, said capsule preventing debris from escaping from a joint between said ball and socket and preventing body debris from entering said joint.
- 2. The joint of claim 1 further comprising a femoral component having a stem for attachment to a femur, and a second attachment member that mates with said first attachment member wherein said preformed acetabular component is attached to said femoral component by mating said first and second attachment members after the acetabular component has been affixed to the acetabulum and said femoral component has been affixed to the femur.
- 3. The joint of claim 1 wherein said socket comprises an inner cup and an outer cup and said capsule is affixed to said outer cup.
- 4. The joint of claim 1 wherein said socket comprises an inner cup and an outer cup and said capsule is affixed to said inner cup.
- 5. The joint of claim 2 wherein said first attachment member is a cavity in said ball and said second attachment member is a femoral neck which fits into said cavity.
- 6. The joint of claim 2 wherein said first attachment member is a neck with a cavity therein, and said second attachment member is a femoral neck which mates with said cavity.
- 7. The joint of claim 2 wherein said first attachment member is a neck and said second attachment member is a face that affixes directly to said neck.
- 8. The joint of claim 2 wherein said first attachment member is a neck stem and said second attachment member is a cavity which mates with said neck stem.
- 9. The joint of claim 1 wherein said first attachment member is a stem which attaches to a femur bone.
- 10. The joint of claim 1 further comprising a fluid held in by said capsule in a joint cavity.
- 11. The joint of claim 1 further comprising a tube positioned in said capsule.
- 12. The joint of claim 10 wherein a monomer is contained in said fluid and a catalyst is embedded in said socket.
- 13. The joint of claim 10 wherein a catalyst is contained in said fluid and a monomer is embedded in said socket.
- 14. The joint of claim 1 further comprising a sensor positioned in said capsule.
- 15. The joint of claim 8 wherein a shock absorbing material is contained within said cavity between said cavity and said neck stem.
- 16. The joint of claim 1 further comprising strips of elastic material on the outside of said capsule.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This Application is a Continuation-in-part of U.S. patent application Ser. No. 10/166,490 filed Jun. 10, 2002.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
10166490 |
Jun 2002 |
US |
Child |
10411773 |
Apr 2003 |
US |