Claims
- 1. A modular connection for connecting together a plurality of separate elements so as to form a prosthetic femoral stem component, said modular connection comprising, in combination, a taper junction and an engaged-fit junction.
- 2. A modular connection according to claim 1 wherein said taper junction is formed by the interaction of a first taper with a second taper.
- 3. A modular connection according to claim 2 wherein said first taper is formed on the shaft of a neck element, and said second taper is formed along a portion of a sidewall defining an aperture extending through a body element.
- 4. A modular connection according to claim 1 wherein said engaged-fit junction is formed by the interaction of a first concentric wall with a second concentric wall.
- 5. A modular connection according to claim 4 wherein said first concentric wall is formed on a shaft of a neck element, and said second concentric wall is formed along a portion of the sidewall defining an aperture extending through a body element.
- 6. A modular connection according to claim 1 wherein:
said taper junction is formed by the interaction of a first taper with a second taper, with said first taper being formed on the shaft of a neck element, and said second taper being formed along a portion of a sidewall defining an aperture extending through a body element; and said engaged-fit junction is formed by the interaction of a first concentric wall with a second concentric wall, with said first concentric wall being formed on the shaft of the neck element, and said second concentric wall being formed along a portion of the sidewall defining the aperture extending through the body element.
- 7. A modular connection according to claim 6 wherein said first concentric wall is disposed on the shaft of the neck element coaxial with, and distal to, said first taper.
- 8. A modular connection according to claim 7 wherein said second concentric wall is disposed on the body element coaxial with, and distal to, said second taper.
- 9. A modular connection according to claim 4 wherein said first concentric wall is located internally of said second concentric wall.
- 10. A modular connection according to claim 9 wherein said first concentric wall is deformed so as to be pressure locked against said second concentric wall.
- 11. A modular connection according to claim 10 wherein said first concentric wall is radially expanded so as to be pressure locked against said second concentric wall.
- 12. A modular connection according to claim 11 wherein said first concentric wall is formed on a shaft of a neck element, and said second concentric wall is formed along a portion of the sidewall defining an aperture extending through a body element, and further wherein said first concentric wall is radially expanded by insertion of a stem element into a recess formed in the neck element.
- 13. A prosthetic femoral stem component comprising a body element, a neck element and a stem element, with the body element, neck element and stem element being secured to one another with a modular connection, wherein said modular connection comprises, in combination, a taper junction and an engaged-fit junction.
- 14. A prosthetic femoral stem component according to claim 13 wherein said taper junction is formed by the interaction of a first taper with a second taper.
- 15. A prosthetic femoral stem component according to claim 14 wherein said first taper is formed on the shaft of said neck element, and said second taper is formed along a portion of a sidewall defining an aperture extending through said body element.
- 16. A prosthetic femoral stem component according to claim 13 wherein said engaged-fit junction is formed by the interaction of a first concentric wall with a second concentric wall.
- 17. A prosthetic femoral stem component according to claim 16 wherein said first concentric wall is formed on a shaft of said neck element, and said second concentric wall is formed along a portion of the sidewall defining an aperture extending through said body element.
- 18. A prosthetic femoral stem component according to claim 13 wherein:
said taper junction is formed by the interaction of a first taper with a second taper, with said first taper being formed on the shaft of said neck element, and said second taper being formed along a portion of a sidewall defining an aperture extending through said body element; and said engaged-fit junction is formed by the interaction of a first concentric wall with a second concentric wall, with said first concentric wall being formed on the shaft of said neck element, and said second concentric wall being formed along a portion of the sidewall defining the aperture extending through said body element.
- 19. A prosthetic femoral stem component according to claim 18 wherein said first concentric wall is disposed on the shaft of the neck element coaxial with, and distal to, said first taper.
- 20. A prosthetic femoral stem component according to claim 19 wherein said second concentric wall is disposed on the body element coaxial with, and distal to, said second taper.
- 21. A prosthetic femoral stem component according to claim 16 wherein said first concentric wall is located internally of said second concentric wall.
- 22. A prosthetic femoral stem component according to claim 21 wherein said first concentric wall is deformed so as to be pressure locked against said second concentric wall.
- 23. A prosthetic femoral stem component according to claim 22 wherein said first concentric wall is radially expanded so as to be pressure locked against said second concentric wall.
- 24. A prosthetic femoral stem component according to claim 23 wherein said first concentric wall is formed on a shaft of said neck element, and said second concentric wall is formed along a portion of the sidewall defining an aperture extending through said body element, and further wherein said first concentric wall is radially expanded by insertion of said stem element into a recess formed in said neck element.
- 25. A prosthetic total hip joint comprising a prosthetic femoral stem component and a prosthetic acetabular cup component, wherein said femoral stem component comprises a body element, a neck element and a stem element, with the body element, neck element and stem element being secured to one another with a modular connection, wherein said modular connection comprises, in combination, a taper junction and an engaged-fit junction.
- 26. A method for restoring a hip joint, wherein the method comprises the steps of:
resecting the head of the femur and preparing the interior of the femur to receive a prosthetic femoral stem component; assembling a prosthetic femoral stem component comprising a body element, a neck element and a stem element by selecting appropriately sized elements and securing them together with a modular connection, wherein the modular connection comprises, in combination, a taper junction and an engaged-fit junction; and seating the prosthetic femoral stem component in the femur.
REFERENCE TO PENDING PRIOR APPLICATIONS
[0001] This application claims benefit of:
[0002] (1) pending prior U.S. Provisional Patent Application Ser. No. 60/219,955, filed Jul. 20, 2000 by Alfred S. Despres III et al. for MODULAR ORTHOPEDIC CONNECTION (Attorney's Docket No. HAYES-1 PROV); and
[0003] (2) pending prior U.S. Provisional Patent Application Ser. No. 60/219,963, filed Jul. 20, 2000 by Alfred S. Despres III et al. for FORCE COUPLE CONNECTION (Attorney's Docket No. HAYES-2 PROV).
[0004] The two above-identified patent applications are hereby incorporated herein by reference.
Provisional Applications (2)
|
Number |
Date |
Country |
|
60219955 |
Jul 2000 |
US |
|
60219963 |
Jul 2000 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
09909923 |
Jul 2001 |
US |
Child |
10764831 |
Jan 2004 |
US |