Claims
- 1. A dual-radius glenoid component of a shoulder joint for use in total shoulder arthroplasty, said glenoid component comprising:
an articulating surface including a first area and a second area, the first area being defined by a first curvature having a first radius of curvature and the second area being defined by a second curvature having a second radius of curvature, the first radius of curvature being greater than the second radius of curvature, the second area at least partially surrounding the first area.
- 2. The dual-radius glenoid component in accordance with claim 1, wherein the first area is substantially centered on the articulating surface and the second area is peripheral to and completely surrounds the first area.
- 3. The dual-radius glenoid component in accordance with claim 1, wherein the shoulder joint further includes a humeral component having a third radius of curvature, the second radius of curvature being substantially equal to the third radius of curvature.
- 4. The dual-radius glenoid component in accordance with claim 1, wherein the first radius of curvature is between approximately 1.1 inches and approximately 1.5 inches and the second radius of curvature is approximately 1.0 inch.
- 5. The dual-radius glenoid component in accordance with claim 4, wherein the first radius of curvature is approximately 1.5 inches and the second radius of curvature is approximately 1.0 inch.
- 6. The dual-radius glenoid component in accordance with claim 1, wherein the second curvature is tangent to the periphery of the first curvature.
- 7. A shoulder joint prosthesis for use in total shoulder arthroplasty comprising:
a humeral component including a head defined by a humeral component radius of curvature; and a dual-radius glenoid component having an articulating surface that engages with the head of the humeral component, the articulating surface including a first area and a second area, the first area being defined by a first curvature having a first radius of curvature and the second area being defined by a second curvature having a second radius of curvature, the first radius of curvature being greater than the second radius of curvature, the second area at least partially surrounds the first area.
- 8. The shoulder joint prosthesis in accordance with claim 7, wherein the first area is substantially centered on the articulating surface and the second area is peripheral to and completely surrounds the first area.
- 9. The shoulder joint prosthesis in accordance with claim 7, wherein the second radius of curvature is substantially equal to the radius of curvature of the humeral component.
- 10. The shoulder joint prosthesis in accordance with claim 7, wherein the first radius of curvature is between approximately 1.1 inches and approximately 1.5 inches, and the second radius of curvature is approximately 1.0 inch.
- 11. The shoulder joint prosthesis in accordance with claim 10, wherein the first radius of curvature is approximately 1.5 inches and the second radius of curvature is approximately 1.0 inch.
- 12. The shoulder joint prosthesis in accordance with claim 6, wherein the second curvature is tangent to the periphery of the first curvature.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional Application No. 60/269,821, filed on Feb. 21, 2001, which is herein incorporated by reference in its entirety.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60269821 |
Feb 2001 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/US02/05073 |
Feb 2002 |
US |
Child |
10682836 |
Oct 2003 |
US |