Implant system having at least three support elements
An implant system that includes a concave spherical-segment-shaped socket part and a corresponding convex spherical-segment-shaped joint part is provided. The joint part rests in the socket part, wherein at least three support elements that describe a spherical triangle or a spherical polygon are arranged on the surface of the joint part or on the surface of the socket part.
1. An implant system comprising:
a concave spherical-segment-shaped socket part; and
a corresponding convex spherical-segment-shaped joint part, wherein the joint part rests in the socket part, a convex surface of the joint part comprising a plurality of recesses, wherein a support element extends from each of the recesses such that the support elements describe a spherical triangle, at least two of the recesses having a common boundary, the support elements being arranged spherically at 120° about a central point of the spherical-segment-shaped joint part, wherein the joint part comprises titanium or PEEK and the support elements comprise ceramic.
2. The implant system as claimed in claim 1 , wherein the support elements are designed as planar elevations that engage a concave surface of the socket part to space the convex surface apart from the concave surface.
3. The implant system as claimed in claim 1 , wherein the joint part comprises titanium and the recesses each extend into the titanium.
4. The implant system as claimed in claim 1 , wherein the joint part comprises PEEK and the recesses each extend into the PEEK.
5. The implant system as claimed in claim 1 , wherein the support elements are cylindrical.
6. The implant system as claimed in claim 1 , wherein the support elements are less rough than the surface of the joint part.
7. The implant system as claimed in claim 1 , wherein the support elements are surface-treated.
8. The implant system as claimed in claim 1 , wherein the support elements are polished.
9. The implant system as claimed in claim 1 , wherein the support elements are coated with another material.
10. The implant system as claimed in claim 1 , wherein sides of the implant system configured to be directed toward bone are coated.
11. The implant system as claimed in claim 10 , wherein the coating is titanium or ceramic.
12. The implant system as claimed in claim 1 , wherein the support elements are each centrally positioned in a respective one of the recesses.
13. The implant system as claimed in claim 1 , wherein the recesses each have a maximum diameter that is greater than that of each of the support elements such that each of the support elements is spaced apart from edges of a respective one of the recesses.
14. The use of an implant system as claimed in claim 1 in connection with prostheses in the spinal column area.
15. The use of an implant system as claimed in claim 1 in connection with a hip joint.
16. An implant system comprising:
a first plate comprising a planar first surface and a concave spherical-segment-shaped socket part opposite the first surface;
and a second plate comprising a planar second surface and a convex spherical-segment-shaped joint part opposite the second surface, wherein the joint part rests in the socket part such that a concave surface of the socket part faces a convex surface of the joint part, the convex surface comprising three recesses that intersect at a central point of the joint part, wherein a support element extends from each of the recesses such that the support elements describe a spherical triangle, the support elements being arranged spherically at 120° about the central point,
wherein the joint part comprises titanium, the support elements comprise a ceramic material and the recesses extend into the titanium.
17. The implant system as claimed in claim 16 , wherein planar side surfaces of the second plate are each perpendicular to an adjacent one of the side surfaces of the second plate.
18. An implant system comprising:
a concave spherical-segment-shaped socket part; and
a corresponding convex spherical-segment-shaped joint part that rests in the socket part such that a concave surface of the socket part faces a convex surface of the joint part, the convex surface comprising a plurality of concave recesses that abut one another, each of the recesses comprising a ceramic support element extending therefrom that engages the concave surface to space the convex surface apart from the concave surface,
wherein the support elements describe a spherical triangle extending from the joint part, the support elements being arranged spherically at 120° about a central point of the joint part.
19. The implant system as claimed in claim 18 , wherein the plurality of recesses comprises three recesses, each of the recesses including a single one of the support elements extending therefrom.
20. The implant system as claimed in claim 18 , wherein the support elements each have a cylindrical configuration such that a planar end surface of each of the support elements engages the concave surface.