Acetabular Prosthesis
AssigneeLimacorporate S.P.A.
InventorsPaolo Dalla Pria, Luca Giorgini, Michele Presacco
Life of this patent
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Abstract
Acetabular prosthesis comprising an acetabular cup, an acetabular insert, able to be stably coupled inside the acetabular cup and configured to receive an articulation head and a centering unit configured to guide and center the insertion and stable positioning of the acetabular insert in the acetabular cup. The centering unit comprises a centering hole provided in the acetabular cup and a centering pin provided on the acetabular insert and which develops along a centering axis, configured to be inserted in the centering hole. The centering pin is provided with an external lateral surface that has an undulating development along the centering axis.
Claims11
Acetabular prosthesis comprising:
- an acetabular cup;
- an acetabular insert, configured to be stably coupled inside the acetabular cup and to receive an articulation head;
- a centering unit configured to guide and center the insertion and stable positioning of the acetabular insert in the acetabular cup, said centering unit comprising a centering hole provided in the acetabular cup and a centering pin provided on the acetabular insert and which develops along a centering axis, configured to be inserted in the centering hole, wherein said centering pin is provided with an external lateral surface that has an undulating development along the centering axis with at least a concave part followed by at least a convex part, wherein the concave part is continuously connected to the convex part by a connection bend.
Acetabular insert configured to be stably coupled inside an acetabular cup of an acetabular prosthesis and to receive an articulation head, comprising a centering pin that develops along a centering axis, configured to be inserted in a centering hole of the acetabular cup to define a centering unit configured to guide and center the insertion and stable positioning of the acetabular insert in the acetabular cup, wherein said centering pin is provided with an external lateral surface that has an undulating development along the centering axis, with at least a concave part, followed by at least a convex part, wherein the concave part is continuously connected to the convex part by a connection bend.
Dependencies are inferred from the claim text.