| 摘要 |
<p>The technical field of the invention is the production of surgical equipment implantable in the human body. The invention concerns an acetabular prosthesis (1) comprising a hollow hemispherical artificial acetabular cup (2) comprising expansion slots distributed over its periphery, and provided with teeth (11n, = 1-3) on the outer surface, a threaded intermediate element (3) and a plastic insert (4). The invention is characterised in that the intermediate element (3) is a hollow core with an outer hemispherical surface capable of being urged in contact against at least an internal meridian generatrix of each segment defined between said slots; the inside part close to the orifice of the acetabular cup (2) comprises a thread wherein is screwed said intermediate core (3); the internal diameter of said acetabular cup (2) orifice of said acetabular cup (2) in reception position before said intermediate element (3) is screwed, is smaller than the external diameter of said intermediate element (3).</p> |
