Prosthetic element and relative method to make it
AssigneeLima-Lto SPA
InventorsMichele Pressacco, Gabriele Lualdi, Paolo Dalla Pria
Life of this patent
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Abstract
A prosthetic element including a cap made of metal material. At least part of the cap is a lattice that makes a plurality of open and intercommunicating cavities.
Claims33
A prosthetic element comprising a cap made of metal material, having inside an acetabular seating, said cap having an internal wall that lines the seating and the external part consisting of a lattice with cells making a plurality of cavities disposed three-dimensionally, open and intercommunicating, connected with each other, said lattice being solid with the part facing toward the outside of the internal wall,
- at least part of the lattice is formed, without a break in continuity, by one or more models of a plurality of geometric meshes repeated in space over all or part of the body of the prosthetic element, having a cellular geometry with elementary cells open and contiguous, to define a plurality of polygons with a spatial development delimiting the cavities, so the lattice is able to promote osteo-integration.
A method to make a prosthetic element comprising a cap having inside an acetabular seating (Ha), comprising:
- making successive, continuous, parallel, adjacent and solid layers to constitute an internal wall of the cap that lines the seating (Ha) and in physical continuity with every single layer at least part of the external part of the cap,
- wherein the layers that make up the external part are coordinated in relation to a pre-determined final figure,
- wherein said plurality of layers is obtained in a discontinuous form to determine a lattice with cells achieving a plurality of cavities disposed three-dimensionally, open and intercommunicating, connected with each other, the lattice being made in physical continuity with the part facing toward the outside of the internal wall.
Dependencies are inferred from the claim text.