CPC A61F 2/28 (2013.01) [A61B 17/72 (2013.01); A61F 2/30771 (2013.01); A61F 2002/3021 (2013.01); A61F 2002/3093 (2013.01); A61F 2002/30112 (2013.01); A61F 2002/30217 (2013.01); A61F 2002/30784 (2013.01); A61F 2002/30985 (2013.01); A61F 2310/00796 (2013.01)] | 4 Claims |
1. A device for facilitating the formation of new bone tissue, the device comprising: a body that defines an upper portion and a lower portion, said lower portion having a substantially frustum shape, said upper portion having a substantially cylindrical shape, said lower portion being adapted to be inserted into a medullary canal of a bone, wherein said body is an internally hollow body which has a top opening and a bottom opening, said device being provided by an additive powder technology, wherein said lower portion and said upper portion of the body have a porous outer surface configured to facilitate osseointegration, wherein said upper portion is internally contoured in steps toward an axis of the body, so as to define, from the upper portion toward the lower portion, a first step which connects a first inner upper portion to a second inner upper portion, by way of an inner curved portion, said first step defined by the inner curved portion protruding inside the hollow body with a convex portion, and a second step which connects the second inner upper portion to an inner surface of the lower portion, said second step being also defined by an inner curved portion protruding inside the hollow body with a convex portion, and wherein said upper portion is blended with said lower portion with a curved concave segment.
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