Tetradecahedron-based gradient porous bone induction structure

Abstract

The invention discloses a tetradecahedron-based gradient porous bone induction structure. The etradecahedron-based gradient porous bone induction structure comprises a first-stage unit and a second-stage unit, the first-stage unit comprises tetradecahedron brackets and an octahedron bracket, the octahedron support is composed of adjacent enclosing surfaces on the eight tetradecahedron brackets; the structure of the second-stage unit is the same as that of the first-stage unit, the pantograph ratio of the second-stage unit to the first-stage unit is k, k is less than 1, the outermost connectingsurface of the second-stage unit coincides with the outermost connecting surface of the first-stage unit, and each vertex of the outermost connecting surface of the second-stage unit correspondinglyfalls on each connecting rod on the outermost connecting surface of the first-stage unit. According to the gradient porous bone induction structure n, the first-stage unit forms a sphere-like bracketstructure, the gradient porous bone induction structure has the advantages of being beneficial to bone tissue ingrowth and bone tissue growth, the first-stage unit and the second-stage unit do not have broken branches in the transfer process, and the mechanical property is relatively good.

Description

technical field [0001] The invention relates to the technical field of porous materials, in particular to a tetradecahedron-based gradient porous osteoinductive structure. Background technique [0002] At present, the industry mainly adopts relatively mainstream uniform structures such as tetrahedron, hexahedron, octahedron, and dodecahedron for the internal space structure of porous materials. The overall structure has stable mechanical properties, simple design methods, and easy molding and post-processing processes. [0003] Through the study of this type of pore structure with uniform structure, the academic community has clarified that the pore structure can achieve certain biological performance on the basis of ensuring connectivity within a certain range, and within this range, the larger the pore size, the better the pore structure. It is beneficial to the ingrowth of tissue, and the smaller the pore size is more conducive to the early formation of bone tissue, this ...

AI Technical Summary

Problems solved by technology

However, due to the interweaving between the lattices of the spherical structure, there are a large number of broken branches at the junction of the gradient pore structure, which affects the mechanical properties of the material structure. Poorly not widely recognized

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