Linearly arranged artificial porous bone structure

Abstract

The invention discloses a linearly arranged artificial porous bone structure, comprising a shell and a porous body in the shell, wherein the porous body is formed by linear connection and arrangement of multiple grid cells, each grid cell is of a hollow truncated octahedron, the thickness of a frame of each grid cell is 200 to 300mu m, the aperture of each grid cell is 500 to 1250mu m, and the porosity of the porous body is 75 percent to 80 percent. According to the linearly arranged artificial porous bone structure, the porous body prepared by utilizing 3D (three dimensional) selective laser melting integral molding is high in porosity and high in strength, a highly interconnected spatial through-hole structure can provide extensive bone ingrowth, the high friction coefficient can provide good initial stability of a transplant, and a considerable clinical medical prospect is achieved.

Description

Technical field [0001] The invention relates to the technical field of artificial bones, in particular to a linearly arranged artificial porous bone structure. Background technique [0002] Due to various adverse reasons, more and more people are plagued by fractures, bone defects and even amputations. In addition, the rapid development of the field of biomedical devices has resulted in the emergence of technologies for repairing prosthetic bone tissue, and it has attracted more and more attention. At present, some related bone repair technologies have been applied in clinical medicine or medical experiments. In 1885, Macewan first applied the method of autologous bone transplantation to repair the skull. This method was later promoted. Although the autologous bone transplantation technique does not need to consider the biocompatibility and rejection of the graft and the host, it can be better. Healing, but after all, there is a shortage of autologous bone sources, which cannot ...

AI Technical Summary

Problems solved by technology

The porous titanium artificial structure bone obtained in this way has been tested, but the porous titanium block structure is difficult to control or even uncontrollable, and it is difficult to ensure the shape of the structure, resulting in low porosity, dead units, and stress shielding. Moreover, the artificial bone entity produced by it needs further operations such as machining and surface treatment to obtain artificial bone implants, so the performance of trabecular bone implants worthy of this processing method also exists in the industry. doubt

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