Biomimetic design osteoid porous bone product and preparation method thereof

Abstract

The invention relates to a bionics design bone-line porous bone product and a preparation method and a purpose thereof, and belongs to the field of biomedical materials. The bionics design bone-line porous bone product is of a body-centered three-dimensional lattice micropore space structure, the atom positions of a unit body of the micropore space structure are filled by geometries, each geometry is a sphere casing or a sphere body, and is crossed with the surrounding sphere casings or the sphere bodies, and a through circular hole is formed in each crossing part. The bionics design bone-line porous bone product has the advantages that by utilizing a three-dimensional printing quick forming manufacturing technique, the excessive cutting waste is avoided, the utilization rate of material is high, and the processing is rapid; the bone-line porous bone nails, bars and plates prepared by the bionics design bone-line porous bone product are used for the human body hard tissue defect repair, bone tissue engineering stents, and bearing part bone tissue wound repair and reconstruction, the good structure integrity and shape customizing capability are realized, various shapes can be processed according to the patient bone tissue defect repair requirements, and the personalized medical requirements of the patient are met.

Description

technical field

[0001] The invention relates to a bionic design bone-like porous bone product, a preparation method and application thereof, and belongs to the field of biomedical materials. Background technique

[0002] Due to their excellent corrosion resistance, biocompatibility, low density and high specific strength, titanium and titanium alloys have been widely used in medical surgery, especially in the field of bone repair. Biomedical implants are special functional materials closely related to human life and health. Compared with other metal materials, titanium and titanium alloys have huge inherent advantages. At room temperature, the density of titanium and titanium alloys is 4.5g / cm 3 , Only 56% of stainless steel. Implantation in the body can greatly reduce the load of the implant; at the same time, the elastic modulus of titanium and titanium alloys is low, pure titanium is 108.5GPa, which is only 53% of stainless steel, and the implantation in the body is cl...

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