3D printing manufacturing method for tantalum-coated hierarchical pore polyether-ether-ketone artificial bone scaffold

Abstract

The invention discloses a 3D printing manufacturing method for a tantalum-coated hierarchical pore polyether-ether-ketone artificial bone scaffold. The method comprises the steps of scanning bone tissues of a human injured part through CT (computed tomography) to ensure that the tissue structure of symmetrical parts can be scanned at the bone tissues of the deficient part, acquiring injured bone image data, importing the data into Mimics software, and establishing a three-dimensional bone model of a human specified part; controlling the software through a 3D printing system to generate a motion locus code; printing a polyether-ether-ketone artificial bone scaffold by using the 3D printing system till the manufacturing process of the whole artificial bone scaffold is completed, putting the dried artificial bone scaffold into the cavity of a sputtering chamber of a magnetron sputtering instrument, bonding the artificial bone scaffold to an objective table by using silver colloid, and plating a tantalum coating on the artificial bone scaffold by adopting a magnetron sputtering technology; discharging gas from the sputtering chamber after the tantalum coating is plated, taking the artificial bone scaffold out, and disinfecting the tantalum-coated hierarchical pore polyether-ether-ketone scaffold to complete all the steps. The artificial bone scaffold is manufactured through 3D printing, so that the method disclosed by the invention has the advantage that the manufactured scaffold is harmless to the human body.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, relates to a 3D printing manufacturing method of a tantalum-coated multi-level porous polyetheretherketone artificial bone support, belongs to the field of biomanufacturing, and is an intersecting field of mechanical engineering, information, tissue engineering, and life sciences. Background technique [0002] Bone is the support of the human body, responsible for supporting, protecting, bearing, hematopoiesis, calcium storage and other functions, and is an important tissue of the human body. Clinically, bone defects are often caused by trauma, infection, congenital defects and other reasons. These are the treatment problems faced by orthopedics every day. It is a very ideal repair method to make artificial bone with artificial materials and fill the position of bone defect. Artificial bone is a human bone substitute made of artificial materials. An ideal artificial bone should have good os...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a 3D printing manufacturing method for a tantalum-coated multi-level porous polyether ether ketone artificial bone scaffold, which solves the problem that most of the existing materials involve high temperature and high pressure processes and use a large number of materials during the manufacturing process of artificial bone scaffolds. The problem of harmful organic solvents to the human body has achieved the preparation of artificial bones with high biological activity, close to the mechanical properties of human bones, and satisfying individual differences

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