3D打印个体化骨盆假体多孔结构物理性能检测方法研究

目的提出针对三维(3D)打印个体化骨盆假体多孔结构部分物理性能的检测方法并通过实验验证方法的可行性。方法设计3D打印个体化骨盆假体多孔结构孔径、丝径、孔隙率和抗压强度的检测方法。使用3D打印个体化骨盆假体样品和同等工艺制造的致密样件、多孔样件,对其各个项目分别进行了验证实验,并对实验结果进行了分析。结果根据文中提出的检测方法,测得实验样品的平均孔径为464.95μm,平均丝径为601.13μm,平均孔隙率为62.47%,平均抗压强度为48.0 MPa。结论提出了针对3D打印个体化骨盆假体多孔结构多项物理性能的检测方法,验证实验表明方法可行性,并且重复操作性良好,具有较高的应用价值。

Research on physical performance detecting method of porous structure of individualized 3D printing pelvic prostheses

Objective To propose a method for measuring the physical properties of porous structure of individualized threedimensional(3 D) printing pelvic prosthesis, and verify the feasibility of the method through experiments. Methods A method for measuring pore size, wire diameter, porosity and compressive strength of porous structure of individualized 3 D printing pelvic prosthesis was proposed. Samples of individualized 3D printing pelvic prosthesis and compact and porous samples manufactured by the same process were used to validate each item, and the experimental results were analyzed. Results According to the method proposed in this paper, the average pore size of test sample was 464.95 μm, the average wire diameter was601.13 μm, the average porosity was 62.47 % and average compressive strength was 48.0 MPa. Conclusion A method for measuring the physical properties of porous structure of individualized 3D printing pelvic prosthesis is proposed. The experimental results showed that the method is feasible, reproducible with high application value.