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增材制造的17-4 PH不钢用于断裂管理装置

Aruntapan Dash¹, Susmita Bose¹, Amit Bandyopadhyay¹

¹W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164, USA.

Virtual and physical prototyping

|January 7, 2026

概括

与传统的316L不钢相比,磁化17-4PH不钢对骨折管理具有前景,提供增强的骨细胞生长和显著减少细菌殖民,与传统的316L不钢相比.

科学领域:

生物材料工程生物材料工程
骨科材料科学科学骨科材料科学
医疗设备创新医疗设备创新

背景情况:

不钢316L (SS316L) 在骨折装置中很常见,但缺乏抗菌性质,可能会引起离子敏感性.
17-4PH不钢具有降低含量和固有的抗菌特性,是潜在的替代品.
激光定向能量沉积 (LDED) 是生产这些金属植入物的制造方法.

研究的目的:

评估17-4PH不钢作为破裂管理装置中SS316L的优质替代品.
研究静电磁场处理对17-4PH生物相容性和抗菌功效的影响.
在实验室中评估SS316L和17-4PH上的骨细胞增殖和细菌抑制.

主要方法:

使用激光定向能量沉积 (LDED) 制造SS316L和17-4PH标本.
压力强度测试用于比较机械性能.
试验室研究涉及人类胎儿骨质细胞培养 (hFOB) 细胞培养和与黄金葡萄球菌和 Pseudomonas aeruginosa 的细菌抑制试验.
对17-4PH标本应用静态磁场.

主要成果:

17-4PH标本的压力强度比SS316L高150%以上.
与SS316L相比,磁化17-4PH显示人类胎儿骨质母细胞增殖率增加了25%.
磁性化17-4PH在 Staphylococcus aureus 和 Pseudomonas aeruginosa 的细菌殖民中显示出70%的减少.

结论:

磁化17-4PH是一种有前途的骨折管理生物材料,提供了更好的机械强度和生物相容性.
该材料显著增强骨质细胞的增殖,并提供大量的细菌耐药性,解决SS316L的局限性.
与磁处理相结合的LDED制造为先进的骨科植入物开发提供了一种新的方法.

关键词:

17-4PH 17-4PH 17-4PH 17-4PH 17-4PH 17-4PH 17-4PH 17-4PH 17-4PH 通过3D打印打印3D打印.增材制造增材制造是一种增材制造.伪气菌 (Pseudomonas aeruginosa,简称P. aeruginosa) 是一种类型的病毒.金黄色葡萄球菌 (金黄色葡萄球菌) (S. aureus)hFOB细胞培养的细胞培养

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Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...