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通过增材制造实现碳纤维热塑性植入物的创新生物机械设计和性能

Vacharat Thongsumrit¹, Phorntep Chaitaweepakorn¹, Pajjittar Kolimart¹

¹Advanced Materials and Structures Laboratory (AMASS) and Center for Lightweight Materials Design and Manufacturing, Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, Thung Khru, Bangkok, Thailand.

Journal of biomedical materials research. Part B, Applied biomaterials

|November 4, 2025

概括

3D打印的碳纤维复合材料对医疗植入物具有前景,在拉出强度和骨愈合能力方面表现优于. 这些先进的材料为传统的金属植入物提供了可定制的替代品.

科学领域:

生物材料工程生物材料工程
添加剂制造添加剂制造添加剂制造
整形外科植入物整形外科植入物

背景情况:

传统的金属植入物,如Ti-6AL-4V合金,在促进骨愈合方面存在局限性.
需要先进的可植入材料,具有改进的生物机械性能.
3D打印为创建复杂的植入物几何形状和定制解决方案提供了潜力.

研究的目的:

评估3D打印的碳纤维增强热塑性复合材料 (尼龙,PEEK) 作为医疗植入物中合金的替代品.
将新型复合材料设计的机械性能和骨愈合潜力与传统植入物进行比较.
为3D打印复合体植入物提供化丝制造 (FFF) 的设计指南.

主要方法:

化纤维制造 (FFF) 用于3D打印碳纤维增强尼龙和PEEK复合材料.
实验分析和有限元法 (FEM) 模拟用于评估.
性能是根据螺丝拉出力,生物弹性合应变能量密度 (SED),螺丝松动,骨头重塑和再吸收来评估的.

主要成果:

与Ti-6AL-4V相比,新型不连续碳纤维-PEEK和连续碳纤维-尼龙复合材料的螺丝拉出力减少了近50%.
热塑性复合材料表现出明显更高的生物弹性合应变能量密度 (SED),这表明骨愈合潜力增强.
多标准评价显示,3D打印复合材料在关键性能指标中比性能优于33%-65%.

结论:

3D打印的碳纤维增强热塑性复合材料在医疗植入物中表现出比合金更高的性能.
这些材料显示出促进骨愈合和形成的巨大潜力.
该研究为开发有效,可定制的3D打印复合体植入物作为金属植入物的替代品提供了有价值的设计指南.

关键词:

通过3D打印打印3D打印.骨头改造骨头改造骨头改造骨质再吸收骨质再吸收植入物板植入物板植入物板创新的设计创新的设计.热塑复合材料是一种热塑复合材料.

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