Baidya K P, Ramakrishna S, Rahman M, Ritchie A
Department of Mechanical and Production Engineering, National University of Singapore, Singapore.
J Biomater Appl. 2001 Jan;15(3):279-89. doi: 10.1106/BKLQ-E2YG-D2LA-RG3R.
X-ray radiographic examination of the bone fracture healing process is a widely used method in the treatment and management of patients. Medical devices made of metallic alloys reportedly produce considerable artifacts that make the interpretation of radiographs difficult. Fiber reinforced polymer composite materials have been proposed to replace metallic alloys in certain medical devices because of their radiolucency, light weight, and tailorable mechanical properties. The primary objective of this paper is to provide a comparable radiographic analysis of different fiber reinforced polymer composites that are considered suitable for biomedical applications. Composite materials investigated consist of glass, aramid (Kevlar-29), and carbon reinforcement fibers, and epoxy and polyether-ether-ketone (PEEK) matrices. The total mass attenuation coefficient of each material was measured using clinical X-rays (50 kev). The carbon fiber reinforced composites were found to be more radiolucent than the glass and kevlar fiber reinforced composites.
骨折愈合过程的X射线影像学检查是患者治疗和管理中广泛使用的方法。据报道，由金属合金制成的医疗设备会产生大量伪影，这使得X光片的解读变得困难。由于其射线可透过性、轻质以及可定制的机械性能，纤维增强聚合物复合材料已被提议用于替代某些医疗设备中的金属合金。本文的主要目的是对不同的、被认为适用于生物医学应用的纤维增强聚合物复合材料进行可比的影像学分析。所研究的复合材料由玻璃、芳纶（凯夫拉-29）和碳纤维增强材料以及环氧树脂和聚醚醚酮（PEEK）基体组成。使用临床X射线（50千电子伏特）测量了每种材料的总质量衰减系数。结果发现，碳纤维增强复合材料比玻璃和凯夫拉纤维增强复合材料的射线可透过性更强。
