PDF(Pubmed)
Abstract：
Orthotic devices play an important role in medical treatment, addressing various pathologies and promoting patient recovery. Customization of orthoses to fit individual patient morphologies and needs is essential for optimal functionality and patient comfort. The advent of additive manufacturing has revolutionized the biomedical field, offering advantages such as cost reduction, increased personalization, and enhanced dimensional adaptability for orthotics manufacturing. This research focuses on the impact strength of nine polymeric materials printed by additive manufacturing, including an evaluation of the materials\' performance under varying conditions comprising different printing directions (vertical and horizontal) and exposure to artificial sweat for different durations (0 days, 24 days, and 189 days). The results showed that Nylon 12 is good for short-term (24 days) immersion, with absorbed energies of 78 J and 64 J for the vertical and horizontal directions, whereas Polycarbonate (PC) is good for long-term immersion (189 days), with absorbed energies of 66 J and 78 J for the vertical and horizontal directions. Overall, the findings contribute to a better understanding of the suitability of these materials for biomedical applications, considering both short-term and long-term exposure to physiological and environmental conditions.
摘要：
矫形器在医疗中起着重要的作用,解决各种病症并促进患者康复。定制矫形器以适应个体患者的形态和需求对于最佳功能和患者舒适度至关重要。增材制造的出现彻底改变了生物医学领域，提供降低成本等优势，增加个性化，增强矫形器制造的尺寸适应性。这项研究的重点是通过增材制造印刷的九种聚合物材料的冲击强度，包括评估材料在不同条件下的性能，包括不同的打印方向（垂直和水平）和暴露于不同持续时间的人造汗液（0天，24天,和189天）。结果表明，尼龙12适合短期（24天）浸泡，垂直和水平方向的吸收能量为78J和64J，而聚碳酸酯（PC）适合长期浸泡（189天），垂直和水平方向的吸收能量为66J和78J。总的来说,这些发现有助于更好地理解这些材料在生物医学应用中的适用性，考虑短期和长期暴露于生理和环境条件。
