Additive fabrication of custom pedorthoses for clubfoot correction
Additive fabrication of custom pedorthoses for clubfoot correction
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DOI：
10.1108/13552541011034852
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发表时间：
2010-01-01
影响因子：
3.9
通讯作者：
Liu, Xue-Cheng
中科院分区：
文献类型：
--
作者：
Cook, Douglas;Gervasi, Vito;Liu, Xue-Cheng
目的-本文的目的是确定最实用的手段转换成功能pedorthoses的计算机辅助设计模型的定制马蹄内翻足pedorthoses在临床试验中对患者进行测试。设计/方法/途径-在传统的矫形器制造中使用的材料尚未可用于固体自由形式的制造;因此，为了制造足矫形器，考虑了几种方法，包括直接制造，基于添加剂的模制，结果-所选择的增材制造定制硬壳的方法，并模制聚氨酯泡沫插入件，结果是准确、耐用和有效的脚矫形器，非常适合，并且可以根据需要进行调整。目前正在测试的pedorthoses生产的各自的患者，他们的流动性和程度的改善畸形足矫正，并将继续通过2010年年初。实际影响-增材制造提供了一个理想的方法，用于生成定制的，最终使用的硬和软层模式：每个pedorthoses是真正独特的，和软层具有可变厚度的区域。与制造矫正装置的常规方法相比，这种方法的优点是减少了劳动力并且增加了可用的设计自由度。更换插入可以在几个小时内使用这种硅树脂成型approach.Originality/值-几种新的方法，用于制造定制矫正装置进行了探讨，并讨论了相关的结果。本文的目的是传达的潜力，制造过程中使用的经验教训，这个项目的快速原型和矫正社区。
Purpose - The purpose of this paper is to determine the most-practical means of transforming computer-aided-design models of custom clubfoot pedorthoses into functional pedorthoses for testing on patients in a clinical trial.Design/methodology/approach - The materials used in conventional orthosis fabrication are not yet available for solid free-form fabrication; therefore, to fabricate the pedorthoses, several approaches were considered, including direct manufacturing, additive-based moulding, laser cutting of foam and combinations of several of these approaches.Findings - The chosen approach of additively manufacturing the custom hard shell, and moulding the polyurethane-foam insert, resulted in accurate, durable and effective pedorthoses that fit well, and could be adjusted as needed. The pedorthoses that were produced are currently being tested on the respective patients for their improvement in mobility and degree of clubfoot correction, and will continue through early 2010.Practical implications - Additive manufacturing provides an ideal approach for generating the custom, end-use hard- and soft-layer patterns: each pedorthosis is truly unique; and the soft layer has regions of variable thickness. The advantage of this approach is the reduction in labour and the increase in degrees of design freedom available, compared to conventional methods of fabricating orthotic devices. Replacement inserts can be moulded in a matter of hours using this silicone-moulding approach.Originality/value - Several new approaches for fabricating custom orthotic devices were explored, and the related results are discussed. The goal of this paper is to convey the potential of the fabrication procedure used and lessons learned on this project to the rapid prototyping and orthotic communities.