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CAD tools for designing shoe lasts for people with diabetes

机译：用于糖尿病患者的鞋last设计CAD工具

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摘要

In the context of a research program aiming at defining a framework to acquire patient data and support the whole shoe design and manufacturing process, this paper presents new CAD tools to design and validate lasts for shoes designed specifically for people with diabetes. Shoe last customising systems have already been proposed in the literature. However, tools for designing shoes for people with diabetes do not currently have the capacity to modify the last in order to reduce the risk of foot ulceration, whilst at the same time preserving the style of the shoe. The main contributions of the work are given by a method to identify the required design features to guarantee the footwear preventive function, the determination of a systematic protocol for orienting and measuring the virtual models of the feet and the lasts, and the definition of geometrical operators to modify the last shape according to its original aesthetic and the required footwear parameters. Such variables are computed by a knowledge based system on the basis of the patient's pathology. The paper presents the implementation of two CAD tools and describes the procedures and the geometrical algorithms to handle the last geometry. Finally a case study is reported to show the advantages provided by the proposed approach in terms of achieved quality of the design process and expected footwear performance.
机译：在旨在定义框架以获取患者数据并支持整个鞋子设计和制造过程的研究计划的背景下，本文提出了新的CAD工具，用于设计和验证专门为糖尿病患者设计的鞋子的鞋last。鞋last定制系统已在文献中提出。但是，为糖尿病患者设计鞋子的工具目前没有能力改变鞋last，以减少患足溃疡的风险，同时保留鞋子的风格。这项工作的主要贡献是通过一种方法来确定所需的设计特征以保证鞋类的预防功能，确定用于定向和测量脚和the的虚拟模型的系统协议以及定义几何算子的方法根据其原始美学和所需鞋类参数修改鞋shape形状。这样的变量由基于知识的系统基于患者的病理学来计算。本文介绍了两个CAD工具的实现，并介绍了处理最后一个几何的步骤和几何算法。最后，据报道进行了案例研究，显示了所提出方法在设计过程中达到的质量和预期的鞋类性能方面具有的优势。

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