Research and Development of a New Type of Walking Aids for Lower Limbs

目的设计一种新型助行器，要求能够分散受力点，减少上半身体部分局部受力以尽量避免腋部并发症与不适感，同时要求结构简单，制造方便。方法应用Solidwork软件进行结构设计：主体略呈长“T”形，主要包括腋托、手把、小腿支撑、拐杖脚等部分。主体及各主要部分受力情况采用ABAQUS软件进行有限元分析。结果采用普通304不锈钢管材制造的助行器符合强度要求。结论设计的新型助行器具有结构简单、使用方便、安全可靠、操作流程易懂的特点，可满足不同状态下的需求和不同高度人体的使用。研制出的新型下肢助行器，可为进一步通过基于下肢受力点设计出助行器提供相关参考。Objective To design a new type of walking aids, which can disperse force, decrease the stress on the upper exmnerty, reduce complications and discomfort of axilla, and has the advantages of simple structure and convenient manufacture. Methods The structure was design with Solidwork software： the main part looked a little like ＂T＂, including the axillary support part, handle part, leg support part, crutch feet part and so on. The force of the major structure and the main parts was analyzed by ABAQU--an engineering simulation finite element analysis software. Results The walking aids made of ordinary 304 stainless steel tube met the mechanical requirements. Conclusions The new type of designed walking aids has the features of simple structure, convenient use, safety and reliability, and easy operation process, which can meet the requirements in different states and the use by people with different heights. The new type of designed walking aids for lower limbs can further provide relevant reference for new kinds of walking aids to design on the basis of force points of lower limbs.厦门市科技局科技惠民计划项目（3502220154017