摘要
医用压缩袜在进行压力测试时,需要将产品套于木制标准腿模上。然而木制腿模因其表面硬度与人体皮肤差异巨大,所测量的压力值并不能代表真实人体所受到的压力值。文章旨在采用3D打印技术开发一种更符合人体皮肤的柔性假肢,并利用接触压力测量仪测量医用压缩袜分别在真实人体下肢、柔性假肢和木制腿模上的压力分布。通过对比测量结果,发现医用压缩袜在木制腿模上会产生较真实人体更大的压力,而柔性假肢的压力分布更符合真实人体。此外,引入Spearman相关检验,发现柔性假肢的压力测量结果与真实人体的相关系数达到0.860,而木制腿模的压力测量结果与真实人体的相关系数仅为0.516。研究表明,开发的3D打印柔性假肢可更加精确地评估医用压缩袜的压力等级,并能进一步用于医用压缩袜的标准测试。
Compression stockings establish a controlled pressure gradient from the ankle to the thigh,characterized by higher pressure at the ankle and lower pressure at the thigh.These stockings are widely utilized in medical,healthcare,sports,and body shaping contexts.The pressure value of compression stockings significantly impacts their application.To determine the pressure value,two primary methods are utilized:indirect and direct measurements.Indirect measurements depend on tension tests,and rely on Laplace’s Law to determine the pressure exerted by the fabric on the interface by gauging the force value.However,these mathematical models only predict the average interface pressure of the pressure area,lacking detailed local pressure data.Direct measurements provide precise data on the local interface pressures exerted by compression stockings.Yet,various devices affect the accuracy of these measurements,including wooden leg mannequins and regular-shaped tubes.Currently,scholars are focusing on human legs to obtain precise compression stocking pressure values.Nonetheless,such measurements face limitations.Subjects must remain standing and stationary,as lower-limb trembling can introduce experimental data instability.Additionally,while devices simulating the human leg are used in measurements,rigid devices may not provide accurate pressure values compared to actual human legs.Soft mannequins are gradually replacing rigid ones in this context.The leg mannequin was utilized to measure the stocking at four distinct locations across six cross-sectional planes.By comparing the contact pressure data obtained from the fabricated leg mannequin,the standard-sized wooden leg mannequin,and human legs,it was found that the the pattern observed in the fabricated mannequin aligned closely with that of human legs.Notably,the wooden mannequin exerted a significantly higher level of contact pressure compared to human legs.Furthermore,the local contact pressure data from the fabricated leg mannequin demonstrated strong concurrence with
作者
孙光武
李青
李储林
韩慧敏
陈郁
胡红艳
胡文锋
SUN Guangwu;LI Qing;LI Chulin;HAN Huimin;CHEN Yu;HU Hongyan;HU Wenfeng(Mechanical and Electrical Engineering College,Hainan Vocational University of Science and Technology,Haikou 571126,China;School of Textiles and Fashion,Shanghai University of Engineering Science,Shanghai 201620,China;GTTC Testing Technology(Shanghai)Co.,Ltd.,Shanghai 201616,China)
出处
《丝绸》
CAS
CSCD
北大核心
2024年第4期97-104,共8页
Journal of Silk
基金
海南省自然科学基金项目(223MS054)。
关键词
医用压缩袜
接触压力
木制腿模
柔性假肢
真实人体
测试标准
medical compression stockings
contact pressure
wooden leg mannequin
flexible prosthesis
real human body
test standards
