Design and testing of a prototype foot orthosis that uses the principle of granular jamming
Design and testing of a prototype foot orthosis that uses the principle of granular jamming
复制标题
利用颗粒干扰原理设计和测试原型足矫形器
DOI：
10.1097/pxr.0000000000000018
复制
发表时间：
2021
影响因子：
1.5
通讯作者：
Chang, Young-Hui
中科院分区：
文献类型：
--
作者：
Simonds, Emily;Colton, Jonathan;Kogler, Geza;Chang, Young-Hui
Study Design:A mechanical testing protocol was used to compare the material properties of commercially available foams with that of a newly designed granular jamming orthosis prototypes.Background:Foot orthoses have an inherent limitation of predetermined mechanical material properties coupled with a fixed orthotic interface shape that cannot be readily changed.Objectives:To develop and test a novel orthotic insole design concept that incorporates principles of granular jamming.Methods:Granular media were used in combination with vacuum pressure to create a variable stiffness granular foot orthosis. Four types of granular media (rice, poppy seeds, micropolystyrene, and polystyrene beads) were tested in different prototype configurations varying in volume fill and particulate size. Stress–strain curves were obtained from uniaxial compression tests to characterize granular foot orthosis prototypes in comparison with commercial orthotic foams.Results:Increasing vacuum pressure increased prototype stiffness for most configurations. A single granular jamming orthosis could exhibit energy absorption values that spanned the entire commercial foam performance range, and in some cases extended far beyond the upper values of the tested foams.Conclusion:The results suggest that granular jamming principles can provide clinicians the capability for rapid selection of mechanical properties over a wide range of orthosis stiffnesses. Importantly, patients could don the orthosis because the clinician makes real-time assessments and adjustments in the clinic.BackgroundOrthoses are generally designed for a specific purpose based on factors such as expected loading of a region. 1, 2 For custom-molded foot orthoses, shape capture of the plantar surface is required, where interface shape and material properties are predetermined for the treatment period. Changes in orthotic management often require fabrication of an entirely new orthosis, which is time-consuming and costly. 3, 4 A solution for quick alteration of shape and mechanical properties would be a major clinical advancement for orthotic treatment. Here, we present the design and testing of an adjustable granular jamming foot orthosis prototype.
糖尿病鞋垫用双密度矫形材料的物理特性、耐久性和能量耗散功能
影响因子：
2.7
作者：
J. Brodsky;F. Pollo;D. Cheleuitte;B. Baum
通讯作者：
B. Baum
用于定制足部矫形器的基于膨胀的印模和制造技术
影响因子：
1.5
作者：
Larissa A Sletto;Yeongchi Wu;C. Robinson
通讯作者：
C. Robinson
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
Myron J. Maurer;Byoung;K. Sehanobish;G. Vogel
通讯作者：
G. Vogel