Instrumented socket inserts for sensing interaction at the limb-socket interface
Instrumented socket inserts for sensing interaction at the limb-socket interface
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DOI：
10.1016/j.medengphy.2017.11.006
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发表时间：
2018-01-01
影响因子：
2.2
通讯作者：
Sanders, Joan E.
中科院分区：
文献类型：
--
作者：
Swanson, Eric C.;McLean, Jake B.;Sanders, Joan E.
本研究的目的是探讨一种策略，用于设计和制造计算机制造的插座插入嵌入传感器的假肢用户的肢体-插座的相互作用的现场监测。为单个经胫骨假体用户制造了一个内固定衬垫，该衬垫包含三种传感器类型（接近传感器、力敏电阻器和感应传感器），并通过一系列实验室临床试验和两天现场使用对该系统进行了评价。在实验室测试中，3个接近传感器准确地区分了don和dont状态; 4个力感测电阻中的3个测量了随着承重增加而逐渐增加的压力;感应传感器表明，随着假肢袜子的增加，肢体从接受腔中移动得更远，活塞振幅减小。多种传感器类型是必要的，在现场收集的数据分析，以解释袜子的变化如何影响肢体插座的相互作用。仪器插座插入物，与传感器选择，以匹配感兴趣的临床问题，有可能提供重要的见解，以改善病人的护理。(C)2017年IPEM。由爱思唯尔有限公司出版。保留所有权利。
The objective of this research was to investigate a strategy for designing and fabricating computer manufactured socket inserts that were embedded with sensors for field monitoring of limb-socket interactions of prosthetic users. An instrumented insert was fabricated for a single trans-tibial prosthesis user that contained three sensor types (proximity sensor, force sensing resistor, and inductive sensor), and the system was evaluated through a sequence of laboratory clinical tests and two days of field use. During in-lab tests 3 proximity sensors accurately distinguish between don and doff states; 3 of 4 force sensing resistors measured gradual pressure increases as weight-bearing increased; and the inductive sensor indicated that as prosthetic socks were added the limb moved farther out of the socket and pistoning amplitude decreased. Multiple sensor types were necessary in analysis of field collected data to interpret how sock changes affected limb-socket interactions. Instrumented socket inserts, with sensors selected to match clinical questions of interest, have the potential to provide important insights to improve patient care. (C) 2017 IPEM. Published by Elsevier Ltd. All rights reserved.