A programmable and portable NMES device for drop foot correction and blood flow assist applications

被引:24
作者
Breen, Paul P. [1 ,2 ]
Corley, Gavin J. [1 ,2 ]
O'Keeffe, Derek T. [3 ]
Conway, Richard [1 ,3 ]
OLaighin, Gearoid [1 ,2 ]
机构
[1] Natl Univ Ireland, Dept Elect Engn, Galway, Ireland
[2] Natl Univ Ireland, Natl Ctr Biomed Engn Sci, Galway, Ireland
[3] Univ Limerick, Dept Elect & Comp Engn, Limerick, Ireland
关键词
Drop foot; Electrical stimulation; NMES; Blood flow; Rehabilitation; Portable; Programmable; Stimulator; Adaptive stimulation; ELECTRICAL-STIMULATION; GASTROCNEMIUS-MUSCLE; SENSOR; SYSTEM; PHASE; GAIT;
D O I
10.1016/j.medengphy.2008.05.003
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The Duo-STIM, a new, programmable and portable neuromuscular stimulation system for drop foot correction and blood flow assist applications is presented. The system consists of a programmer unit and a portable, programmable stimulator unit. The portable stimulator features fully programmable, sensor-controlled, constant-voltage, dual-channel stimulation and accommodates a range of customized stimulation profiles. Trapezoidal and free-form adaptive stimulation intensity envelope algorithms are provided for drop foot correction applications, while time dependent and activity dependent algorithms are provided for blood flow assist applications. A variety of sensor types can be used with the portable unit, including force sensitive resistor-based foot switches and MEMS-based accelerometer and gyroscope devices. The paper provides a detailed description of the hardware and block-level system design for both units. The programming and operating procedures for the system are also presented. Finally, functional bench test results for the system are presented. (c) 2008 IPEM. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:400 / 408
页数:9
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