KENNEY, Laurence, HELLER, Ben, BARKER, Anthony T., REEVES, Mark L., HEALEY, Jamie, GOOD, Timothy R., COOPER, Glen, SHA, Ning, PRENTON, Sarah, LIU, Anmin and HOWARD, David (2016). A review of the design and clinical evaluation of the ShefStim array-based functional electrical stimulation system. Medical Engineering & Physics, 38 (11), 1159-1165.
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Functional electrical stimulation has been shown to be a safe and effective means of correcting foot 12 drop of central neurological origin. Current surface-based devices typically consist of a single channel stimulator, 13 a sensor for determining gait phase and a cuff, within which is housed the anode and cathode. The cuff-mounted 14 electrode design reduces the likelihood of large errors in electrode placement, but the user is still fully responsible 15 for selecting the correct stimulation level each time the system is donned. Researchers have investigated different 16 approaches to automating aspects of setup and/or use, including recent promising work based on iterative learning 17 techniques. This paper reports on the design and clinical evaluation of an electrode array-based FES system for 18 the correction of drop foot, ShefStim. The paper reviews the design process from proof of concept lab-based study, 19 through modelling of the array geometry and interface layer to array search algorithm development. Finally, the 20 paper summarises two clinical studies involving patients with drop foot. The results suggest that the ShefStim 21 system with automated setup produces results which are comparable with clinician setup of conventional systems. 22 Further, the final study demonstrated that patients can use the system without clinical supervision. When used 23 unsupervised, setup time was 14 minutes (9 minutes for automated search plus 5 minutes for donning the 24 equipment), although this figure could be reduced significantly with relatively minor changes to the design.
|Research Institute, Centre or Group:||Centre for Sports Engineering Research|
|Depositing User:||Helen Garner|
|Date Deposited:||23 Aug 2016 15:24|
|Last Modified:||21 Jan 2017 20:22|
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