Title :
Waveform generator system to transcorneal stimulation based on a digital adaptive model
Author :
Robles-Camarillo, D. ; Niño-de-Rivera, L. ; Quiroz-Mercado, H. ; López-Miranda, M.J.
Author_Institution :
Gaduated Dept., ESIME-UC-IPN, Mexico City
Abstract :
The present work proposes an electronic waveform generator for transcorneal electrical stimulation (TES). The applied waveform model is generated into a digital processor by means of an adaptive finite impulse response (FIR) filter, which output waveform is synthesized from the original one registered using a multi-focal electroretinograph (MF-ERG). The stimulation waveform applied in patients with central retinal artery occlusion (CRAO) in this procedure, is qualitatively different from the one reported by others like Tano et. al. [1, 2]. Results show that CRAO patients stimulated with the proposed waveform, reported phosphenes associated with variations of the filter coefficients.
Keywords :
FIR filters; adaptive filters; electroretinography; waveform generators; adaptive finite impulse response filter; central retinal artery occlusion; digital adaptive model; electronic waveform generator; multi-focal electroretinograph; transcorneal electrical stimulation; Adaptive filters; Arterial occlusion; Electrical stimulation; Finite impulse response filter; Mathematical model; Medical treatment; Polynomials; Retina; Signal generators; Voltage; Adaptive filter; artery occlusion; waveform;
Conference_Titel :
Electrical Engineering, Computing Science and Automatic Control, 2008. CCE 2008. 5th International Conference on
Conference_Location :
Mexico City
Print_ISBN :
978-1-4244-2498-6
Electronic_ISBN :
978-1-4244-2499-3
DOI :
10.1109/ICEEE.2008.4723382
