Design and development of transcutaneous electrical stimulation equipment for neuromuscular rehabilitation in individuals with facial palsy

Jorge Eduardo Quintero, Giovanni Francisco Manotas, Yuber Alejandro Galeano, Diego Mauricio Tellez


Peripheral facial palsy is a relatively common pathology that is usually unilateral. Multiple causes generate it, producing aesthetic and functional deformity, as well as emotional, social, and professional alterations. We developed electronic equipment for transcutaneous electric stimulation, which will be applied in neuromuscular rehabilitation treatments of individuals who have suffered peripheral facial palsy. Electrotherapeutic energy is generated through current sources, whose waveforms consist of rectangular biphasic pulses, which can be adjusted in their duration or width, frequency, and intensity. For patient electrical safety, the equipment is powered with batteries. The waveforms generated and the therapeutic parameters are controlled through a microcontroller. What differentiates this equipment from the few found in the market, for this rather specific application, is that it was designed with four independent channels for passive therapy, which permits stimulating more than one neuromuscular package at the same time, and also has one channel for active therapy, which is dynamically applied by the therapist by moving the active electrode over the surface of the face.


Faradic currents; electrotherapy; neuromuscular stimulation; facial palsy; biphasic pulses

Full Text:



Neurotrauma Center: “Neurorehabilitación especializada de personas con enfermedades neurológicas y lesiones adquiridas de cerebro y médula espinal”. [Online]. Disponible: 21-05-2014, 11:00:00.

Centro de Investigación, Desarrollo e Innovación en Ingeniería de Rehabilitación (CIDi – IngeRehab): “Investigación en Ingeniería de Rehabilitación”. [Online]. Available in:

-05-2014, 11:10:00

Sociedad Argentina de Bioingeniería: “Ingeniería en Rehabilitación”. [Online]. Available in:

-05-2014, 11:20:00.

C. Rory, Rehabilitation Engineering Applied to Mobility and Manipulation. New York, NY: Taylor and Francis, 2005, pp. 1–6

T. Horia-Nicolai, Intelligent Systems and Technologies in Rehabilitation Engineering. New York, NY: CRC Press LCC, 2001, pp. 3–13

D. Daniel, NeuroEngineering. New York, NY: CRC Press LCC, 2008, pp. 1–12

Enciclopedia Médica: “Enfermedades Neuronales”. [Online]. Available in:

-05-2014, 16:55:00

Biblioteca Nacional de Medicina de EE.UU. Institutos Nacionales de la Salud: “Parálisis de Bell”. [Online]. Available in:

-05-2014, 17:15:00

Instituto Nacional de Trastornos Neurológicos y Accidentes Cerebrovasculares: “Parálisis de Bell”. [Online]. Available in:

-05-2014, 17:20:00

F. F. Paula, H.G. Luis, and M.Z. Ramon. “Idiopathic peripheral facial paralysis treatment physic therapy versus prednisone” Revista Médica del Instituto Mexicano del Seguro Social., vol. 36, no.3, pp. 217–221, May. 1998.

Y. Xin, J. Jun, S. Steven, X. Qing and W. Guoxin “A Blink Restoration System With Contralateral EMG Triggered Stimulation and Real-Time Artifact Blanking” IEEE Transactions on Biomedical Circuits and Systems, vol. 7, no.2, pp. 140–148, Apr. 2013.

A. Robinson, Clinical Electrophysiology. Electrotherapy and Electrophysiologic Testing .Baltimore, MD: Lippincott, 2008, pp. 1–107

L. Blum, Exploring Arduino. Tools and Techniques for Engineering Wizardry. Indianapolis, IN: Wiley, 2013, pp. 13–62.



  • There are currently no refbacks.

Copyright (c) 2015 TECCIENCIA Journal