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Sensors 2018, 18(2), 396; doi:10.3390/s18020396

A Flexible Multiring Concentric Electrode for Non-Invasive Identification of Intestinal Slow Waves

1
Centro de Investigación e Innovación en Bioingeniería, Universitat Politècnica de València, Valencia 46022, Spain
2
Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Valencia 46022, Spain
*
Author to whom correspondence should be addressed.
Received: 28 December 2017 / Revised: 26 January 2018 / Accepted: 26 January 2018 / Published: 30 January 2018
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2017)
View Full-Text   |   Download PDF [3109 KB, uploaded 30 January 2018]   |  

Abstract

Developing new types of optimized electrodes for specific biomedical applications can substantially improve the quality of the sensed signals. Concentric ring electrodes have been shown to provide enhanced spatial resolution to that of conventional disc electrodes. A sensor with different electrode sizes and configurations (monopolar, bipolar, etc.) that provides simultaneous records would be very helpful for studying the best signal-sensing arrangement. A 5-pole electrode with an inner disc and four concentric rings of different sizes was developed and tested on surface intestinal myoelectrical recordings from healthy humans. For good adaptation to a curved body surface, the electrode was screen-printed onto a flexible polyester substrate. To facilitate clinical use, it is self-adhesive, incorporates a single connector and can perform dry or wet (with gel) recordings. The results show it to be a versatile electrode that can evaluate the optimal configuration for the identification of the intestinal slow wave and reject undesired interference. A bipolar concentric record with an outer ring diameter of 30 mm, a foam-free adhesive material, and electrolytic gel gave the best results. View Full-Text
Keywords: ring electrodes; surface recording; Laplacian recordings; intestinal slow wave ring electrodes; surface recording; Laplacian recordings; intestinal slow wave
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zena-Giménez, V.; Garcia-Casado, J.; Ye-Lin, Y.; Garcia-Breijo, E.; Prats-Boluda, G. A Flexible Multiring Concentric Electrode for Non-Invasive Identification of Intestinal Slow Waves. Sensors 2018, 18, 396.

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