Título

Design and simulation of an integrated wireless capacitive sensors array for measuring ventricular pressure

Autor

NATIELY HERNANDEZ SEBASTIAN

Daniela Diaz_Alonso

Francisco-J Renero-C

Noé Villa_Villaseñor

WILFRIDO CALLEJA ARRIAGA

Nivel de Acceso

Acceso Abierto

Referencia de publicación

ISSN/1424-8220

URL/http://www.mdpi.com/1424-8220/18/9/2781

doi: 10.3390/s18092781

Resumen o descripción

This paper reports the novel design of a touch mode capacitive pressure sensor (TMCPS) system with a wireless approach for a full-range continuous monitoring of ventricular pressure. The system consists of two modules: an implantable set and an external reading device. The implantable set, restricted to a 2 2 cm2 area, consists of a TMCPS array connected with a dual-layer coil, for making a reliable resonant circuit for communication with the external device. The capacitive array is modelled considering the small deflection regime for achieving a dynamic and full 5–300 mmHg pressure range. In this design, the two inductive-coupled modules are calculated considering proper electromagnetic alignment, based on two planar coils and considering the following: 13.56 MHz frequency to avoid tissue damage and three types of biological tissue as core (skin, fat and muscle). The system was validated with the Comsol Multiphysics and CoventorWare softwares; showing a 90% power transmission efficiency at a 3.5 cm distance between coils. The implantable module includes aluminum- and polyimide-based devices, which allows ergonomic, robust, reproducible, and technologically feasible integrated sensors. In addition, the module shows a simplified and low cost design approach based on PolyMEMS INAOE® technology, featured by low-temperature processing.

Author Contributions: N.H.-S.: Conceptualization, Formal analysis, Investigation, Methodology, Software, Visualization andWriting original draft. D.D.-A.: Formal analysis, Investigation, Methodology and Validation. F.J.R.-C.: Investigation, Resources and Validation; N.V.-V.: Software, Resources and Validation. W.C. A.: Project administration, Resource, Supervision, Visualization, Writing-review and editing.

Acknowledgments: Natiely Hernandez Sebastián acknowledges Conacyt program scholarship #549792

Editor

MDPI

Fecha de publicación

2018

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Formato

application/pdf

Fuente

Sensors, v. 18, p. 2781

Idioma

Inglés

Audiencia

Público en general

Sugerencia de citación

Hernández-Sebastián, N.; Díaz-Alonso, D.; Renero-Carrillo, F.J.; Villa-Villaseñor, N.; Calleja-Arriaga, W. Design and Simulation of an Integrated Wireless Capacitive Sensors Array for Measuring Ventricular Pressure. Sensors 2018, 18, 2781.

Repositorio Orígen

CIATEQ Digital

Descargas

4

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