Título
Design of a fully integrated inductive coupling system: a discrete approach towards sensing ventricular pressure
Autor
Natiely Hernández Sebastián
Noé Villa_Villaseñor
Francisco-J Renero-C
Daniela Diaz_Alonso
Wilfrido Calleja Arriaga
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: 10.3390/s20051525
Referencia de publicación
ISSN/1424-8220
URL/https://www.mdpi.com/1424-8220/20/5/1525
Materias
Integrated coupling system - (PALABRA CLAVE DEL AUTOR) Ventricular pressure sensor - (PALABRA CLAVE DEL AUTOR) BioMEMS - (PALABRA CLAVE DEL AUTOR) Flexible electronics - (PALABRA CLAVE DEL AUTOR) Wireless power transfer - (PALABRA CLAVE DEL AUTOR) Implantable medical device - (PALABRA CLAVE DEL AUTOR) INGENIERÍA Y TECNOLOGÍA - (CTI) CIENCIAS TECNOLÓGICAS - (CTI) TECNOLOGÍA DE LOS ORDENADORES - (CTI) DISEÑO DE SISTEMAS SENSORES - (CTI) DISEÑO DE SISTEMAS SENSORES - (CTI)
Resumen o descripción
In this paper, an alternative strategy for the design of a bidirectional inductive power transfer (IPT) module, intended for the continuous monitoring of cardiac pressure, is presented. This new integrated implantable medical device (IMD) was designed including a precise ventricular pressure sensor, where the available implanting room is restricted to a 1.8 × 1.8 cm2 area. This work considers a robust magnetic coupling between an external reading coil and the implantable module: a three-dimensional inductor and a touch mode capacitive pressure sensor (TMCPS) set. In this approach, the coupling modules were modelled as RCL circuits tuned at a 13.56 MHz frequency. The analytical design was validated by means of Comsol Multiphysics, CoventorWare, and ANSYS HFSS software tools. A power transmission efficiency (PTE) of 94% was achieved through a 3.5 cm-thick biological tissue, based on high magnitudes for the inductance (L) and quality factor (Q) components. A specific absorption rate (SAR) of less than 1.6 W/Kg was attained, which suggests that this IPT system can be implemented in a safe way, according to IEEE C95.1 safety guidelines. The set of inductor and capacitor integrated arrays were designed over a very thin polyimide film, where the 3D coil was 18 mm in diameter and approximately 50% reduced in size, considering any conventional counterpart. Finally, this new approach for the IMD was under development using low-cost thin film manufacturing technologies for flexible electronics. Meanwhile, as an alternative test, this novel system was fabricated using a discrete printed circuit board (PCB) approach, where preliminary electromagnetic characterization demonstrates the viability of this bidirectional IPT design.
Editor
MDPI
Fecha de publicación
2020
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
Sensors, vol. 20, no. 5, p. 1525-1545
Idioma
Inglés
Audiencia
Público en general
Sugerencia de citación
Hernández Sebastián, N.; Villa Villaseñor, N.; Renero-Carrillo, F.-J.; Díaz Alonso, D.; Calleja Arriaga, W. Design of a Fully Integrated Inductive Coupling System: A Discrete Approach Towards Sensing Ventricular Pressure. Sensors 2020, 20, 1525
Repositorio Orígen
CIATEQ Digital
Descargas
225