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http://ciateq.repositorioinstitucional.mx/jspui/handle/1020/400| Design of a fully integrated inductive coupling system: a discrete approach towards sensing ventricular pressure | |
| Natiely Hernández Sebastián Noé Villa_Villaseñor Francisco-J Renero-C Daniela Diaz_Alonso Wilfrido Calleja Arriaga | |
| Acceso Abierto | |
| Atribución-NoComercial-CompartirIgual | |
| 10.3390/s20051525 | |
| 1424-8220 https://www.mdpi.com/1424-8220/20/5/1525 | |
| Integrated coupling system Ventricular pressure sensor BioMEMS Flexible electronics Wireless power transfer Implantable medical device | |
| 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. | |
| MDPI | |
| 2020 | |
| Artículo | |
| Sensors, vol. 20, no. 5, p. 1525-1545 | |
| Inglés | |
| Público en general | |
| 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 | |
| DISEÑO DE SISTEMAS SENSORES | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Artículos Publicados en Revistas Indexadas |
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| Design of a fully integrated inductive coupling system.pdf | 8.61 MB | Adobe PDF | Visualizar/Abrir |