Paper Info
Title
Design and Simulation of an Integrated Wireless Capacitive Sensors Array for Measuring Ventricular Pressure.
Abstract
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 x 2 cm(2) 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 (R) technology, featured by low-temperature processing.
Year
DOI
Venue
2018
10.3390/s18092781
SENSORS
Keywords
DocType
Volume
RF MEMS,pressure sensor,MEMS resonators,implantable BioMEMS,flexible electronics,touch mode capacitive sensor
Journal
18
Issue
Citations 
PageRank 
9.0
0
0.34
References 
Authors
2
5
Name
Order
Citations
PageRank
Natiely Hernández-Sebastián100.34
Daniela Díaz-Alonso200.34
Francisco-J. Renero-Carrillo300.68
Noé Villa-Villaseñor401.01
Wilfrido Calleja Arriaga500.34