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Contactless capacitive electrocardiography using hybrid flexible printed electrodes

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Lessard-Tremblay, Mathieu, Weeks, Joshua, Morelli, Laura, Cowan, Glenn, Gagnon, Ghyslain et Zednik, Ricardo J.. 2020. « Contactless capacitive electrocardiography using hybrid flexible printed electrodes ». Sensors (Switzerland), vol. 20, nº 18.

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Abstract

Traditional capacitive electrocardiogram (cECG) electrodes suffer from limited patient comfort, difficulty of disinfection and low signal-to-noise ratio in addition to the challenge of integrating them in wearables. A novel hybrid flexible cECG electrode was developed that offers high versatility in the integration method, is well suited for large-scale manufacturing, is easy to disinfect in clinical settings and exhibits better performance over a comparable rigid contactless electrode. The novel flexible electrode meets the frequency requirement for clinically important QRS complex detection (0.67–5 Hz) and its performance is improved over rigid contactless electrode across all measured metrics as it maintains lower cut-off frequency, higher source capacitance and higher pass-band gain when characterized over a wide spectrum of patient morphologies. The results presented in this article suggest that the novel flexible electrode could be used in a medical device for cECG acquisition and medical diagnosis. The novel design proves also to be less sensitive to motion than a reference rigid electrode. We therefore anticipate it can represent an important step towards improving the repeatability of cECG methods while requiring less post-processing. This would help making cECG a viable method for remote cardiac health monitoring.

Item Type: Peer reviewed article published in a journal
Professor:
Professor
Gagnon, Ghyslain
Zednik, Ricardo
Affiliation: Génie électrique, Génie mécanique
Date Deposited: 12 Nov 2020 21:41
Last Modified: 04 Mar 2021 21:56
URI: https://espace2.etsmtl.ca/id/eprint/21385

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