Almarri, N;
Nahab, F;
Chang, J;
Jiang, D;
Song, W;
Demosthenous, A;
(2023)
Self-Powered Piezoelectric Biosensing Harvester for Intracardiac Monitoring.
In:
BioCAS 2023 - 2023 IEEE Biomedical Circuits and Systems Conference, Conference Proceedings.
IEEE: Toronto, Canada.
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Abstract
This paper presents a novel, biocompatible, in-body energy harvesting piezoelectric biosensing device coupled to sensors for the detection of cardiac allograft vasculopathy. The computational modelling, implementation and measured results of the device are presented. The system includes an ultra-low power readout circuit that operates solely from power harvested from heartbeats. With a natural frequency of 1.52 Hz, the nonlinear piezoelectric harvester generates 56 μW in ex-vivo testing. The device has a 4 × 6 array of fabricated MEMS sensors, which provides over 80% accuracy in detection of heart geometry changes.
| Type: | Proceedings paper |
|---|---|
| Title: | Self-Powered Piezoelectric Biosensing Harvester for Intracardiac Monitoring |
| Event: | 2023 IEEE Biomedical Circuits and Systems Conference (BioCAS) |
| Dates: | 19 Oct 2023 - 21 Oct 2023 |
| ISBN-13: | 9798350300260 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/BioCAS58349.2023.10388511 |
| Publisher version: | http://dx.doi.org/10.1109/biocas58349.2023.1038851... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Cardiac allograft vasculopathy, COMSOL multiphysics, energy harvesting, heart, implantable medical devices, piezoelectric, readout circuits |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10188381 |
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