Petreikis, M;
Tiwari, MK;
(2022)
3D Printed Flexible Photoplethysmography Sensor Array for Tissue Oximetry.
In:
FLEPS 2022 - IEEE International Conference on Flexible and Printable Sensors and Systems, Proceedings.
IEEE: Vienna, Austria.
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Abstract
Recently there has been a trend to use the optoelectronic system of pulse oximeters, a photodiode and a pair of light emitting diodes of different wavelengths, to perform elementary tissue oximetry by measuring the changes in oxygenated and deoxygenated haemoglobin concentrations in tissues. This paper presents introductory work into how an affordable flexible array of such tissue oximeters could be manufactured by using direct-write 3D printing and commercial surface mount devices. For this purpose, a flexible printed circuit board was fabricated by printing 30 wt. % silver nanoparticle ink on 60 µm polyimide film. An array of photoplethysmography (PPG) sensors was made by combining the circuit board with two pairs of 660 nm and 940 nm light emitting diodes and six photodiodes. It was demonstrated how this combination of optoelectronic devices results in a 2-by-4 array of PPG sensors with capability to simultaneously measure PPG signals with multiple photodiodes. It was concluded that further work must be completed to evaluate the possibility of this sensor array to be used for tissue oximetry.
| Type: | Proceedings paper |
|---|---|
| Title: | 3D Printed Flexible Photoplethysmography Sensor Array for Tissue Oximetry |
| Event: | 2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) |
| Dates: | 10 Jul 2022 - 13 Jul 2022 |
| ISBN-13: | 978-1-6654-4273-2 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/FLEPS53764.2022.9781543 |
| Publisher version: | https://doi.org/10.1109/FLEPS53764.2022.9781543 |
| 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: | Flexible, 3D printing, photoplethysmography, oximetry |
| UCL classification: | 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 Mechanical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10155803 |
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