Design of a telemedical vest for sleep disorder diagnosis - a preliminary analysis

Jakub Bogdan Drzazga


This paper presents the components of a sleep apnea analysis device that have been evaluated for diagnosis suitability and expected difficulties. The medical background and statistics of sleep apnea are presented. Work related to the topic is then discussed. A description of the system components follows: ECG, respiratory effort, nasal flow and pulse oximetry. Problems expected with all of these measurements are then outlined both from the methodological and electronic perspective. The main difficulties identified are the necessity to maintain the exact location of the sensors on the patient's body and vulnerability of the sensors to variations of the environmental conditions. Challenges on the electronic aspect are then discussed, which are mainly caused by the need of measuring small signals (noise, interference) and compensation of the sensors’ nonlinearity. Power supply design in the context of the measurement accuracy is also considered followed by an evaluation of the impact of telemedical function presence. The paper ends with a summary and conclusions.


ADInstruments, "Equivital Starter Pack" [Online]. Available: [Accessed 23 1 2018].

American Sleep Apnea Association, "Sleep Apnea Information for Clinicians" [Online]. Available: [Accessed 17 1 2018].

Arnardottir, E., Sigurgunnarsdottir, M., Sigurdsson, G., Saevarsson, G., Hoskuldsson, S. and Gislason, T., "How to measure snoring?" Sleep Medicine, Volume 14 Supplement 1, p. 65, 12 2013.

Augustyniak, P., Przetwarzanie sygnałów elektrodiagnostycznych”, Kraków: AGH Uczelniane Wydawnictwa Naukowo-Dydaktyczne, 2001.

Bhatia, D., “Medical Informatics”, Delhi: PHI Learning Pvt. Ltd., 2015.

Blanco-Velasco, M., Weng, B. and Barner, K., "ECG signal denoising and baseline wander correction based on the empirical mode decomposition" Computers in Biology and Medicine, Volume 38, Issue 1, pp. 1-13, 2008.

Borsini, E., Blanco, M., Bosio, M., Fernando, D., Ernst, G. and Salvado, A., "“Diagnosis of sleep apnea in network” respiratory polygraphy as a decentralization strategy" Sleep Science, Volume 9 Issue 3, pp. 244-248, 2016.

Comarch Healthcare, "Comarch Healthcare NoMED" [Online]. Available: [Accessed 13 02 2018].

Comarch Healthcare, "Zdalna Opieka Kardiologiczna" [Online]. Available: [Accessed 13 02 2018].

Feng, Z. and Smith, M., "Measuring heart rate and blood oxygen levels for portable medical and wearable devices" 2014. [Online]. Available: [Accessed 18 1 2018].

George, C. F., Millar, T. W. and Kryger, M. H., "Sleep apnea and body position during sleep" Sleep, Volume 11 Issue 1, pp. 90-99, 1 11 1988.

Konno, K. and Mead, J., "Measurement of the separate volume changes of rib cage and abdomen during breathing" Journal of Applied Physiology, Volume 22 Issue 3, pp. 407-422, 3 1967.

Lee, H., Ko, H. and Lee, J., "Reflectance pulse oximetry: Practical issues and limitations" ICT Express, Volume 2 Issue 4, pp. 195-198, 12 2016.

Maimon, N. and Hanly, P. J., "Does Snoring Intensity Correlate with the Severity of Obstructive Sleep Apnea?" Journal of clinical sleep medicine, Volume 6 Issue 5, pp. 475-478, 15 10 2010.

Monahan, K., Storfer-Isser, A., Mehra, R. et al, "Triggering of nocturnal arrhythmias by sleep-disordered breathing events" Journal of the American College of Cardiology, Volume 54 Issue 19, pp. 1797-1804, 3 11 2009.

Nastałek, P., "Wykorzystanie 24-godzinnego monitorowania EKG metodą Holtera w diagnostyce i ocenie skuteczności leczenia stałym dodatnim ciśnieniem w drogach oddechowych chorych z ciężkim obturacyjnym bezdechem sennym", Kraków, 2015.

Norman, R., Ahmed, M., Walsleben, J. and Rapoport, D., "Detection of respiratory events during NPSG: Nasal cannula/pressure sensor versus thermistor" Sleep, Volume 20 Issue 12, pp. 1175-1184, 12 1997.

Philips, "Alice PDx - portable sleep diagnostic system" [Online]. Available: [Accessed 23 1 2018].

Philips, "DigiTrak XT Holter System" [Online]. Available: [Accessed 06 02 2018].

Pływaczewski, R., Brzecka, A., Bielicki, P. et al, "Zalecenia Polskiego Towarzystwa Chorób Płuc dotyczące rozpoznawania i leczenia zaburzeń oddychania w czasie snu (ZOCS) u dorosłych" Pneumonologia i Alergologia Polska, Volume 81 Issue 3, pp. 221-258, 2013.

Pro Plus, "EHO mini rehabilitacja" [Online]. Available: [Accessed 06 02 2018].

Simpson, L., Hillman, D. R. and Cooper, M. N., "High prevalence of undiagnosed obstructive sleep apnoea in the general population and methods for screening for representative controls" Sleep and Breathing, Volume 17 Issue 3, pp. 967-973, 9 2013.

Singh, J., Badr, M. S., Diebert, W., Epstein, L., Hwang, D., Karres, V., Khosla, S., Mims, K. N., Shamim-Uzzaman, A., Kirsch, D., Heald, J. L. and McCann, K., "American Academy of Sleep Medicine (AASM) Position Paper for the Use of Telemedicine for the Diagnosis and Treatment of Sleep Disorders" Journal of Clinical Sleep Medicine, Volume 11 Issue 10, pp. 1187-1198, 10 2015.

Sommermeyer, D., Zou, D., Grote, L. and Hedner, J., "Detection of Sleep Disordered Breathing and Its Central/Obstructive Character Using Nasal Cannula and Finger Pulse Oximeter" Journal of Clinical Sleep Medicine, Volume 8 Issue 5, pp. 527-533, 10 2012.

Viatom, "Checkme Lite" [Online]. Available: [Accessed 06 02 2018].

You, Z., Liu, H., Chen, J. and Ge, H., "Effect of Strain on the Electrical Resistance of Carbon Nanotube/Silicone Rubber Composites" Journal Wuhan University of Technology, Volume 26 Issue 5, pp. 812-816, 10 2011.

Young, T., Palta, M., Dempsey, J., Skatrud, J., Weber, S. and Badr, S., "The Occurrence of Sleep-Disordered Breathing among Middle-Aged Adults" The New England journal of medicine, Volume 328 Issue 17, pp. 1230-1235, 4 1993.


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