cosinuss° in Research

Our goal is to give healthcare providers the tools they need to deliver the best possible care to their patients. Thus, we are continuously developing and evaluating our sensor technology. This evolution is demonstrated in numerous studies and projects and in various use case scenarios. Our efforts range from internal studies through external collaborations with renowned universities, clinics and other companies to completely independently conducted studies that buy and use the cosinuss° technology for their purposes. This selected collection provides an insight into the results and findings from these diverse research activities.

Incinur Zellhuber, Melanie Schade, Tim Adams, Manfred Blobner, Michael Weber, Catherina A.B. Bubb. Transforming in-clinic post-operative and intermediate care with cosinuss°. Computational and Structural Biotechnology Journal, Volume 24, 630 – 638.

Lukas Boborzi, Julian Decker, Razieh Rezaei, Roman Schniepp, and Max Wuehr. Human activity recognition in a free-living environment using an ear-worn motion sensor. Sensors, 24(9):2665, 2024.

Simone Tassani, Paula Chaves, Marc Beardsley, Milica Vujovic, Juan Ramirez, Jimena Mendoza, Marta Portero-Tresserra, Miguel Angel Gonzalez-Ballester, and Davinia Herńandez-Leo. Breathing, postural stability, and psychological health: a study to explore triangular links. Frontiers in Bioengineering and Biotechnology, 12:1347939, 2024.

Seungwon Seo, Yujin Choi, and Choongwan Koo. Forecasting personal heat strain under extremely hot environments: Utilizing feature importance in machine learning. Engineering Applications of Artificial Intelligence, 133:108507, 2024.

Erika Pittella, Orlandino Testa, Luca Podesta, and Emanuele Piuzzi. An optical signal simulator for the characterization of photoplethysmographic devices. Sensors, 24(3):1008, 2024.

Farnad Nasirzadeh, Chandan Karmakar, Ahsan Habib, Kevin Benny Neelangal, Mostafa Mir, SangHyun Lee, and Tony Arnel. Continuous monitoring of body temperature for objective detection of health and safety risks in construction sites: An analysis of the accuracy and comfort of off-the-shelf wearable sensors. Heliyon, 10(6), 2024.

Yujin Choi, Seungwon Seo, Junsoo Lee, Tae Wan Kim, and Choongwan Koo. A machine learning-based forecasting model for personal maximum allowable exposure time under extremely hot environments. Sustainable Cities and Society, 101:105140, 2024.

Yujin Choi, Seungwon Seo, Taehoon Hong, and Choongwan Koo. A classification model using personal biometric characteristics to identify individuals vulnerable to an extremely hot environment. Journal of Management in Engineering, 40(2):04024001, 2024.

Maleyka Seyidova, Jasmin Henze, Arne Pelzer, and Beate Rhein. Comparison of different data augmentation techniques for improving epileptic seizure detection based on 3d acceleration, heart rate and temperature data. https://www.insticc.org/node/TechnicalProgram/biostec/2024/presentationDetails/123868

Heike Jansen, Eimo Martens, Veronika Wacker, Jannina Schaller, Anna Eichhorn, and Marion Kiechle. Telemedizinische überwachung ambulanter onkologischer patientinnen. Die Gynäkologie, pages 1–5, 2023.

Catherina AB Bubb, Michael Weber, Nadine Kretsch, Ralph Heim, Incinur Zellhuber, Sebastian Schmid, Simone M Kagerbauer, Johannes Kreuzer, Stefan J Schaller, Manfred Blobner, and Bettina Jungwirth. Wearable in-ear pulse oximetry validly measures oxygen saturation between 70% and 100%: A prospective agreement study. DIGITAL HEALTH, 9:20552076231211169, 2023. https://journals.sagepub.com/doi/full/10.1177/20552076231211169

Razan Wibowo, Viet Do, Caroline Quartucci, Daniela Koller, Hein AM Daanen, Dennis Nowak, Stephan Bose-O’Reilly, and Stefan Rakete. Effects of heat and personal protective equipment on thermal strain in healthcare workers: part b—application of wearable sensors to observe heat strain among healthcare workers under controlled conditions. International Archives of Occupational and Environmental Health, pages 1–9, 2023. https://link.springer.com/article/10.1007/s00420-023-02022-2

Eleanor L Hearn, Jack Byford, Christopher Wolfe, Cheryl Agyei, Peter D Hodkinson, Ross D Pollock, and Thomas G Smith. Measuring arterial oxygen saturation using wearable devices under varying conditions. Aerospace Medicine and Human Performance, 94(1):42–47, 2023. https://pubmed.ncbi.nlm.nih.gov/36757230/

David Benjamin Ellebrecht, Damian Gola, and Mark Kaschwich. Evaluation of a wearable in-ear sensor for temperature and heart rate monitoring: A pilot study. Journal of Medical Systems, 46(12):1–10, 2022. https://link.springer.com/article/10.1007/s10916-022-01872-6

Alexander Müller, Hannah Haneke, Valerie Kirchberger, Giulio Mastella, Michael Dommasch, Uta Merle, Oliver Heinze, Adonia Siegmann,Christoph Spinner, Alessandra Buiatti, et al. Integration of mobile sensors in a telemedicine hospital system: remote-monitoring in covid-19 patients. Journal of Public Health, 30(1):93–97, 2022. https://pubmed.ncbi.nlm.nih.gov/34667714/

Tim Adams, Sophie Wagner, Melanie Baldinger, Incinur Zellhuber, Michael Weber, Daniel Nass, and Rainer Surges. Accurate detection of heart rate using in-ear photoplethysmography in a clinical setting. Frontiers in digital health, 4, 2022. https://www.frontiersin.org/journals/digital-health/articles/10.3389/fdgth.2022.909519/full

Maritza Bustos-Lopez, Nicandro Cruz-Ram´ırez, Alejandro Guerra-Hernandez, Laura Nely Sanchez-Morales, Nancy Aracely Cruz-Ramos, and Giner Alor-Hernandez. Wearables for engagement detection in learning environments: A review. Biosensors, 12(7):509, 2022. https://pubmed.ncbi.nlm.nih.gov/35884312/

Safaa N Saud Al-Humairi and Asif Iqbal Hajamydeen. Iot-based health-care monitoring practices during covid-19: Prospects and approaches. In Healthcare Systems and Health Informatics, pages 163–185. CRC Press, 2022. https://www.taylorfrancis.com/chapters/edit/10.1201/9781003146087-13/iot-based-healthcare-monitoring-practices-covid-19-safaa-saud-al-humairi-asif-iqbal-hajamydeen

Alireza Saidi and Chantal Gauvin. Towards real-time thermal stress prediction systems for workers. Journal of Thermal Biology, page 103405, 2022. https://www.sciencedirect.com/science/article/abs/pii/S0306456522002194

David Camargo, Henning Wackerhage, and Martin Schönfelder. Validation of cosinuss° in-ear sensor to estimate energy expenditure using heart rate, acceleration, and mobile spirometry. In 25. dvs-Hochschultag· Kiel/virtuell, page 459, 2022. https://mediatum.ub.tum.de/1652992?id=1652992&change_language=en

Melanie Baldinger, Axel Heinrich, Tim Adams, Eimo Martens, Michael Dommasch, Alexander Müller, Adonia Siegmann, and Georg Schmidt. Telecovid: remote vital signs monitoring of covid-19 risk patients in home isolation with an in-ear wearable. IEEE Pervasive Computing, 20(2):58–62, 2021. https://ieeexplore.ieee.org/document/9442786

David Wurzer, Paul Spielhagen, Adonia Siegmann, Ayca Gercekcioglu, Judith Gorgass, Simone Henze, Yuron Kolar, Felix Koneberg, Sari Kukkonen, Hannah McGowan, et al. Remote monitoring of covid-19 positive high-risk patients in domestic isolation: A feasibility study. PLoS One, 16(9):e0257095, 2021. https://pubmed.ncbi.nlm.nih.gov/34559832/

Jasmin Henze, Salima Houta, Rainer Surges, Johannes Kreuzer, and Pinar Bisgin. Multimodal detection of tonic–clonic seizures based on 3d acceleration and heart rate data from an in-ear sensor. In International Conference on Pattern Recognition, pages 490–502. Springer, 2021. https://dl.acm.org/doi/abs/10.1007/978-3-030-68763-2_37

R Stroop, Ch Schoene, and Th Grau. Efficacy of an infrared radiator for hypothermia prevention in a simulated setup of entrapped vehicle accident victims. Injury, 52(9):2491–2501, 2021. https://pubmed.ncbi.nlm.nih.gov/34158160/

Tobias Röddiger, Christian Dinse, and Michael Beigl. Wearability and comfort of earables during sleep. In 2021 International Symposium on Wearable Computers, pages 150–152, 2021. https://dl.acm.org/doi/10.1145/3460421.3480432

Giovanni Polsinelli, Angelo Rodio, and Bruno Federico. Estimation of cardiovascular drift through ear temperature during prolonged steady-state cycling: a study protocol. BMJ Open Sport & Exercise Medicine, 7(1):e000907, 2021. https://bmjopensem.bmj.com/content/7/1/e000907

Likun Fang, Tobias Röddiger, Felix Schmid, and Michael Beigl. Ear-recorder: A multi-device earable data collection toolkit. In Augmented Humans Conference 2021, pages 286–288, 2021. https://dl.acm.org/doi/10.1145/3458709.3459005

Andrea Ferlini, Alessandro Montanari, Chulhong Min, Hongwei Li, Ugo Sassi, and Fahim Kawsar. In-ear ppg for vital signs. IEEE Pervasive Computing, 21(1):65–74, 2021. https://ieeexplore.ieee.org/document/9642255

Philip Storz, Sandra Wickner, Benjamin Batt, Johannes Schuh, Denise Junger, Yvonne Möller, Nisar Malek, and Christian Thies. bwhealthapp: A software system to support personalized medicine by individual monitoring of vital parameters of outpatients. In Proceedings of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2021)-Volume 5: HEALTHINF, pages 613–620. Science and Technology Publications, 2021. https://d-nb.info/1270413503/34

Clara Piris Burgos, Lea Gärtner, Miguel A Gonzalez Ballester, Jerome Noailly, Fabian Stöcker, Martin Schönfelder, Tim Adams, and Simone Tassani. In-ear accelerometer-based sensor for gait classification. IEEE Sensors Journal, 20(21):12895–12902, 2020. https://www.bisp-surf.de/Record/PU202111007747/

David Benjamin Ellebrecht, Tilmann Warns, Conny Georg B¨urk, Michael Thomaschewski, Tobias Keck, and Dirk Bausch. Quantitative intraoperative Messung der Gewebeperfusion von Nierentransplantaten mittels Indocyaningrün-Angiografie. Zentralblatt für Chirurgie – Zeitschrift für Allgemeine, Viszeral-, Thorax-und Gefäßchirurgie, 145(01):57–63, 2020. https://www.researchgate.net/publication/336101439

Kathleen G Fan, Jess Mandel, Parag Agnihotri, and Ming Tai-Seale. Remote patient monitoring technologies for predicting chronic obstructive pulmonary disease exacerbations: Review and comparison. JMIR Mhealth Uhealth, 8(5):e16147, May 2020. https://pubmed.ncbi.nlm.nih.gov/32348262/

David Benjamin Ellebrecht, Marco Horn, Moritz Pross, Tobias Keck, and Markus Kleemann. Laparoskopisches Ausschalten eines Aneurysmas der A. lienalis. Zentralblatt für Chirurgie-Zeitschrift für Allgemeine, Viszeral-, Thorax-und Gefäßchirurgie, 144(05):445–448, 2019. https://www.thieme-connect.com/products/ejournals/abstract/10.1055/a-0874-2545

Stefanie Passler, Niklas Müller, and Veit Senner. In-ear pulse rate measurement: a valid alternative to heart rate derived from electrocardiography? Sensors, 19(17):3641, 2019. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6749408/

Salima Houta, Pinar Bisgin, and Pascal Dulich. Machine learning methods for detection of epileptic seizures with long-term wearable devices. In: Eleventh International Conference on eHealth, Telemedicine, and Social Medicine, 2019. Salima Houta, Pinar Bisgin, and Pascal Dulich. Machine learning methods for detection of epileptic seizures with long-term wearable devices. In: Eleventh International Conference on eHealth, Telemedicine, and Social Medicine, 2019. https://www.thieme-connect.com/products/ejournals/abstract/10.1055/a-0874-2545

Meera Radhakrishnan and Archan Misra. Can earables support effective user engagement during weight-based gym exercises? In Proceedings of the 1st International Workshop on Earable Computing, pages 42–47, 2019. https://dl.acm.org/doi/10.1145/3345615.3361132

Denise Junger, Natividad Martinez Madrid, Nisar Malek, and Christian Thies. Open wearables mobile platform to support personalized medicine. In EMBC Workshop Telemedicine and Telemonitoring in AAL Home Environments: 41st Engineering in Medicine and Biology (EMB) Conference: July 23, 2019 Berlin, Germany: proceedings of EMBC Workshop” Telemedicine and Telemonitoring in AAL Home Environments”, pages 7–10. Hochschule Reutlingen, 2019. https://publikationen.reutlingen-university.de/id/16230/

Ali Youssef, Nicolas Caballero, and Jean-Marie Aerts. Individualised dynamic model-based monitoring of occupant’s thermal comfort foradaptive hvac controlling. 2019. https://www.researchgate.net/publication/336605460

Florian Willi Creamer. Validierung einer neuartigen Ohrsensorik. PhD thesis, Technische Universität München, 2019. https://mediatum.ub.tum.de/1369381

Jorge S Chaglla E, Numan Celik, and Wamadeva Balachandran. Measurement of core body temperature using graphene-inked infrared thermopile sensor. Sensors, 18(10):3315, 2018. https://www.mdpi.com/1424-8220/18/10/3315

Boudewijn Venema and Steffen Leonhardt. In-ear pulse oximetry in high altitude mountaineering. In 2017 13th IASTED International Conference on Biomedical Engineering (BioMed), pages 254–259. IEEE, 2017. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4819232/

Pierre Barralon and Inigo Dorronsoro. Online physical activity monitoring from head kinematics. Smart Interfaces, 2017. https://www.thinkmind.org/download.php?articleid=smart_2017_2_10_48001

Status: 23.05.2024