Geometrical Improvement of a Noninvasive Core Temperature Thermometer based on Numeric Modeling and Experiment Validation

Ming Huang, Toshiyo Tamura, Wenxi Chen, Kei-ichiro Kitamura, Tetsu Nemoto, Shigehiko Kanaya

Abstract

This paper describes the improvement of a transcutaneous core temperature thermometer by modifying the configuration, in terms of height and radius, of the thermometer using the so-called dual-heat-flux (DHF) method. The motivation of these modifications is to decrease the volume of the thermometer so as to reduce the transverse heat flow inside, in other words, to preserve the underlying assumption of the DHF method that heat flows from the inner part of human body through skin onto the thermometer longitudinally. The modification’s effect is evaluated by both numeric modeling based on finite element method and experiment. The results of simulations and experiments show that a lower-in-height and larger-in-radius configuration will improve the accuracy of the thermometer. Prototypes of 22.0 mm radius can attain satisfactory accuracy with error less than 0.5 C when heights are 8.0 mm or less.

References

  1. Baehr, E. K., Revelle, W., and Eastman, C. I., 2000. Individual differences in the phase and amplitude of the human circadian temperature rhythm: with an emphasis on morningness-eveningness, Journal of sleep research, 9(2), pp. 117-27.
  2. Bjoryatn, B., and Pallesen, S., 2009. A practical approach to circadian rhythm sleep disorders, Sleep medicine reviews, 13(1), pp. 47-60.
  3. Fox, R. H., and Solman, A. J., 1971. A new technique for monitoring the deep body temperature in man from the intact skin surface, J Physiol, 212, pp. 8-10.
  4. Gunga, H. C., Sandsund, M., Reinertsen, R. E., Sattler, F., and Koch, J., 2008. A non-invasive device to continuously determine heat strain in humans, Journal of Thermal Biology, 33(5), pp. 297-307.
  5. Huang, M., and Chen, W., 2010. Theoretical simulation of the dual-heat-flux method in deep body temperature measurements, Proceeding of IEEE EMBC 2010, 2010, pp. 561-64.
  6. Huang, M., Chen, W., Kitamura, K., Nemoto, T., and Tamura, T., 2013. Improvement of the Dual-heat-flux Method for Deep Body Temperature Measurement Based on a Finite Element Model, Proceeding of IEEE EMBC 2013, 2013, pp. 1202-05.
  7. Kimberger, O., Thell, R., Schuh, M., Koch, J., Sessler, D. I., and Kurz, A., 2009. Accuracy and precision of a novel non-invasive core thermometer,” British journal of anaesthesia. British journal of anaesthesia. 103(2), pp. 226-31.
  8. Kitamura, K., Zhu, X., Chen, W., and Nemoto, T., 2010. Development of a new method for the noninvasive measurement of deep body temperature without a heater, Medical Engineering & Physics, 32(1), pp. 1-6.
  9. NICE, 2008. http://www.nice.org.uk/CG065.
Download


Paper Citation


in Harvard Style

Huang M., Tamura T., Chen W., Kitamura K., Nemoto T. and Kanaya S. (2014). Geometrical Improvement of a Noninvasive Core Temperature Thermometer based on Numeric Modeling and Experiment Validation . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2014) ISBN 978-989-758-013-0, pages 23-27. DOI: 10.5220/0004790000230027


in Bibtex Style

@conference{biodevices14,
author={Ming Huang and Toshiyo Tamura and Wenxi Chen and Kei-ichiro Kitamura and Tetsu Nemoto and Shigehiko Kanaya},
title={Geometrical Improvement of a Noninvasive Core Temperature Thermometer based on Numeric Modeling and Experiment Validation},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2014)},
year={2014},
pages={23-27},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004790000230027},
isbn={978-989-758-013-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2014)
TI - Geometrical Improvement of a Noninvasive Core Temperature Thermometer based on Numeric Modeling and Experiment Validation
SN - 978-989-758-013-0
AU - Huang M.
AU - Tamura T.
AU - Chen W.
AU - Kitamura K.
AU - Nemoto T.
AU - Kanaya S.
PY - 2014
SP - 23
EP - 27
DO - 10.5220/0004790000230027