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Authors: Akihiro Takeuchi 1 ; Kai Ishida 1 ; Yasuo Morohoshi 2 ; Toshihiro Shinbo 2 ; Minoru Hirose 2 and Noriaki Ikeda 2

Affiliations: 1 Kitasato University; Kitasato University, Japan ; 2 Kitasato University School of Medicine Kitasato; Kitasato University; Kitasato University, Japan

Keyword(s): Venous needle dislodgement (VND), Photo sensor, Light transmission, Gauze pad.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Equipment ; Biomedical Instrumentation ; Biomedical Instruments and Devices ; Biomedical Sensors ; Devices ; Health Monitoring Devices ; Human-Computer Interaction ; Physiological Computing Systems

Abstract: Accidents during hemodialysis such as a large amount of blood loss are often caused by venous needle dislodgement. To develop a bleeding sensor based on a photo sensor, we studied effects of liquids and porcine blood on light transmission through a thin gauze pad. The photo sensor consisted of an ordinary electrical circuit, a light emitting diode (lambda max = 645 nm), a photo diode, and a thin gauze pad placed between the diodes. The light transmitted through the gauze pad soaked with liquids or porcine blood was measured with a digital voltmeter. The liquids on a gauze pad, significantly increased the voltage (light transmission) from 0.33 +/- 0.004 V (SD) to 0.63 +/- 0.02 V (minimum, by reverse osmosis water) and to 0.70 +/- 0.03 V (maximum, by 50% glucose). The porcine blood significantly decreased the voltage from 0.33 V to 0.21 +/- 0.02 V in Hct 40%, to 0.27 +/- 0.02 in Hct 30%, to 0.30 +/- 0.02 V in Hct 20%. We confirmed that liquids significantly increased light transmission through the gauze pad, but porcine blood decreased light transmission. This opposite response can be used to distinguish liquids from blood on a gauze pad. (More)

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Paper citation in several formats:
Takeuchi, A.; Ishida, K.; Morohoshi, Y.; Shinbo, T.; Hirose, M. and Ikeda, N. (2010). LIGHT TRANSMISSION THROUGH GAUZE PAD SOAKED WITH BLOOD OR LIQUIDS TO DETECT VENOUS NEEDLE DISLODGEMENT. In Proceedings of the Third International Conference on Biomedical Electronics and Devices (BIOSTEC 2010) - BIODEVICES; ISBN 978-989-674-017-7; ISSN 2184-4305, SciTePress, pages 174-177. DOI: 10.5220/0002738801740177

@conference{biodevices10,
author={Akihiro Takeuchi. and Kai Ishida. and Yasuo Morohoshi. and Toshihiro Shinbo. and Minoru Hirose. and Noriaki Ikeda.},
title={LIGHT TRANSMISSION THROUGH GAUZE PAD SOAKED WITH BLOOD OR LIQUIDS TO DETECT VENOUS NEEDLE DISLODGEMENT},
booktitle={Proceedings of the Third International Conference on Biomedical Electronics and Devices (BIOSTEC 2010) - BIODEVICES},
year={2010},
pages={174-177},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002738801740177},
isbn={978-989-674-017-7},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the Third International Conference on Biomedical Electronics and Devices (BIOSTEC 2010) - BIODEVICES
TI - LIGHT TRANSMISSION THROUGH GAUZE PAD SOAKED WITH BLOOD OR LIQUIDS TO DETECT VENOUS NEEDLE DISLODGEMENT
SN - 978-989-674-017-7
IS - 2184-4305
AU - Takeuchi, A.
AU - Ishida, K.
AU - Morohoshi, Y.
AU - Shinbo, T.
AU - Hirose, M.
AU - Ikeda, N.
PY - 2010
SP - 174
EP - 177
DO - 10.5220/0002738801740177
PB - SciTePress