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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

ISBN: 978-989-674-017-7

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.; Ikeda N. and (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 - Volume 1: BIODEVICES, (BIOSTEC 2010) ISBN 978-989-674-017-7, 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 - Volume 1: BIODEVICES, (BIOSTEC 2010)},
year={2010},
pages={174-177},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002738801740177},
isbn={978-989-674-017-7},
}

TY - CONF

JO - Proceedings of the Third International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2010)
TI - LIGHT TRANSMISSION THROUGH GAUZE PAD SOAKED WITH BLOOD OR LIQUIDS TO DETECT VENOUS NEEDLE DISLODGEMENT
SN - 978-989-674-017-7
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

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