LIGHT TRANSMISSION THROUGH GAUZE PAD SOAKED WITH BLOOD OR LIQUIDS TO DETECT VENOUS NEEDLE DISLODGEMENT

Akihiro Takeuchi, Kai Ishida, Yasuo Morohoshi, Toshihiro Shinbo, Minoru Hirose, Noriaki Ikeda

2010

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.

Paper Citation

in Harvard Style

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 - Volume 1: BIODEVICES, (BIOSTEC 2010) ISBN 978-989-674-017-7, pages 174-177. DOI: 10.5220/0002738801740177

in Bibtex Style

@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},
}

in EndNote Style

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