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Sensors 2014, 14(11), 21770-21790; doi:10.3390/s141121770

An Improved Flexible Telemetry System to Autonomously Monitor Sub-Bandage Pressure and Wound Moisture

1
School of Engineering, University of South Australia, Adelaide, SA 5001, Australia
2
Royal District Nursing Service, Adelaide, SA 5035, Australia
3
Mawson Institute, University of South Australia, Adelaide, SA 5001, Australia
*
Author to whom correspondence should be addressed.
Received: 4 September 2014 / Revised: 7 November 2014 / Accepted: 12 November 2014 / Published: 18 November 2014
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [5371 KB, uploaded 18 November 2014]   |  

Abstract

This paper presents the development of an improved mobile-based telemetric dual mode sensing system to monitor pressure and moisture levels in compression bandages and dressings used for chronic wound management. The system is fabricated on a 0.2 mm thick flexible printed circuit material, and is capable of sensing pressure and moisture at two locations simultaneously within a compression bandage and wound dressing. The sensors are calibrated to sense both parameters accurately, and the data are then transmitted wirelessly to a receiver connected to a mobile device. An error-correction algorithm is developed to compensate the degradation in measurement quality due to battery power drop over time. An Android application is also implemented to automatically receive, process, and display the sensed wound parameters. The performance of the sensing system is first validated on a mannequin limb using a compression bandage and wound dressings, and then tested on a healthy volunteer to acquire real-time performance parameters. The results obtained here suggest that this dual mode sensor can perform reliably when placed on a human limb. View Full-Text
Keywords: chronic wound management; wound sensing and monitoring; telemetric sensing; wound diagnostics; mobile-based biomedical systems chronic wound management; wound sensing and monitoring; telemetric sensing; wound diagnostics; mobile-based biomedical systems
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Mehmood, N.; Hariz, A.; Templeton, S.; Voelcker, N.H. An Improved Flexible Telemetry System to Autonomously Monitor Sub-Bandage Pressure and Wound Moisture. Sensors 2014, 14, 21770-21790.

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