Device aims to detect and monitor blood loss

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Researchers at the University of Arkansas and University of Arkansas for Medical Sciences are developing a wearable device to assist with the early detection and monitoring of internal and external bleeding.

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According to U of A, haemorrhagic shock is currently the leading cause of preventable death in casualty care settings but existing methods often fail to detect blood loss until the onset of shock, thereby making early detection and management of bleeding-related conditions critical to improving survival. 

The team is designing a mobile device that can detect blood pressure waveforms, which correlate with the volume of blood within the blood vessels (the ‘intravascular volume’) and can be used to determine if blood volume is falling due to haemorrhaging.  

This will enable first responders and hospital staff to get more accurate readings earlier and respond with better timed and more precisely calibrated care. 

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The principal investigator on the four-year award is associate professor of biomedical engineering at the U of A, Morten Jensen, who will be joined by Jingxian Wu, a U of A professor of electrical engineering, and Robert Saunders, an associate department head of electrical engineering and computer science.

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blood loss