University of Washington researchers have developed a smartphone app that uses sonar to monitor a user's breathing rate and discern when an opioid overdose has occurred.
The Second Chance app can track a user's breathing from up to three feet away.
The app sends inaudible sound waves from the device to users' chests, then monitors how those sound waves bounce back to the phone to identify specific breathing patterns.
The researchers asked participants to prepare their medications as they normally would, then began monitoring them before their injections to get a baseline value for their breathing rates. The participants were then monitored during the injection and for another five minutes.
The algorithm correctly identified breathing problems that foreshadow overdose 90% of the time on average.
From UW News
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Abstracts Copyright © 2019 SmithBucklin, Washington, DC, USA
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