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A portable sensor can detect an imminent opioid overdose



The HopeBand flashes, sounds an alarm, and sends a warning text message (including the location of the wearer) when low blood oxygen levels are detected by pulse oximetry sensors. For this purpose, LED light is radiated through the skin and the light absorption is identified. The device monitors the low oxygen level for 1

0 seconds before the alarm is triggered.

"Imagine you have a friend who is always on the lookout for overdose, sure you get help," says Rashmi Kalkunte, a software engineering student at Carnegie Mellon University in Pittsburgh. "That's the goal of HopeBand."

The team was not yet able to test the device in real-world situations, but says that simulated input lab tests paint a positive image for the final application – and it hopes that it will include features that support the future Addiction aspect of opioid use and the prevention of overdoses. The HopeBand is initially distributed to opioid users via needle exchange programs for free. However, a commercialized version could go on sale between $ 16 and $ 20 – a realistic price point that can impact the lifespan of the company in the US quickly turns into a public health crisis.


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