Smart glasses developed by Microsoft Research's Glabella Project employ optical pulse sensors to detect blood flow through artery locations in the wearer's head to measure blood pressure noninvasively.
Microsoft Research's Christian Holz says each device has a sensor embedded in the nose pad of the glasses, which "allows the sensor to seamlessly blend in with a socially acceptable wearable device and yet continuously sense the wearer's pulse at a key location."
Holz and Microsoft Research's Edward Wang designed a custom mainboard within the frame of regular glasses, with a coin battery keeping the device operational when fully charged.
The pulse sensors are tuned to identify the reflected signals from arterial blood at specific sites.
For individual users, continuous blood pressure monitoring could clarify the impact of factors such as exercise, while data from hundreds or thousands of users could improve medical understanding of health conditions based on daily blood pressure patterns.
From IEEE Spectrum
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