REDMOND, Wash. – Microsoft has acquired a patent for glasses that monitor blood pressure.
The wearable device, called Glabella, continuously monitors heart rates at three sites on the wearer’s head, and integrates optical sensors and processing, storage and communication components into the frame to passively collect physiological data about the user without the need for any interaction.
In a recent paper published by Microsoft, author Christian Holz wrote that Glabella continuously records the stream of reflected light intensities from blood flow, as well as inertial measurements of the user’s head.
The company has tested the device on four participants who wore Glabella during their regular daytime activities over five days.
“Our analysis shows a high correlation between the pulse transit times computed on our devices with participants’ heart rates and systolic blood pressure values measured using the oscillometric cuffs,” Holz wrote. “Our results indicate that Glabella has the potential to serve as a socially acceptable capture device, requiring no user input or behavior changes during regular activities, and whose continuous measurements may prove informative to physicians as well as users’ self-tracking activities.”