This Real-Life Tricorder Is Aiming for Store Shelves

The XPrize winner has to clear FDA hurdles before you can buy it at Lowe’s.

DxtER’s app uses sensors attached to the user to detect illness.

Source: XPrize

The DxtER, designed to resemble the diagnostic tool from Star Trek, can identify 34 illnesses, including diabetes, atrial fibrillation, and pneumonia, using a suite of Bluetooth sensors connected to a tablet.

1.  Scan

A user opens the shoebox-size DxtER kit and launches an app on the tablet. The app talks her through which sensors to apply—chest patch, finger probe, spirometer, or combination thermometer-stethoscope—using an automated dialogue.

2.  Diagnose

Within moments of collecting data, the app returns a diagnosis or indicates that it didn’t detect any illness.

The DxtER system.
Source: XPrize


Harris, a practicing emergency room doctor and mechanical engineer, formed Basil Leaf with his siblings and friends in 2012 to compete for the Qualcomm Tricorder XPrize, awarded in 2017.


Basil Leaf won the XPrize—and $2.6 million—by most accurately diagnosing patients in trials at the University of California at San Diego.


The Harris team is prepping DxtER for the U.S. Food and Drug Administration approval process.


The XPrize Foundation has negotiated a deal with Lowe’s Cos. to put the tricorder on store shelves. Estimated retail price: $200 or less.

Next Steps

Basil Leaf is working on DxtER upgrades that will enable it to use the same hardware to diagnose as many as 75 conditions, including respiratory illnesses and a wider range of cardiac ailments. Grant Campany, senior director of the Qualcomm Tricorder XPrize, says the team’s real-world diagnostic experience gave it the winning edge. “The perspective that Basil brought to the table,” he says, “was unique.” 

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