Innovation

Family-and-friends team wins XPRIZE, bringing Star Trek’s tricorder closer to reality

Final Frontier Medical Devices’ DxtER will let consumers diagnose dozens of health conditions at home, without a physician.

By Garage Staff — April 24, 2018

When Basil Harris, a Pennsylvania emergency-room doctor, read about the Qualcomm Tricorder XPRIZE — named for the small but all-powerful diagnostic device in the original Star Trek TV series — he was hooked. The contest offered millions of dollars to the team that could come up with a non-invasive device weighing under five pounds that could accurately diagnose 13 health conditions and monitor 5 vital signs. Oh, and it needed to be usable at home by anyone, with no special training.

Harris, who had been practicing emergency medicine for seven years and also had a Ph.D. in engineering from Cornell University, found the challenge irresistible. “I think it’s a prerequisite for engineers to love science fiction,” says Harris. “And for my generation, Star Trek was big. Its optimistic view of the future is wonderful — we see humanity mature and overcome many of the challenges we face today.”

In 2017, Harris’s self-funded, family-and-friends team, Final Frontier Medical Devices, and their entry, DxtER, won the contest’s top prize of $2.6 million — beating out 312 teams from 38 countries, many of which had significant corporate and government backing. 

A five-year journey

The first thing Harris did was recruit one of his brothers, computer-network engineer George Harris. Then they brought on another brother, Constantine — like Harris, both a doctor and an engineer — and their sister, health-policy expert Julia Harris. Friends Phil Charron, an expert in user-interface design; engineer Edward Helper; and Andrew Singer, who brought financial and public-health expertise, rounded out the bench.

The team’s workshop was Harris’s house in Paoli, Pa. Their lab was the emergency department at Main Line Health's Lankenau Medical Center in Wynnewood, Pa., where Harris had patients try out prototypes to get their feedback.

It took five years of after-hours effort — with everyone continuing to work at their full-time jobs — to develop DxtER. “My kids grew up surrounded by this project,” says Harris. “They just thought it was normal to have friends and family over for endless night sessions of working on prototypes.”

From the start, Harris wanted to emulate the interactions he has with his ER patients every day. Beyond simply taking diagnostic readings, DxtER had to approach as closely as possible the kind of give and take that helps doctors make informed diagnoses.

“My kids grew up surrounded by this project. They just thought it was normal to have friends and family over for endless night sessions of working on prototypes.”

Basil Harris, ER doctor and Qualcomm Tricorder XPRIZE winner

DxtER's finger cuff measures blood oxygen, pressure, hemoglobin, white-cell count and glucose levels.

Courtesy of XPRIZE

DxtER's finger cuff measures blood oxygen, pressure, hemoglobin, white-cell count and glucose levels.

The virtual doctor will see you now

Inside the shoebox-size DxtER kit, consumers will find a tablet loaded with the team’s software and five diagnostic tools: a spirometer for testing lung function and capacity; a chest sensor that notes heart rate and rhythm; a finger cuff that records blood oxygen, blood pressure, hemoglobin, white-cell count and glucose; a urine test kit that lets you analyze and record the results using the tablet’s camera; and a thermometer and heart-and-lung microphone in the shape of an ergonomic handheld orb.

“Our tricorder is still a long way from Dr. McCoy’s,” says Harris, "but I am so proud of how far we have come in developing non-invasive devices that provide real medical-grade data."

After launching the app, a user goes through an interactive process, including watching videos featuring Dr. Harris, which gathers answers to the kinds of questions Harris would ask in the ER. The system then instructs the user to apply the different diagnostic sensors as needed, adjusting follow-up questions and instructions based on those readings.

And while the contest required entrants to accurately diagnose 13 conditions (including pneumonia, atrial fibrillation, diabetes and no health condition), DxtER can diagnose up to 34, says Harris. With upgrades, he’s confident the device will eventually be able to spot at least 75 conditions.

Inside the box: a spirometer, a chest sensor, a finger cuff, a urine test kit and a thermometer and microphone in the shape of an orb.

Courtesy of XPRIZE

Inside the box: a spirometer, a chest sensor, a finger cuff, a urine test kit and a thermometer and microphone in the shape of an orb.

Coming to a Lowe’s near you

“I can’t believe we won this thing,” says Harris. “It’s incredible.” To put the achievement in perspective, the contest’s second-prize winners were backed by Taiwan cellphone giant HTC and the Taiwanese government, with HTC producing their prototype.

Harris’s team is now at work on a commercial version of DxtER, with the Qualcomm Foundation providing support for Food & Drug Administration testing, production and marketing. The plan is to have DxtER available at Lowe’s Home Improvement stores within two years.

 

Learn more about the Final Frontier Medical Devices team and the DxtER.