The technology, details of which were published in the journal Science Translational Medicine along with a video, also includes a discovery of a more convenient measurement point.
"We were excited when we validated this location. Being able to use your fingertip makes our approach much easier and more accessible," Chandrasekhar, a doctoral student at the University of Michigan, added.
The approach uses two sensors -- an optical sensor on top of a force sensor. The sensor unit and other circuitry are housed in a one centimetre-thin case attached to the back of the phone.
Users turn on the app and press their fingertip against the sensor unit. With their finger on the unit, they hold their phone at heart level and watch their smartphone screen to ensure they are applying the correct amount of finger pressure.
"We were pleased to see that 90 percent of the people trying it were able to do it easily after just one or two practice tries," Mukkamala noted.
This invention could give patients a convenient option and keeping a log of daily measurements would produce an accurate average, discounting an occasional measurement anomaly.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)