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A study published in the journal Science Translational Medicine suggests that a new smartphone app and hardware that could help measure blood pressure more accurately than existing cuff devices, as reported The Hindu Sunday.
"We targeted a different artery, the transverse palmer arch artery at the fingertip, to give us better control of the measurement," said lead author Anand Chandrasekhar, adding that "we were excited when we validated this location. Being able to use your fingertip makes our approach much easier and more accessible."
The approach uses an optical sensor on top of a force sensor, which along with other circuitry, are housed in a one centimetre-thick case attached to the back of the phone.
Users press their fingertip against the sensor unit and hold their phone at heart level.
"We were pleased to see that 90 per cent of the people trying it were able to do it easily after just one or two practice tries," Mukkamala noted.
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