Tiny lung-heart 'super sensor' combines stethoscope, accelerometer: Page 2 of 2

April 30, 2020 //By Rich Pell
Tiny lung-heart 'super sensor' combines stethoscope, accelerometer
Researchers at Georgia Tech say they have developed a tiny wearable sensor chip that acts as an advanced electronic stethoscope and accelerometer in one, which records multiple mechano-acoustic signals from the lung and heart along with body movements.
recorded a "gallop" - a faint third sound after the "lub-dub" of the heartbeat that are normally elusive clues of heart failure.

The experimental device is currently battery powered and uses a second chip for signal conditioning to translate the sensor chip's signals into patterned read-outs. Three sensors or more could be inserted into a chest band that would triangulate health signals to locate their sources.

The high-resolution, quantified data produced by the chip, say the researchers, may be able to be used in future research to match to pathologies in order to identify them.

"We are working already to collect significantly more data matched with pathologies," says Ayazi. "We envision algorithms in the future that may enable a broad array of clinical readings."

Someday, say the researchers, a device may pinpoint an emerging heart valve flaw by turbulence it produces in the bloodstream or identify a cancerous lesion by faint crackling sounds in a lung. For more, see " Precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals."

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