Picture a smartwatch that doesn’t just show your heart rate, but a real-time image of your heart as it beats in your chest.
can work for up to 48 hours straight — even while the user is doing something active, like exercising. And the miniature device sees just as well as a more unwieldy hospital machine, researchers report in the July 29“This is just the beginning,” says Xuanhe Zhao, a mechanical engineer at MIT. His team plans to make the patch wireless and able to interface with a user’s phone, which could then show the ultrasound signals as 3-D images.
The medical possibilities range wide. Stick a patch over a person’s heart, and the frequent images it takes could help predict heart attacks and blood clots potentially months before disaster hits, explains Aparna Singh, a biomedical engineer at Columbia University. Placed on a COVID-19 patient, the patch — which is only about the size of a quarter — could be an easy way to catch lung problems as they develop.
“This also has a huge potential to be available for developing countries,” where limited access to hospitals can make monitoring patients difficult, Singh says. The patch costs about $100 to make. One of the researchers’ next steps will be to try to make the device cheaper.
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