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373 The world’s smallest pacemaker is injectable and powered by light

Engadget
Lawrence Bonk @ Engadget · 04/03/2025 11:33 EDT

The world’s smallest pacemaker is injectable and powered by light

Engineers at Northwestern University have developed the world’s smallest pacemaker. It’s so small, as a matter of fact, that it fits inside the tip of a syringe. This means that it’s injectable, so patients could potentially avoid a painful surgery.
It safely dissolves into the bloodstream after a time, so it’s a temporary solution. It’s designed for folks who need heart help on a short-term basis, like newborn babies with congenital defects. However, it can work with hearts of all sizes.

It’s also powered

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