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Battery-free pacemaker successfully powers the heart

A wireless, battery-free pacemaker has shown success in powering the heart in pig models, according to researchers from Rice University and the Texas Heart Institute. The pacemaker, designed by lead researcher Aydin Babakhani, gets its energy wirelessly from radio frequency radiation transmitted from an external battery pack a few centimeters away. The implantable chip is less than 4 mm wide and uses a receiving antenna, an AC-to-DC rectifier, a power management unit and a pacing activation signal. Read the story.

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