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If you have a dual chamber pacemaker, there’s a constant reminder it’s there: a set of wires, called leads, that connect the two chambers snake from your heart to a pocket on your skin, and can restrict movement or cause infections. The newly FDA-approved Aveir DR, however, is inserted through a catheter with no wires or visible scar. Two small battery-like devices are placed in each chamber of the heart, syncing together wirelessly by electrical impulses. Matthew Fishler, the lead engineer who created Aveir DR, has heard that patients love the device in part because “there’s no physical visible presentation,” he says. “They feel like they don’t have one.”

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