The U.S. Food & Drug Administration has approved Johnson & Johnson's device for atrial fibrillation.

The device, Varipulse, is a pulsed field ablation system.

Medical device makers such as Boston Scientific and Medtronic also have devices approved for atrial fibrillation.

The health regulator has approved the use of the J&J device for the treatment of drug-refractory paroxysmal atrial fibrillation, in which the symptoms are occasional and usually last between a few minutes and hours.