World's Smallest Pacemaker Available at Iowa Methodist Medical Center

Unlike most pacemakers that are placed in the patient's chest with leads running to the heart, Micra is implanted directly into the patient's heart.

What is the Micra Pacemaker?

  • Comparable in size to a large vitamin, the Micra TPS is a miniaturized heart device designed to provide the most advanced pacing technology – all while being cosmetically invisible.

  • Made by Medtronic, the Micra TPS is unlike traditional pacemakers because the device does not require cardiac wires (leads) or a surgical "pocket" under the skin to deliver a pacing therapy.

  • Designed to provide a safe alternative to conventional pacemakers – without the complications associated with leads – the Micra TPS is small enough to be delivered through a catheter and implanted directly into the heart with small tines and delivers electrical impulses that pace the heart through an electrode at the end of the device.

  • Customized to each patient's needs, the Micra TPS automatically adjusts pacing therapy based on a person's activity levels.

  • The Micra TPS is the first and only transcatheter pacing system approved for both 1.5 and 3 Tesla (T) full-body magnetic resonance imaging (MRI) scans and is designed to allow patients to be followed by their physicians and send data remotely via the Medtronic CareLink® Network.