Medtronic Micra® Transcatheter Pacing System (TPS)

The World’s Smallest, Minimally Invasive Cardiac Pacemaker

Jersey Shore University Medical Center, part of Meridian CardioVascular Network, was the first hospital in New Jersey to implant the Micra® Transcatheter Pacing System (TPS) – the world’s smallest pacemaker – since the device gained U.S. Food and Drug Administration (FDA) approval in April 2016.

Micra TPS is a new type of heart device that treats patients with bradycardia, a common heart condition characterized by a slow or irregular heart rhythm. At fewer than 60 beats per minute, the heart is unable to pump enough oxygen-rich blood to the body during normal activity or exercise, causing dizziness, fatigue, shortness of breath or fainting spells.



At one-tenth the size of a traditional pacemaker, Micra TPS is the only leadless pacemaker approved for use in the U.S. The minimally-invasive procedure takes less than an hour, and unlike traditional pacemakers – is not visible.                                                                    

  • Less than one-tenth the size of traditional pacemakers (~1cc)   
  • Cosmetically invisible to the patient after implantation                                       
  • Comparable in size to a large vitamin
  • Weighs the same as a penny (2g)   


Comparable in size to a large vitamin, the device does not require cardiac wires (leads) or a surgical “pocket” under the skin to deliver a pacing therapy. Instead, the device is small enough to be delivered through a catheter and implanted directly into the heart with small tines, providing a safe alternative to conventional pacemakers. It also automatically adjusts pacing therapy based on a patient’s activity levels. For patients who need more than one heart device, the device has a unique feature that enables it to be permanently turned off so it can remain in the body and a new device can be implanted without risk of electrical interaction.

Minimally Invasive Procedure

Unlike traditional pacemakers, the Micra® Transcatheter Pacing System (TPS) is a miniaturized, fully self-contained pacemaker that delivers the most advanced pacing technology available to patients via a minimally invasive approach. 

  • Delivered directly into the heart through a catheter inserted in the femoral vein
  • Does not require a surgical incision or 
  • creation of a “pocket” under the skin, which eliminates any visible sign of the device and a potential source of complications
  • The Micra design incorporates a retrieval feature to enable retrieval when possible; however, the device is designed to be left in the body 

  • Is attached to the heart via small tines and delivers 
    electrical impulses that pace the heart
    through an electrode at the end of the device
  • Does not require the use of wires, known as “leads,” to deliver pacing therapy
  • Has an estimated average 12-year battery life
  • Is approved for full body MRI scans
  • Responds to patients’ activity levels by automatically adjusting therapy


Meridian CardioVascular Network

Meridian CardioVascular Network is anchored by physicians at the region's leading academic medical center, Jersey Shore University Medical Center. Jersey Shore is the only hospital in Monmouth and Ocean counties with an expert cardiac surgery program which performs more than 850 heart surgeries a year including: valve, bypass and aortic replacement.

Leading community hospitals for heart and vascular care in the network include Bayshore Community Hospital, Raritan Bay Medical Center-Old Bridge, Raritan Bay Medical Center-Perth Amboy, Riverview Medical Center, Ocean Medical Center, and Southern Ocean Medical Center. Meridian CardioVascular Network provides everything to diagnose, treat, and mend virtually all heart and vascular conditions, and the network's specialists are continuously among the first to provide remarkable treatment and surgical options.

Find a Specialist

To learn more about this new procedure and if it’s right for you, find a specialist in the Meridian CardioVascular Network online by using our Physician Directory, or call 1-800-DOCTORS.


AngioScreen - What You Learn Can Save Your Life

AngioScreen® is a revolutionary, new heart and vascular health screening being offered by Meridian Health. In 15 minutes, this simple, non-invasive screening will provide you with information about your risk for heart disease and stroke.

Learn More


    • AngioScreen - What You Learn Can Save Your Life

      AngioScreen - What You Learn Can Save Your Life

      In 15 minutes, our AngioScreen® non-invasive heart and vascular screening can provide you with important information about your risk for heart disease and stroke. Register for your AngioScreen today!

      Learn More
    • 365 Days of Heart

      365 Days of Heart

      Take the first step toward a lifetime of heart health. Visit 365 Days of Heart today and get access to cardiovascular programs, healthy tips and recipes.

      Learn More
    • Women's Heart Connection

      Women’s Heart Connection

      Join the Meridian Women's Heart Connection and get access to educational programs, screenings, and events to empower you with important information on preventing heart disease.

      Learn More