Micra Pacemakers Transcatheter Pacing Systems for Bradycardia (Slow Heart Rate)

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Meet micra, our leadless pacemaker

Micra™ is the world's smallest pacemaker.1 Unlike most pacemakers that are placed in a patient's chest with leads running to the heart, Micra is a leadless pacemaker because it's implanted directly into the heart.

  • Less invasive — Micra is placed in the heart via a vein in the leg. The procedure requires no chest incision and, unlike conventional pacemakers, does not create a scar or bump under the skin.
  • Self-contained — Micra is completely self-contained within the heart. It eliminates potential medical complications arising from a chest incision and from wires running from a conventional pacemaker into the heart.
  • Small — Micra is 93% smaller than conventional pacemakers, about the size of a large vitamin capsule.2

For most patients, the Micra design translates to fewer medical complications and fewer post-implant activity restrictions. 

Patient Testimonials

Watch the video to hear George's Micra story.
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See how Jean is able to live a fulfilling life with her Micra pacemaker.
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Watch the video to see how Micra VR allows singer Stephen to live his life without worry.
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Animation displaying a patient quote

Device Features

The Micra leadless pacemaker includes time-tested, valuable features, including:

  • Permitting you to safely undergo magnetic resonance imaging (MRI), a diagnostic tool doctors use to "see" inside the body.
  • Adjusting your heart rate automatically by sensing changes in your body related to your activity level and adjusting your heart rate accordingly.
  • A battery that typically lasts between 8 and 13 years.3,4

Watch the video to see how Medtronic has miniaturized technology.
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Watch this video clip for details on the Micra VR design journey.
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Is Micra for Every Patient?

Micra is intended for patients with specific pacing needs. Talk to your doctor about the benefits and risks of Micra.

How Is Micra Placed into My Heart?

Are MRI Scans OK with My Micra?

Will Items Containing Magnets Affect My Micra?

Is it Safe to Go through an Airport Metal Detector?

Are Household Appliances Safe to Use?

Can I Exercise or Resume My Regular Activities?

Does Micra Last Forever?

What Happens When the Micra Battery Runs Low?

How Often Will I Need to Visit the Doctor after Micra Is Implanted?

Find an Experienced Micra Doctor

Enter your zip code below to find a doctor near you who is experienced in Micra leadless pacing therapy.

Contact Information

If you have any questions about your device, contact Medtronic Patient Services.


7 a.m.–6 p.m. CT, Monday–Friday

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Information on this site should not be used as a substitute for talking with your doctor. Always talk with your doctor about diagnosis and treatment information.



Nippoldt D, Whiting J. Micra Transcatheter Pacing System: Device Volume Characterization Comparison. November 2014. Medtronic data on file.


Williams E, Whiting J. Micra Transcatheter Pacing System Size Comparison. November 2014. Medtronic data on file.


Medtronic Micra™ AV MC1AVR1 Device Manual. January 2020.


Pender J, Whiting J. Micra AV Battery Longevity. January 2020. Medtronic data on file.


Medtronic Micra MC1VR01 Clinician Manual. November 2014.


Reynolds D, Duray GZ, Omar R, et al. A Leadless Intracardiac Transcatheter Pacing System. N Engl J Med. February 11, 2016;374(6):533-541.