Micra leadless pacemakers

Micra

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.

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Micra VR2 and AV2 transcatheter pacing system devices
  • Smallest pacemaker — Micra is 93% smaller than conventional pacemakers, about the size of a large vitamin capsule.2
  • Less invasive — The procedure requires no chest incision and, unlike conventional pacemakers, does not create a scar or bump under the skin. 

Frequently asked questions

See answers to frequently asked questions on implantable pacemaker systems.

How is Micra placed into my heart?

Your doctor will insert a straw-like catheter into a vein in your upper thigh and use the catheter to move Micra into the right ventricle of your heart. The catheter is then removed. 

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Are MRI scans OK with my Micra?

You can undergo an MRI scan as long as patient eligibility requirements are met. Your pacemaker ID card specifies the implanted device model. If your doctor has questions about scanning eligibility, he or she should contact a Medtronic representative or Medtronic Technical Services.

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Is it safe to go through an airport metal detector?

Yes, you can safely go through airport security with this device. If you have concerns about security screening methods, show your Micra ID card, request alternative screening, and follow the instructions of the security personnel.

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Are household appliances safe to use?

Most household and hobby items are unlikely to affect your heart device when the items are in good working condition, used as intended, and the recommended distances are maintained. For items that transmit power through an antenna, follow the noted distances between the antenna and your implanted heart device. All items, regardless of distance restrictions, must be in good working condition and used as intended.3

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Can I exercise or resume my regular activities?

Most patients have no post-implant restrictions and are able to return to their usual activities. Talk to your doctor about any limitations you may have as a result of getting a Micra device, and discuss questions about specific activities.

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What happens when the Micra battery runs low?

When a new device is needed, the Micra device may be simply turned off before a new leadless or traditional pacemaker system is implanted. Your doctor will determine what is best for you.2

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Pacemaker resources

pdf Electromagnetic compatibility patient guide (.pdf)

1.7MB

pdf Micra patient brochure (.pdf)

1.8MB

pdf Life with a pacemaker brochure (.pdf)

1.3MB

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.

References

1

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

2

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

3

Answers to questions about implantable cardiac devices, Electromagnetic compatibility guide. July 2022. [11292-072022]