Micra Transcatheter Pacing System for
Bradyarrhythmia Management

The miniaturized Micra™ transcatheter pacing system (TPS) is the world’s smallest pacemaker,1 delivered percutaneously via a minimally invasive approach, directly into the right ventricle and does not require the use of leads.

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Meet Micra

  • >99% implant success rate2,3
  • 63% fewer major complications than traditional pacemakers3

View animation of Micra implant procedure. 03:33

More Micra Videos

Learn about the Micra design journey. - (02:45)

See how we miniaturized technology. - (00:30)

Watch how Micra allows 92-year-old Roy to stay busy and active. - (01:41)

Watch how Micra allows singer-songwriter Stephen to live without worry. - (02:28)

Product Details

Micra Pacing Capsule

  • 93% smaller than conventional pacemakers4
  • Ultra low-power circuit design delivers an estimated average 12-year battery longevity.2,5
  • MRI SureScan™ technology allows the patient to be safely scanned using either a 1.5T or 3T full body MRI.2
Proximal retrieval feature callout
Anode and cathode callouts

FlexFix™ Nitinol Tines

  • Provide atraumatic and secure device placement
  • Two tines have 15 times the holding force necessary to hold the device in place7
  • Design minimizes tissue trauma during deployment, repositioning, and retrieval8
  • Optimal electrode tissue interface allows for low and stable chronic thresholds9
Close-up view of tines

Micra Delivery Catheter

  • 105-cm-long catheter system with a handle that controls deflection and deployment of the Micra pacing capsule


Catheter system with callouts
  • Delivery catheter provides visual feedback when adequate tip pressure has been achieved and retracts during deployment.6
X-ray of catheter close-up showing visual markers
  • Linear one-step deployment facilitates consistent capsule placement, no torque required.6
3-step sequence demonstrating consistent capsule placement

Micra Introducer

  • Lubricious hydrophilic coating facilitates smooth vessel entry 
  • 23 Fr inner diameter (27 Fr outer diameter)
  • Silicone-oil-coated dilator tip


Micra Introducer product shot

Device Life-Cycle Management

Device life-cycle management options are designed to provide clinicians with options to manage their Micra patients.

  • Micra can be turned OFF at the end of service and additional device (transcatheter or transvenous) can be added.
  • The Micra design also incorporates a proximal retrieval feature to enable acute retrieval.

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Educational Resources on Medtronic Academy

Access interactive courses, videos, and educational resources to extend your learning on Micra.

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


Reynolds DW, Duray GZ, Omar R, et al. A Leadless Intracardiac Transcatheter Pacing System. N Engl J Med. Published online November 9, 2015.


El-Chami M, et al. Leadless Pacemaker Implant in Patients with Pre-Existing Infections: Results from the Micra Post-Approval Registry. Presented at HRS May 2018. Boston, MA


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


Duray GZ. Ritter P, el-Chami M, et al. Long-term performance of a transcatheter pacing system: 12-Month results from the Micra Transcatheter Pacing Study. Heart Rhythm. Published online February 10, 2017.


Medtronic Micra Implant Manual, April, 2015


Eggen M, Grubac V, Bonner M. Design and Evaluation of a Novel Fixation Mechanism for a Transcatheter Pacemaker. IEEE Trans Biomed Eng. September 2015;62(9):2316-2323.


Eggen, M. FlexFix Tine Design. April 2015. Medtronic Data on File.


Bonner M, et al. Pacing Clin Electrophysiol. 2015;38:1248-1259.