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Healthcare Professionals

Micra 

Transcatheter Pacing System for Bradyarrhythmia Management

  • Image of gloved hand holding a Micra

Micra Transcatheter Pacing System

Meet Micra

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.

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

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

Pacing capsule specifications

Image of proximal retrieval feature

Anode and cathode

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

Micra Pacing Capsule with FlexFix™ Nitinol Tines

Micra Delivery Catheter 

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

Micra Delivery Catheter

implant-procedure

Delivery catheter provides visual feedback when adequate tip pressure has been achieved and retracts during deployment.6

implant-procedure

Linear one-step deployment facilitates consistent capsule placement, no torque required.6

Micra Introducer

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

Micra Introducer

DEVICE LIFE-CYCLE MANAGEMENT OPTIONS DESIGNED TO PROVIDE CLINICIANS 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.
1

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

2

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

3

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

4

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

5

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.

6

Medtronic Micra Implant Manual, April, 2015

7

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.

8

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

9

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