PF ablation catheters

Sphere-9™ catheter

<p>The Sphere-9™ mapping and ablation catheter provides mapping and dual-energy ablation options including radiofrequency (RF) and pulsed field (PF) energies.</p>

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Features

All-in-one: map | ablate | validate

The novel Sphere-9™ catheter is an all-in-one tool enabling physicians to map, ablate, and validate with a single transeptal, zero-exchange workflow.

The compressible lattice tip with wide-area focal design and close unipolar mapping capability offers proven safety, efficacy, and superior efficiency1 to promote confidence in procedural outcomes.

This is an image of the Sphere-9™ catheter with five callouts.

Sphere-9™ catheter at a glance

  1. 9 mm, compressible lattice ablation electrode
  2. 9 mini electrodes with integrated thermocouples
  3. Central reference electrode
  4. Low flow, central irrigation
  5. 8 Fr, bi-directional shaft
Download catheter spec sheet (open in new window)

Map

Create high-density maps in less than 11 minutes with greater than 5000 points.2

Close-unipolar mapping provides the benefits of bipolar and unipolar electrograms3 while avoiding the challenges of each.

  • Maintain wavefront morphology
  • Reduce far-field potentials
  • Provide high fidelity and discreate EGMs

Ablate

Experience superior efficiency1 with a wide-area focal tip and dual-energy ablation capabilities; RF and PF.

Wide-area focal lattice ablation electrode

  • 10 times larger effective surface area4
  • Compressible tip for conformability and stability4,5
  1. THERMOCOOL SMARTTOUCH™* SF
  2. Sphere-9™
This is an image comparing the size of the THERMOCOOL SMARTTOUCH© and Sphere-9™ catheters.

RF and PF ablation options

  • 4–5 seconds energy application time
  • PF lesions greater than 17 mm wide6
  • RF lesions greater than19 mm wide7

Validate

Conveniently remap or effortlessly proceed from ablation to validation without switching catheters.

An integrated stimulator supports exclusive pace modes specifically designed for the Sphere-9™ catheter.

Quickly confirm block using the propagation arrow and additional pacing features.

SPHERE Per-AF randomized IDE clinical trial1

The SPHERE Per-AF trial compared the Sphere-9™ catheter with Affera™ mapping and ablation system to the THERMOCOOL SMARTTOUCH™* SF catheter with CARTO™* mapping system for the treatment of persistent AF.

  • 1.4% primary safety events versus 1% when using STSF
  • 74% primary effectiveness rate
  • 80% effectiveness in more than 10 cases8
  • 25+ minutes saved per procedure
View SPHERE Per-AF data (open in new window)

Ordering information

Item number Description
AFR-00001 Sphere-9™ mapping and ablation catheter

Resources

Related links

Educational resources on Medtronic Academy

Access detailed product information, including spec sheets, videos, and presentations.

Visit Medtronic Academy (open in new window)

™* Third-party brands are trademarks of their respective owners.

  1. Anter E, Mansour M, Nair DG, et al. Dual-energy lattice-tip ablation system for persistent atrial fibrillation: a randomized trial. Nat Med. 2024;30(8):2303–2310. doi: 10.1038/s41591-024-03022-6.
  2. Reddy VY, Anter E, Rackauskas G, et al. Lattice-tip focal ablation catheter that toggles between radiofrequency and pulsed field energy to treat atrial fibrillation: a first-in-human trial. Cir Arrhythm Electrophysiol. 2020;13(6):e008718. doi: 10.1161/CIRCEP.120.008718.
  3. De Bakker JMT. Electrogram recording and analyzing techniques to optimize selection of target sites for ablation of cardiac arrhythmias. Pacing Clin Electrophysiol. 2019;42(12):1503–1516. doi: 10.1111/pace.13817.
  4. Anter E, Neužil P, Rackauskas G, et al. A lattice-tip temperature-controlled radiofrequency ablation catheter for wide thermal lesions: first-in-human experience with atrial fibrillation. JACC Clin Electrophysiol. 2020;6(5):507–519. doi: 10.1016/j.jacep.2019.12.015.
  5. Shapira-Daniels A, Barkagan M, Yavin H, et al. Novel irrigated temperature-controlled lattice ablation catheter for ventricular ablation: a preclinical multimodality biophysical characterization. Circ Arrhythm Electrophysiol. 2019;12(11):e007661. doi: 10.1161/CIRCEP.119.007661.
  6. Yavin HD, Higuchi K, Sroubek J, Younis A, Zilberman I, Anter E. Pulsed-field ablation in ventricular myocardium using a focal catheter: The impact of application repetition on lesion dimensions. Circ Arrhythm Electrophysiol. 2021;(9):e010375. doi: 10.1161/CIRCEP.121.010375.
  7. Barkagan M, Leshem E, Rottmann M, Sroubek J, Shapira-Daniels A, Anter E. Expandable lattice electrode ablation catheter: a novel radiofrequency platform allowing high current at low density for rapid, titratable, and durable lesions. Circ Arrhythm Electrophysiol. 2019;12(4):e007090. doi: 10.1161/CIRCEP.118.007090.
  8. Nair D. Operator learning curve with a novel dual-energy lattice-tip ablation system. Oral presentation at APHRS 2024, Sydney, Australia. September 28, 2024.