The only irrigated and temperature-controlled RF ablation system empowered by diamonds

DiamondTemp™ catheter merges synthetic diamonds for temperature-control with a split-tip electrode for high-resolution local electrograms, allowing a rapid and effective ablation with direct assessment of the lesion formation.

Control the temperature Optimise the power


Diamond Temp Safe claim
Image of Medtronic's Diamond temp percentage reduction in RF application time.
Diamond Temp image
Image of Medtronic's Diamond Temp percentage reduction in RF ablation duration.
Diamond Temp Effective claim on round navy blue background.
Medtronic's image of Diamond Temp percentage reduction in saline infusion.
Diamond Temp image.
Diamond Temp image

Exclusive diamond shunt network enables rapid catheter tip cooling

  • Lower irrigation flow rate is required as minimal heat is retained at the catheter tip.

Low-flow irrigation with direct measurement of tissue temperature

During the ablation process, the tissue surface temperature is measured in real-time, 50 times per second. Ablation power is automatically adjusted to match the ablation set temperature.

Diamond Temp image
Diamond temp infographic.

Precise ablation guidance with localized high resolution electrograms

  • A 1.1 mm high-resolution electrode (HRE) at the tip allows for the recording of highly localized EGMs at the center of ablation with minimal far-field artifact2

  • Align the center of ablation with the center of mapping with a close bipolar catheter tip configuration


  • 7.5 Fr, open-irrigated catheter

  • 4.1 mm catheter tip segment

  • 6 externally placed temperature-sensing thermocouples,

  • Dual composite tip electrode

  • 2 ring electrodes

  • 6 irrigation ports

Includes customized offerings:

  • Small and large curve configurations

  • Unidirectional and bidirectional models

Diamond Temp illustration.


What experts say

Interview with Prof. Verma on DiamondTemp™

Real-Time, Temperature-Controlled RF Ablation

Webinar performed by Dr. Tarvinder Dhanjal, Prof. Daniel Steven, Dr. Daniel Rodriguez and Prof. Gian Battista Chierchia






Educational Resources

Visit Medtronic Academy

for the latest DiamondTemp scientific events, procedure videos and training material

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Important reminder: This information is intended only for users in markets where Medtronic products and therapies are approved or available for use as indicated within the respective product manuals. Content on specific Medtronic products and therapies is not intended for users in markets that do not have authorisation for use.

See the device manual for detailed information regarding the instructions for use, indications, contraindications, warnings, precautions, and potential adverse events. For further information, contact your local Medtronic representative and/or consult the Medtronic website at cema.medtronic.com

For applicable products, consult instructions for use on manuals.medtronic.com. Manuals can be viewed using a current version of any major internet browser. For best results, use Adobe Acrobat® Reader with the browser.

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Kautzner J, Albenque JP, Natale A, et al. A Novel Temperature-Controlled Radiofrequency Catheter Ablation System Used to Treat Patients With Paroxysmal Atrial Fibrillation. JACC Clin Electrophysiol. March 2021;7(3):352-363.


Avila C. DiamondTemp Catheter Design. Medtronic data on file, January 2021.


Verma A, Schmidt MM, Lalonde JP, Ramirez DA, Getman MK. Assessing the Relationship of Applied Force and Ablation Duration on Lesion Size Using a Diamond Tip Catheter Ablation System. Circ Arrhythm Electrophysiol. July 2021;14(7):e009541.


Iwasawa J, et al. Temperature-controlled radiofrequency ablation for pulmonary vein isolation in patients with atrial fibrillation. J Am Coll Cardiol. 2017;70:542-553.


Neuzil P et al. The FASTR-AF Trial: Assessing the Diamond Tip temperature-controlled radiofrequency ablation catheter to treat patients with Atrial Fibrillation. Heart Rhythm, Volume 18, Issue 8, Supplement, S401, August 2021