DiamondTemp™ Ablation System
with RealTemp™

Real-time, Temperature-controlled Ablation 

As the only open-irrigated RF catheter with industrial diamonds to optimize power based on tissue surface temperature, the DiamondTemp ablation system (DTA) with RealTemp is safe and effective, and has demonstrated procedural efficiencies compared to contact force-sensing RF.1

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Overview

The Next Generation of RF Ablation

Product Features

Exclusive Diamond-enabled  Tip Cooling

The 8.5 Fr ablation catheter includes industrial diamonds, enabling rapid cooling due to their high thermal diffusivity property. The catheter tip is comprised of platinum-iridium and diamond components. A network of chemical vapor deposit (CVD) industrial diamonds acts as heat-shunting material.

  1. Distal diamond
  2. Center diamond
  3. Proximal diamond

Illustration of the inside of DiamondTemp ablation system catheter with callouts

Exclusive diamond shunt network enables rapid catheter tip cooling and a low-flow irrigation rate of 8 ml/min.2

  • Thermal energy transfer is 200–400x faster with CVD diamond versus platinum-iridium.3,4
  • Extremely high thermal diffusivity allows quick conduction of thermal energy through the diamond shunt network, enabling a low-flow irrigation rate and EGM signal clarity.2

Real-time Temperature Sensing Technology

Temperature provides direct feedback on lesion creation. Irreversible tissue damage is created at temperatures > 50° C.6

  • The DiamondTemp ablation system runs in temperature control mode.
  • RealTemp drives thermocouple readings by the generator 50 times per section and automatically adjusts the power to the ablation set temperature.

DiamondTemp ablation system catheter on dark blue gradient background

Precise Location Guidance with Localized EGMs

A high-resolution electrode (HRE) at the catheter tip allows for the recording of highly localized signals at the center of ablation with minimal far-field artifact.2

Conventional RF catheter on blue background

Conventional Electrodes

Bipolar mapping/pacing

DiamondTemp ablation system catheter and electrodes on blue background

DiamondTemp
Hi-res Electrodes

Bipolar mapping/pacing

Clinical Data

Diamond-AF Clinical Trial1

Comparing the DiamondTemp ablation system versus a contact-force sensing ablation system (CF-RF).

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System Specifications

The 8.5 Fr open-irrigated catheter features a 4.1mm tip segment segment consisting of 6 externally placed temperature-sensing thermocouples, dual composite tip electrode, 2 ring electrodes, and 6 irrigation ports.

Includes customized offerings:

  • Small and large curve configurations
  • Unidirectional and bidirectional models

  1. 2.0 mm
  2. 3.5 mm
  3. 4.1 mm
  4. 3x Distal Thermocouples
  5. 6x Irrigation Ports 
  6. Distal RF Electrode — 0.6 mm
  7. Distal Diamond — 0.5 mm
  8. Proximal RF Electrode — 3.0 mm
  9. 3x Proximal Thermocouples
10. Proximal Diamond
11. Distal Ring Electrode
12. Proximal Ring Electrode

DiamondTemp ablation system catheter tip detail with callouts

Additional Resources

Resources On

Medtronic

Academy

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

Visit Medtronic Academy

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References

1

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. Published online January 27, 2021.

2

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

3

Brown A, Marco S. Introduction to Heat Transfer. 3rd ed. McGraw Hill; 1958.

4

Eckert ERG, Drake RM. Heat and Mass Transfer. Cited in: Holman JP. Heat Transfer. 9th ed. McGraw Hill; 2002.

5

Nath S, DiMarco JP, Haines DE. Basic aspects of radiofrequency catheter ablation. J Cardiovasc Electrophysiol. October 1994;5(10):863-876.