Freezor Cardiac Cryoablation Catheters
Cardiac Ablation for Atrial Fibrillation
Overview
The Freezor™ family of cardiac cryoablation catheters consists of three different focal cryoablation catheters: Freezor™, Freezor™ Xtra, and Freezor™ MAX. These single-use catheters are flexible, steerable devices specifically designed for ablating cardiac tissue.
The various combinations of diameters, tip sizes, and reaches provide physicians with the flexibility they need to ablate a broad range of target cardiac arrhythmias – including atrioventricular nodal reentry tachycardia (AVNRT), accessory pathways, atrial flutter, AFib, AT, and VT. All of the catheters have the ability to record from the tip and three other recording electrodes to allow for quadrupole electrogram recording. A thermocouple is integrated into each tip for temperature monitoring.
The Freezor catheters, used in conjunction with the CryoConsole, are the only focal catheters that utilize the cryo energy source. Thanks to the cryo energy source the FreezorTM family of cardiac cryoablation catheters have specific benefits:
- Hypothermic site testing to confirm the target ablation site
- Unique catheter stability due to Cryoadhesion resulting in precise lesion creation
- Minimized incidence of thrombus formation
- Minimized risk of damage to cardiac structures
- Minimized patient discomfort
Freezor Cardiac Cryoablation Catheter
The Freezor™ is most commonly used in pediatrics.
The catheter provides the following features:
- Temperature-controlled in CryoMapping Mode
- Flow-controlled in CryoAblation Mode
Freezor XTRA Cardiac Cryoablation Catheter
The Freezor Xtra™ Cardiac Cryoablation Catheter is most commonly used for supraventricular tachycardia (SVTs) such as:
- Atrioventricular Nodal Reentry Tachycardia (AVNRT)
- Accessory Pathways
- Focal Atrial Tachycardia
The catheter provides the following features:
- Temperature-controlled in CryoMapping Mode
- Flow-controlled in CryoAblation Mode
Freezor MAX Cardiac Cryoablation Catheter
The Freezor MAX™ Cardiac Cryoablation Catheter was designed to treat atrial flutter and is used when larger lesions are required, mainly for:
- Atrial Flutter
- Right ventricular outflow tract (RVOT)
- Ventricular tachycardia (VT)
- Atrial Fibrillation (AF)
- Accessory Pathways
The catheter provides the following features:
- Flow-controlled
Relative Cooling Power Comparison
The image illustrates the relative cooling power of the Freezor™, Freezor™ Xtra, and Freezor™ MAX on thermal paper. Freezor MAX provides the greatest cooling power.
For more detailed product information about the Freezor family of Cryoablation catheters, including specs, visit Medtronic Academy.
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 medtronic.eu.