Closurefast™ radiofrequency ablation (RFA) system
Proven procedure
Lower profile
The ClosureFast™ RFA system is now available in 6F for better flexibility and easier navigation, even in tortuous veins.†,‡
Now in 6F, designed for†,‡:

Enhanced flexibility

Improved navigation

Increased kink resistance
Navigating small, tortuous veins
Dr. Edwards has been using the ClosureFast™ RFA system since its FDA approval in 2006. Hear his experience navigating smaller diameter veins with our latest lower profile 6F catheter.
Navigating recanalized veins
Steffanie Durkin shares her experience treating venous insufficiency, highlighting the benefits of the lower profile ClosureFast™ 6F catheter when advancing through tortuous, recanalized veins.
Three highly experienced ClosureFast™ RFA users share their experience with flexibility and navigation using the ClosureFast™ 6F catheter.

Karem Harth, MD,
MHS, RPVI
Cleveland, Ohio

Misaki Kiguchi, MD,
MBA, FACS
Washington, D.C.

Raghu Kolluri, MD, MS,
RVT, MSVM
Columbus, Ohio
A story of resilience
After losing a leg to phlebolymphedema, Iona’s doctor performed the ClosureFast™ procedure to help save her remaining leg and restore mobility — and hope.
“I may have lost a leg, but I gained a life.” – Iona
Results may vary. Talk to your doctor for more information.
Technology and data overview
Joe Zygmunt, Medtronic portfolio advisor, talks about the history, clinical experience, and long-term performance of the ClosureFast™ procedure.
Why catheter design matters
Lead engineer Chuanjing Xu explains how the design of the new ClosureFast™ 6F catheter impacts performance — and what makes it unique.
The value of compression detection
Engineer John Elhard describes the feedback loop between the ClosureFast™ catheter and generator and how it provides real-time information to the physician.
Patented overlap design
Engineer Sarah Thole talks about the value of the ClosureFast™ system’s patented gap-free technology for thermal ablation.

2.5 M+
patients treated.1

200+
published articles and clinical studies.2

91.9%
closure at 5 years.3
Adverse events may include hematoma, phlebitis, skin injury, nerve injury, thrombophlebitis, thrombosis, and/or pulmonary embolism.
Data are for ClosureFast™ 7F catheter.
Additional resources
TM* Third-party brands are trademarks of their respective owners. All other brands are trademarks of a Medtronic company.
† Compared to ClosureFast™ 7F catheter and Venclose™* catheter in bench testing.
‡ Bench test data on file at Medtronic. N = 15 Venclose™* catheters and 30 each ClosureFast™ 6F and 7F catheters. Bench tests may not be indicative of clinical performance.
1. ClosureFast™ procedures. Medtronic data on file. 2022.
2. Medtronic ClosureFast™ procedure publications. Medtronic data on file. 2022.
3. Proebstle TM, Alm BJ, Göckeritz O, et al. Five-year results from the prospective European multicentre cohort study on radiofrequency segmental thermal ablation for incompetent great saphenous veins. Br J Surg. 2015;102(3):212–218. doi:10.1002/bjs.9679. ClosureFast™ 7F catheter used in this study.