Medtronic Covidien ClosureFast RFG3 Generator

Endovascular Radiofrequency vessel and tissue coagulation using ClosureFast Technology. The ClosureFast catheter heats a 7 or 3 cm vein segment in one 20-second interval.

The system’s controlled feedback mechanism monitors intravascular heat parameters in real time to automatically regulate therapeutic power.

The heat provided by the catheter shrinks and collapses the vein, over time creating a fibrotic seal and occluding the vessel.