Radiofrequency Interstitial Tissue Ablation (RFA) is a minimally invasive procedure in which a thin electrode is inserted into an unresectable lesion under ultrasound or CT guidance. Electrical energy is delivered through the electrode to the lesion which produces heat within the cells surrounding the electrode. When all cells within the lesion, as well as a margin around it, are heated beyond the lethal threshold (53°C), the procedure is complete.
RFA procedure can be used in Liver, Lung, Kidney and Bone.
Each single electrode kit includes one single 17-gauge electrode, one grounding pad and an inflow and outflow tubing set.
The 1470nm laser energy is preferentially absorbed in the intracellular water of the vein wall and in the water content of blood. The irreversible photo-thermal process induced by the laser energy results in a complete occlusion of the treated vein. The lower energy level needed using the radial laser fiber significantly minimized adverse effects compared with the bare laser fiber.
1. Measures tissue temperature in or adjacent to ablation zone
2. If desired, automatically stops RF delivery based on temperature