Certain embodiments of the disclosure provide improved vein closure techniques, such those using radio-frequency radiation. Particular methods include cutting the tip of a catheter. Further examples include locating an incision point by placing a catheter proximate a patient's groin. Yet further examples include sequentially advancing and retracting the catheter during its insertion. Anesthetic may be instilled as the catheter is advanced and retracted. Further embodiments of the disclosure provide improved tumescence fluids, such as those including about 0.1% to about 0.2% lidocaine, about 0.1 to about 1 mg epinephrine per 500 cc of solution, and/or about 10-20 cc of an 8.4% sodium bicarbonate solution per 50 cc of solution. Yet further embodiments provide improved phlebectomy techniques, such as selecting a phlebectomy hook that has the opposite hand of a phlebologist.