Figure 2 G: Right renal vein; H: the origin of the right renal vein; I: the inferior vena cava; J: the second Hem-o-lok; K: the first Hem-o-lok; L: the right renal vein is incised along the broken line for routine extraction of the right kidney. M: The renal vein is clamped at its origin in the direction of the inferior vena cava using vascular clamps or renal pedicle clamps and the renal vein is incised along the broken line. The origin of the right renal vein and partial inferior vena cava are preserved.