Ablation cannula and kit with insert

An ablation cannula kit comprising:

• a trocar;
• a cannula comprising a hollow shaft, the hollow shaft of the cannula having a proximal segment and a distal segment, wherein the distal segment comprises a distal tip substantially aligned with the hollow shaft of the cannula to permit passage of the trocar within the hollow shaft of the cannula;
• an auxiliary port extending from an exterior surface of the cannula and defining a hollow passageway into the hollow shaft of the cannula;
• an insert comprising a hollow shaft and adapted to be inserted into the hollow shaft of the cannula, the insert further comprising an auxiliary port extending from an exterior surface of the insert and defining a hollow passageway into the hollow shaft of the insert;
• and,
• a laser fiber comprising a diameter less than an interior diameter of the hollow shaft of the insert so as to permit passage of the laser fiber through the hollow shaft of the insert.