An ablation cannula kit comprising: - a trocar; - a cannula (110;210) comprising a hollow shaft, the hollow shaft of the cannula (110;210) having a proximal segment and a distal segment, wherein the distal segment comprises a distal tip aligned with the hollow shaft of the cannula to permit passage of the trocar within the hollow shaft of the cannula (110;210) and configured with a tissue-gripping surface of triangularly shaped tissue-adhering irregular surfaces protruding from said tissue-gripping surface; - an auxiliary port extending from an exterior surface of the cannula (110;210) and defining a hollow passageway into the hollow shaft of the cannula (110;210); - an insert comprising a hollow shaft and adapted to be inserted into the hollow shaft of the cannula (110;210), 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 an interior portion of the hollow shaft of the insert, - characterized in that the insert, when inserted into the hollow shaft of the cannula, while the laser fiber is positioned within the hollow shaft of the insert, defines an interstitial space between an exterior surface of the insert and an interior wall of the hollow shaft of the cannula (110;210) exiting at the distal tip of the cannula (110; 210), the hollow shaft of the insert being similar in length to the hollow shaft of the cannula (110; 210) and in that the insert further comprises an auxiliary port extending from an exterior surface of the insert and defining a hollow passageway into the hollow shaft of the insert. - a trocar; - a cannula (110;210) comprising a hollow shaft, the hollow shaft of the cannula (110;210) having a proximal segment and a distal segment, wherein the distal segment comprises a distal tip aligned with the hollow shaft of the cannula to permit passage of the trocar within the hollow shaft of the cannula (110;210) and configured with a tissue-gripping surface of triangularly shaped tissue-adhering irregular surfaces protruding from said tissue-gripping surface; - an auxiliary port extending from an exterior surface of the cannula (110;210) and defining a hollow passageway into the hollow shaft of the cannula (110;210); - an insert comprising a hollow shaft and adapted to be inserted into the hollow shaft of the cannula (110;210), 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 an interior portion of the hollow shaft of the insert, - characterized in that the insert, when inserted into the hollow shaft of the cannula, while the laser fiber is positioned within the hollow shaft of the insert, defines an interstitial space between an exterior surface of the insert and an interior wall of the hollow shaft of the cannula (110;210) exiting at the distal tip of the cannula (110; 210), the hollow shaft of the insert being similar in length to the hollow shaft of the cannula (110; 210) and in that the insert further comprises an auxiliary port extending from an exterior surface of the insert and defining a hollow passageway into the hollow shaft of the insert.