Biopsy and positioning of the sentinel lymph node

摘要

The present invention relates to a method and apparatus for accessing by locating the sentinel lymph nodes associated with the injury site of the patient. The damage site of the patient or in the vicinity thereof, the radiopharmaceutical is injected. Moving state of the radiation energy is detected from outside the patient's body. For sentinel lymph node, by inserting the cannula while activating the RF electrodes placed on the tip of the cannula, it can be accessed. It is possible that after the cannula is positioned adjacent with respect to sentinel lymph node and inserting a radiation detector through a cannula, to verify the adjacency of the cannula tip against the sentinel lymph node. It is possible that after the accurate placement of the sentinel lymph node for is verified, inserting the anchoring device through the cannula. The tip of the anchor device can be can be fixed to the sentinel lymph node, and functions as a positioning member at the time of surgery.