A subcutaneous tunneling tool comprises an elongated shaft that may be inserted through an incision in a patient to create a subcutaneous tunnel under the patient's skin. The subcutaneous tunneling tool also comprises a guide mechanism secured to a proximal end of the elongated shaft, wherein the guide mechanism is configured to project a light beam aligned with the elongated shaft toward the elongated shaft. When at least a distal end of the elongated shaft is positioned beneath a patient's skin, the light beam is projected onto an external surface of the patient's skin, aligned with the elongated shaft such that the light beam may be used to guide the elongated shaft along a desired tunnel path.
