Abstract: The present invention provides methods and apparatus that allow the surgeon and the IONM specialist to continuously get a feedback on the relative proximity from the instruments to a nerve and on the health of this nerve. By having a coupling device that allows every instrument to be electrically stimulated, the surgeon, through the instruments, continuously sends a small electrical input into the patient's body and depending on the relative proximity between this electrical stimulation and a nerve, a neuromonitoring modality is recorded through electrodes placed on the patient. The characteristics of this response allow the IONM specialist to determine the health status and or location of the nerves.