Nerve stimulation during thyroidectomy has been described in the 1940s, where palpation of the larynx during recurrent laryngeal nerve...
Inomed ISIS IOM Nerve Monitoring System
The Inomed C2 Nerve monitor uses ALM, or Advanced Laryngeal Monitoring, to monitor the function of the recurrent laryngeal nerve. It automatically selects the optimal trace from the 4 channels located on laryngeal electrodes, and has 8 total endotracheal tube contact points. Nerve signals are acoustically and visually displayed.