A guide to universal intraoperative neuromonitoring of the RLN

Cobra 3 - EMG endotracheal tube

Advanced design and function provide surgeon's reliable Monitoring of the RLN during ENT procedures.

Meet Cobra 3-Plate, Universal EMG Tube For RLN Monitoring

Cobra 3-Plate is the newest EMG ET tube for intraoperative neuromonitoring of RLN from Neurovision Medical Products. The innovative design is universal and connects with any nerve monitoring delivering reliable EMG signals. The redesigned EMG tube, can be used as a 2-channel or 1-channel electrode, the color-coded wires identify the lateral and posterior plates and plus the size of electrode plates has been increased to improve contact with the vocal cords, accomodating longer or difficult airways and larger patients. The Cobra 3 is a standard polyvinyl chloride (PVC) endotracheal tube with integrated electrodes that are atraumatic with an almost zero-profile for which maintains the tube's true size, an easier intubation and is kink resistant.  Cobra 3  is available in ID 6 mm, 7 mm, and 8 mm.

Watch: Cobra 3 EMG Tube Setup & In-Service Training for IONM

Neurovision Medical Products now offers two quick set-up guides to support proper placement and optimal performance of the Cobra 3-Plate EMG Endotracheal Tube for recurrent laryngeal nerve (RLN) monitoring.


Watch Our Step-by-Step Video Guides:
1. Cobra 3 Intubation & Set-Up on NV+ Nerve Monitoring System – Learn how to correctly connect and position EMG electrodes for continuous intraoperative nerve monitoring (IONM).

2. Cobra 3 EMG Tube Set-Up on the NIM™ Nerve Monitoring System– A guide for proper electrode placement and system connectivity on a standard multi-channel system.


Key Highlights:

✔ Intubation guide and best practices

✔ Proper EMG Electrode Placement for accurate RLN monitoring

✔ Universal Compatibility – Works with NV+, NIM, and other IONM systems

✔ Designed for Thyroid & ENT Surgeries – Maintain the patient's airway while delivering reliable real-time EMG signals

Watch the guide that fits your setup to optimize EMG tube placement and performance.

Learn More About Intraoperative Nerve Monitoring With EMG ET Tube Electrodes:

Cobra 3-Plate is patented technology and is universal in function and compatibility. The EMG tube connects to single and multi-channel systems to add reliable EMG signals and valuable RLN nerve monitoring to the surgical plan.

Cobra 3-Plate is available in a 6, 7, and 8 mm ID (Endotracheal tube diameter).

For universal RLN monitoring of smaller airways, try a Dragonfly. The EMG surface electrode fits most ET tubes, including half sizes and as small as a 2mm ID ET tube.

EMG ET Tube

Universal EMG electrode for intraoperative neuromonitoring of the vocal cords. Monitor RLN activity while maintaining an open airway for ventilation.