
Cobra 3
EMG Endotracheal Tube
Enhanced Recurrent Laryngeal Nerve Monitoring
Product Overview
Cobra 3P EMG Endotracheal Tube – Precision Redefined in Nerve Monitoring
The Cobra 3-Plate (C3P) EMG Endotracheal Tube sets a new standard in thyroid and ENT surgeries, delivering unmatched recurrent laryngeal nerve (RLN) monitoring with its patented three-plate EMG electrode design. Engineered for exceptional signal clarity, the C3P ensures continuous, real-time EMG feedback, supporting both free-run and evoked (tEMG) monitoring while maintaining the airway with minimal trauma.1
Unlike conventional EMG tubes, the Cobra 3P offers universal compatibility, seamlessly integrating with any nerve monitoring system—no adapters or extra equipment. Designed for reliability and surgical precision, C3P empowers surgeons with superior intraoperative nerve monitoring and informed surgical decisions for improved patient outcomes.
Ordering Information
Cobra 3P EMG Tube
Neuromonitoring endotracheal tube for ENT surgery
Item Code | Product Description |
---|---|
LTE7003PS-5 | Cobra 3-Plate EMG Endotracheal Tube, 6 mm |
LTE7003PM-5 | Cobra 3-Plate EMG Endotracheal Tube, 7 mm |
LTE7003PL-5 | Cobra 3-Plate EMG Endotracheal Tube, 8 mm |
*each Cobra EMG Tube includes a STIM return needle and a ground needle
Product Features

Safe & Reliable Monitoring
The Cobra 3P EMG Endotracheal Tube features a zero-profile, atraumatic electrode design, ensuring optimal vocal cord contact without increasing tube size. Building on our Dragonfly innovation, which set the standard for safe, intuitive laryngeal electrodes, it advances neuromonitoring solutions.
Unlike wire electrodes, which risk dislodgment or obstruction, the Cobra 3P’s integrated structure delivers consistent, high-quality EMG signals while preserving the airway and patient comfort.
Neurovision’s patented EMG electrodes are rigorously validated for safety, reliability, and prolonged nerve monitoring. The Cobra 3P enables continuous nerve integrity monitoring, providing real-time feedback for superior surgical precision and helping surgeons make informed intraoperative decisions.2

Interoperable Neuromonitoring
Cobra 3P innovative design is compatible with BOTH single-channel and multi-channel nerve monitoring systems.
The EMG tube redesign elongated the conductive silver ink recording plates. The modification creates the largest target area for contact with the vocal cords. Tube placement is easier and delivers more reliable EMG signals during the procedures.
High-quality EMG electrode for reliable neuromonitoring features 1.5 mm touch-proof DIN connectors with color-coded wires that identify the lateral and posterior plates.

Secure Reliable Design
Additional features of the C3P EMG Tube enhance the intraoperative neuromonitoring performance.
A high volume, low-pressure cuff, improves the air seal on the trachea.
The EMG electrodes and wire integration are hermetically sealed to prevent fluids from disrupting the EMG signal and reduce unwanted functional issues. All lead wires use a standard DIN (42802) plug for an easy and secure connection to any nerve monitoring system.
The innovative NEW design with patented technology creates a truly universal intraoperative neuromonitoring EMG tube with an enhanced IONM performance overall.
Frequently Asked Questions
The Cobra 3P EMG Endotracheal Tube is designed for intraoperative neuromonitoring (IONM) in thyroid, ENT, and head & neck surgeries where recurrent laryngeal nerve (RLN) preservation is critical. It provides real-time EMG feedback, helping surgeons protect nerve function and prevent complications like vocal cord paralysis.
1. Rea, James L. Blakely, Stephen W. Electrode for prolonged monitoring of laryngeal electromyography. US 20110071379 A1, United States Patent and Trademark Office, 24 March 2001. USPTO Database: bit.ly/3FnTT0L
2. Chiu, Peter et al.(2021) “Aortic elongation and bronchial splint for late bronchial complication after neonatal arch reconstruction.”JTCVS Techniques, Volume 8, 126 – 128. doi.org/10.1016/j.xjtc.2021.04.014
3. Hodnett, Benjamin L et al. “Superior laryngeal nerve monitoring using laryngeal surface electrodes and intraoperative neurophysiological monitoring during thyroidectomy.” Clinical anatomy (New York, N.Y.) vol. 28,4 (2015): 460-6. doi:10.1002/ca.22487 pubmed.ncbi.nlm.nih.gov/25425500/