DRAGONFLY EMG Electrode for Intraoperative Neuromonitoring

The ORIGINAL laryngeal ET tube electrode. Atraumatic RLN monitoring on ET tube sizes 2.5 -10 mm.

Product Overview

Dragonfly intraoperative neuromonitoring EMG electrode is universal in function and compatibility.¹ The patented design is available in 1-Channel and 2-Channel configurations to monitor RLN activity in various procedures. The adhesive surface electrode is applied to any endotracheal tube and connects to any intraoperative nerve monitoring system.

Ordering Information

Dragonfly EasyAim

Intraoperative Neuromonitoring EMG Electrode

Item Code Product Description*
LSE600MSP-5Dragonfly EasyAim 1-Channel Kit, 0.5-Ch EMG Electrode for ET Tube 2.5-5 mm
LSE600M-5Dragonfly EasyAim 1-Channel Kit, 0.5-Ch EMG Electrode for ET Tube 6-10 mm

Dragonfly 1-Channel 

Intraoperative Neuromonitoring EMG Electrode

Item Code Product Description
LSE500MS-5Dragonfly 1-Channel, EMG Electrode for ET Tube 6-7 mm
LSE500M-5Dragonfly 1-Channel, EMG Electrode for ET Tube 7.5-10 mm

Dragonfly 2-Channel 

Intraoperative Neuromonitoring EMG Electrode

Item Code Product Description
LSE500DCS-5Dragonfly 2-Channel, EMG Electrode for ET Tube 6-7.5 mm
LSE500DCL-5Dragonfly 2-Channel, EMG Electrode for ET Tube 8-9.5 mm

Dragonfly 2-Ch Kit

Intraoperative Neuromonitoring EMG Electrode With Subdermal Needles

Item Code Product Description*
DCKIT-S-5Dragonfly 2-Channel, EMG Electrode Kit for ET Tube 6-7.5 mm
DCKIT-L-5Dragonfly 2-Channel, EMG Electrode Kit for ET Tube 8-9.5 mm

*each kit includes STIM return needle and ground needle

Product Features

Neurovision Medical Products Dragonfly EMG Electrode Universal

Reliable Neuromonitoring

Dragonfly EMG electrodes enable intraoperative monitoring of the recurrent laryngeal nerve (RLN) and vagus nerve (CN X).

The patented electrode design can attach to ET tubes from 2.5 mm to 10 mm, including half sizes. Atraumatic and easily attaches to any endotracheal tube.²

Neurovision Medical Products patented the unique technology of the original laryngeal surface electrode for ET tubes.

Dragonfly has 20 years of proven efficacy and predictability in RLN monitoring during surgical procedures.

RLN Electrode for Small Airways

EasyAim Dragonfly 1-Channel Kit can scale to fit the smallest of ET Tubes.

EasyAim provides a 360° coverage of the vocal cords to reduce sensitivity to rotation.

Dragonfly allows clinicians to choose the appropriate endotracheal tube for the patient based on their age and size but functions like an integrated EMG ET tube.³ The EMG electrode is an effective recurrent laryngeal nerve integrity monitor during Thyroid surgery.⁴



Neurovision Medical Products Dragonfly EasyAim EMG Electrode
Neurovision Medical Products Dragonfly EMG Electrode

Multiple sizes, universal design

Dragonfly intraoperative neuromonitoring EMG electrodes are available in multiple sizes and three designs.

Dragonfly is flexible and easy to use. The patented design allows the EMG electrode to be applied to any ET tube (2.5 - 10 ID).

EMG electrode features depth markings to guide placement and improve positioning for reliable EMG signals.

The patented electrode is universal in function and compatibility3,5 for nerve integrity monitoring on any IONM system.

1. 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/

2. White, W. Matthew, et al. "RLN monitoring during thyroidectomy and related cervical procedures in the pediatric population." Arch of Otolaryngology Head Neck Surg. 135.1 (2009): 88-94. doi:10.1001/archoto.2008.520

3. Lawlor Claire M., Zendejas B., Baird C., Munoz-San J.C., Jennings R.W., Choi S.S. “Intraoperative Recurrent Laryngeal Nerve Monitoring During Pediatric Cardiac and Thoracic Surgery: A Mini Review.” Frontiers, 27 Nov. 2020, frontiersin.org/articles/10.3389/fped.2020.587177/full.

4. Propst, E.J., Gorodensky, J., Wasserman, J.D., Glazman, E.F., Tilis, L.A. and Wolter, N.E. (2020), "Recurrent laryngeal nerve monitoring with surface electrodes in pediatric thyroid surgery." The Laryngoscope, 130: 1583-1589. doi.org/10.1002/lary.28250

5. 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


Frequently Asked Questions

Dragonfly is a “stick-on” laryngeal surface electrode that easily attaches to a standard endotracheal tube to monitor vocal cord activity during surgical procedures where the recurrent laryngeal nerve (RLN) is at risk of injury.

Yes, Dragonfly EMG electrodes are universal by design. Available in 1-channel, 2-channel, and a .5 channel with color-coded lead wires and standard DIN (42802) connectors for universal function and compatibility on single and multi-channel IOM systems.

The "stick-on" electrode easily attaches to most ET tubes (size 2.5 mm to 10 mm).
Do not use the EMG electrode with an ET tube pre-treated with silicone or other lubricants.

The EMG function of the Dragonfly is the same as an integrated EMG ET tube. The main difference is that a surface EMG electrode is applied to the ET tube before the procedure. Scaling to fit most ET tube sizes, including half sizes and as small as a 2.5 ID ET tube.

Dragonfly electrodes deliver EMG signals on most sizes and types of ET tubes and connect to most nerve monitoring systems. For example, EasyAim (LSE600MSP) attaches to ET tube sizes 2 ID, 3 ID, 4 ID, and 5 ID.

Dragonfly is universal, allowing for safe atraumatic RLN monitoring in smaller, more difficult airways on any IOM nerve monitoring system.

Anesthesiologists can select the preferred endotracheal tube type and size best suited for the patient and procedure.

Endotracheal tube size will determine what size Dragonfly is needed. Dragonfly is available in multiple sizes and is compatible with a range of standard ET tubes. The sizing guide is as follows:

Dragonfly 1-Channel
LSE500MS fits 6 – 7 mm endotracheal tubes
LSE500M fits 7.5 - 10 mm endotracheal tubes

Dragonfly 2-Channel
LSE500DCS fits 6 – 7.5 mm endotracheal tubes
LSE500DCL fits 8 - 10 mm endotracheal tubes

Dragonfly EasyAim .5-Channel
LSE600MSP fits 2 – 5.5 mm endotracheal tubes
LSE600M fits 6 – 10 mm endotracheal tubes

EasyAim (LSE600MSP) is designed for 2.5 - 5 mm endotracheal tubes.

EasyAim is a .5-channel electrode and requires an external reference electrode (included) to create a single-channel device.

EasyAim is an EMG electrode designed for smaller-sized endotracheal tubes for patients with tiny airways.

The application is easy and the instructions for use give a step-by-step guide for proper attachment. The Dragonfly positioning stripes facilitate proper alignment during attachment.

Dragonfly is used in procedures where the recurrent laryngeal nerve (RLN) is at risk of injury, e.g., ACDF, parathyroidectomy, thyroidectomy, and skull base procedures.

The Dragonfly attaches to the endotracheal tube to easily integrate EMG monitoring on the devices that maintains an open airway during surgery.

Under normal circumstances, the Dragonfly will remain attached to the ET tube throughout the procedure. Therefore, it is essential to follow the Instructions For Use to attach the electrode and improve the overall performance.

No, Dragonfly electrodes are not made with Latex or any other potential allergens.

Dragonfly follows nerve monitoring EMG standards. The blue lead wire(s) corresponds to the electrode on the patient’s left, and the red lead wire(s) corresponds with the electrode on the patient’s right.

EasyAim electrodes will tolerate subtle rotation if needed and still maintain an EMG signal.

The 1-channel and 2-channel Dragonfly electrodes need to maintain a midline position during the procedures for a reliable EMG signal.

Rotation of the ET tube should be avoided.

With a Dragonfly securely attached to the endotracheal tube, intubation follows the current medical techniques with a Glidescope for visual confirmation of placement. Before securing the ET tube in place, connect the lead wires to the nerve monitoring system and conduct an impedance test. Once contact with the vocal cords is confirmed, secure the tube and repeat the impedance test.

Additional Products

DryTouch Intraoperative Stimulation and Suction Probe. Universal DIN and suction connection.


EMG stimulation and Frazier suction probe
Surgical Accessories, Dual-ring Wound Protector, Reduce Superficial Surgical Site Infections.


Surgical site wound protector, dual-ring, fixed height design.
Neuromonitoring EMG Stimulation Probes


Universal EMG stimulation probes. Deliver evoked EMG.