A Wi-Fi-Based Mask-Type Laryngoscope for Telediagnosis During the COVID-19 Pandemic: Instrument Validation Study

Area of Science:

• Medical Devices
• Endoscopy
• Wireless Technology

Background:

• The COVID-19 pandemic necessitated social distancing measures.
• Wireless endoscopy offers a contactless examination method to protect healthcare workers and limit viral transmission.

Purpose of the Study:

• To introduce a novel contactless endoscopic diagnostic system utilizing a wireless endoscope designed as a mask.
• To evaluate the safety and efficacy of this mask endoscopy system.

Main Methods:

• A Wi-Fi-based contactless mask endoscopy system was developed, including a disposable endoscope and controller.
• Force sensors evaluated insertion forces in a transoral model.
• Video streaming delay was assessed via direct and Wi-Fi connections.
• The system was tested on a detailed laryngopharyngeal tract phantom.

Main Results:

• The wireless endoscopy system was successfully evaluated.
• Collision forces were below penetration risk levels (mean 296 mN).
• Wireless video streaming introduced a 0.72-second delay, which did not significantly impede use.
• An inexperienced user could orient the endoscope within approximately one minute.

Conclusions:

• The mask endoscope's articulation poses no significant risk of laryngopharyngeal wall penetration.
• Wireless video streaming is feasible and successful within range.
• The system minimizes physical contact, protecting healthcare professionals from infectious agents like SARS-CoV-2.