What changes in material composition and performance may occur when a video laryngoscope is exposed to disinfectants over an extended period?
Release date:
2026-05-16
As a commonly used airway management device in clinical practice, the video laryngoscope requires rigorous disinfection after each use. However, prolonged exposure to various types of disinfectants can significantly compromise its materials and core performance—issues that are often overlooked by clinical staff.
As a commonly used airway management device in clinical practice, the video laryngoscope requires thorough disinfection after each use. However, prolonged exposure to various types of disinfectants can significantly affect its materials and core performance—issues that are often overlooked by clinical staff. Chlorine‑based disinfectants, widely employed in healthcare settings, can corrode the plastic housing of video laryngoscopes over time, resulting in a roughened, dull surface and even cracking, which weakens the housing and increases the risk of equipment damage. For metal components, chlorine‑based disinfectants can also promote oxidative rusting, thereby shortening the service life of these parts. Although alcohol‑based disinfectants offer effective germicidal action with minimal irritation, repeated wiping with them may degrade the lens coatings, reducing light transmission and compromising image clarity, leading to blurriness and dimming.
In addition, highly oxidizing disinfectants may penetrate inside equipment, corroding electronic circuits and solder joints, which can lead to unstable signal transmission, resulting in image flickering, stuttering, or even failure of the device to power on properly.
Meanwhile, excessive use of lubricant in conjunction with disinfection may also make the laryngoscope blade difficult to secure within the oral cavity, compromising procedural stability. To minimize damage to video laryngoscopes caused by disinfectants, it is essential to adhere strictly to disinfection protocols, select appropriate disinfectants based on the device’s materials, and avoid prolonged use of a single highly corrosive agent. After disinfection, promptly wipe the device dry with sterile gauze, and conduct regular inspections of its appearance and performance; any abnormalities should be addressed through timely repair or replacement, ensuring the video laryngoscope maintains reliable operation over the long term and extending the equipment’s service life.
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