What changes in material composition and performance may occur when a video laryngoscope is exposed to disinfectants over an extended period?
Release date:
2026-05-15
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, these disinfectants may also promote oxidation and rusting, shortening the service life of such parts. Although alcohol‑based disinfectants offer effective sterilization with minimal irritation, repeated wiping can degrade the lens coating, reducing light transmission and compromising image clarity, leading to blurriness or dimming. Moreover, highly oxidizing disinfectants can penetrate inside the device, corroding electronic circuits and solder joints, causing unstable signal transmission, image flickering or stuttering, and even preventing the device from powering on properly. Additionally, excessive use of lubricants in conjunction with disinfection may make the laryngoscope blade less stable within the oral cavity, compromising operational reliability. To minimize damage to video laryngoscopes caused by disinfectants, it is essential to strictly adhere to disinfection protocols, select appropriate agents based on the device’s material composition, and avoid long-term use of a single highly corrosive disinfectant. After disinfection, promptly dry the device with sterile gauze, regularly inspect its exterior and functionality, and address any abnormalities through timely repair or replacement. This ensures the device maintains reliable performance over an extended period and prolongs its service life.
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. 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 reduces structural integrity and increases the risk of equipment failure. For metal components, chlorine‑based agents can induce oxidative corrosion, shortening their service life. Although alcohol‑based disinfectants offer effective germicidal action with minimal irritation, repeated wiping may damage the lens coatings, lowering light transmission and degrading 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 make the laryngoscope blade difficult to secure within the oral cavity, compromising operational stability. To minimize damage to video laryngoscopes caused by disinfectants, it is essential to strictly adhere 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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