Description

• • Polyvinyl chloride (PVC): A clear, flexible material that allows for easy passage into the airway.
  • Cuff: An inflatable balloon at the tip of the tube that creates a seal against the tracheal wall to prevent air leaks and aspiration (stomach contents, blood).
  • Pilot balloon and one-way valve: Located outside the patient, these are used to inflate or deflate the cuff.
  • Bevel: A slanted tip at the end of the tube that helps with visualization of the vocal cords during intubation.
  • Murphy’s eye: A small opening above the tip that ensures ventilation in case the main opening becomes obstructed.
  • Radiopaque line: A strip of material within the tube that makes it visible on an X-ray. 

• Cuffed vs. Uncuffed: Cuffed tubes are standard for adults, while uncuffed tubes are used for most pediatric patients.
• Reinforced: These are used when a patient is undergoing head or neck surgery to prevent the tube from bending or kinking.
• Size: The internal diameter is measured in millimeters, with sizes typically ranging from 2.02.0 2.0 mm to 12.012.0 12.0
  mm. The appropriate size depends on factors like the patient’s height and weight.