Endotracheal Tube Clearing Systems

Introducing two new proprietary airway clearing systems


Many patients capable of being weaned from the ventilator may fail their spontaneous breathing trial (SBT) because of increased work of breathing from a narrowed lumen. Routine endotracheal suctioning is unable to remove adherent secretions and biofilm from the walls of the ET tube, resulting in1-2:

  • A narrowed airway
  • Increased airway resistance
  • Increased work of breathing
  • Delayed extubation


ETT clearing systems from Avanos restore performance of the endotracheal tube, giving patients an improved opportunity to pass their SBT.4-5

  • Clears the ETT of tenacious secretions and biofilm1
  • Reduces airway resistance and work of breathing4
  • Restores the ETT to optimal weaning conditions1
  • Gives patient an improved opportunity to pass their SBT2-4

Click here to see how one facility reduced their average vent days by up to one day

Liberator HCS, ET Tube Clearing System

A unique airway wiping technology that can be used for 72 hours with closed suction.

  • Simplified sizing: 7-7.5 mm or 8-8.5 mm models
  • Silicone construction for soft suction catheter
  • Isolated rinsing chamber for cleaning the catheter without washing saline down the ETT
  • Radio opaque catheter
  • Versatile manifold with optional BAL bronchoscopy adapter

Restore 2

An adjunct to your closed suction system

  • Sterile, single-use device
  • Compatible with all current closed suction systems and all endotracheal tubes sizes 7.0-8.5
  • After connection, wiping procedure can be performed while the patient is being ventilated
  • Length-limited catheter avoids insertion more than 1-2 cm beyond the ETT tip on standard length tubes
  • Atraumatic catheter tip helps prevent injury if it ever contacts tracheal mucosa
  • Protective sheath helps prevent exposure to secretions

Watch our wiping simulation video

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  1. Wicker B., Schofield L., Salem G., A Five Year Study to Evaluate Cleaning Endotracheal Tube Prior to Weaning Trials, AARC Annual Meeting (Indianapolis, IN) October 4-7, 2017
  2. Schofield L., et. al., Comparison of Two Endotracheal Tube Cleaning Devices in Reducing Airway Resistance for the Mechanically Ventilated Patient, Poster, AARC (Tampa, FL) November 9, 2015.
  3. Mietto C. et. al., High-Resolution Computer Tomography in Assessing Endotracheal Tube Obstruction, Poster, SCCM Annual Meeting (San Juan, PR) January 19-23, 2013.
  4. Schofield L., The endOclear® Liberator® Cleaning Device in Decreasing Airway Resistance, AARC Annual Meeting (Indianapolis, IN) October 4-7, 2017.
  5. Wilson et. al., Increases in Endotracheal Tube Resistance are Unpredictable Relative to Duration of Intubation, Chest, 2009.
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