Endotracheal tube coupling adapters for facilitating collection and removal of biofilm or any debris from endotracheal tubes for disposal or laboratory testing are disclosed. The endotracheal tube coupling adapters may be adapted for use in closed suction systems. The endotracheal tube coupling adapters may be configured to remain coupled to an endotracheal tube from the time of intubation until the time of removal and to receive visualization, cleaning, and/or biofilm collection devices or members without being removed from the endotracheal tube.
