A device for preventing obstruction of an endotracheal tube includes a sleeve including an open front end； an open rear end； a central cavity extending between and communicating with the front end and the rear end； and a slot extending longitudinally from the front end to the rear end to access the cavity, wherein the sleeve is configured to receive the endotracheal tube fitted within the cavity through the slot and extending through the front end and the rear end； and an anchor extending from the rear end of the sleeve, wherein the anchor includes: a top surface configured to engage the endotracheal tube； and a gripping feature disposed on the top surface configured to increase friction between the anchor and the endotracheal tube.
