Assertion: cuffed endotracheal tube | /r/HasProperty | employed for many decades
Facets:
value: to prevent upper airway obstruction
type: PURPOSE
value: routinely
type: TEMPORAL
Source sentences:
text: As such the cuffed endotracheal tube has been routinely employed for many decades to prevent upper airway obstruction or to facilitate artificial ventilation of the unconscious or anesthetized patient.