An integrated system providing a mechanical and chemical barrier against the spread of infected secretions into the distal trachea is disclosed. An endotracheal tube used for patient airway management and provides a means to conveniently irrigate and drain the subglottic region below the vocal cords...http://www.google.fr/patents/US5582167?utm_source=gb-gplus-shareBrevet US5582167 - Methods and apparatus for reducing tracheal infection using subglottic irrigation, drainage and servoregulation of endotracheal tube cuff pressure
Methods and apparatus for reducing tracheal infection using subglottic ...
