Shiley oral and nasal Rae endotracheal tubes with TaperGuard cuff. Shiley oral and nasal Rae endotracheal tubes with TaperGuard cuff feature a preformed curve design intended to reduce kinks and disconnects, maintain a patent airway, and remove the circuits and connectors from the surgical field. In addition, the Rae tube features the TaperGuard cuff technology: A low-pressure cuff that exerts 29% less pressure on the trachea. Avoiding just one aspiration could save a hospital more than $40,000. With the same preformed curve that helps remove the circuit from the surgical field, these tubes are ideal for surgical procedures where aspiration is a concern.