The Cardinal Health Shiley Inner Cannula is a disposable, fenestrated inner cannula designed to maintain airway patency and reduce ventilator-associated pneumonia in mechanically ventilated patients requiring suctioning or with compromised airways. Its disposable design and fenestration facilitate thorough suctioning of secretions, while its size and packaging ensure ease of use and storage. The inner cannula is indicated for use with compatible tracheal tubes and should be replaced every 24-48 hours.