Provides convenience of a disposable inner cannula for a wide variety of applications. Disposable design minimizes risk of cross-contamination and helps protect healthcare workers. Disposable Inner Cannula (DIC) features integral 15 mm snap-lock connector for quick, safe disposal after single use. Smooth, rounded-tip obturator facilitates insertion. Disposable Decannulation Plug (DDCP) closes the proximal end of the DCFS and DCFN to permit breathing through fenestration and upper airway. Designed to bypass upper airway obstructions, provide long term ventilation / support, and / or manage tracheal / bronchial secretions.