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 15mm 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 for use to bypass upper airway obstructions, provide long term ventilation, support and/or manage tracheal/bronchial secretions.