Portex Replacement Inner CannulaPortex Replacement Inner Cannula The Portex Replacement Inner Cannula is a crucial component designed for use with compatible tracheostomy tubes. It serves as a removable and disposable inner lining, promoting efficient airway management and simplified hygiene maintenance. The Portex Replacement Inner Cannulas are disposable and therefore cannot be cleaned and reused. These cannulas are compatible with Portex D. I. C. Tracheostomy Tubes such as the