The Cardinal Health Covidien Spare Inner Cannula (Size 4) is an essential accessory for tracheostomy patients, serving as a backup in case of damage or contamination of the primary cannula. Compatible with a range of tracheostomy tubes, this inner cannula is easy to insert and remove, ensuring patient comfort. Its non-kinking design facilitates optimal ventilation, while hypoallergenic materials prevent irritation. The single-use, sterile packaging safeguards against infections. Indications include replacing damaged inner cannulas or providing a spare for emergencies. Each inner cannula is sold individually and packaged in sterile blister packs, ensuring compatibility with Cardinal Health Covidien tracheostomy tubes of Size 4.