King LT(S)-D Supralaryngeal Airway

The King LT(S)-D is a disposable, double-lumen supralaryngeal airway used by EMS providers, anesthesia teams, and difficult-airway responders to establish a secure airway quickly when endotracheal intubation isn't practical. The added "S" designates the version with a suction channel, allowing gastric access and evacuation through a separate lumen behind the airway tube — a feature that matters in emergency and out-of-hospital settings where aspiration risk is high.

The Ambu King LT(S)-D Supralaryngeal Airway, Size 4 (KLTSD424) is color-coded red and sized for adults roughly 5 to 6 feet tall. Its curved, single-piece design seats in the hypopharynx, with proximal and distal cuffs inflated through one pilot balloon to seal both the oropharynx and esophageal inlet simultaneously. That dual-cuff seal directs ventilation to the larynx while the 17.6 mm OD tube channels air where it's needed. Because insertion is blind and requires no laryngoscopy, clinicians can place it fast under stress with minimal training.

Choosing the right size is the key decision here: King LT(S)-D sizing is driven by patient height rather than weight, and each size carries its own color code and recommended cuff inflation volume printed on the device. Using height as the guide reduces the guesswork that leads to poor seals or malposition. The single-use, latex-free construction supports infection-control protocols and eliminates reprocessing between patients.

These airways belong in code carts, ambulance airway kits, and difficult-airway bags as a reliable rescue option. Confirm you're stocking the "S" suction-channel version if your protocols call for gastric decompression, and keep multiple sizes on hand to match the range of adult patients you'll encounter.