What is the following device?

What is the following device?

A device designed to facilitate the blind intubation of a patient. It consists of a cuffed double-lumen tube with one blind end. Inflation of the cuff allows the device to function as an endotracheal tube and closes off the esophagus, allowing ventilation and preventing reflux of gastric contents.
A . Nasal Gastric Tube
B . Dual Lumen Airway
C . Endothracheal Tube
D . Non Rebreather

Answer: B

Explanation:

This device is also known as a Combi-Tube