An intubation device having a longitudinal, flexible frame with a leader guide positioned at the distal region of the frame and at least one restraint attached to the frame that is adapted to hold and guide a medical tube. The device facilitates the process of inserting a medical tube into a body cavity so as to achieve minimal patient discomfort. The intubation device described herein allows a medical professional to insert a nasogastric tube into a patient's nose, past the soft palate, and into the esophagus while significantly lessening the chances for error and alleviating the problems of tissue abrasion and improper insertion.