Embodiments include a medical device, an apparatus, and a method. The medical device includes a tube portion shaped and sized for airway passage insertion and having at least one pathway therethrough; and a stylet of at least one shape-transforming material, configured for insertion in one of said at least one pathway; and at least one sensor carried by the tube portion and the stylet. The apparatus includes a stylet having a first end and a second end, at least a portion of the stylet including a shape-transforming material, the stylet being configured for insertion through an airway intubation structure having at least one pathway therethrough; and at least one sensor carried by the stylet in a proximity to the first end. The method includes capturing an image adjacent to an endotracheal tube proximate to an airway passage; and actuating, in response to the image, at least one shape-transformation of the endotracheal tube.