Medical device for treating airways and related methods of use

A medical device for treating an airway of a patient. The medical device may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween. The medical device may also include a plurality of conductive elements disposed on a surface of the elongate tubular member. In some embodiments, at least one of the plurality of conductive elements may be disposed distally of another of the plurality of conductive elements. In addition, each of the plurality of conductive elements may be electrically coupled to a surface of the lumen. The medical device may also include a piston movably disposed within the lumen. The piston may include a distal portion configured to make electrical contact with one or more of the plurality of conductive elements.