An endotracheal tube assembly includes an elongated insertion member having an endotracheal tube attachment member attached thereto, a flexible optical assembly member movably mounted to the elongated insertion member, and an endotracheal tube concentrically mounted about the flexible optical assembly member. The endotracheal tube attachment member is an elongated channel member configured to retain the flexible optical assembly member and the concentrically mounted endotracheal tube, and has an elongated slot formed therein for access to a channel of the elongated channel member to remove the endotracheal tube. A distal end of the flexible optical assembly member has an enlarged portion having a substantially barrel shape, at least a portion of which extends transversely outward from an outside surface of the endotracheal tube. The flexible optical assembly member further includes a positioning plug extending radially outward therefrom and configured to extend through a Murphy eye formed in the endotracheal tube.