A method for visualizing the interior of a bodily passageway at a remote location, the method comprising the steps of: providing a visualization system for deployment in the bodily passageway, the visualization system comprising: an endoscope comprising a rotatable drive collar configured for rotation relative to the endoscope； a disposable drive tube comprising an elongated tube having a helical thread disposed on an exterior surface of the elongated tube, the elongated tube being configured for coaxial disposition about the endoscope； and a mount for releasably securing the disposable drive tube to the rotatable drive collar of the endoscope； wherein the helical thread has a sufficient structural integrity, and a sufficient surface profile, such that when the disposable drive tube is disposed in the bodily passageway so that the helical thread engages the interior side wall of the bodily passageway, rotation of the disposable drive tube will induce a relative movement.
