#$%^&*AU2007200998B220120906.pdf#####ABSTRACT A device for enhancing visualization of an esophagus when imaged by a visualization system includes a structure including material that is clearly visible when imaged by the visualization system. The structure is arranged, when inserted 5 into the esophagus, to expand so as to conform to an inner surface of the esophagus in order to enhance a visualization quality of the surface when imaged by the visualization system. A cord attached to the structure is arranged to extend out of the esophagus so as to assist a removal of the device from the esophagus. 22/02/07,16392 specification,22/3 56 48 52 ~FIG. 2A 56 60, 28 FIG. 2B 1 601 60 0 132 40
