Olympus is releasing the newly FDA cleared EZDilate multi-stage endoscopic balloon dilator, a device designed predominantly to be used for esophageal dilations. The balloon is compact during the delivery stage and the soft distal tip of the device should allow for easy access through difficult strictures.
http://www.medgadget.com/2015/11/olympus-ezdilate-multi-stage-endoscopic-esophageal-balloon-dilator-unveiled-u-s.html
Olympus EZDilate Multi-Stage Endoscopic Esophageal Balloon Dilator Unveiled in U.S.