| 摘要 |
PROBLEM TO BE SOLVED: To provide a multistage type balloon tube used for the shortening operation of a digestive tract under an endoscope in order to facilitate the insertion of a large intestine endoscope. SOLUTION: A plurality of tubes of different diameters used with an endoscope insertion part fitted therein are formed, and the tubes with smaller diameters are slidably fitted in order into the tubes with larger diameters. The respective tubes are formed with balloon parts near the tip parts. The tube wall is provided with a fluid passage communicating with the balloon part, and the tube base end part is provided with a feeding means for feeding a fluid into the balloon part through the fluid passage. |
