| 摘要 |
PROBLEM TO BE SOLVED: To provide an actuator for an intraductal moving body capable of surely hauling in a duct wall and moving the intraductal moving body by repeating the inflation and deflation of an inflation/deflation member such as a rotary balloon in an appropriate shape; to provide an endoscope; and to provide a control method of the actuator for the intraductal moving body. SOLUTION: An inside balloon 54 is provided inside a locking balloon 44 and the inflation or the deflation of the locking balloon 44, a first driving balloon 42 and a second driving balloon 46 are controlled, with the inside balloon 54 inflated. The locking balloon 44 in the deflated state can thus follow the movement of the inside balloon 54 to be changed in an intended state and reinflate appropriately. Consequently, the duct wall is surely hauled in so as to move the intraductal moving body. COPYRIGHT: (C)2011,JPO&INPIT
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