| abstract |
An insertion apparatus includes a tubular member equipped with a propulsion power generating portion, a rotating portion for rotating the tubular member around the longitudinal axis of the tubular member, a distal end which can be slidingly moved with respect to a rotation of the tubular member rotated by the rotating portion and is equipped with an observation portion for observing a body to be examined, and a propulsion power receiving portion for receiving propulsion power generated by the propulsion power generating portion equipped in the tubular member. |