ENDOSCOPIC DEVICE INSERTABLE INTO A BODY CAVITY AND MOVABLE IN A PREDETERMINED DIRECTION, AND METHOD OF MOVING THE ENDOSCOPIC DEVICE IN THE BODY CAVITY

摘要

In an endoscopic device insertable into a body cavity attachable elements are moved over one another to move forwardly of each other and to leave each other behind, and to move along different paths so as not to be attached to the same areas of a wall of the body cavity.