An elastic material The endoscopic device autonomous locomotion through the body cavity to move a predetermined direction is possible, and extending between two front end (2) rear portion (3) includes a tubular body made of a (1), the ends, operated pneumatically for mounting and alternately to temporarily end the wall of the body cavity in synchronism with the extension and retraction in the axial direction corresponding to the tubular body each include fastening means is a (4). It is distributed along its length, the tubular body incorporates a (6,7) reinforcing structure easily bent in the axial direction has a substantially rigid radially. The wall of the tubular body is formed (9) by the outer layer (10) and the inner layer superimposed reinforcing structure is incorporated between them. I want to be able to discharge the air that are formed on the outer layer (11, 12, 13) through opening, entering by the case between the inner and outer layers from the interior of the tubular body. [Selection Figure] Figure 3a予め決められた移動方向に体腔内を通る自律移動運動が可能な内視鏡装置であって、2つの、前端部(2)と後端部(3)との間に延在する弾性材料で作られた管状体(1)を含み、端部は、管状体の対応する軸方向の伸長および収縮に同期して体腔の壁に端部を一時的におよび交互に取付けるための空気式に作動される固定手段(4)をそれぞれ含む。管状体は、その長さに沿って分布され、半径方向に実質的に剛性であり軸方向に曲がり易い補強構造体(6、7)を組み込む。管状体の壁は、重ねられた内側層(9)と外側層(10)によって形成され、補強構造体はそれらの間に組み込まれる。貫通開口(11、12、13)が外側層に形成されて、管状体の内部から内側層と外側層との間に場合により侵入する空気を外部に排出できるようにする。【選択図】 図3a
