PROBLEM TO BE SOLVED: To prevent that the distal end of an elongated device such as an endoscope projects from a folding-back part of a tube with easy operation.SOLUTION: A feed device 1 includes: an outer tube 12 an inner tube 17 movable along an axial direction inside the outer tube 12 a flexible tube 30 connected between the distal end of the outer tube 12 and the distal end of the inner tube 17, and folded back between the distal end of the inner tube 17 and the distal end of the outer tube 12 a holder 40 provided on the proximal end side of the inner tube 17, holding an elongated implement 90 inserted in the inner tube 17, and being able to move along the axial direction relatively to the inner tube 17 and a conversion mechanism 50 converting linear motion of the inner tube 17 along the axial direction into linear motion of the holder 40 having the same direction as it and having displacement smaller than displacement thereof.COPYRIGHT: (C)2015,JPO&INPIT【課題】簡単な操作で内視鏡等の細長い機器の遠位端がチューブの折返し部から突き出ないようにする。【解決手段】送り装置1は、外管12と、外管12に挿入され、外管12内を軸方向に沿って移動可能な内管17と、外管12の遠位端と内管17の遠位端との間に連結され、内管17の遠位端と外管12の遠位端との間において折り返された可撓性のチューブ30と、内管17の近位端側に設けられ、内管17に挿入された細長い器具90を保持し、内管17に対して相対的に軸方向に沿って移動可能なホルダー40と、軸方向に沿った内管17の直線運動をそれと同一の向きであって且つその変位よりも少ない変位のホルダー40の直線運動に変換する変換機構50と、を備える。【選択図】図1
