PROBLEM TO BE SOLVED: To provide a pigment spray tube for endoscopes, even when the tube itself is softened, facilitating its insertion into a plug of a forceps channel of an endoscope body and, even when repeatedly bending an endoscope distal end, eliminating the possibility of damaging the part.SOLUTION: A pigment spray tube 1 that is inserted from a plug of a forceps channel provided at an endoscope body and protruded (exposed) from a distal end of an endoscope is provided. A hollow shaft member 10 being loosely fitted to a leading portion of the tube 1 is provided, and the hollow shaft member 10 is retained by the tube 1 with a detachable stopper 14. Generally, the hollow shaft member 10 is retained by the tube 1 with the stopper 14, and the hollow shaft member 10 that is made free by removing the stopper 14 is inserted into the plug, such that even the soft tube can be smoothly inserted therein without any resistance. Further, when the hollow shaft member is pulled out from the plug, the tube is firmly tightened by elastic force of the plug.COPYRIGHT: (C)2014,JPO&INPIT【課題】チューブ自体を柔らかくしても内視鏡本体の鉗子チャンネルの口栓への挿入を容易に行えるようにするとともに、内視鏡先端部の曲りを繰り返してもその部位を傷付けるおそれをなくした内視鏡用色素散布チューブを提供する。【解決手段】内視鏡本体に設けた鉗子チャンネルの口栓から挿入し、内視鏡の先端部から突出(露出)させる色素散布チューブ1を設け、該チューブ1の先頭部にルーズに嵌合できる中空軸部材10を設け、該中空軸部材10をチューブ1に対して取り外し可能なストッパー14にて保持したことを特徴とし、普段はストッパー14で中空軸部材10をチューブ1に保持し、ストッパー14を外してフリーにした中空軸部材10を口栓に差し込んで柔らかいチューブでも抵抗なくスムーズに挿入できるようにし、しかも、中空軸部材を口栓より引き抜けば口栓の弾力によりチューブをきつく締め付け得るように構成した。【選択図】図3
