PROBLEM TO BE SOLVED: To provide a tube body in which a spool adhesion part of a slave endoscope is prevented from developing a problem when it contacts an inner surface of a channel or a treatment instrument raising base and a curved rubber is prevented from lowering the insertion property when it contacts an inner surface of the channel.SOLUTION: A tube body 50 is formed of a flexible resin member in an elongated shape, the tube body 50 being insertable into a treatment instrument insertion channel 117 of the master endoscope 101 and being provided with a tube through-hole 51 into which or from which an insertion part 2 of the slave endoscope 1 can be inserted or removed. The length of the tube body 50 is configured such that when the tube body 50 is inserted into the treatment instrument insertion channel 117 of the master endoscope 101, the tube tip part 52 is disposed further distally at least from the treatment instrument raising base 120 provided in a second tip part 111 of the master endoscope 101.COPYRIGHT: (C)2016,JPO&INPIT【課題】子内視鏡の糸巻接着部がチャンネル内面或いは処置具起上台に接触して発生する不具合、及び湾曲ゴムがチャンネル内面に接触して発生する挿入性の低下等を防止するチューブ体を提供する。【解決手段】可撓性を備えた樹脂部材で細長に形作られ、親内視鏡101の処置具挿通チャンネル117内に挿入可能で、子内視鏡1の挿入部2が挿入抜去可能なチューブ貫通孔51が設けられたチューブ体50であって、チューブ体50を親内視鏡101の処置具挿通チャンネル117内に挿入した状態において、チューブ先端部52が少なくとも親内視鏡101の第2先端部111内に設けられた処置具起上台120よりも更に先端側に配置されるように長さが設定されている【選択図】図1
