PROBLEM TO BE SOLVED: To provide a tube which can secure a flow passage.SOLUTION: A tube 1 which is attached to a hole H connecting outside of a body surface and an organ (a lung L) inside a body includes: a body part 2 inserted into the hole H. The body part 2 includes: a hole part 21 that makes the outside of the body surface communicate with inside of the organ and a plurality of tubular bodies 3 provided inside the hole part 21. Each of the tubular bodies 3 has a through-hole 31 having an end opened inside the organ and the other end opened inside the hole H. Thereby, even when any of the plurality of the tubular bodies 3 is obstructed by viscous matters or the like, communication of the inside of the organ with the outside of the body surface is secured by the other tubular bodies 3.COPYRIGHT: (C)2014,JPO&INPIT【課題】流路を確保できるチューブを提供すること。【解決手段】体表外と体内の臓器(肺L)とを接続する孔Hに装着されるチューブ1であって、孔Hに挿入される本体部2を備え、本体部2は、体表外と臓器内とを連通させる孔部21と、孔部21内に設けられる複数の管状体3とを備え、それぞれの管状体3は、一端が臓器内に開口し、他端が孔H内に開口する貫通孔31を有する。これによれば、複数の管状体3のいずれかが粘稠物等により閉塞された場合でも、他の管状体3により、臓器内と体表外との連通を確保できる。【選択図】図1