PROBLEM TO BE SOLVED: To provide a drain tube that has a high amount of suction, can discharge a body fluid accumulated in a body in a short term, and causes little clogging in a flow path, while sufficiently securing the strength of a suction pipe part and a connection pipe part.SOLUTION: A drain tube 1 is provided, wherein a suction pipe part 2, a connection pipe part 3 and an outflow pipe part 4 are integrally formed from the tip in sequence a flow path leading from the tip to the rear end is formed in the inside thereof a partition part extending from the tip to the rear end of the connection pipe part 3 is provided in the suction pipe part 2 and the connection pipe part 3 multiple flow paths partitioned by the partition part and extending axially are formed in the inside of the suction pipe part 2 and the connection pipe part 3 those flow paths merge into a single flow in the boundary portion between the connection pipe part 3 and the outflow pipe part 4 one or more slits 18 extending from the tip along the flow path partitioned by the partition part are formed in an outer wall of the suction pipe part 2 and an axial length L of the connection pipe part 3 is 5-70 mm.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】吸引管部及び連結管部の強度を充分に確保しつつ、吸引量が高く体内に溜まった体液を短期間に排出することができ、流路が詰まりにくいドレーンチューブを提供することを目的とする。【解決手段】先端から順に吸引管部2、連結管部3及び流出管部4が一体に形成され、それらの内部に先端から後端まで通じる流路が形成され、吸引管部2及び連結管部3内に、先端から連結管部3の後端まで延びる仕切り部が設けられ、吸引管部2及び連結管部3の内部には、前記仕切り部によって仕切られた軸方向に延びる複数の流路が形成され、それら複数の流路は連結管部3と流出管部4の境界部分で1つに合流し、吸引管部2の外壁には、先端から前記仕切り部で仕切られた流路に沿って延びるスリット18が1つ以上形成され、連結管部3の軸方向の長さLが、5~70mmである、ドレーンチューブ1。【選択図】図1
