< Topic >The dermal interposition drainage tube assembly body which removal leaving when improving of drainage efficiency, suppression, and removal leaving of blockade trouble it is possible, at the same time dermally it can interpose can detain safely reduction to obtain painfully, is offered.SolutionsAs for the drainage tube 1 which relates to this device, with the tube of circular tubular profile the drainageThe drainage section it is joined by one body to the front of 3 which becomes the aisle and this drainage section, 3 this drainage section possesses 3 and summary equal suitable major diameter and sump it is joined by one body to the front of sump 2 of 2 of the flute condition which is detained to internal and this flute condition, while being equal to summary drainage section 3, short pipe section to the front of 5 of circular tubular profile of major diameter and this short pipe section 5 it is joined by one body, possesses complete penetration lumen 7 it consists Tip tip/chip 4 of the head cone.< Choice figure >Drawing 1【課題】排液効率の改善、閉塞トラブルの抑制、ならびに抜去時の抜去痛を軽減せしめることができ、かつ安全に経皮挿入留置できる経皮挿入排液チューブ組立体を提供する。【解決手段】本考案に係る排液チューブ1は、円管状断面のチューブで排液通路となる排液部3と、この排液部3の前方に一体的に結合され、この排液部3と大略同等の相当外径を有し体内に留置されるフルート状の集液部2と、このフルート状の集液部2の前方に一体的に結合され、大略排液部3と同等の内、外径の円管状断面の短管部5と、この短管部5の前方に一体的に結合され、貫通内腔7を有する截頭円錐形の先端チップ4で構成されている。【選択図】図1