first connector portion (3) and the second connector portion (5), and the tubular structure of a medical comprising engaging and disengaging member (23) for at least assisting the disengagement of the engagement between the connector portion ( a coupling device for two) (1), the first connector portion (3) has at least two female coupling portion (9) and at least two female coupling portion disposed on the first connecting surface (7) ( comprising projecting guide edge (11) from a first connecting surface which is arranged around the nine) (7), the second connector portion (5) is at least 2 Tsunoyu disposed on the second connecting surface (17) comprising a connection part (19), the first connector portion (3) and the second connector portion (5) of the at least one locking element which is arranged to engage by rotating the disengaging member (23) (13 ) a.FIELD 2第1コネクタ部(3)及び第2コネクタ部(5)、及び前記コネクタ部間の係合の係脱を少なくとも補助するための係脱部材(23)を備える医療用の管状構成(2)のための連結装置(1)であって、第1コネクタ部(3)は第1接続面(7)に配置された少なくとも2つの雌接続部(9)及び少なくとも2つの雌接続部(9)の周りに配置された第1接続面(7)から突き出したガイド端(11)を備え、第2コネクタ部(5)は、第2接続面(17)に配置された少なくとも2つの雄接続部(19)を備え、第1コネクタ部(3)及び第2コネクタ部(5)の少なくとも一つは係脱部材(23)に回転して係合するように配置されたロック要素(13)を備えている。【選択図】図2