An apparatus (100) for placement on the intestinal sidewall is provided. The apparatus (100) includes a first member (10) and a second member (20) having a substantially hollow opening structure. The first member (10) includes an elastic part (11) having first and second axial ends, and a rigid support part (10) disposed at the first axial end of the elastic part (11). 12). The second member (20) has first and second axial ends, and the first axial end of the second member (20) has an intestinal wall as the elastic portion (11). It has a shape that matches the second axial end portion of the elastic portion (11) so as to be uniformly distributed between the second axial end portion and the second member (20). The device (100) further includes a connecting member (30) for connecting the rigid support portion (12) and the second member (20) to each other. A method of attaching the device to the tubular tissue is also provided. The connector (200) connects the two devices (100). [Selection] Figure 1腸の側壁に配置するための装置（１００）を提供する。装置（１００）は、略中空の開口構造の、第１部材（１０）および第２部材（２０）を備えている。第１部材（１０）は、第１および第２の軸方向端部を持つ弾性部（１１）と、前記弾性部（１１）の前記第１の軸方向端部に配置された剛性支持部（１２）とを備えている。第２部材（２０）は、第１及び第２の軸方向端部を持ち、前記第２部材（２０）の前記第１の軸方向端部は、腸壁が前記弾性部（１１）の前記第２の軸方向端部と前記第２部材（２０）との間で一様に分布するように、弾性部（１１）の第２の軸方向端部と合致する形状となっている。装置（１００）は、さらに、前記剛性支持部（１２）と前記第２部材（２０）とを相互に連結するための連結部材（３０）を備えている。装置をチューブ状組織に装着する方法、２つの装置（１００）を接続するコネクタ（２００）も提供する。【選択図】 図１
