PROBLEM TO BE SOLVED: To provide a suturing device which can be smoothly inserted into a body. SOLUTION: The suturing device 1 has a sheath portion 3 having a tube 32 into which a wire 31 is slidably inserted and has a suture portion at a distal end and an operation portion 4 at a proximal end. The suture portion includes a first arm that is connected to the distal end of the wire 31 and supports the suture, and a second arm that is connected to the distal end of the tube 32 and that has a needle-shaped member that holds a ligature. Have. The operation unit 4 is connected to the proximal end of the wire 31, a slider unit 41, a base unit 42 connected to the proximal end of the tube 32 and slidable with respect to the slider unit 41, and a first arm. In the state where the slider portion 41 and the base portion 42 are arranged so that the distal end portion of the needle-shaped member is brought into close proximity without engaging with the engaging member of the suture thread supported by It has slide restricting means 41d, 42d, 43 for restricting the slide to be released. [Selection diagram] Figure 1A【課題】体内への挿入作業を円滑に行い得る縫合装置を提供すること。【解決手段】ワイヤ３１がスライド可能に挿通されたチューブ３２を有するシース部３の遠位端に縫合部を、近位端に操作部４を有する縫合装置１である。縫合部は、ワイヤ３１の遠位端に接続され、縫合糸を支持する第１アームと、チューブ３２の遠位端に接続され、結紮具を保持する針状部材とを備える第２アームとを有する。操作部４は、ワイヤ３１の近位端に接続されたスライダ部４１と、チューブ３２の近位端に接続され、スライダ部４１に対してスライド可能に設けられたベース部４２と、第１アームに支持された縫合糸の係合部材に針状部材の先端部が係合することなく近接させた寸止め状態となるように、スライダ部４１とベース部４２とを配置した状態で、これらのスライドを解除可能に規制するスライド規制手段４１ｄ、４２ｄ、４３とを有する。【選択図】図１Ａ
