PROBLEM TO BE SOLVED: To provide a medical bidirectional suturing device capable of safely suturing a biological membrane or the like. A bidirectional medical suturing device 1 having a first needle member, a second needle member, and a regulating member on the distal side and a handle portion 21 on the proximal side, wherein the first needle member is The tip faces the distal side, the second needle member is disposed more distally than the first needle member, the tip faces the proximal side, and the restricting member is more distal than the first needle member and the second needle member. Located closer to the needle member than the needle member, the handle portion 21 includes a first operating portion 23 for moving the first needle member, a second operating portion 24 for moving the second needle member, and a first operating portion 24 for moving the regulating member. 3 operating section 25, the first needle member moves to the distal side when the first operating section 23 is loaded, and the second needle member moves to the proximal side when the second operating section 24 is loaded. , The third operating portion 25 moves to a position that does not interfere with the movement of the first needle member and / or the second needle member when the third operating portion 25 is loaded. [Selection diagram] Figure 1【課題】生体膜等の縫合作業を安全に行うことができる医療用双方向縫合装置を提供する。【解決手段】遠位側に第１針部材と第２針部材と規制部材とを有し、近位側にハンドル部２１を有する医療用双方向縫合装置１であって、第１針部材は先端が遠位側を向き、第２針部材は、第１針部材よりも遠位側に配置され、先端が近位側を向き、規制部材は第１針部材よりも遠位側かつ第２針部材よりも近位側に位置し、ハンドル部２１は、第１針部材を移動させる第１操作部２３と、第２針部材を移動させる第２操作部２４と、規制部材を移動させる第３操作部２５とを有し、第１操作部２３の負荷状態で第１針部材が遠位側に移動し、第２操作部２４の負荷状態で第２針部材が近位側に移動し、第３操作部２５の負荷状態で第１針部材および／または第２針部材の移動の妨げとなる位置からならない位置に移動する。【選択図】図１
