According to one feature of this invention, being the suture instrument, it includes with the support base and the needle Drive section and the needle for operation, the needle for aforementioned operation is stored in the aforementioned needle Drive section, operates vis-a-vis the aforementioned support base, reaches the point where the 1st suture thread from the needle for aforementioned operation and the 2nd suture thread from the aforementioned support base interwind with aforementioned operation, locks the tupple job which becomes the target of aforementioned suture vis-a-vis the aforementioned support base, the suture instrument which furthermore includes the fixed part in order to release aforementioned fixing is offered.本発明の一態様によれば、縫合器具であって、支持台と、針駆動部と、手術用針とを含み、前記手術用針は、前記針駆動部に収容され、前記支持台に対して動作し、前記動作により、前記手術用針からの第1縫合糸と、前記支持台からの第2縫合糸とが絡み合うようになり、前記縫合の対象となる組職を前記支持台に対して固定させ、前記固定を解除するための固定部をさらに含む縫合器具が提供される。
