The suture body has a first end and a second end, and a suture thread locked to a living tissue, a suture needle connected to the first end, and a thread clamp connected to the second end. And the thread stopper includes a rod-shaped protrusion and an elastic member disposed so as to contact the outer peripheral surface of the protrusion with a predetermined contact pressure. The suture thread is configured to be able to enter between the protruding portion and the elastic member by being deformed.この縫合体は、第一端と第二端とを有し、生体組織に係止される縫合糸と、前記第一端に接続された縫合針と、前記第二端に接続された糸止め部と、を備え、前記糸止め部は、棒状の突出部と、前記突出部の外周面と所定の接触圧で接触するように配置された弾性部材と、を有し、前記弾性部材を弾性変形させることにより前記突出部と前記弾性部材との間に前記縫合糸が進入可能に構成されている。
