A first tubular body part (210) in which a male screw part (211) and a flat part (212) where the male thread part is not formed are formed alternately along the circumferential direction of the outer circumferential surface, And a second tubular body part (220) which can be fitted into the interior of the second tube (20), and a second tubular body part (220) which slides linearly on the surface of the artificial blood vessel (20) A tubular portion (310) capable of being looped around the outer peripheral surface of the body portion (220) via the artificial blood vessel (20), a tubular portion A female screw portion having a female thread portion and covering the ferrule, the female screw portion is inserted into a male screw portion of the first tubular body portion, And a nut (400) connected to the connector portion (200) by screwing. Thus, damage to the artificial blood vessel can be prevented beforehand, and the reliability of the connection between the artificial blood vessel and the artificial blood vessel connecting device can be enhanced雄ネジ部(211)と当該雄ネジ部が形成されていない平面部(212)とが外周面の周方向に沿って交互に形成されている第1筒状体部(210)と、人工血管(20)の内部に嵌入可能となっている第2筒状体部(220)とを有するコネクタ部(200)と、人工血管(20)の表面上を直線的にスライドさせることにより第2筒状体部(220)の外周面に人工血管(20)を介して環装可能な筒状部(310)と、第1筒状体部(210)の平面部(212)に当接する爪板部(320)とを有するフェルール(300)と、雌ネジ部を有し、フェルール(300)を覆った状態で雌ネジ部を第1筒状体部(210)の雄ネジ部(211)に螺合させることによりコネクタ部(200)に接続されるナット(400)とを備える。 これにより、人工血管の損傷を未然に防止することができ、かつ、人工血管と人工血管接続具との接続の信頼性を高くすることができる
