The medical device includes a rod having a curved portion formed on the distal end side of the extending portion extending along the longitudinal axis and having a curved portion curved with respect to the longitudinal axis, and between the distal end of the curved portion and the extending portion. An inner peripheral surface having an inner diameter that is larger than the distance between the distal end of the bending portion and a portion of the bending portion, and a notch formed in at least one of the distal end portion and the proximal end portion Are formed by integral molding, and the rod is inserted along the central axis defined by extending from the distal end portion to the proximal end portion, and the curved portion is opened from the opening at the distal end portion of the inner peripheral surface. And an extended sheath.医療機器は、長手軸に沿って延出された延出部の先端側に形成され前記長手軸に対して湾曲した湾曲部を有するロッドと、前記湾曲部の先端と前記延出部との間の距離よりも大きく、前記湾曲部の先端と前記湾曲部の一部との間の距離よりも小さい内径を有する内周面と、先端部及び基端部の少なくとも一方に形成された切り欠き部とが一体成型により形成され、前記先端部から前記基端部にわたって延伸して規定される中心軸に沿って、前記ロッドを内挿して前記内周面の前記先端部における開口から前記湾曲部を延出したシースとを有する。
