[Problem] To provide: a curving operation member with which curving operations of a flexible elongated member can be easily performed and which is capable of providing a medical apparatus which has improved operability when in use and excellent convenience and a medical apparatus equipped with the curving operation member. [Solution] A curving operation member (10) comprises: a traction member (20) at least a portion of which is connected to a distal end side of an elongated member (90) and which curves the elongated member by being pulled in an axial direction of the elongated member a moving member (30) which is connected to the traction member at the base end side of the elongated member and which moves in the axial direction of the elongated member (90) to pull the traction member a rotating member (40) which is capable of rotating around an axis of the elongated member and a conversion part (41) which converts rotation of the rotating member into movement of the moving member.Linvention fournit un élément de manipulation en courbe permettant deffectuer aisément la manipulation en courbe dun élément allongé flexible, et permettant de fournir un appareil médical très pratique dont la maniabilité lors de sa mise en œuvre est améliorée, et fournit également cet appareil médical équipé dudit élément de manipulation en courbe. Lélément de manipulation en courbe (10) possède : un élément de traction (20) dont au moins une partie est connectée au côté partie extrémité avant de lélément allongé (90) quil courbe par traction dans une direction axiale un élément de déplacement (30) qui est connecté à lélément de traction côté partie extrémité de base de lélément allongé, et qui tire lélément de traction en se déplaçant dans la direction axiale de lélément allongé un élément de rotation (40) pouvant effectuer une rotation autour de laxe de lélément allongé et une partie de conversion (41) qui convertit la rotation de lélément de rotation en déplacement de lélément de dé
