Device (1) for moving an elongated element in relation to an elongated body through which it extends at least partially, the device comprising: a housing (10) that can be connected to the elongated body; a movement element (20) associated with the housing (10) and which can be connected to the elongate element to move the elongate element in relation to the housing (10) and in relation to a connected elongated body; and a pre-movement element (40) for performing a pre-movement adjustment of the elongate element connected to the movement element (20) in relation to the elongated body connected to the housing (10), to reduce the clearance between the elongate element and the elongated body in preparation for moving the elongated element with the movement element (20), to ensure a direct subsequent relative movement between the elongated element and the elongated body by means of the movement element (20), the element (40) being configured of previous movement so as not to be able to function after the previous movement adjustment of the elongated element, in which the housing (10) forms a sealed unit in which the movement element (20) and the previous movement element (40) are mounted to operated by a user.Dispositivo (1) para mover un elemento alargado en relación con un cuerpo alargado a través del que se extiende al menos parcialmente, comprendiendo el dispositivo: un alojamiento (10) que puede conectarse al cuerpo alargado; un elemento (20) de movimiento asociado con el alojamiento (10) y que puede conectarse al elemento alargado para mover el elemento alargado en relación con el alojamiento (10) y en relación con un cuerpo alargado conectado; y un elemento (40) de movimiento previo para realizar un ajuste de movimiento previo del elemento alargado conectado al elemento (20) de movimiento en relación con el cuerpo alargado conectado al alojamiento (10), para reducir la holgura entre el elemento alargado y el cuerpo alargado como preparación para mover el elemento