1. The piston rod assembly for a device for the delivery of drugs, comprising: a piston rod (200) adapted to engage the working piston (155) of the cartridge (153), which contains a drug, at least one adjusting element (202 ) located at the piston rod (200) movable relative to the longitudinal axis of the piston rod (200) and interconnected with a portion (206) of the distal end of the piston rod (200) and at least one means (216) locking, which is adapted for interaction ystviya the adjusting element (202) and / or the piston rod (200) for interlocking in position of the adjusting member (202) and piston rod (200) in an arbitrary position relative to each other, and wherein the adjusting element (202) and the piston rod (200) threadedly engaged with to axially displace the piston rod (200) and adjusting element (202) relative to each other, wherein means (216) adapted to prevent spontaneous blocking the relative rotation of the piston rod (200) and adjusting Elem w (202) .2. a piston rod assembly of claim 1, wherein the adjusting element (202) comprises a holder (203) having a thread adapted to accommodate respective thread having a distal female part (210) of the piston rod (200) .3. A piston rod assembly according to claim 1, wherein the piston rod comprises a holder having a thread adapted to accommodate respective thread having a proximal portion of the adjustment elementa.4 rosette. a piston rod assembly according to any one of claims 1-3, wherein the means (216) lock comprises at least one elastically about1. Узел поршневого штока для устройства для доставки лекарственных средств, содержащий:поршневой шток (200), выполненный с возможностью рабочего сцепления с поршнем (155) картриджа (153), в котором содержится лекарственный препарат,по меньшей мере, один регулировочный элемент (202), расположенный при поршневом штоке (200) с возможностью перемещения относительно продольной оси поршневого штока (200) и взаимосвязанный с участком (206) дистального конца поршне
