1. The introducer assembly, soderzhaschiyv generally tubular shell, the tool adapted to slide through the sheath, ifiksator operatively connecting the shell and the instrument for selectively fixing tool and the shell, wherein the latch is movable between locking and free positions for the axial fixation for subsequent release tool and the cladding without causing movement of the tool relative obolochki.2. Introducer assembly according to claim. 1, characterized in that the locking mechanism includes a locking handle, rotatable between a locking and a free position without being rotated relative to the tool obolochki.3. Introducer assembly according to claim. 2, characterized in that the locking mechanism includes a hub coupled to the tool and having an annular supporting surface contacting slidably with a locking handle for rotating the latch handle between the locking and free polozheniyami.4. Introducer assembly according to claim. 3, characterized in that the locking mechanism includes a guide surface extending from the annular bearing surface which is in contact with the locking handle to limit axial movement of the handle relative to the fixing instrumenta.5. Introducer assembly according to claim. 4, characterized in that the locking handle includes at least one rib which contacts extending radially from the annular bearing surface to pivot the latch handle of the tool and in contact with the guide surface for limiting axial movement CONST1. Узел интродуктора, содержащийв целом трубчатую оболочку,инструмент, выполненный с возможностью скольжения через оболочку, ификсатор, функционально связывающий оболочку и инструмент для выборочной фиксации инструмента и оболочки, при этом фиксатор выполнен с возможностью перемещения между фиксирующим и свободным положениями для осевой фиксации для последующего освобождения инструмента и оболочки, не вызывая перемещение инструмента относительно оболочки.2. Узел интродуктора по п. 1, отличающийся тем, что фиксирующий механиз
