1. A microcatheter for delivering embolic fluids, comprising: an outer member formed having dimensions to ensure its insertion into the blood vessel adjacent to the site of embolization, wherein the outer member defines a first longitudinal cavity, the inner member adapted to be selectively placing the first longitudinal cavity of the outer member defining a second longitudinal cavity and having a delivery channel for communicating with the fluid communication with a second longitudinal cavity etc. To pass and embolic delivery of fluids to the site of embolization iklapan disposed in the outer member and having dimensions adapted to form substantially a seal around the inner member to minimize embolic delivery of fluids into the first longitudinal lumen of the outer member after delivery to the site embolizatsii.2. The microcatheter of claim 1, wherein the outer member includes an extension configured to element disposed on the outer surface of its wall near the channel for delivery and having dimensions adapted to allow for expansion of the inner wall of said blood vessel and interact with this part of the insulation- at least partially, said portion embolizatsii.3. The microcatheter of claim 2, wherein the formed expandable element includes a balloon adapted to nakachivaniya.4. The microcatheter of claim 3, wherein the balloon is adapted to inflate, communicates with the fluid communication with the first longitudinal cavity and the outer member1. Микрокатетер для доставки эмболических текучих сред, содержащий:внешний элемент, выполненный имеющим размеры для обеспечения его вставки в кровеносный сосуд, расположенный рядом с участком эмболизации, при этом внешний элемент образует первую продольную полостьвнутренний элемент, выполненный с возможностью избирательного размещения в первой продольной полости внешнего элемента, образующий вторую продольную полость и имеющий канал для доставки, сообщающийся с возможностью прохождения текучей среды со второй продольной пол
