1. occluder for closing the passage in the circulation system, comprising: at least one occluding component (4, 5) for closing the passageway extending assembly (1) comprising at least one fixing means for fixing the occluding component (4, 5) pass, wherein at least part of the spreading unit (1) is able to form during its deployment, the retaining means thereby ensuring deployment occluding component izapirayuschy node (2, 3) to block the spreading unit (1) in its expanded state, n When this: in a spreading unit (1) there are first and second ends, the first of which is attached to the first element of the locking unit (2, 3) and the second - to a second element of the locking unit (2, 3), wherein the first and second elements of the locking node (2, 3) are arranged to block the interaction with each other when expanding occluding component (4, 5) further comprises at etomokklyuder Case (6, 7) surrounding at least a portion extending uzla.2. The occluder of Claim. 1 which comprises an elongated component, conducted through said at least one occluding component (4, 5) .3. The occluder of Claim. 1, wherein the cover (6, 7) attached to at least one occluding component (4, 5) .4. The occluder of Claim. 1, wherein the cover (6, 7) surrounds at least one fixing sredstvo.5. The occluder of Claim. 1, which contains exactly two holding means and two outer cover (6, 7), each of which surrounds one of the locking sredstv.6. The occluder of Claim. 1 which comprises first and second occlusive components (4, 5), in the undeployed state at a distance from each other, wherein1. Окклюдер для закрытия прохода в системе циркуляции, содержащий:по меньшей мере один окклюдирующий компонент (4, 5) для закрытия прохода,расширяющий узел (1), содержащий по меньшей мере одно фиксирующее средство для фиксирования окклюдирующего компонента (4, 5) в проходе, причем по меньшей мере часть расширяющего узла (1) способна при своем развертывании сформировать фиксирующее средство с обеспечением тем с
