The self-expandable aneurysm filling device (102, 202), system and method provide for placement of the stent into an aneurysm (112) to at least partially fill and stabilize the aneurysm. The self -expandable aneurysm filling device (102) has a compressed undeployed configuration and an expanded three-dimensional deployed configuration, and a severable deployment junction (104, 204) releasably connects the self-expandable aneurysm filling device to a pusher wire (106, 206). The severable deployment junction can be mechanically, electrolytically, or thermally severed to separate the self-expandable aneurysm filling device from the pusher wire.