abstract |
A method for restoring blood flow in an occluded vessel is pre-formed to take on a superimposed structure under non-restrained conditions, but is manufactured to take a volume-reduced form whereby a microcatheter and a push wire arranged at the near end And in the overlapped structure, the distal portion takes the form of a tube that is open in the transverse direction and uses a mechanism having a self-expanding distal portion having a mesh structure of interconnected strings or filaments or struts. In a preferred embodiment, the distal portion has a tapering structure at its near end, and the string or filament or strut converges at the connection point. |