Patent ID: 8728115

Claim:
An intravascular device adapted for treatment of a vascular occlusion, comprising: a coiled member formed from a plurality of first shape coil segments alternatingly longitudinally connected with a plurality of second shape coil segments, the first shape coil segments having an inner lumen and a first cross sectional shape, and the second shape coil segments having an inner lumen and a second cross sectional shape that is different from said first cross sectional shape, the coiled member having a first generally linear configuration and a secondary complex three dimensional configuration; and a tether having a distal tether portion connected to the coiled member at an attachment point, an intermediate tether portion slidingly disposed generally longitudinally inside the inner lumen of at least one of said plurality of first shape coil segments and outside the inner lumen of at least one of said plurality of second shape coil segments, and a proximal tether portion extending proximally beyond a proximal end of the coiled member, said tether being configured to cause said coiled member to change from said first generally linear configuration to said secondary complex three dimensional configuration upon tensioning of said tether by application of a proximal longitudinal force to said tether.