Patent ID: 8715315

Claim:
A device for treating a thrombus in a vessel, the device comprising: a completely hollow distal portion including a plurality of wires woven to form a textile structure, the plurality of wires including radiopaque wires and shape-memory wires, the distal portion including: at least ten self-expanding bulbs, at least nine necks longitudinally between the ten self-expanding bulbs and radially inward of the ten self-expanding bulbs, and a distal neck distal to the distal-most of the at least ten self-expanding bulbs; and a proximal portion coupled to a proximal end of the distal portion, the proximal portion including a hypotube having a longitudinal axis, the proximal portion comprising: a first pattern of longitudinally-spaced rows each including two kerfs and two stems, the rows of the first pattern at an angle with respect to the longitudinal axis of the hypotube, the two kerfs in each of the rows of the first pattern having rounded edges, the two stems in each of the rows of the first pattern circumferentially opposite, the stems of the first pattern offset in a first circumferential direction, a pitch of the longitudinally-spaced rows of the first pattern varying longitudinally along the hypotube, and a second pattern of longitudinally-spaced rows each including two kerfs and two stems, the rows of the second pattern at an angle with respect to the longitudinal axis of the hypotube, the two kerfs in each of the rows of the second pattern having rounded edges, the two stems in each of the rows of the second pattern circumferentially opposite, the rows of the second pattern singly alternatingly interspersed with the rows of the first pattern, the stems of the second pattern offset in a second circumferential direction opposite the first circumferential direction, a pitch of the longitudinally-spaced kerfs of the second pattern varying longitudinally along the hypotube.