Woven vascular treatment systems

摘要

Vascular treatment and methods include a plurality of self-expanding bulbs and a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Joints between woven structures and hypotubes include solder. Woven structures include patterns of radiopaque filaments measureable under x-ray. Structures are heat treated to include at least shapes at different temperatures. A catheter includes a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Heat treating systems include a detachable flange. Laser cutting systems include a fluid flow system.

主权项

1. A device for treating a thrombus in a vessel, the device comprising:
a 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, wherein the at least ten self-expanding bulbs comprises:a first bulb;a second bulb distal to the first bulb, the first bulb and the second bulb having a first diameter;a third bulb distal to the second bulb;a fourth bulb distal to the third bulb, the third bulb and the fourth bulb having a second diameter smaller than the first diameter;a fifth bulb distal to the fourth bulb;a sixth bulb distal to the fifth bulb;a seventh bulb distal to the sixth bulb, the fifth bulb, the sixth bulb, and the seventh bulb having a third diameter smaller than the second diameter;an eighth bulb distal to the seventh bulb;a ninth bulb distal to the eighth bulb; anda tenth bulb distal to the ninth bulb, the eighth bulb, the ninth bulb, and the tenth bulb having a fourth diameter smaller than the third diameter,at least nine necks longitudinally between the ten self-expanding bulbs and radially inward of the ten self-expanding bulbs, anda distal neck distal to the distal-most of the at least ten self-expanding bulbs, wherein the distal neck comprises a free end; 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 being 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, anda 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 being circumferentially opposite being, 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.