Thrombus aspiration facilitation systems
AssigneeInsera Therapeutics, Inc.
InventorsVallabh Janardhan, Vikram Janardhan
Life of this patent
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Abstract
Vascular treatment devices and methods include a woven structure including a plurality of bulbs that may be self-expanding, a hypotube, for example including interspersed patterns of longitudinally spaced rows of kerfs, and a bonding zone between the woven structure and the hypotube. The woven structure may include patterns of radiopaque filaments measurable under x-ray. Structures may be heat treated to include various shapes at different temperatures. The woven structure may be deployable to implant in a vessel. A catheter may include a hypotube including interspersed patterns of longitudinally spaced rows of kerfs and optionally a balloon. Laser cutting systems may include fluid flow systems.
Claims20
A system for facilitating aspiration of a thrombus in a vessel, the system comprising:
- aspiration tubing comprising:
- a proximal end,
- a distal end,
- a lumen having an inner diameter that decreases from the proximal end of the aspiration tubing to the distal end of the aspiration tubing, thereby causing a change in suction pressure within the aspiration tubing sufficient to affect blood velocity and facilitate thrombus aspiration,
- a hypotube within the lumen of the aspiration tubing, the hypotube configured to inhibit collapse of the lumen of the aspiration tubing during application of negative suction through the lumen of the aspiration tubing for thrombus aspiration,
- an outer polymer coating radially outward of the hypotube, and
- an inner polymer coating radially inward of the hypotube, and
- an alternating current rotary piston pump comprising an external control panel, the pump configurable to generate crescendo suction patterns in the aspiration tubing, the crescendo suction patterns including at least two intensity levels, the pump comprising power electronics configured to control at least one of an intensity or a duration of negative suction pressure of the crescendo suction patterns.
A system for facilitating aspiration of a thrombus in a vessel, the system comprising:
- aspiration tubing comprising:
- a proximal end,
- a distal end,
- a lumen, and
- a hypotube configured to inhibit collapse of the lumen of the aspiration tubing during application of negative suction applied through the lumen of the aspiration tubing for thrombus aspiration;
- and
- a suction device configured to generate at least one crescendo suction pattern in the aspiration tubing, the at least one crescendo suction pattern comprising a plurality of intensity levels, the suction device comprising power electronics configured to control at least one of an intensity or a duration of negative suction pressure of the at least one crescendo suction pattern.
Dependencies are inferred from the claim text.