Methods of treating a thrombus in an artery using cyclical aspiration patterns
First Claim
1. A method of treating a thrombus in an artery using a repetitive cyclical pattern for aspiration, the method comprising:
- inserting a distal end of a catheter into the artery, wherein the thrombus is distal to the distal end of the catheter, the catheter being a microcatheter, a distal access microcatheter, or a guide catheter, the thrombus causing acute ischemic stroke due to occlusion of the artery;
choosing the cyclical pattern from a plurality of stored cyclical patterns, the cyclical pattern comprising repetition of a first suction level, a second suction level different than the first suction level;
aspirating the thrombus using negative pressure through the catheter, the negative pressure varying according to the chosen cyclical pattern generated by power electronics of an automated negative suction device; and
arresting flow in the artery including inflating a balloon proximal to the thrombus and stopping anterograde forward flow proximal to the thrombus during aspirating the thrombus.
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Accused Products
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.
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Citations
20 Claims
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1. A method of treating a thrombus in an artery using a repetitive cyclical pattern for aspiration, the method comprising:
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inserting a distal end of a catheter into the artery, wherein the thrombus is distal to the distal end of the catheter, the catheter being a microcatheter, a distal access microcatheter, or a guide catheter, the thrombus causing acute ischemic stroke due to occlusion of the artery; choosing the cyclical pattern from a plurality of stored cyclical patterns, the cyclical pattern comprising repetition of a first suction level, a second suction level different than the first suction level; aspirating the thrombus using negative pressure through the catheter, the negative pressure varying according to the chosen cyclical pattern generated by power electronics of an automated negative suction device; and arresting flow in the artery including inflating a balloon proximal to the thrombus and stopping anterograde forward flow proximal to the thrombus during aspirating the thrombus. - View Dependent Claims (2, 3)
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4. A method of treating a thrombus in an artery using a repetitive cyclical pattern for aspiration, the method comprising:
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inserting a distal end of a catheter into the artery, wherein the thrombus is distal to the distal end of the catheter, the catheter being a microcatheter, a distal access microcatheter, or a guide catheter; selecting the cyclical pattern from a plurality of stored cyclical patterns, the cyclical pattern comprising repetition of a first suction level and a second suction level different than the first suction level; and aspirating the thrombus using negative pressure through the catheter, the negative pressure varying according to the selected cyclical pattern generated by power electronics of an automated negative suction device. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A method of treating a thrombus in an artery using a repetitive cyclical pattern for aspiration, the method comprising:
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inserting a distal end of a catheter into the artery, wherein the thrombus is distal to the distal end of the catheter; selecting the cyclical pattern from a plurality of provided cyclical patterns or creating the cyclical pattern, the cyclical pattern comprising repetition of a first suction level and a second suction level different than the first suction level; and aspirating the thrombus using negative pressure through the catheter, the negative pressure varying according to the selected or created cyclical pattern generated by power electronics of an automated negative suction device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification