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US 10,588,655 B2Granted
Methods and apparatus for treating embolism
AssigneeInari Medical, Inc.
InventorsRobert F. Rosenbluth, Brian J. Cox, Paul Lubock
Life of this patent
Estimating the term…
Abstract
A method and apparatus for treating a clot in the blood vessel of a patient, and particularly the treatment of a pulmonary embolism is disclosed. The treatment includes restoring flow through the clot followed by clot removal, either partially or substantially completely. The clot treatment device is expandable into the blood vessel and may contain radial extensions that assist in restoring flow as well as in removing clot material.
Claims30
A method of treating a pulmonary embolism comprising:
- identifying a pulmonary embolism at least partially restricting blood flow through a pulmonary artery;
- delivering an embolectomy device through the heart to said pulmonary embolism;
- deploying said embolectomy device within said pulmonary embolism so as to restore blood flow through said pulmonary embolism;
- said deploying comprising expanding said embolectomy device within said pulmonary embolism with at least a portion of said embolectomy device expanding distal to said pulmonary embolism;
- retracting said embolectomy device through said pulmonary embolism such that at least a portion of said pulmonary embolism is captured by said embolectomy device;
- said retracting comprising elongating said embolectomy device during said retracting;
- withdrawing said embolectomy device with said at least a portion of said pulmonary embolism.
4 more elements
A method of treating a pulmonary embolism comprising:
- accessing a venous vessel of a patient;
- inserting a catheter into said venous vessel and urging said catheter through said venous vessel, through chambers of said patient's heart and into a pulmonary artery until a distal end of said catheter is located at a distal end region of a pulmonary embolism of said patient;
- delivering a generally cylindrical or conical clot treatment device through said catheter and into said pulmonary embolism;
- expanding the diameter of said clot treatment device from its compressed state to its expanded state by a ratio of at least 4 to 8 and thereby restoring blood flow through said pulmonary embolism;
- and,
- retracting said expanded clot treatment device through said pulmonary embolism and thereby removing clot material, wherein retracting said clot treatment device includes elongating said clot treatment device.
3 more elements
A method of treating a pulmonary embolism comprising:
- accessing a venous vessel of a patient;
- inserting a delivery catheter containing a clot treatment device through into said venous vessel and through the venous circulatory system of the patient, through the heart to a clot of a pulmonary embolism;
- urging said delivery catheter through said clot;
- deploying said clot treatment device from said delivery catheter and causing an outwardly expanding generally cylindrical or conical force to be urged against an inner surface of said clot to form a channel of not less than about 4 to 8 mm entirely through said clot;
- and,
- withdrawing said clot treatment device through said clot and thereby removing clot material from said clot, wherein withdrawing said clot treatment device includes elongating said clot treatment device.
3 more elements
Dependencies are inferred from the claim text.