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US 2014/0155908 A1Published application
Methods And Apparatus For Treating Embolism
AssigneeInceptus Medical, LLC
InventorsRobert F. Rosenbluth, Brian J. Cox, Paul Lubock
Life of this patent
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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:
- delivering an embolectomy device through the heart to a pulmonary embolism that at least partially restricts blood flow through a pulmonary vessel, wherein the embolectomy device comprises an expandable cylindrical section and a radial expansion member configured to expand outwardly from the cylindrical section;
- deploying the embolectomy device within the pulmonary embolism so as to restore blood flow through said pulmonary embolism,
- wherein deploying the embolectomy device comprises expanding the cylindrical section within the pulmonary embolism such that the cylindrical section forms an expanded flow channel through the pulmonary embolism and expanding the radial expansion member to a greater extent than the cylindrical section, and wherein at full exapansion of the cylindrical member the radial expansion member projects outward from the cylindrical member;
- moving the embolectomy device and at least a portion of the pulmonary embolism along the pulmonary vessel;
- and
- withdrawing the embolectomy device and at least a portion of said the pulmonary embolism from the pulmonary vessel.
3 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 the catheter through said venous vessel, through chambers of the patient's heart and into a pulmonary artery until a distal end of the catheter is located at a distal end region of a pulmonary embolism of the patient;
- delivering a clot treatment device having a flow portion and a radial expansion member through the catheter and into the pulmonary embolism;
- expanding the flow portion from a compressed state to an expanded elongated state such that a diameter of the flow portion increases by a ratio of at least 1:1 to 8:1 and thereby forms a flow channel that restores blood flow through the pulmonary embolism;
- expanding the radial expansion member to a greater extent than the diameter of the flow portion in the expanded elongated state, and wherein at full expansion of the flow portion the radial expansion member projects outward from the flow portion;
- retracting the clot treatment device and at least a portion of the clot material along the vessel.
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 into the venous vessel, through the venous circulatory system of the patient, and through the heart to a clot of a pulmonary embolism;
- urging the delivery catheter through the clot;
- deploying the clot treatment device from the delivery catheter and causing an outwardly expanding radial force along a cylinder to be urged against an inner surface of said clot to form a channel of not less than about 4 mm to 8 mm entirely through said clot and causing a radial expansion member to expand to a greater extent than the channel, and wherein at full expansion of the cylinder that radial expansion member projects outward from the cylinder;
- and
- withdrawing said clot treatment device through said clot and thereby removing clot material from said clot.
3 more elements
Dependencies are inferred from the claim text.