Intravascular treatment of vascular occlusion and associated devices, systems, and methods
First Claim
1. A method of treating deep vein thrombosis in a peripheral vasculature of a patient, the method comprising:
- percutaneously accessing a venous vessel of a patient with an introducer sheath through an access site into the venous vessel of the patient;
inserting a catheter constraining a thrombus extraction device through a lumen of the introducer sheath to proximate the vascular thrombus in the venous vessel, wherein the thrombus extraction device comprises a proximal self-expanding coring portion having a substantially unobstructed flow path and a distal expandable tubular portion formed of a mesh structure, wherein a proximal end of the mesh structure is coupled to a distal end of the coring portion, wherein a proximal end of the coring portion is coupled to a distal end of a first shaft of the catheter, and wherein a distal end of the mesh structure is coupled to a distal end of a second shaft of the catheter that extends at least partially through the first shaft;
deploying the thrombus extraction device from the catheter from a constrained configuration to an expanded configuration until the coring portion of the thrombus extraction device is beyond a distal end of the catheter;
retracting the thrombus extraction device proximally so that the coring portion cores and separates the portion of the vascular thrombus from a venous vessel wall while the mesh structure captures the vascular thrombus portion; and
withdrawing the thrombus extraction device from the patient.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for treating thrombosis and or emboli in a peripheral vasculature of a patient are disclosed herein. The method can include providing a thrombus extraction device including a proximal self-expanding coring portion formed of a unitary fenestrated structure and a distal expandable tubular portion formed of a braided filament mesh structure; advancing a catheter constraining the thrombus extraction device through a vascular thrombus in a vessel; deploying the thrombus extraction device from the catheter from a constrained configuration to an expanded configuration; retracting the thrombus extraction device proximally so that the coring portion cores and separates a portion of the vascular thrombus from the venous vessel wall while the mesh structure captures the vascular thrombus portion; and withdrawing the thrombus extraction device from the patient to remove the vascular thrombus portion from the vessel.
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Citations
19 Claims
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1. A method of treating deep vein thrombosis in a peripheral vasculature of a patient, the method comprising:
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percutaneously accessing a venous vessel of a patient with an introducer sheath through an access site into the venous vessel of the patient; inserting a catheter constraining a thrombus extraction device through a lumen of the introducer sheath to proximate the vascular thrombus in the venous vessel, wherein the thrombus extraction device comprises a proximal self-expanding coring portion having a substantially unobstructed flow path and a distal expandable tubular portion formed of a mesh structure, wherein a proximal end of the mesh structure is coupled to a distal end of the coring portion, wherein a proximal end of the coring portion is coupled to a distal end of a first shaft of the catheter, and wherein a distal end of the mesh structure is coupled to a distal end of a second shaft of the catheter that extends at least partially through the first shaft; deploying the thrombus extraction device from the catheter from a constrained configuration to an expanded configuration until the coring portion of the thrombus extraction device is beyond a distal end of the catheter; retracting the thrombus extraction device proximally so that the coring portion cores and separates the portion of the vascular thrombus from a venous vessel wall while the mesh structure captures the vascular thrombus portion; and
withdrawing the thrombus extraction device from the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A thrombus extraction device for removal of a vascular thrombus from a blood vessel of a patient, the thrombus extraction device comprising:
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a catheter having an outer shaft defining a first lumen, an intermediate shaft defining a second lumen, and an inner shaft, where the intermediate shaft is coaxial the first lumen and the inner shaft is coaxial the second lumen; a proximal self-expanding coring element having a proximal end and a distal end and configured to core and separate a portion of the vascular thrombus from the blood vessel, the self-expanding coring element having a substantially unobstructed flow path, wherein the proximal end of the coring element is coupled to a distal end of the intermediate shaft; and a distal expandable tubular portion formed of a mesh structure having a proximal end and a distal end and configured to capture the vascular thrombus portion, wherein the proximal end of the mesh structure is coupled to the distal end of the coring element, and wherein the distal end of the mesh structure is coupled to a distal end of the inner shaft. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification