Device and method for treating vascular occlusion
AssigneeInari Medical, Inc.
InventorsBrian J. Cox, Paul Lubock, Robert F. Rosenbluth
Life of this patent
Estimating the term…
Abstract
A system and method for managing an occlusion, such as a blood clot, within a lumen or passageway of a patient. More particularly, a system and method for rapidly restoring blood flow through an occlusion including a self-expanding, tubular member through which blood may flow when in an expanded state. The tubular member has a structure configured to engage the occlusive material, thereby allowing for extraction of at least a portion of the occlusive material. The system may further employ a material extraction member that is deployed distally of the tubular member.
Claims21
1-27. (canceled)
A method for removal of thrombus from a blood vessel of a patient, the method comprising:
- providing a thrombus extraction device comprising (a) a scaffold member formed of a tubular fenestrated structure including an open proximal end portion having a perimeter and an open distal end portion, (b) a capture member formed of a mesh structure having a proximal end portion attached to the distal end portion of the scaffold member so as to form a continuous structure, and (c) a retraction member connected to the proximal end portion of the scaffold member;
- advancing a catheter constraining the thrombus extraction device at least partially into the blood vessel and at least partially through the thrombus;
- deploying the thrombus extraction device, wherein deploying the thrombus extraction device comprises expanding the scaffold member, and wherein deploying the thrombus extraction device comprises expanding the capture member after expanding the scaffold member;
- retracting the thrombus extraction device through the thrombus;
- separating the thrombus from the blood vessel with the scaffold member;
- and
- capturing the thrombus at least partially within the capture member.
A method of treating clot material within a blood vessel in a vasculature of a patient, the method comprising:
- advancing a catheter at least partially through the vasculature of the patient, at least partially into the blood vessel, and at least partially through the clot material;
- deploying a clot treatment device from the catheter;
- expanding a generally tubular sent structure of the clot treatment device, wherein the stent structure has a proximal end portion that is open and a distal end portion that is open;
- expanding a braid structure of the clot treatment device, wherein the braid structure comprises a plurality of filaments braided together, wherein a proximal end portion of the braid structure is attached to the distal end portion of the stent structure, and wherein a distal end portion of the braid structure is closed;
- and
- retracting the clot treatment device through the clot material to (a) separate the clot material from the blood vessel with the stent structure and (b) capture the separated clot material at least partially within the braid structure.
A method of treating clot material within a peripheral blood vessel in a vasculature of a patient, the method comprising:
- advancing a catheter at least partially through the vasculature of the patient, at least partially into the peripheral blood vessel, and at least partially through the clot material;
- deploying a clot treatment device from the catheter;
- expanding a generally tubular sent structure of the clot treatment device, wherein the stent structure has a proximal end portion that is open and a distal end portion that is open;
- expanding a braid structure of the clot treatment device, wherein the braid structure comprises a plurality of filaments braided together, wherein a proximal end portion of the braid structure is attached around a periphery of the distal end portion of the stent structure such that the proximal end portion of the braid structure opens to a lumen of the stent structure, and wherein a distal end portion of the braid structure is closed;
- and
- retracting the clot treatment device through the clot material to (a) separate the clot material from the blood vessel with the stent structure and (b) capture the separated clot material at least partially within the braid structure.
Dependencies are inferred from the claim text.