Patent ID: 8945172
Filing Date: 2015-02-03
Classification: A61B,A61F,A61M

Abstract:
1. A catheter-based blood-flow restoration system configured to restore blood flow in an occluded blood vessel of a subject's neurovasculature, comprising: a microcatheter having a lumen, a blood flow restoration device configured to be disposed within the lumen of the microcatheter, wherein the blood flow restoration device comprises a self-expandable capturing member coupled to a distal end of an elongate delivery member, the elongate delivery member comprising a tubular member, a coil, and a shrink tube, the tubular member joined to the coil at a joint, the shrink tube surrounding the joint and extending proximally and distally of the joint, wherein the self-expandable capturing member is configured to be delivered through the microcatheter in a compressed configuration and deployed to an expanded configuration upon retraction of the microcatheter at a location of a clot, wherein the capturing member comprises a generally cylindrical body having an open-cell structure that is configured to compress the clot against an inner wall of the neurovasculature upon deployment of the capturing member from the microcatheter, thereby restoring blood flow through the neurovasculature downstream of the clot, wherein the generally cylindrical body comprises a mouth at a side of the body, the mouth being configured to accept passage of the clot to within the capturing device, the mouth being larger than any cell of the open-cell structure, and an entire perimeter of the mouth being positioned at a radially outermost periphery of the body, wherein a proximal end of the generally cylindrical body is closed and tapered in the expanded configuration; and wherein a distal end of the generally cylindrical body is closed in the expanded configuration.