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DEVICES FOR RESTORING BLOOD FLOW AND CLOT REMOVAL DURING ACUTE ISCHEMIC STROKE

  • US 20120116443A1
  • Filed: 12/30/2011
  • Published: 05/10/2012
  • Est. Priority Date: 10/17/2007
  • Status: Active Grant
First Claim
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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 distal self-expandable capturing member coupled to a distal end of an elongate delivery member,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 and capture the clot at least partially on an external surface of the generally cylindrical body upon deployment of the capturing member from the microcatheter, thereby restoring blood flow through the neurovasculature downstream of the clot,wherein a proximal end of the generally cylindrical body is open and tapered in the expanded configuration; and

    wherein a distal end of the generally cylindrical body is open in the expanded configuration.

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