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Medical device for removing thromboembolic material from cerebral arteries and methods of use

  • US 6,165,199 A
  • Filed: 01/12/1999
  • Issued: 12/26/2000
  • Est. Priority Date: 01/12/1999
  • Status: Expired due to Term
First Claim
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1. A medical device for removing thromboembolic material from a carotid artery or any other extracranial or intracranial artery, comprising:

  • an elongate catheter having a proximal end, a distal end, and a lumen therebetween communicating with an aspiration port at the distal end, the catheter further comprising first and second concentric cylindrical members and a perfusion lumen communicating with one or more perfusion ports, whereby relative rotation of the first and second members causes the perfusion ports on the first member to align with the perfusion ports on the second member;

    a balloon occluder mounted on the distal end of the catheter proximal the aspiration port and distal the one or more perfusion ports; and

    a chopping mechanism associated with the aspiration port, wherein thromboembolic material engaged by suction through the aspiration port is chopped and aspirated through the catheter.

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