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Aortic occluder with associated filter and methods of use during cardiac surgery

  • US 6,592,546 B1
  • Filed: 01/30/1998
  • Issued: 07/15/2003
  • Est. Priority Date: 05/14/1996
  • Status: Expired due to Term
First Claim
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1. A method for protecting a patient from embolization during an open surgical procedure, comprising the steps of:

  • providing a cannula having an outer surface, a distal end adapted to enter an artery, a proximal end, a filter disposed about the distal end of the cannula which is expandable between a contracted condition and an enlarged condition, and an occluder which is expandable between a contracted condition and an expanded condition;

    making an incision in an aorta;

    introducing a distal end of the cannula into the aorta through the incision while the filter is in the contracted condition;

    expanding the filter until the filter achieves contact with the endoluminal surface of the aorta;

    expanding the occluder to occlude the aorta in a region upstream of the filter, and thereafter contracting the occluder, wherein embolic material dislodged from the aorta is captured in the filter of the cannula;

    contracting the filter; and

    removing the cannula and captured embolic material from the aorta.

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