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Methods for emboli containment

  • US 6,569,148 B2
  • Filed: 01/25/2001
  • Issued: 05/27/2003
  • Est. Priority Date: 05/20/1996
  • Status: Expired due to Fees
First Claim
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1. A method of treating a blood vessel, the method comprising:

  • delivering a first catheter having a lumen in fluid communication with a distal opening in the first catheter into the blood vessel;

    delivering a guidewire through the lumen of the first catheter into the blood vessel, the guidewire having a proximal end and a distal end and an occlusive device disposed along the distal end, the occlusive device being actuatable between a nonexpanded state and an expanded state;

    delivering a therapy catheter over the guidewire and through the lumen of the first catheter until a distal end of the therapy catheter is proximal to the occlusive device and near a treatment site;

    actuating the occlusive device into the expanded state within the vessel at a location distal to a treatment site;

    performing therapy on the treatment site using the therapy catheter;

    withdrawing the therapy catheter from the blood vessel;

    delivering an irrigation catheter over the guidewire until a distal end of the irrigation catheter is proximal to the occlusive device and distal to the distal opening of the first catheter;

    supplying irrigation fluid through the irrigation catheter into the blood vessel; and

    drawing blood and irrigation fluid from the blood vessel into the distal opening of the first catheter while the blood vessel is occluded only by the occlusive device, whereby particles in the blood vessel proximal to the occlusive device are carried by the blood and the irrigation fluid from the vessel into the distal opening and through the lumen of the first catheter.

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