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Thrombectomy apparatus and method

  • US 8,430,837 B2
  • Filed: 02/05/2008
  • Issued: 04/30/2013
  • Est. Priority Date: 02/05/2007
  • Status: Active Grant
First Claim
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1. A method of removing thrombi, the method comprising the steps of:

  • providing a thrombectomy apparatus comprising an elongate shaft defining a high pressure lumen and a low pressure lumen, the high pressure lumen terminating near a distal end of the low pressure lumen, and an expandable capture basket disposed generally adjacent the distal end of the low pressure lumen;

    wherein the expandable capture basket includes an actuatable frame and a blood permeable membrane disposed over at least a portion of the frame;

    advancing the thrombectomy apparatus to a desired location within a patient'"'"'s vasculature;

    expanding the expandable capture basket;

    capturing thrombi within the expandable capture basket;

    providing a source of pressurized fluid in fluid communication with the high pressure lumen;

    breaking apart the captured thrombi using the pressurized fluid; and

    providing suction to the low pressure lumen to evacuate the broken apart thrombi.

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