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Self furling umbrella frame for carotid filter

  • US 6,638,294 B1
  • Filed: 08/30/2001
  • Issued: 10/28/2003
  • Est. Priority Date: 08/30/2001
  • Status: Expired due to Term
First Claim
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1. A system for capturing embolic or foreign material in a vessel, comprising:

  • an elongate tubular member having a proximal end and a distal end;

    an elongate wire having a proximal end and a distal end, the elongate wire being positionable within the elongate tubular member;

    a capturing structure operatively connected to the elongate wire, having an expanded condition and a contracted position, the capturing structure further having an inner surface and an outer surface forming a parachute-like structure in the expanded condition; and

    a plurality of inner struts attached to the capturing structure inner surface and a plurality of outer struts attached to the capturing structure outer surface, the capture device assuming a self folding position in the contracted condition as the outer struts rotate with respect to the inner struts.

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