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Removable thrombus filter

  • US 6,569,183 B1
  • Filed: 10/05/2000
  • Issued: 05/27/2003
  • Est. Priority Date: 09/03/1999
  • Status: Expired due to Fees
First Claim
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1. A thrombus filter configured for placement within a blood vessel lumen defined by a blood vessel wall, comprising:

  • a body member having a proximal portion and a distal portion;

    a plurality of wires, each wire having a joined end, a free end and an outer surface;

    the joined end of each wire being fixedly attached to the body member;

    each wire radiating away from the body member to form a helix of expanding diameter;

    each wire being configured so that the wire travels along the wall of the blood vessel at an acute angle relative to a longitudinal axis of the lumen of the blood vessel, wherein each wire is generally tapered so that a free end of each wire is generally smaller than other portions thereof.

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