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Temporary vascular filter guide wire

  • US 20020045916A1
  • Filed: 06/22/2001
  • Published: 04/18/2002
  • Est. Priority Date: 12/06/1999
  • Status: Abandoned Application
First Claim
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1. A vascular filter guide wire for directing placement of a catheter with respect to a blood vessel lesion and filtering particulate matter dislodged by treatment of said vessel, said guide wire including:

  • an elongated flexible core wire having a proximal end and a distal end for insertion and steerage through a patient'"'"'s vasculature to a position downstream of said lesion;

    a tubular flexible shaft slidably disposed along said core wire, said shaft including a proximal portion and a distal portion disposed proximally of said core wire distal end for placement downstream of said lesion; and

    a collapsible filter coupled at its proximal end to said distal portion of said shaft and at its distal end to said core wire, said filter operable in response to the relative is displacement between said shaft and said core wire to radially extend outwardly within said vasculature and trap particulate matter arising from the treatment of said lesion.

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