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INFUSION TREATMENT AGENTS, CATHETERS, FILTER DEVICES, AND OCCLUSION DEVICES, AND USE THEREOF

  • US 20080103523A1
  • Filed: 10/24/2007
  • Published: 05/01/2008
  • Est. Priority Date: 03/12/2003
  • Status: Abandoned Application
First Claim
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1. An apparatus comprising a cannula having a dimension suitable for percutaneous advancement through a blood vessel, the cannula comprising a proximal end and a distal end;

  • and a filter device having a proximal portion axially coupled to an exterior surface of the cannula at or adjacent the distal end of the cannula, and a distal portion having a first diameter under a first set of conditions and a different second diameter that under a second set of conditions is at least equivalent to an inner diameter of a blood vessel at a treatment region.

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