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CATHETER SYSTEM FOR CONNECTING ADJACENT BLOOD VESSELS

  • US 20070203515A1
  • Filed: 04/13/2007
  • Published: 08/30/2007
  • Est. Priority Date: 01/25/2006
  • Status: Abandoned Application
First Claim
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1. A catheter system for piercing a first wall of a first blood vessel, defined by a first vessel wall and having a first diameter, and a second wall of a second blood vessel to create a fistula between the blood vessels, the system comprising:

  • a first catheter having an outer surface and a distal end insertable to a position wherein the distal end is adjacent to a site within the first blood vessel for creating the fistula;

    a resizable portion for stabilizing the first catheter within the first blood vessel, the resizable portion disposed on the outer surface so that a first arc of the outer surface is unobstructed by the resizable portion, the resizable portion being manipulable between a nominal configuration and an active configuration, the nominal configuration having a diameter less than the first diameter, and the active configuration having a diameter substantially equal to the first diameter; and

    a piercing tool for creating the fistula, the piercing tool disposed adjacent the distal end of the catheter and extendable through the first arc of the outer surface.

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