The present invention provides catheter apparatus and catheterization methodology for generating an arteriovenous fistula or a veno-venous fistula on-demand between closely associated blood vessels and at a chosen anatomic site in-vivo. The catheter apparatus is preferably employed in pairs, each catheter...http://www.google.co.uk/patents/US6669709?utm_source=gb-gplus-sharePatent US6669709 - Catheter apparatus and methodology for generating a fistula on-demand between closely associated blood vessels at a pre-chosen anatomic site in-vivo
Catheter apparatus and methodology for generating a fistula on-demand ...