Patent ID: 6514264
Filing Date: 2003-02-04
Classification: A61B,A61M

Abstract:
A vasoocclusive coil deployment system for use in placing a coil at a preselected site within a vessel comprising:an elongated flexible catheter having a lumen extending therethrough and having a proximal section and a distal section, said distal section of the catheter being formed of a material having a durometer which exhibits the characteristic that when a fluid pressure is applied to the interior of the catheter the walls of the distal section of the catheter is caused to expand outwardly; an embolic coil assembly comprised of a helically wound flexible coil having proximal and distal ends and a cylindrical headpiece disposed within the proximal section of the coil, said cylindrical headpiece having a passageway through said headpiece and being of a size which permits the passage of air but resists the flow of a liquid, said embolic coil assembly being disposed in fluid-tight engagement with the lumen of the distal section of the catheter; and, a syringe coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby cause the distal section of the catheter to expand outwardly to thereby release the embolic coil.