Patent ID: 6302990
Filing Date: 2001-10-16
Classification: A61L,A61M

Abstract:
A method of making a catheter for delivering an agent, drug or fluid or a selected site within an organism comprising:extruding an inner liner made of a material that is non-reactive with the agent, drug or fluid to be delivered to the selected site within the organism through the catheter, the inner liner having a lumen and a distal end;extruding a tip having at least one orifice for engaging fluid communication with the lumen;molding the tip to a desired configuration;extruding a jacket, the jacket having a distal end;sliding the jacket over the inner liner so that the distal end of the jacket extends distally beyond the distal end of the inner liner;coupling the tip to the distal end of the inner liner; and,wherein the tip includes a radiographic marker attached to the distal end of the catheter, the radiographic marker comprising a semi-spherical portion with a cylindrical nipple emanating away therefrom, the cylindrical nipple being sized to fit snugly within the lumen and held in place by a biocompatible adhesive, the radiographic marker being made of a material opaque to x-rays.