Reinforced catheter tip via roller extrusion

Abstract

With smaller gauge catheters, forming distal tip structures, termed “tipping,” can be increasingly challenging. The thin wall-thicknesses of these small gauge catheters provide a reduced cross-sectional surface area with which to couple the distal tip structure to. This increases the risk of failure of the device either during manufacture or during use. To address the foregoing, embodiments include forming and placing a spiral plug within a lumen of a proximal section of the catheter. The spiral plug co-operates with the catheter to provide an increased wall thickness and an increased cross-sectional surface area with which to couple a distal tip structure thereto. Further the spiral plug can align the lumen of the catheter body with a lumen of the distal tip structure. The spiral plug can be sacrificial and provide increased material across the joint, mitigating joint failure.

Dependencies are inferred from the claim text.