MICRO-CATHETERS AND METHODS OF THEIR MANUFACTURE

摘要

A micro-catheter including an inner primary liner and a plurality of concatenated tubular sections is provided. The primary liner extends substantially from the proximal end to the distal end of the catheter. Each of the tubular sections has a respective inner surface that is fused to the outer surface of the primary liner. The outer diameter of any section is equal to or greater than the outer diameter of any other more distally located section. Each of the tubular sections may have different physical properties and dimensions for making customized micro-catheter profiles.