How to Select Materials for Interventional Catheters? Comparison of Three Materials

Material Selection · In-depth Comparison Guide

How to Choose Interventional Catheter Materials

PEBAX / TPU / PA Properties Explained
Real-shot Cross-sections of Multi-lumen Precision Tubing

When selecting materials for medical catheters, softer does not always mean better, nor does higher rigidity.
Pushability, trackability, kink resistance, tensile strength, elasticity and sterilization compatibility all need to be balanced comprehensively.

This series will break down catheter material selection systematically:

1. Material overview: Suitable application segments for PEBAX, TPU and PA
2. Structural design: How multi-layer co-extrusion and durometer gradient are achieved
3. Process & quality control: Wall thickness tolerance, concentricity, factory testing and sterilization compatibility
4. Final selection guidance: Multi-lumen cross-section design and supplier evaluation

Poor material selection may lead to insufficient pushability, stress concentration at bends, permanent deformation after deflection and other defects.
You can verify your requirements item by item against the functional sections of your product for a more reliable selection.

ANJUN (Suzhou Anjun Precision Plastic Tubing) specializes in precision extrusion of plastic catheters and component fabrication. We work with PEBAX, TPU, PA and other materials, supporting single-layer tubing, multi-layer co-extrusion and durometer gradient structures.

If you are working on catheter selection, bookmark this series. New articles will be released in the coming days.