Braided Tubing for Medical Applications
DUKE’s wire and filament braided products and braid reinforced tubing are ideal for catheter shafts and other medical applications where flexibility, torque response, pushability, axial stiffness, kink resistance, crush resistance, resistance to ovalization, electrical shielding, or higher burst pressure are required.
With in-house spooling and a wide range of stock wire and polymer filament inventory, we provide lead times as short as one week for custom braid reinforced tubing. Multiple ends, 16, 24, or 48 carriers, variable braid angles, dense pics per inch, axial elements woven into the braid, flat and round wire ends as small as 0.0005”, diameters as small as 0.2mm and as large as 17mm and more are available. We can braid single lumens, multi-lumens, eccentric lumens, single- and multi-lumen tapered tubing—we can even add wire braiding to a single lumen within a multi-lumen configuration.
Custom Configurations for Braided Tubing
Using state-of-the-art computer controlled equipment, DUKE Extrusion can control and customize the braid configuration of our wire braiding for optimum effectiveness in your medical application. Our advanced, proprietary braiding techniques allow compression loads to be increased, which helps our braided tube avoid buckling during excessive compression loading of retrievable, implantable medical devices such as catheters, stent grafts, and heart valves.
Braided Tube Patterns
Braid patterns are created by controlling the pitch of the filament, the filament gauge size, and filament shape (round, flat, etc.). Examples of patterns for braided tubes include “standard” 1 over 2 under 2, diamond patterns, and 1 over 1 under. Patterns can vary down the length of a single shaft and increase or decrease the flexibility and stiffness of the braided tubing.
Material Options for Braided Tubing
Common filaments used in braided tubing include flat or round metal wire (including stainless steel, nitinol, and others), Kevlar, fiberglass, carbon fiber, PEN, and PET. DUKE Extrusion are experts at selecting the right braiding material and pattern for customers’ needs, and we will work with you to create the ideal solution for medical or other applications.