Breakthroughs in Multi-Layered Tubing Extrusion Technology Enables Next-Generation Catheter-Based Medical Devices
Marlborough, Mass. Recent technical advances in extrusion technology have enabled multi-layer tubing to be produced on sophisticated, fully-integrated extrusion lines using closed loop and statistical process control to ensure the most accurate, repeatable dimensional control is maintained throughout the extrusion run.
According to Dominic Feeley, Technical Accounts Manager of ANSAmed, a Vention Medical company, the recent manufacturing breakthroughs have enabled his company to produce tri-layer tubing with outer diameter (OD) tolerances of +/-0.0003” and wall thicknesses of less than 0.0016”.
“We are now able to produce thin-walled, large bore, multi-layer tubing, ideal for delivery systems for emerging therapies such as percutaneous replacement of diseased heart valves,” states Feeley. At the other end of the scale, he notes, recent trends have emerged for tapered microbore multi-layer structures enabling balloon catheters to reach even further into the anatomy through reduced profiles.
Multi-layer extrusion technology is primarily used to produce tubing with concentric layers of different thermoplastics, each of which provides a specific function or benefit, such as lubricity or drug-eluting or enhanced mechanical properties.
“We’re continuing to evaluate new material combinations with our partners and push the extrusion process boundaries to develop multi-layer tubing with increased functionality that will deliver improved therapeutic outcomes,” adds Feeley. “Also, recent market shortages in medical nylon grades have led to an increased interest in various combinations of alternative replacement materials in multi-layer configurations.”
A white paper entitled Developments in Multi-Layer Medical Tubing Technology is now available that discusses in detail the manufacturing process, materials, and various applications for the new multi-layer tubing.
About Vention Medical
Vention Medical is an innovative medical device solutions partner offering clients more than 30 years of experience in all phases of design, engineering, component manufacturing, and finished device assembly. Vention Medical specializes in components and services used in interventional and minimally invasive products, including medical balloons, advanced extrusions and heat shrink tubing, clean room injection molding, assembly and packaging services.