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News

Radiopaque catheters use polyether-block-amide thermoplastic elastomer (PEBA)

RTP Company : 15 March, 2013  (Application Story)
When Plásticos y Materias Primas (PyMPSA), a Mexican manufacturer of medical devices and components, wanted to develop a new catheter for epidural anesthesia, it specified a biocompatible nylon material that was radiopaque so it could be readily observed during x-ray imaging to ensure proper placement. The first efforts were disappointingm but custom compounder RTP developed a custom material for the application.
Radiopaque catheters use polyether-block-amide thermoplastic elastomer (PEBA)

RTP developed a custom RTP 2900 Series polyether-block-amide thermoplastic elastomer (PEBA) compound for the catheter that included radio pacifiers and passed ISO 10993 biocompatibility testing conducted by PyMPSA. It solved the air bubble problem, leading to the successful development of the new SET ESPICAT catheter.

The success of the project has led to PyMPSA working with RTP to produce catheters in several different colours to help medical and manufacturing personnel quickly identify different diameter versions.

"With our original supplier, the extruded nylon ended up with a lot of air bubbles, so it was far from meeting the quality criteria we and our customers demand," explained engineer Claudia Mancilla Ramirez. Her design team was assigned to work with PyMPSA's sister organization, PiSA Farmacéutica Mexicana, one of the country's largest pharmaceutical companies, to develop the catheter. "RTP developed a custom material for our application, and backed it up with technical support. They sent an extrusion technician here that worked side-by-side with our extrusion engineer Lily Díaz to ensure production of a high quality product."

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