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French medtech company uses Solvay PSU in implantable brain shunts and access ports

Solvay Specialty Polymers (Alpharetta, GA) announced that French medical device manufacturer Sophysa (Orsay) uses its Eviva polysulfone (PSU) resin to fabricate implantable brain shunt valves and access ports. Eviva PSU is part of the company's Solviva Biomaterials line for implantable medical devices. Solvay made the announcement at the Eurospine conference in Lyon, France, this week.

Sophysa offers a complete range of CE-marked implantable brain shunts for the treatment of hydrocephalus as well as implantable access ports for chemotherapy and morphine therapy. These products are injection molded at the company's ISO 13485–certified facility in Besançon, France.

Sophysa said in a press release that it chose Eviva PSU for both of these applications because of the material's tensile strength, transparency, and regulatory compliance.

Eviva PSU is a transparent resin that offers toughness and strong biocompatibility, according to Solvay. The material maintains its dimensional tolerance right out of the mold and requires no machining. It is a rigid thermoplastic that doesn't absorb fluids and is artifact-free for effective MRI imaging.

In addition to Eviva PSU, the Solviva Biomaterials line includes Zeniva polyetheretherketone, which boasts a modulus very close to that of bone, plus toughness, biocompatibility, and fatigue resistance; Veriva polyphenylsulfone, which combines toughness with transparency and biocompatibility; and Proniva self-reinforced polyphenylene, one of the world's stiffest and strongest unreinforced thermoplastics offering biocompatibility and hardness.

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