Enhancing Mobility: BASF’s Cellasto® Propels Össur’s Next-Gen Prosthetic Innovation

Enhancing Mobility: BASF’s Cellasto® Propels Össur’s Next-Gen Prosthetic Innovation

(IN BRIEF) At CHINAPLAS 2025 in Shenzhen, BASF presented Össur’s Pro-Flex® Terra foot prosthesis, featuring BASF’s Cellasto® microcellular material that emulates the natural motion of human muscles and tendons. The prosthetic foot, with its innovative three-step foam design, adapts to various walking conditions without requiring adjustments, ensuring durable performance across different environments. Extensive testing, including a lifecycle assessment with over two million steps, confirmed that Cellasto® maintains its performance while being tailored to nine specific user categories. This collaboration between BASF and Össur underscores a commitment to merging comfort, flexibility, and energy return in prosthetic design to enhance user mobility.

(PRESS RELEASE) LEMFOERDE, 2-Apr-2025 — /EuropaWire/ — At CHINAPLAS 2025 in Shenzhen, BASF is showcasing its breakthrough contribution to prosthetic technology through Össur’s Pro-Flex® Terra foot prosthesis, which incorporates BASF’s innovative Cellasto® microcellular material. This material mimics human muscle-tendon dynamics, providing exceptional softness, flexibility, and energy return. Its distinctive three-step foam design adapts effortlessly to diverse walking conditions—ranging from leisurely strolls and hiking to high-impact sports—without the need for any mechanical or electronic adjustments, ensuring consistent and robust performance even in extreme temperatures and varied environments like the beach, pool, or shower. Rigorous lifecycle tests, including over two million overloaded steps, have validated the durability and performance of Cellasto®, with foam densities carefully optimized for nine specific user weight and size categories. BASF’s application development engineers supported the project from concept to production using an efficient tooling strategy on fully automated mold lines.

Felix Starker, Product Designer at Össur, explained, “Our ambition was to combine the best features of multiple prosthetic feet into one. The Pro-Flex® Terra blends the comfort needed for everyday use with the high energy return required for active lifestyles, enhancing mobility and quality of life.” Bjoern Kophstahl, Vice President of Global Business Management for Cellasto®, added, “Cellasto® strikes a unique balance between comfort and functionality, and we are proud to partner with Össur to deliver tailored prosthetic solutions that improve mobility for users worldwide.”

About BASF

At BASF, we create chemistry for a sustainable future. Our ambition: We want to be the preferred chemical company to enable our customers’ green transformation. We combine economic success with environmental protection and social responsibility. Around 112,000 employees in the BASF Group contribute to the success of our customers in nearly all sectors and almost every country in the world. Our portfolio comprises, as core businesses, the segments Chemicals, Materials, Industrial Solutions, and Nutrition & Care; our standalone businesses are bundled in the segments Surface Technologies and Agricultural Solutions. BASF generated sales of €65.3 billion in 2024. BASF shares are traded on the stock exchange in Frankfurt (BAS) and as American Depositary Receipts (BASFY) in the United States. Further information at www.basf.com.

About BASF’s Performance Materials division

BASF’s Performance Materials division leads the transformation of the plastics industry by merging sustainability with a competitive edge. Our broad material competencies and product portfolio, backed by deep industry understanding, make us the ideal one-stop-shop. With dedicated material-focused teams and strong R&D power, we deliver industry-leading technologies and expertise to our customers worldwide. Our global network ensures a competitive advantage through superior innovations, regional proximity, and tailor-made solutions that meet local market demands. We are committed to enhancing performance and efficiency across sectors such as automotive, consumer goods, industrial applications, and construction. With BASF, our partners embark on #OurPlasticsJourney towards a more circular and sustainable future. In 2024, the Performance Materials division achieved global sales of €6.8 billion.

Join #OurPlasticsJourney on LinkedIn  https://on.basf.com/PM_LinkedIn and in our newsletter  https://on.basf.com/PM_Newsletter. Further information at https://www.performance-materials.basf.com.

About Össur

Össur is a leading global provider of innovative prosthetics and bracing & supports that help people live a Life Without Limitations®. A recognized “Technology Pioneer”, Össur focuses on improving people’s mobility through the delivery of solutions that advance patient care. Significant investment in research and development has led to over 2,100 patents and numerous award-winning designs, renowned for advancing the Orthotic & Prosthetic (O&P) industry. Össur is part of Embla Medical (Nasdaq Copenhagen: EMBLA) http://www.ossur.com

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