BASF and leading global prosthetic provider Össur co-created the Pro-Flex Terra foot prosthesis with BASF’s cutting-edge Cellasto. The foot prosthesis will be presented at CHINAPLAS 2025.

Cellasto is characterized by progressive stiffness and high impact strength, combines softness and flexibility with extraordinary energy return, allowing the Pro-Flex Terra foot prosthesis to embody an intuitive response behavior and replicate closely the human muscle-tendon motion.

The three-step Cellasto foam design addresses the limitations of traditional two-step designs. It adapts to a wide range of load conditions without mechanical or electrical adjustment, making it suitable for activities like slow walking, hiking, and high-impact sports in both extremely cold and hot environments.

Össur’s foot prosthesis featuring Cellasto’s advanced three-step foam design.

Additionally, it is ideal for use at the beach, pool, or in the shower. Users noted that they were rediscovering aspects of their mobility while using it.

Rigorous tests, including a full lifecycle assessment with over two million overloaded steps, confirmed the robustness and performance of Cellasto, which maintained its quality as well as on day one, even after extensive testing.

The different foam densities for the serial product were fine-tuned during user tests to work in harmony with 9 specific user weight and size categories.

“Cellasto offers a unique balance between comfort and functionality. We take great pride in partnering with Össur to enhance mobility and quality of life for prosthetic foot users worldwide,” said Bjoern Kophstahl, Vice President, Global Business Management for Cellasto.

BASF and leading global prosthetic provider Össur co-created the Pro-Flex Terra foot prosthesis with BASF’s cutting-edge Cellasto. The foot prosthesis will be presented at CHINAPLAS 2025.

Cellasto is characterized by progressive stiffness and high impact strength, combines softness and flexibility with extraordinary energy return, allowing the Pro-Flex Terra foot prosthesis to embody an intuitive response behavior and replicate closely the human muscle-tendon motion.

The three-step Cellasto foam design addresses the limitations of traditional two-step designs. It adapts to a wide range of load conditions without mechanical or electrical adjustment, making it suitable for activities like slow walking, hiking, and high-impact sports in both extremely cold and hot environments.

Össur’s foot prosthesis featuring Cellasto’s advanced three-step foam design.

Additionally, it is ideal for use at the beach, pool, or in the shower. Users noted that they were rediscovering aspects of their mobility while using it.

Rigorous tests, including a full lifecycle assessment with over two million overloaded steps, confirmed the robustness and performance of Cellasto, which maintained its quality as well as on day one, even after extensive testing.

The different foam densities for the serial product were fine-tuned during user tests to work in harmony with 9 specific user weight and size categories.

“Cellasto offers a unique balance between comfort and functionality. We take great pride in partnering with Össur to enhance mobility and quality of life for prosthetic foot users worldwide,” said Bjoern Kophstahl, Vice President, Global Business Management for Cellasto.