Compagnie Generale des Etablissements Michelin had two patents in advanced materials during Q4 2023. The patents filed by Compagnie Generale des Etablissements Michelin in Q4 2023 involve processes and compositions for suturelessly fixing a surface-modified polyester textile to Nitinol wire in implantable devices. The first composition includes layers of Nitinol, passivation layer, surface-modified polyester layer, and tie layer. The second composition involves a polymer of glycerol and sebacic acid with a catechol group. The processes include forming the surface-modified polyester textile and the polymer with catechol group. GlobalData’s report on Compagnie Generale des Etablissements Michelin gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Compagnie Generale des Etablissements Michelin grant share with advanced materials as a theme is 50% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Articles, compositions, and methods for sutureless implants (Patent ID: US20230330308A1)
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The patent filed by the Compagnie Generale des Etablissements Michelin describes a process and composition for creating implantable devices using a surface-modified polyester textile suturelessly fixed to Nitinol wire. The implantable devices include a first polymer of glycerol and sebacic acid with a catechol group, providing a sutureless graft option. The process involves modifying the surface of the polyester textile to include crosslinkable groups, such as hydroxy and carboxyl groups, and binding the polymer of glycerol and sebacic acid to the surface-modified textile using a diisocyanate crosslinker.
Furthermore, the implantable devices also feature a passivation layer comprising the first polymer of glycerol and sebacic acid, which is coated on the Nitinol wire. The catechol groups in the passivation layer bind to the surface of the Nitinol wire, providing a non-immunogenic and resorbable adhesive bond-line. The tie layer in the device, made of a second polymer of glycerol and sebacic acid, acts as a bridge between the passivation layer and the surface-modified polyester textile, ensuring a secure and durable connection. Overall, the patent outlines a comprehensive method for creating innovative implantable devices with enhanced biocompatibility and performance.
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