Manufacture of an endoprosthesis by 3D printing

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Manufacture of an endoprosthesis by 3D printing

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The present invention proposes a method for manufacture of an endoprosthesis, in particular a vascular endoprosthesis, comprising the 3D printing (100) of a hollow membrane made of thermoplastic elastomer, and the fastening (200) of a collapsible metal framework to the hollow membrane in order to form a membrane-framework assembly. The fastening comprises (i) the 3D printing (201) of an additional membrane made of thermoplastic elastomer, the arranging (202) of the collapsible metal framework between the hollow membrane and the additional membrane in order to obtain an assembly, the immersion soaking (204) of the assembly in an organic solvent in order to obtain the membrane-framework assembly, and the drying (205) of the membrane-framework assembly; or (ii) the arranging (212) of the collapsible metal framework on the hollow membrane in order to obtain an assembly, and the dip coating (214) in a solution in an organic solvent, and then the drying (215) of the assembly. . La présente invention propose un procédé de fabrication d'endoprothèse, notamment vasculaire, comprenant l'impression 3D (100) d'une membrane creuse en élastomère thermoplastique et la solidarisation (200) d'une armature métallique repliable sur la membrane creuse pour former un assemblage membrane-armature. La solidarisation comprend (i) l'impression 3D (201) d'une membrane additionnelle en élastomère thermoplastique, la disposition (202) de l'armature métallique repliable entre la membrane creuse et la membrane additionnelle pour obtenir un assemblage, le trempage (204) de l'assemblage dans un solvant organique pour obtenir l'assemblage membrane-armature et le séchage (205) de l'assemblage membrane-armature; ou (ii) la disposition (212) de l'armature métallique repliable sur la membrane creuse pour obtenir un assemblage et l'enduction par trempage (214) dans une solution dans un solvant organique puis séchage (215) de l'assemblage.

Langue: Français

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