A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 33/00 (2006.01) A61L 27/48 (2006.01) A61L 27/50 (2006.01)
Patent
CA 2446554
The present invention concerns the preparation of composite biomaterials constituted by hyaluronic acid and the derivatives thereof in combination with polymers that have electrically conductive properties. In particular, the methods of preparing biomedical devices formed by a two- or three-dimensional polysaccharide matrix and by an electrically conductive membrane. The matrix is constituted by hyaluronic acid derivatives in the form of membranes, woven fabrics, nonwoven felts, meshes, gauzes, guide channels or sponges, while the electrically conductive membrane is constituted by a film of polypyrrole (polymer conductor) in combination with hyaluronic acid or a derivative thereof (doping agent).
La présente invention se rapporte à la préparation de biomatériaux composites composés d'acide hyaluronique et de dérivés de cet acide en combinaison avec des polymères présentant des caractéristiques de conductivité électrique. L'invention se rapporte particulièrement à des procédés de préparation de dispositifs biomédicaux formés à partir d'une matrice polysaccharide bi- ou tri-dimensionnelle et d'une membrane électriquement conductrice. Ladite matrice est composée de dérivés d'acide hyaluronique se présentant sous la forme de membranes, tissus, feutres non tissés, filets, gazes, canaux de guidage ou éponges, alors que la membrane électroconductrice est constituée d'un film de polypyrrole (conducteur polymère) associé à de l'acide hyaluronique ou à un dérivé de cet acide (agent dopant).
Abbati Gianluca
Crescenzi Vittorio
Panero Stefania
Renier Davide
Fidia Advanced Biopolymers S.r.l.
Kirby Eades Gale Baker
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