Bioadhesive hydrogels

A - Human Necessities – 61 – L

Patent

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A61L 24/04 (2006.01)

Patent

CA 2711596

A method of forming and the resulting bioadhesive hydrogel composition for repairing or supplementing a nucleus pulposus of an intervertebral disc comprises at least a first component, a second component and a third component, wherein the first component, the second component and the third component are crosslinked. The first component comprises an amine-containing polymer component at a concentration from about 0.1% weight by weight to about 13.65% weight by weight. The second component comprises a hydrophilic polymer or pre-polymer component at a concentration from about 3% weight by weight to about 35% weight by weight. The third component comprises an aldehyde component at a concentration from about 0.1% weight by weight to about 30% weight by weight. A method of repairing or supplementing a nucleus pulposus of an intervertebral disc comprises implanting the bioadhesive hydrogel composition in a patient.

L'invention concerne un procédé de formation d'une composition d'hydrogel bioadhésif pour réparer ou compléter un noyau gélatineux d'un disque intervertébral. La composition comprend au moins un premier composant, un deuxième composant et un troisième composant, le premier composant, le deuxième composant et le troisième composant étant réticulés. Le premier composant comprend un composant polymère contenant une amine à une concentration d'environ 0,1 % en poids à environ 13,65 % en poids. Le deuxième composant comprend un composant polymère ou un prépolymère hydrophile à une concentration d'environnement 3 % en poids à environ 35 % en poids. Le troisième composant comprend un composant aldéhyde à une concentration d'environ 0,1 % en poids à environ 30 % en poids. Un procédé de réparation ou de complémentation d'un noyau gélatineux d'un disque intervertébral comprend l'implantation de la composition d'hydrogel bioadhésif dans un patient.

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