An implantable material for the repair, augmentation, or...

A - Human Necessities – 61 – L

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A61L 27/22 (2006.01) A61L 27/46 (2006.01) A61L 27/56 (2006.01)

Patent

CA 2728822

A method for the preparation of an implantable material for the repair, augmentation or replacement of bone from a fibroin solution, the method comprising the steps of: preparing a gel from the fibroin solution; preparing a material by subjecting the gel to one or more steps of freezing and thawing the gel, wherein the step of preparing the gel from the fibroin solution is performed in the presence of phosphate ions. The material may be treated with calcium ionstoform a fibroin-apatite. A further method comprises the step of treating the material with an isocyanate. The invention also extends to a method for the preparation of an implantable material, wherein a regenerated fibroin solutionis used. Also, there is an implantable material and an implant.

Linvention concerne un procédé de préparation dun matériau implantable destiné à la réparation, à laugmentation ou au remplacement dun os à partir dune solution de fibroïne, le procédé comprenant les étapes consistant à : préparer un gel à partir de la solution de fibroïne; préparer un matériau en soumettant le gel à une ou plusieurs étapes de congélation et de décongélation du gel, ladite étape de préparation du gel à partir de la solution de fibroïne étant effectuée en présence dions de phosphate. Le matériau peut être traité avec des ions de calcium pour former un mélange fibroïne-apatite. Un procédé supplémentaire comprend létape consistant à traiter le matériau avec un isocyanate. Linvention concerne également un procédé de préparation dun matériau implantable, dans lequel est utilisée une solution de fibroïne régénérée. Linvention concerne aussi un matériau implantable et un implant.

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