Implant composition with controlled resorption rate for...

A - Human Necessities – 61 – L

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A61L 27/58 (2006.01) A61L 27/44 (2006.01)

Patent

CA 2454122

An implant composition having controlled resorption rate in vivo for stimulating bone growth, a method of making the implant composition, and a kit of implant materials are disclosed. The implant composition includes a calcium sulfate compound, polymer containing particles, and a setting agent for setting the calcium sulfate compound and the polymer containing particles into a heterogeneous solid composition. Upon setting, the calcium sulfate compound forms a matrix and the polymer containing particles settled within the matrix. The resorption rate of the implant composition in vivo can be controlled of between eight and twenty-four weeks, which substantially matches the rate of bone growth. The implant composition of the present invention can be used for the repair, augmentation, and other treatment of bone.

L'invention concerne une composition d'implant présentant une vitesse de résorption régulée in vivo pour stimuler la croissance osseuse. En outre, l'invention concerne, d'une part, un procédé permettant de fabriquer la composition d'implant et, d'autre part, une trousse de matériaux d'implant. La composition d'implant comprend un composé de sulfate de calcium, un polymère à teneur en particules et un agent de prise pour assembler le composé de sulfate de calcium et le polymère à teneur en particules en une composition solide hétérogène. A la prise, le composé de sulfate de calcium forme une matrice, le polymère à teneur en particules étant pris dans la matrice. La vitesse de résorption de la composition d'implant in vivo peut être régulée entre huit et vingt quatre semaines, ce qui correspond sensiblement à la vitesse de la croissance osseuse. La composition d'implant décrite dans cette invention peut être utilisée pour la réparation, l'augmentation, ainsi que pour d'autres traitement osseux..

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