Composite biomaterials for bone implants

Details Composite biomaterials for bone implants Composite biomaterials for bone implants

A - Human Necessities

61

L

A61L 27/44 (2006.01) A61F 2/28 (2006.01)

Patent

CA 2540555

The invention relates to bone implant biomaterials comprising an inorganic phase which is formed by calcium salts, mainly by phosphates and hydroxy- and carbonate-apatites, and an organic phase containing polymers derived from vinyl acetate and crotonic acid. The inventive biomaterials, which can be dense or porous, have different reabsorption speeds when used as implants in living tissue depending on the type and proportion of the constituent phases thereof. Said biomaterials can also be used as supports in the production of systems for the controlled release of pharmaceuticals.

L'invention concerne des biomatériaux d'implants osseux constitués d'une phase inorganique formée par des sels de calcium, principalement des phosphates, des hydroxyapathites et des carbonato-apathites et d'une phase organique composée de polymères dérivés de l'acétate de vinyle et de l'acide crotonique. Ces biomatériaux, lesquels peuvent être denses ou poreux, présentent différentes vitesses de réabsorption lorsqu'ils sont utilisés comme implants dans le tissu vivant, selon la nature et la proportion des phases constituantes, ils peuvent également faire office de supports dans la fabrication de systèmes de libération lente de médicaments.

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