Machinable preformed calcium phosphate bone substitute...

Details Machinable preformed calcium phosphate bone substitute... Machinable preformed calcium phosphate bone substitute...

A - Human Necessities

61

L

A61L 27/12 (2006.01) A61F 2/28 (2006.01) A61L 27/46 (2006.01) C01B 25/32 (2006.01)

Patent

CA 2470295

The present invention provides machinable calcium phosphate bone substitute material implants (100) having mechanical properties comparable to those of natural bone. The implants include intimately mixed solid precursor materials (102) that react under physiological conditions to form poorly-crystalline hydroxyapatite and eventually are remodeled into bone in vivo. The implants can include a biocompatible polymer to increase density and strength and control resorbability.

L'invention concerne des implants usinables en substitut osseux en phosphate de calcium, ces implants ayant des propriétés mécaniques comparables à celles de l'os naturel. Lesdits implants sont composés de matériaux précurseurs solides, intimement mêlés et réagissant dans des conditions physiologiques pour former de l'hydroxyapatite faiblement cristalline, pour être finalement remodelés dans l'os in vivo. Les implants selon l'invention peuvent contenir un polymère biocompatible pour accroître leur densité et leur résistance et contrôler leur résorbabilité.

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