Biomaterial composition and method for preparing same

Details Biomaterial composition and method for preparing same Biomaterial composition and method for preparing same

A - Human Necessities

61

L

A61L 27/00 (2006.01) A61L 27/46 (2006.01) A61L 27/50 (2006.01)

Patent

CA 2159739

A composition for a biomaterial for the resorption/substitution of supporting tissue, tooth substance, bony tissue and osteoarticular tissue. The composition comprises 40-75 wt % of an inorganic phase including either a mixture of tricalcium phosphate .beta. (A) and hydroxyapatite (B), with an A/B ratio of 20/80-70/30, or calcium-titanium-phosphate (Ca(Ti)¿4? (PO¿4?)¿6?) (C); and 60-25 wt % of a liquid phase including an aqueous solution of a cellulose-derived polymer. The composition is ready-to-use, sterile and injectable.

L'invention a pour objet une composition pour bio-matériau de résorption/substitution de tissus de soutien, dentaires, osseux et ostéo- articulaires composée de: 40 à 75 % en poids d'une phase minérale comprenant soit un mélange de phosphate tricalcique .beta. (A) et d'hydroxyapatite (B), dans un rapport A/B compris entre 20/80 et 70/30, soit du calcium-titane- phosphate (Ca(Ti)4 (PO4)6) (C), et de 60 à 25 % en poids d'une phase liquide comprenant une solution aqueuse d'un polymère dérivé de la cellulose. Cette composition est "prête à l'emploi", stérile et injectable.

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