Porous calcium phosphate bone material

Details Porous calcium phosphate bone material Porous calcium phosphate bone material

A - Human Necessities

61

F

A61F 2/00 (2006.01)

Patent

CA 2632785

Porous calcium phosphate implant compositions that approximate the chemical composition of natural bone mineral are provided. In addition to calcium phosphate, the compositions include an effervescent agent to promote the formation of interconnected pores and a cohesiveness agent to maintain the shape and hardness of the hardened composition. When introduced at an implant site, the calcium phosphate compositions are remodeled into bone. Methods for using the calcium phosphate compositions, e.g., to repair or replace bone, are also provided.

La présente invention concerne des compositions d'implant de phosphate de calcium poreux qui sont proches de la composition chimique du minéral d'os naturel. En plus du phosphate de calcium, les compositions comprennent un agent effervescent pour favoriser la formation de pores interconnectés et un agent de cohésion pour maintenir la forme et la dureté de la composition durcie. Lorsqu'elles sont introduites en un site d'implant, les compositions de phosphate de calcium sont remodelées en os. La présente invention concerne en outre des procédés pour utiliser les compositions de phosphate de calcium, par exemple, pour réparer ou remplacer de l'os.

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