Bioceramic coated apparatus and method of forming the same

Details Bioceramic coated apparatus and method of forming the same Bioceramic coated apparatus and method of forming the same

B - Operations, Transporting

32

B

B32B 3/26 (2006.01) A61F 2/02 (2006.01) A61L 33/00 (2006.01)

Patent

CA 2571853

The invention relates to a bioceramic coated apparatus and method of forming the same. The apparatus may be a medical implant such as, for example, an orthopedic implant or a dental implant. The bioceramic coating is designed to increase tissue and/or bone growth upon implantation of the apparatus. The apparatus has a valve metal substrate having a nanoporous valve metal oxide surface layer. The nanoporous surface layer contains a plurality of nanopores. The nanopores have adsorbed phosphate ions on at least their interior surfaces. A bioceramic coating is formed on the nanoporous surface and anchored into the nanopores. Optionally, the nanopores are formed into a tapered shape in order to increase adhesion to the bioceramic coating.

L'invention concerne un appareil muni d'un revêtement biocéramique et un procédé de fabrication de l'appareil. L'appareil peut être un implant médical, tel qu'un implant orthopédique ou un implant dentaire. Le revêtement biocéramique est conçu pour accélérer la croissance tissulaire et/ou osseuse après implantation de l'appareil. L'appareil comprend un substrat de métal de valve présentant une couche superficielle nanoporeuse en oxyde de métal de valve. La couche superficielle nanoporeuse contient une pluralité de nanopores. Au moins les surfaces intérieures des nanopores comprennent des ions de phosphate adsorbés. Un revêtement biocéramique est formé sur la surface nanoporeuse et fixé dans les nanopores. Les nanopores peuvent facultativement présenter une forme conique destinée à renforcer l'adhérence au revêtement biocéramique.

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