Metal implants

A - Human Necessities – 61 – L

Patent

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Details

A61L 27/06 (2006.01) A61L 27/04 (2006.01) A61L 27/36 (2006.01) A61L 27/54 (2006.01)

Patent

CA 2654235

An implant with a metal structure for use in a surgical procedure, in which at a region of the implant to be in contact with bone the metal structure is provided with a roughened surface. The roughened region is then provided with a ceramic coating comprising hydroxyapatite by a thermal spraying process. Biocidal ions of silver are absorbed into the ceramic coating, and gradually leach out into body fluids after implantation. The hydroxyapatite enhances bone regrowth into the implant, while the silver ions suppress infection.

La présente invention concerne un implant doté d'une structure métallique et conçu pour être utilisé dans une opération chirurgicale, la structure métallique présentant une surface rugueuse dans une région de l'implant destinée à venir en contact avec un os. La région rugueuse est ensuite pourvue d'un revêtement céramique comprenant de l'hydroxyapatite par une projection à chaud. Les ions biocides d'argent sont absorbés dans le revêtement céramique, et progressivement lessivés dans des fluides corporels après l'implantation. L'hydroxyapatite favorise la régénération osseuse dans l'implant, alors que les ions d'argent évitent une infection.

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