A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 8/00 (2006.01) A61L 27/06 (2006.01)
Patent
CA 2699036
The invention relates to a method for obtaining a surface of a titanium-based metal implant intended to be inserted into bone tissue, comprising: (a) projecting particles of aluminium oxide under pressure on the external area of the implant; (b) chemically treating the sandblasted external area of the implant with an acid composition comprising sulfuric acid and hydrofluoric acid; and (c) thermally treating the sandblasted external area of the implant by heating at a temperature of 200-450°C for 15-120 min. The invention likewise defines a metal implant having said surface. The surface thus obtained has good micrometer-scale roughness with a suitable morphology, as well as a composition which is virtually free of impurities and a thickness which is approximately three times the thickness of conventional surfaces, which characteristics provide it with very good osseointegration properties.
La invención define un procedimiento para obtener una superficie de un implante metálico a base de titanio destinado a ser insertado en tejido óseo que comprende: (a) proyectar partículas de óxido de aluminio a presión sobre el área externa del implante; (b) tratar químicamente el área externa del implante granallada con una composición ácida que comprende ácido sulfúrico y ácido fluorhídrico; y (c) tratar térmicamente el área externa del implante granallada y tratada químicamente mediante calentamiento a una temperatura de 200-450 °C durante 15-120 min. Asimismo, la invención define un implante metálico que presenta dicha superficie. La superficie así obtenida presenta una buena rugosidad micrométrica de morfología adecuada, así como una composición prácticamente libre de impurezas y un espesor que es aproximadamente el triple del espesor de las superficies convencionales, características que le confieren muy buenas propiedades de osteointegración.
Garcia Saban Francisco J.
Garcia Saban Juan Carlos
Garcia Saban Miguel Angel
Fetherstonhaugh & Co.
Garcia Saban Francisco J.
Garcia Saban Juan Carlos
Garcia Saban Miguel Angel
LandOfFree
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