Francisco J. Garcia Saban;Juan Carlos Garcia Saban;Miguel Angel Garcia Saban
发明人:
Francisco J. Garcia Saban,Juan Carlos Garcia Saban,Miguel Angel Garcia Saban
申请号：
US12720664
公开号：
US08277577B2
申请日:
2010.03.09
申请国别(地区):
US
年份:
2012
代理人:
摘要：
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 aluminum 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.
