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Methods and devices for implants with improved cement adhesion
专利权人:
Weidong Tong
发明人:
Weidong Tong,Steve Leisinger,Lawrence Salvati,John Bonitati
申请号:
US12696880
公开号:
US08475536B2
申请日:
2010.01.29
申请国别(地区):
US
年份:
2013
代理人:
摘要:
Biomedical implants (e.g., orthopedic implants) with modified surfaces that can enhance a cement bonds strength (e.g., tensile, shear, and/or fatigue) are disclosed, along with methods of manufacturing and using such implants. The implants can exhibit a variety of physical, chemical, or process-derived features which can enhance cement bonding. For instance, the implant surface can exhibit particular roughness values, and/or be substantially free of non native material. Processes for producing such implants can include providing a first roughened implant surface, which can be produced, for example, by particle blasting. A treatment formulation can be applied to the first roughened surface to create a second roughened surface that exhibits enhanced cement bonding properties relative to the first roughened surface. In some instances, the first roughened surface and the second roughened surface can exhibit substantially similar Ra values. The second roughened surface can exhibit a negative Rsk value.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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