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Orthopedic Implant
专利权人:
Milija MITROVIC;ZM Praezisionsdentaltechnik GmbH
发明人:
Milija MITROVIC
申请号:
US16066117
公开号:
US20190298535A1
申请日:
2016.12.28
申请国别(地区):
US
年份:
2019
代理人:
摘要:
An orthopedic implant in the form of a femoral component of a knee endoprosthesis has sliding tribological surfaces formed by inserts of a ceramic material based on zirconium dioxide or aluminum oxide, which are inserted and transition flushly into a metallic base body. The inserts are connected to the base body by a silicate ceramic solder, which is solidified or hardened in a ceramic firing, and by a silicate glass solder. Discharge channels in the metallic base body help to produce a homogeneous glass solder layer and to avoid an excessively intense heat treatment of the solder connection, which could lead to fractures in the titanium oxide layer of the base body. Because a coating of a softer glass solder may be additionally provided on the sliding tribological surfaces of the inserts, the abrasive wear is further reduced and the service life is further increased.
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