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Intervertebral disc endoprosthesis
专利权人:
Christine Niess
发明人:
Christine Niess,Roman Preuss,Norbert Schneider,Matthias Grassel
申请号:
US13001205
公开号:
US09237955B2
申请日:
2009.07.01
申请国别(地区):
US
年份:
2016
代理人:
摘要:
An intervertebral disc endoprosthesis for implantation in the spinal column, with an upper end plate and a lower end plate for securing respectively to the bones of the vertebral body, and with a slide bearing which is arranged between the end plates and is composed of slide bodies that are designed to slide on each other. both end plates are made of plastic and the slide bodies are made of ceramic, the slide bodies are encapsulated by the plastic of the end plates and the surface areas of the slide bodies encapsulated by the plastic of the end plates have surface area enlargements by comparison with flat surfaces. To ensure that the slide bodies are connected fixedly to the end plates in a manner secure against twisting, it is proposed that the surface area enlargements are elevations or depressions on the slide bodies.
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