セラミック製骨頭ボールおよび人工関節
- 专利权人:
- 京セラメディカル株式会社
- 发明人:
- 太田 光彦
- 申请号：
- JP2009128792
- 公开号：
- JP5639346B2
- 申请日:
- 2009.05.28
- 申请国别(地区):
- JP
- 年份:
- 2014
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a ceramic bone head ball capable of being processed with an excellent yield by suppressing pitching during the process, and capable of suppressing decline of strength caused by the pitching during the process.
SOLUTION: The ceramic bone head ball 1 has a two-staged tapered hole. The tapered half angle &theta of the tapered surface 3 on the opening side of the tapered hole is not more than 22.5 ° but exceeds the tapered half angle &gamma of the tapered surface 2 on the apex side of the tapered hole.
COPYRIGHT: (C)2011,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
