| 发明名称 | Medical ceramic material and manufacturing method thereof | ||
| 摘要 | The present invention provides a medical ceramic material with a color other than black or white, especially blue, with which it is possible to secure sufficient durability and to maintain a good appearance by sufficiently suppressing a color difference between before and after the irradiation of gamma-rays for sterilization. The medical ceramic material is formed using a composite material containing alumina and zirconia. The composite material contains cobalt oxide. The content of cobalt oxide is set to be 0.2 wt % to 1.0 wt % with respect to 100 wt % of the composite material excluding cobalt oxide. | ||
| 申请公布号 | US9358321(B2) | 申请公布日期 | 2016.06.07 |
| 申请号 | US201314385658 | 申请日期 | 2013.02.28 |
| 申请人 | KYOCERA Medical Corporation | 发明人 | Nakanishi Takefumi;Nagata Hironori |
| 分类号 | C04B35/119;A61L27/10;A61L27/50;A61L27/42;C04B35/10;C04B35/64;A61L27/04 | 主分类号 | C04B35/119 |
| 代理机构 | Volpe and Koenig, P.C. | 代理人 | Volpe and Koenig, P.C. |
| 主权项 | 1. A medical ceramic material formed using a composite material containing alumina and zirconia, wherein the composite material contains cobalt oxide, and the cobalt oxide is greater than 0.2 wt % to 1.0 wt % with respect to 100 wt % of the composite material excluding the cobalt oxide, the composite material further contains titanium dioxide and at least one of strontium oxide, silicon dioxide, and magnesium oxide; the composite materials are composed of particles with an average particle diameter of the particles of 1.0 micron or less; and a color difference (ΔE) measured in the medical ceramic is less than 3.5 after the medical ceramic undergoes gamma irradiation sterilization. | ||
| 地址 | Osaka JP | ||