专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080195214A1 Co-Cr-Mo Alloy for Artificial Joint Having Excellent Wear Resistance 审中-公开
标题翻译：用于具有优异耐磨性的人造接头的Co-Cr-Mo合金
公开(公告)号：US20080195214A1
公开(公告)日：2008-08-14
申请号：US11909979
申请日：2005-03-28
申请人： Akihiko Chiba , Kazushige Kumagai , Naoyuki Nomura
发明人： Akihiko Chiba , Kazushige Kumagai , Naoyuki Nomura
IPC分类号： A61F2/30 , C22C19/07 , B22F3/11 , C22C1/04
CPC分类号： C22C19/07 , A61L27/045
摘要： In the field of biocompatible Co—Cr—Mo alloys for use in artificial joints or the like, the formation of wear debris in a living body is a matter of concern. The purpose of the invention is to provide a technique for improving the wear resistance of a Co—Cr—Mo alloy for use in an artificial joint to thereby prevent the formation of wear debris in a living body. The improvement in wear resistance of a Co—Cr—Mo alloy for use in an artificial joint can be achieved by finely dividing the crystal particles of the alloy, by preparing an alloy composition having a higher Mo content than any known standard Co—Cr—Mo alloy (e.g., Co-29Cr-6Mo alloy), by increasing the proportion of the σ phase that is dispersedly precipitated, by sintering an alloy powder produced by gas atomization technique to form pores on the surface of the alloy material, or the like. The Co—Cr—Mo alloy having high wear resistance is applicable to medical devices including artificial hip joints, artificial knee joints and the like which have less biotoxicity, namely which are safer and have a longer useful life.
摘要翻译：在用于人造关节等的生物相容性Co-Cr-Mo合金领域中，生物体中磨损碎屑的形成是令人担忧的问题。本发明的目的是提供一种用于改善用于人造接头的Co-Cr-Mo合金的耐磨性从而防止在生物体中形成磨损碎屑的技术。用于人造接头的Co-Cr-Mo合金的耐磨性的改善可以通过将合金的结晶颗粒细分，通过制备具有比任何已知的标准Co-Cr- Mo合金（例如Co-29Cr-6 Mo合金），通过烧结由气体雾化技术产生的合金粉末，在合金材料的表面上形成孔隙，通过增加分散析出的σ相的比例，或类似。具有高耐磨性的Co-Cr-Mo合金可应用于生物毒性小的人造髋关节，人造膝关节等医疗装置，即更安全，使用寿命更长的医疗装置。

2. 发明授权

US09163669B2 Sliding member and bearing 有权
标题翻译：滑动构件和轴承
公开(公告)号：US09163669B2
公开(公告)日：2015-10-20
申请号：US14122658
申请日：2011-12-22
申请人： Ryoichi Kurata , Kenzo Tadokoro , Kazushige Kumagai
发明人： Ryoichi Kurata , Kenzo Tadokoro , Kazushige Kumagai
IPC分类号： B22F7/04 , F16C33/06 , F16C33/14 , B22F7/02 , F16C17/02 , F16C33/20 , F16C31/02
CPC分类号： F16C33/145 , B22F7/02 , B22F7/04 , F16C17/02 , F16C31/02 , F16C33/20 , F16C33/201 , F16C33/206 , F16C33/208 , F16C2202/52 , F16C2202/54 , F16C2204/12 , F16C2208/02 , F16C2208/32 , F16C2220/20 , F16C2240/48 , F16C2240/60
摘要： To provide a sliding member that improves seizure resistance by restraining any exposure of the porous layer and improves abrasion resistance and load resistance.The sliding member 1 constitutes a bearing having a cylindrical shape, an inner circumferential surface of which is a sliding layer 5 with an axis. In the sliding member 1, a porous layer 3 made of alloy material is formed on a surface of a metal base 2 and this porous layer 3 is covered by resin material 4 so that the sliding layer 5 is formed. In the sliding member 1, a particle size of metal powder 30 forming the porous layer 3 is within a range of 15 through 60 μm, preferably, about 25 through 45 μm. Further, in the sliding member 1, a thickness of the porous layer 3 is within a range of 0.06 through 0.1 mm and a thickness of the sliding layer 5 is within a range of 0.08 through 0.16 mm The thickness of the sliding layer 5 is set to be thicker on average than the thickness of the porous layer 3 so that the porous layer 3 is not exposed.
摘要翻译：提供通过抑制多孔层的任何暴露来改善耐咬合性并提高耐磨性和耐负荷性的滑动构件。滑动构件1构成具有圆筒形状的轴承，其内周表面是具有轴的滑动层5。在滑动构件1中，在金属基体2的表面上形成由合金材料制成的多孔层3，并且该多孔层3被树脂材料4覆盖，从而形成滑动层5。在滑动构件1中，形成多孔层3的金属粉末30的粒径在15〜60μm的范围内，优选为25〜45μm左右。此外，在滑动构件1中，多孔层3的厚度在0.06〜0.1mm的范围内，滑动层5的厚度在0.08〜0.16mm的范围内。设定滑动层5的厚度平均地比多孔层3的厚度更厚，使得多孔层3不暴露。

3. 发明申请

US20140099048A1 SLIDING MEMBER AND BEARING 有权
标题翻译：滑动构件和轴承
公开(公告)号：US20140099048A1
公开(公告)日：2014-04-10
申请号：US14122658
申请日：2011-12-22
申请人： Ryoichi Kurata , Kenzo Tadokoro , Kazushige Kumagai
发明人： Ryoichi Kurata , Kenzo Tadokoro , Kazushige Kumagai
IPC分类号： F16C33/14
CPC分类号： F16C33/145 , B22F7/02 , B22F7/04 , F16C17/02 , F16C31/02 , F16C33/20 , F16C33/201 , F16C33/206 , F16C33/208 , F16C2202/52 , F16C2202/54 , F16C2204/12 , F16C2208/02 , F16C2208/32 , F16C2220/20 , F16C2240/48 , F16C2240/60
摘要： To provide a sliding member that improves seizure resistance by restraining any exposure of the porous layer and improves abrasion resistance and load resistance.The sliding member 1 constitutes a bearing having a cylindrical shape, an inner circumferential surface of which is a sliding layer 5 with an axis. In the sliding member 1, a porous layer 3 made of alloy material is formed on a surface of a metal base 2 and this porous layer 3 is covered by resin material 4 so that the sliding layer 5 is formed. In the sliding member 1, a particle size of metal powder 30 forming the porous layer 3 is within a range of 15 through 60 μm, preferably, about 25 through 45 μm. Further, in the sliding member 1, a thickness of the porous layer 3 is within a range of 0.06 through 0.1 mm and a thickness of the sliding layer 5 is within a range of 0.08 through 0.16 mm The thickness of the sliding layer 5 is set to be thicker on average than the thickness of the porous layer 3 so that the porous layer 3 is not exposed.
摘要翻译：提供通过抑制多孔层的任何暴露来改善耐咬合性并提高耐磨性和耐负荷性的滑动构件。滑动构件1构成具有圆筒形状的轴承，其内周表面是具有轴的滑动层5。在滑动构件1中，在金属基体2的表面上形成由合金材料制成的多孔层3，并且该多孔层3被树脂材料4覆盖，从而形成滑动层5。在滑动构件1中，形成多孔层3的金属粉末30的粒径在15〜60μm的范围内，优选为25〜45μm左右。此外，在滑动构件1中，多孔层3的厚度在0.06〜0.1mm的范围内，滑动层5的厚度在0.08〜0.16mm的范围内。设定滑动层5的厚度平均地比多孔层3的厚度更厚，使得多孔层3不暴露。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式