-
1.发明申请Open Celled Metal Implants With Roughened Surfaces and Method for Roughening Open Celled Metal Implants 审中-公开具有粗化表面的开放式金属植入物和用于粗化开放式金属植入物的方法公开(公告)号：US20090326674A1
公开(公告)日：2009-12-31
申请号：US12487698
申请日：2009-06-19
CPC分类号： C23F1/26 , A61F2/30767 , A61F2/38 , A61F2002/30011 , A61F2002/3092 , A61F2002/30925 , A61F2250/0023 , A61F2310/00023 , A61L27/06 , A61L27/50 , A61L27/56 , A61L2400/18 , B22F3/24 , B22F2003/244 , B22F2003/248 , C22C1/08
摘要： The present invention concerns processes for etching a porous titanium foam or porous titanium alloy foam where a clean, dry foam product is immersed into an aqueous acid solution comprising about 0.5 to about 5 volume percent HF and about 5 to about 20 volume percent HNO3 for a time sufficient to achieve a desired surface roughness and heating the etched foam to remove residual titanates. The etching process increases the porosity at the surface of the foam but the etchant does not penetrate fully into the interior of the foam so that adequate mechanical properties are maintained. The etching process also increases the coefficient of friction at the foam surface. The foam may comprise an open-celled orthopaedic or dental implant, or may comprise a coating on the surface of a substrate.
摘要翻译： 本发明涉及用于蚀刻多孔钛泡沫或多孔钛合金泡沫的方法，其中将干净的干燥的泡沫产品浸入包括约0.5至约5体积％的HF和约5至约20体积％的HNO 3的酸性水溶液中，用于 时间足以实现所需的表面粗糙度并加热蚀刻的泡沫以除去残余的钛酸盐。 蚀刻过程增加了泡沫表面的孔隙率，但是蚀刻剂不能完全渗透到泡沫的内部，从而保持了足够的机械性能。 蚀刻工艺也增加了泡沫表面的摩擦系数。 泡沫可以包括开细胞矫形或牙科植入物，或者可以包括在基底表面上的涂层。
-
公开(公告)号：US20090266791A1
公开(公告)日：2009-10-29
申请号：US12110404
申请日：2008-04-28
IPC分类号： B44C1/22
CPC分类号： A61L27/30 , A61L27/04 , A61L27/50 , A61L2400/18 , C25F3/02
摘要： Methods and devices directed to surface treatment of implants are disclosed. In some instances, the surfaces are treated to have one or more characteristics that can impart low wear properties when the implant is utilized in a subject. As one example, a metallic surface of an implant can be treated to form pits in the surface, followed optionally by a smoothing step to reduce the roughness of the pitted surface. A plasma treatment can be used to form an oxide-containing layer (e.g., highly corrosion resistant and/or thick) on the surface. An acid treatment can also be used as part of a process for forming an oxide-containing layer. Other examples of method are also disclosed, along with characteristics of implant surfaces that can exhibit low wear properties.
摘要翻译： 公开了用于植入物的表面处理的方法和装置。 在一些情况下，表面被处理成具有一个或多个特性，当在受试者中使用植入物时可以赋予低的磨损特性。 作为一个示例，可以处理植入物的金属表面以在表面中形成凹坑，随后可选地通过平滑步骤来减小凹坑表面的粗糙度。 可以使用等离子体处理来在表面上形成含氧化物层（例如高度耐腐蚀和/或厚的）。 酸处理也可以用作形成含氧化物层的方法的一部分。 还公开了其他的方法实例以及可以表现出低磨损特性的植入物表面的特征。
-
3.发明授权公开(公告)号：US08153015B2
公开(公告)日：2012-04-10
申请号：US12193092
申请日：2008-08-18
IPC分类号： C25F3/02
CPC分类号： C23C30/00 , A61L27/047 , A61L27/306 , A61L27/50 , C22C27/06 , C23C22/58 , Y10T428/26
摘要： The invention concerns article having a surface oxide layer up to 20 nm thick, the surface oxide layer comprising chromium and cobalt oxides where the atomic ratio of Cr/Co is more than 3. The invention also concerns methods for treating a chromium containing material, said method comprising contacting said material with a gas plasma under conditions effective to oxidize at least a portion of the material; and contacting said material with an acid. The treated surface is corrosion resistant and can be used in orthopedic implants, especially the wear surface of the orthopedic implant to reduce wear, and other corrosive environment.
摘要翻译： 本发明涉及具有高达20nm厚的表面氧化物层的物品，其中Cr / Co的原子比大于3的铬和钴氧化物的表面氧化物层。本发明还涉及用于处理含铬材料的方法，所述 方法，包括在有效氧化材料的至少一部分的条件下使所述材料与气体等离子体接触; 并使所述材料与酸接触。 经处理的表面是耐腐蚀的，可用于矫形植入物，特别是矫形植入物的磨损表面，以减少磨损和其他腐蚀性环境。
-
4.发明申请公开(公告)号：US20120239157A1
公开(公告)日：2012-09-20
申请号：US13411931
申请日：2012-03-05
CPC分类号： C23C30/00 , A61L27/047 , A61L27/306 , A61L27/50 , C22C27/06 , C23C22/58 , Y10T428/26
摘要： The invention concerns article having a surface oxide layer up to 20 nm thick, the surface oxide layer comprising chromium and cobalt oxides where the atomic ratio of Cr/Co is more than 3. The invention also concerns methods for treating a chromium containing material, said method comprising contacting said material with a gas plasma under conditions effective to oxidize at least a portion of the material; and contacting said material with an acid. The treated surface is corrosion resistant and can be used in orthopedic implants, especially the wear surface of the orthopedic implant to reduce wear, and other corrosive environment.
摘要翻译： 本发明涉及具有高达20nm厚的表面氧化物层的物品，其中Cr / Co的原子比大于3的铬和钴氧化物的表面氧化物层。本发明还涉及用于处理含铬材料的方法，所述 方法，包括在有效氧化材料的至少一部分的条件下使所述材料与气体等离子体接触; 并使所述材料与酸接触。 经处理的表面是耐腐蚀的，可用于矫形植入物，特别是矫形植入物的磨损表面，以减少磨损和其他腐蚀性环境。
-
5.发明申请公开(公告)号：US20090175918A1
公开(公告)日：2009-07-09
申请号：US12193092
申请日：2008-08-18
CPC分类号： C23C30/00 , A61L27/047 , A61L27/306 , A61L27/50 , C22C27/06 , C23C22/58 , Y10T428/26
摘要： The invention concerns article having a surface oxide layer up to 20 nm thick, the surface oxide layer comprising chromium and cobalt oxides where the atomic ratio of Cr/Co is more than 3. The invention also concerns methods for treating a chromium containing material, said method comprising contacting said material with a gas plasma under conditions effective to oxidize at least a portion of the material; and contacting said material with an acid. The treated surface is corrosion resistant and can be used in orthopedic implants, especially the wear surface of the orthopedic implant to reduce wear, and other corrosive environment.
摘要翻译： 本发明涉及具有高达20nm厚的表面氧化物层的物品，其中Cr / Co的原子比大于3的铬和钴氧化物的表面氧化物层。本发明还涉及用于处理含铬材料的方法，所述 方法，包括在有效氧化材料的至少一部分的条件下使所述材料与气体等离子体接触; 并使所述材料与酸接触。 经处理的表面是耐腐蚀的，可用于矫形植入物，特别是矫形植入物的磨损表面，以减少磨损和其他腐蚀性环境。
-
-
-
-
搜索结果
5 条记录 (耗时 0.015 秒)
