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1. 发明申请

US20050043815A1 Oriented, cross-linked UHMWPE molding for orthopaedic applications 审中-公开
标题翻译：定向交联UHMWPE成型用于矫形应用
公开(公告)号：US20050043815A1
公开(公告)日：2005-02-24
申请号：US10953743
申请日：2004-09-29
申请人： Richard King , Donald McNulty , Todd Smith , Robert Richard
发明人： Richard King , Donald McNulty , Todd Smith , Robert Richard
IPC分类号： A61F2/00 , A61F2/30 , A61F2/34 , A61F2/38 , A61F2/40 , A61F2/46 , A61L27/16 , B29C35/08 , B29C43/16 , A61F2/28
CPC分类号： B29C43/003 , A61F2/3094 , A61F2/34 , A61F2/389 , A61F2/4081 , A61F2002/30133 , A61F2002/30367 , A61F2002/30403 , A61F2002/30822 , A61F2002/30827 , A61F2002/30878 , A61F2002/30892 , A61F2002/30957 , A61F2002/3412 , A61F2002/4631 , A61F2220/0025 , A61F2220/0033 , A61F2230/0015 , A61F2310/00011 , A61L27/16 , B29C35/08 , B29C2035/085 , B29K2023/0683 , B29K2105/253 , B29K2995/005 , B29K2995/0087 , B29L2031/7532 , C08L23/06
摘要： A process for forming an oriented orthopaedic implant prosthesis bearing, net-shape bearing, or near net-shape bearing includes the step of placing an irradiated UHMWPE preform or puck of a volume sufficient to accommodate the bearing in a compression mold and compression molding the irradiated preform. The molding is accomplished by applying heat and pressure to form the preform into a desired shape. The compression molding induces biaxial orientation in the formed bearing.
摘要翻译：用于形成定向整形外科植入物假体轴承，网状轴承或近网状轴承的方法包括以下步骤：将经辐射的UHMWPE预制件或圆盘放置在足以容纳轴承的压缩模具中并将其压缩成型预制件。通过施加热和压力以将预成型件形成为期望的形状来实现模制。压缩成型在形成的轴承中引起双轴取向。

2. 发明申请

US20070118227A1 COMPOSITE PROSTHETIC BEARING CONSTRUCTED OF POLYETHYLENE AND AN ETHYLENE-ACRYLATE COPOLYMER 审中-公开
标题翻译：聚乙烯和乙烯 - 丙烯酸酯共聚物构成的复合预聚物
公开(公告)号：US20070118227A1
公开(公告)日：2007-05-24
申请号：US11626040
申请日：2007-01-23
申请人： Richard King , Donald McNulty , Todd Smith
发明人： Richard King , Donald McNulty , Todd Smith
IPC分类号： A61F2/34 , A61F2/38 , A61F2/40
CPC分类号： A61L27/16 , A61L27/48 , C08L23/06 , C08L23/0869 , C08L2312/06 , C08L33/12
摘要： An implantable prosthetic bearing is constructed of a composite material having a first layer and second layer. The first layer has an articulating surface defined therein, whereas the second layer has a engaging surface defined therein for engaging either another prosthetic component or the bone itself. The first layer of the implantable prosthetic bearing is constructed of a polymer such as polyethylene or UHMWPE, whereas the second layer is constructed of a copolymer of ethylene and an acrylate. The ethylene portion of the copolymer provides for adhesion to the polymer of the first layer, whereas the acrylate portion of the copolymer provides for adhesion to commonly utilized bone cements. A method of making a prosthetic bearing is also disclosed.
摘要翻译：可植入假体轴承由具有第一层和第二层的复合材料构成。第一层具有限定在其中的铰接表面，而第二层具有限定在其中的接合表面，用于接合另一个假体部件或骨骼本身。可植入假体轴承的第一层由诸如聚乙烯或UHMWPE的聚合物构成，而第二层由乙烯和丙烯酸酯的共聚物构成。共聚物的乙烯部分提供与第一层的聚合物的粘合性，而共聚物的丙烯酸酯部分提供对常用骨粘固剂的粘合。还公开了制造假体轴承的方法。

3. 发明授权

US5147405A Knee prosthesis 失效
标题翻译：膝关节假体
公开(公告)号：US5147405A
公开(公告)日：1992-09-15
申请号：US728016
申请日：1991-07-08
申请人： Richard Van Zile , Donald McNulty , James Caywood
发明人： Richard Van Zile , Donald McNulty , James Caywood
IPC分类号： A61F2/38
CPC分类号： A61F2/3886
摘要： A knee prosthesis is provided including a tibial component having first and second generally concave bearing surfaces and a stabilizing post extending upwardly between the first and second bearing surfaces. The knee prosthesis also includes a femoral component having first and second spaced apart, convexly curved condyle bearing surfaces and a cam surface extending between the first and second bearing surfaces. The femoral component is articulatable with the tibial component between an extended position and a flexed position. The first and second femoral bearing surfaces engage the first and second tibial bearing surfaces, respectively, at first and second contact points. Between the extended position and about a 25.degree. flexion angle, the cam surface is spaced apart from a posterior side wall of the stabilizing post to permit movement of the femoral and tibial component as natural physiology dictates. As the knee prosthesis is flexed at about a 25.degree. flexion angle, the cam surface first engages the posterior side wall of the stabilizing post to control movement of the femoral component relative to the tibial component. Therefore, the stabilizing post engages the cam surface to control the position of the femoral component relative to the tibial component only upon flexion of the femoral and tibial component between about 25.degree. flexion and the flexed position.
摘要翻译：提供了一种膝关节假体，包括具有第一和第二大致凹入的支承表面的胫骨部件和在第一和第二支承表面之间向上延伸的稳定柱。膝关节假体还包括股骨部件，该股骨部件具有第一和第二间隔开的凸起弯曲的髁轴承表面和在第一和第二支承表面之间延伸的凸轮表面。股骨部件可与胫骨部件在延伸位置和弯曲位置之间铰接。第一和第二股骨承载表面分别在第一和第二接触点处接合第一和第二胫骨支承表面。在延伸位置和约25度弯曲角度之间，凸轮表面与稳定柱的后侧壁间隔开，以允许股骨和胫骨部件沿着自然生理学规定运动。当膝关节假体以约25度弯曲角度弯曲时，凸轮表面首先接合稳定柱的后侧壁，以控制股骨部件相对于胫骨部件的移动。因此，只有在股骨和胫骨部件在约25°屈曲和屈曲位置之间弯曲时，稳定柱接合凸轮表面才能控制股骨部件相对于胫骨部件的位置。

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