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42. 发明授权

US06527808B1 Constrained socket for use with a ball-and-socket joint 失效
标题翻译：用于球窝接头的约束式插座
公开(公告)号：US06527808B1
公开(公告)日：2003-03-04
申请号：US09686550
申请日：2000-10-11
申请人： Ricardo Albertorio , Robert D. Krebs
发明人： Ricardo Albertorio , Robert D. Krebs
IPC分类号： A61F234
CPC分类号： A61F2/34 , A61F2/32 , A61F2002/305 , A61F2002/30571 , A61F2002/30795 , A61F2002/30822 , A61F2002/3241 , A61F2002/3443 , A61F2002/347 , A61F2002/3493 , A61F2220/0025
摘要： An improved constrained socket for use with an orthopedic implant for replacing a ball-and-socket joint. The constrained socket includes cuts extending from the opening of the socket generally toward the articular region thereof. Petals are formed between adjacent cuts in the socket. The socket further includes an annular expansion cutout, with the aforementioned cuts terminating therein. The socket does not include cuts on the primary articular surface, but nevertheless has a relatively low assembly force to allow assembly of the ball-and-socket joint during a surgical procedure. The relatively low assembly force of the constrained socket of the current disclosure is due in part to the annular expansion cutout which allows sufficient outward flexure of the petals to allow insertion of the ball of the ball-and-socket joint. The ball-and-socket joint of the current invention further includes a locking ring with an interior annular beveled surface to facilitate operable positioning of same and with an exterior visual indicator to facilitate identification of the beveled end of the locking ring. The exterior visual indicator comprises an exterior annular protrusion against which axial force may be supplied for positioning the locking ring about the acetabular cup. In one exemplary embodiment, an acetabular liner incorporates the features of the current invention.
摘要翻译：改进的受限插座，用于与矫形植入物一起用于替换球窝接头。受约束的插座包括从插座的开口大致向其关节区域延伸的切口。在插座中的相邻切口之间形成花瓣。插座还包括环形扩张切口，上述切口终止于其中。插座不包括主关节面上的切口，但是在外科手术过程中仍然具有相对低的组装力以允许球窝接头的组装。本公开的受约束的插座的相对低的组装力部分地由于环形扩张切口允许瓣的足够的向外弯曲以允许球窝接头的球插入。本发明的球窝接头还包括具有内部环形倾斜表面的锁定环，以便于其可操作地定位并具有外部视觉指示器以便于识别锁定环的倾斜端部。外部视觉指示器包括外部环形突起，可以向其提供轴向力以将锁定环定位在髋臼杯周围。在一个示例性实施例中，髋臼衬垫包含本发明的特征。

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