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1. 发明授权

US4731086A Shim for femoral knee joint prosthesis and method of using 失效
标题翻译：股骨膝关节假体的垫片及其使用方法
公开(公告)号：US4731086A
公开(公告)日：1988-03-15
申请号：US40530
申请日：1987-04-20
申请人： Leo A. Whiteside , Walter P. Spires, Jr.
发明人： Leo A. Whiteside , Walter P. Spires, Jr.
IPC分类号： A61F2/30 , A61F2/38
CPC分类号： A61F2/38 , A61F2002/30736
摘要： A prosthetic shim and a method for use of prosthetic shims to provide level support and increase the effective thickness of a femoral knee joint component having at least one fixation peg extending from the face which is to seat against the distal end of a femur. The shim is for placement between the femoral component and the femur and comprises a platform having a first surface to cooperatively engage the joint component face and a second surface to engage the distal end of the femur. The shim preferably has a means for securing the shim in place, such as spikes extending from the second surface to be driven into the femur. The platform preferably is shaped and dimensioned to be effective if placed centrally relative to the joint component face, covers a majority of the joint component face, and has an opening corresponding to each peg of the joint component so that the shim can be placed over each peg.

2. 发明授权

US4714474A Tibial knee joint prosthesis with removable articulating surface insert 失效
标题翻译：胫骨膝关节假体具有可拆卸的关节表面插入物
公开(公告)号：US4714474A
公开(公告)日：1987-12-22
申请号：US861892
申请日：1986-05-12
申请人： John G. Brooks, Jr. , Walter P. Spires, Jr.
发明人： John G. Brooks, Jr. , Walter P. Spires, Jr.
IPC分类号： A61F2/38
CPC分类号： A61F2/3886
摘要： This invention provides an improved implantable tibial component comprising an implantable tibial base containing two separate, opposed raised walls which engage oppositely configured recesses in the lower surface of a removable hard polymeric condylar articulating surface insert. The locking mechanism which holds the insert within the base provides a means by which the insert can be locked within the base in a secure fashion. The locking mechanism further provides a means by which the insert can be removed from the implanted tibial base in a simple fashion by raising the anterior end of the insert over the top of the anterior wall on the edge of the tibial base and sliding the insert anteriorly out of the posterior raised walls which also extend along the medial and lateral edges of the tibial base.
摘要翻译：本发明提供了一种改进的可植入胫骨部件，其包括可植入的胫骨基部，其包含两个分离的相对的隆起壁，其接合可移除的硬质聚合物髁关节表面插入物的下表面中的相对配置的凹部。将插入件保持在基座内的锁定机构提供了一种装置，通过该装置可以以安全的方式将插入件锁定在基座内。锁定机构进一步提供了一种装置，通过该装置可以简单地将插入件从植入的胫骨基座移除，通过将插入物的前端抬高到胫骨基部的边缘上的前壁的顶部上并将插入件向前滑动从沿着胫骨基部的内侧和外侧边缘延伸的后凸起的壁中。

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