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1. 发明授权

US5445642A Method for installing a femoral component 失效
公开(公告)号：US5445642A
公开(公告)日：1995-08-29
申请号：US937704
申请日：1992-09-01
申请人： Donald E. McNulty , David C. Kelman , John R. Moreland , John E. Hamm
发明人： Donald E. McNulty , David C. Kelman , John R. Moreland , John E. Hamm
IPC分类号： A61B17/15 , A61F2/30 , A61F2/38 , A61B17/56
CPC分类号： A61B17/155 , A61F2/3859 , A61F2002/30616
摘要： The invention relates to a method for reconstructing a femoral portion of a knee in a total knee replacement, the distal end of which has medial and lateral condyles and an intercondylar notch therebetween defining a distal patellar groove for the articulation of the patella with the femur during flexion of the knee. The method comprising the steps of:locating and drilling a hole in the intercondylar notch to access an intermedullary canal of a femur;installing a femoral alignment guide onto an intermedullary rod;inserting the intermedullary rod through said hole toward a proximal end of the femur;moving said femoral alignment guide into contact with the intercondylar notch of the knee;positioning a femoral cutting block relative to the alignment guide;securing the cutting block to the femur to align a guide surface of the cutting block at a predetermined proximal distance from said intercondylar notch;removing the femoral alignment guide and rod from the femur;resecting the distal lateral and medial condyles along a plane using the guide surface of the resection block as a resection reference, wherein the plane is displaced from what will become a new prosthetic joint line generally coincidental with the end of the distal end of the original lateral condyle, and wherein the distance from the resected surface of the distal end of the original lateral condyle is less than the distance from the resected surface of the distal end of the original medial condyle; anddetermining an appropriate size of a femoral component having a size and condyle thickness which will reconstruct the lateral condyle and position the distal patellar groove at about the same distal locations to approximate the anatomy of the natural knee being replaced and to position the medial condyle of the femoral component at the same distal position as the original lateral condyle. The structures of the femoral alignment guide and cutting block are also disclosed.

2. 发明授权

US5688279A Alignment guide for a bone cutting block 失效
标题翻译：骨切割块对准指南
公开(公告)号：US5688279A
公开(公告)日：1997-11-18
申请号：US584896
申请日：1996-01-11
申请人： Donald E. McNulty , David C. Kelman , John R. Moreland , John E. Hamm
发明人： Donald E. McNulty , David C. Kelman , John R. Moreland , John E. Hamm
IPC分类号： A61B17/15 , A61F2/30 , A61F2/38 , A61B17/56
CPC分类号： A61B17/155 , A61F2/3859 , A61F2002/30616
摘要： An alignment guide for positioning a saw guide at a predetermined position on the distal femur is placed on the femur and receives an intramedullary rod inserted in the femur. The guide has an arm for coupling the saw guide block. The guide includes an intercondylar saddle that engages the intercondylar notch of the femur to align the saw guide at a predetermined position proximal to the intercondylar notch.
摘要翻译：用于将锯条引导件定位在股骨远端上的预定位置处的对准引导件被放置在股骨上并且接收插入股骨中的髓内杆。引导件具有用于联接锯导向块的臂。引导件包括髁间鞍座，其接合股骨的髁间切口，以将锯导引件对准接近髁间隙的预定位置。

3. 发明授权

US5562675A Apparatus for sizing a femoral component 失效
标题翻译：用于调整股骨部件的尺寸的装置
公开(公告)号：US5562675A
公开(公告)日：1996-10-08
申请号：US437848
申请日：1995-05-09
申请人： Donald E. McNulty , David C. Kelman , John R. Moreland , John E. Hamm
发明人： Donald E. McNulty , David C. Kelman , John R. Moreland , John E. Hamm
IPC分类号： A61B17/15 , A61F2/30 , A61F2/38 , A61B17/56
CPC分类号： A61B17/155 , A61F2/3859 , A61F2002/30616
摘要： A sizing assembly for determining the optimum size of a femoral component of a knee prosthesis is placed against the resected distal end of a femur. The assembly includes a body with a flat surface for contacting the resected surface of the femur and feet for engaging the femoral condyles. The assembly further includes a pivoted stylus that slides in the body and engages the anterior femoral cortex. Once the size of the femoral component is determined, a drill bushing corresponding to the femoral component is supported on the body. The drill bushing includes two apertures for guiding a drill to bore pilot holes in the resected femur.
摘要翻译：用于确定膝关节假体的股骨部件的最佳尺寸的定型组件被放置在股骨的切除的远端上。组件包括具有平坦表面的主体，用于接触股骨和脚的切除表面以接合股骨髁。组件还包括在身体中滑动并接合前股骨皮质的枢转触针。一旦确定了股骨部件的尺寸，对应于股骨部件的钻套支撑在主体上。钻套管包括两个孔，用于将钻头引导至切除的股骨中的导向孔。

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