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1. 再颁专利

USRE37277E1 Tibial prosthetic implant with offset stem 失效
标题翻译：胫骨假体植入物与偏心茎
公开(公告)号：USRE37277E1
公开(公告)日：2001-07-10
申请号：US08529671
申请日：1995-09-18
申请人： James L. Baldwin , Steven I. Whitlock
发明人： James L. Baldwin , Steven I. Whitlock
IPC分类号： A61F238
CPC分类号： A61F2/389
摘要： A tibial prosthetic implant includes a base or base plate with an offset tibial stem. The base includes an inferior surface adapted to abut a resected surface of a patient's tibia and forms a base for articulating surfaces adapted to articulate with the patient's femoral condyles. The longitudinal center axis of the tibial stem extends from the inferior surface of the base and is offset from a center of the base. The offset places the stem in position to extend into the central canal of the tibia so that it does not substantially interfere with the cortical bone when the inferior surface of the base substantially abuts and aligns with the resected surface of the tibia.
摘要翻译：胫骨假体植入物包括具有偏移胫骨柄的基部或底板。基部包括适于邻接患者胫骨的切除表面的下表面，并且形成适于与患者的股骨髁铰接的关节表面的基部。胫骨杆的纵向中心轴线从底座的下表面延伸并偏离基座的中心。偏移将杆放置在位置以延伸到胫骨的中心管中，使得当基部的下表面基本上邻接并与胫骨的切除表面对准时，其基本上不干扰皮质骨。

2. 发明授权

US5716360A Patella recession instrument and method for anatomically-shaped patellar prostheses 失效
标题翻译：髌骨切除仪器及解剖形状髌骨假体的方法
公开(公告)号：US5716360A
公开(公告)日：1998-02-10
申请号：US497537
申请日：1995-06-30
申请人： James L. Baldwin , James M. Freid , Steven I. Whitlock , Mark L. Rehmann
发明人： James L. Baldwin , James M. Freid , Steven I. Whitlock , Mark L. Rehmann
IPC分类号： A61B17/16 , A61B17/17 , A61B19/00 , A61B17/56
CPC分类号： A61B17/1677 , A61B17/1767 , A61B2017/1602 , A61B2090/033
摘要： A patella recession instrument (10) and method provides a guide for producing an oval, tri-oval, or elliptically shaped recess on the posterior surface of the osteotomized patella for receiving a similarly shaped backing portion of a patellar implant. The apparatus includes a guide bushing (12) and a bushing positioning mechanism (14) for securing the bushing against the posterior of the osteotomized patella, with a guide opening (54) formed through the bushing covering the total area to be recessed. A reamer guide structure, which may be a separate structure (16) received in the bushing guide opening (54) or integrally formed with the bushing (12), receives one or more rotary reamer tools (18) in a plurality of reaming positions. The cutting face (80) of the rotary reamer tool (18) in each different reaming position covers a different portion of the total area to be recessed. The recession method includes securing the guide bushing (12) in the proper operating position against the patella, sequentially positioning the cutting face (80) of the reamer tool (18) or tools in the plurality of different reaming positions, and operating the tool or tools to produce a series of intermediate recesses that combine to approximate the total area to be recessed.
摘要翻译：髌骨衰退仪器（10）和方法提供了用于在截骨的髌骨的后表面上产生椭圆形，三椭圆形或椭圆形凹陷的引导件，用于接收髌骨植入物的类似形状的背衬部分。所述装置包括用于将所述套管固定在所述截骨的髌骨的后部的引导衬套（12）和衬套定位机构（14），所述引导开口（54）穿过所述衬套形成，所述导向开口穿过所述衬套覆盖要被凹进的总体区域。可以是容纳在衬套引导开口（54）中或与衬套（12）一体形成）的单独结构（16）的扩孔器引导结构在多个铰接位置中接收一个或多个旋转扩孔器工具（18）。每个不同的铰接位置的旋转扩孔器工具（18）的切割面（80）覆盖要凹进的总面积的不同部分。经济衰退的方法包括将引导衬套（12）固定在抵靠髌骨的适当操作位置，顺序地将扩孔器工具（18）的切割面（80）或工具放置在多个不同的铰孔位置中，并操作工具或用于生产一系列中间凹槽的工具，其组合以接近要凹进的总面积。

3. 发明授权

US5271737A Tibial prosthetic implant with offset stem 失效
标题翻译：胫骨假体植入物与偏心茎
公开(公告)号：US5271737A
公开(公告)日：1993-12-21
申请号：US940441
申请日：1992-09-04
申请人： James L. Baldwin , Steven I. Whitlock
发明人： James L. Baldwin , Steven I. Whitlock
IPC分类号： A61F2/38
CPC分类号： A61F2/389
摘要： A tibial prosthetic implant includes a base or base plate with an offset tibial stem. The base includes an inferior surface adapted to abut a resected surface of a patient's tibia and forms a base for articulating surfaces adapted to articulate with the patient's femoral condyles. The longitudinal center axis of the tibial stem extends from the inferior surface of the base and is offset from a center of the base. The offset places the stem in position to extend into the central canal of the tibia so that it does not substantially interfere with the cortical bone when the inferior surface of the base substantially abuts and aligns with the resected surface of the tibia.
摘要翻译：胫骨假体植入物包括具有偏移胫骨柄的基部或底板。基部包括适于邻接患者胫骨的切除表面的下表面，并且形成适于与患者的股骨髁铰接的关节表面的基部。胫骨杆的纵向中心轴线从底座的下表面延伸并偏离基座的中心。偏移将杆放置在位置以延伸到胫骨的中心管中，使得当基部的下表面基本上邻接并与胫骨的切除表面对准时，其基本上不干扰皮质骨。

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