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1. 发明授权

US5037423A Method and instrumentation for the replacement of a knee prosthesis 失效
标题翻译：用于更换膝盖假体的方法和仪器
公开(公告)号：US5037423A
公开(公告)日：1991-08-06
申请号：US520483
申请日：1990-05-07
申请人： Robert V. Kenna
发明人： Robert V. Kenna
IPC分类号： A61B17/15 , A61F2/38
CPC分类号： A61B17/155 , A61F2/38
摘要： A novel method for replacing a previously implanted knee joint prosthesis in a patient is disclosed in which the previously implanted femoral component is replaced with a revision femoral component having thicker distal and posterior bearing portions so as to restore the natural anatomic transverse joint plane and collateral ligamentous balance in extension and flexion of the prosthetic joint. Instrumentation for use in this method includes a novel revision cutting jig which is used in the preparation of the distal end of the femur for the implantation of the revision femoral component.
摘要翻译：公开了一种用于替换患者中先前植入的膝关节假体的新方法，其中先前植入的股骨部件被替换为具有较厚的远侧和后部轴承部分的修正股骨部件，以便恢复天然解剖横向关节平面和副韧带假肢关节的伸展和屈曲平衡。用于该方法的仪器包括一种新型的修剪切割夹具，其用于制备用于植入修正股骨组件的股骨远端。

2. 发明授权

US4828562A Anterior cruciate ligament prosthesis 失效
标题翻译：前交叉韧带假体
公开(公告)号：US4828562A
公开(公告)日：1989-05-09
申请号：US152129
申请日：1988-02-04
申请人： Robert V. Kenna
发明人： Robert V. Kenna
IPC分类号： A61F2/08
CPC分类号： A61F2/0811 , A61F2002/0829 , A61F2002/0864 , A61F2002/087 , A61F2002/0882 , Y10S606/907
摘要： An adjustable housing suitable to be used with another housing and with a synthetic ligament so as to provide (for example) an anterior cruciate ligament prosthesis system for a knee joint is provided. The adjustable housing features an interior having a step shoulder located therein. A set screw in the housing fixes the synthetic ligament at a desired level of tension. The system has many significant advantages including (but not limited to) being able to withstand very high loads and being able to be retensioned repeatedly and easily without replacing the artificial ligament.

3. 发明授权

US4755183A Ligament prosthesis 失效
标题翻译：韧带假体
公开(公告)号：US4755183A
公开(公告)日：1988-07-05
申请号：US12409
申请日：1987-02-09
申请人： Robert V. Kenna
发明人： Robert V. Kenna
IPC分类号： A61F2/08
CPC分类号： A61F2/0811 , A61F2002/0829 , A61F2002/0864 , A61F2002/087 , A61F2002/0882
摘要： A prosthesis for an anterior cruciate ligament features first and second elongate members, first and second separately tensionable cords, a catch means on the bore surface of each elongate member, and a means for securing the elongate members to the femur and tibia, respectively. The prosthesis has the significant advantage of being able to replace and to perform in substantially the same manner as a natural anterior cruciate ligament. The separate tensioning followed by fixing of the two cords in the implanted prosthesis results in a substantially smoother and more stable range of motion than has been possible with prior art prostheses.

4. 发明授权

US4621630A Guide for femoral neck osteotomy 失效
标题翻译：股骨颈截骨术指南
公开(公告)号：US4621630A
公开(公告)日：1986-11-11
申请号：US485541
申请日：1983-04-15
申请人： Robert V. Kenna
发明人： Robert V. Kenna
IPC分类号： A61B17/14 , A61B17/15 , A61B17/56 , A61F5/04
CPC分类号： A61B17/15
摘要： A guide for femoral neck osteotomy comprises a longitudinal rod having attaching structure at the lower end thereof for securing the rod to a femur at the greater trochanter. A transversely extending support arm is secured to the rod adjacent the lower end thereof, and a guide bar is connected to the support arm. The guide bar has at least one elongate planar surface disposed at an angle of 45.degree. to the axis of the rod. In use, the rod is aligned with the long shaft axis of the femur and attached to the femur at the greater trochanter. The rod is manipulated until the support arm and the long shaft axis of the tibia are disposed in the same plane. This procedure properly positions the elongate planar surface of the guide bar whereby an instrument in engagement with that surface traverses the femoral neck at an angle of 45.degree. to the long shaft axis of the femur.
摘要翻译：用于股骨颈截骨的引导件包括在其下端具有附接结构的纵向杆，用于将杆固定到大转子上的股骨。横向延伸的支撑臂在其下端固定到杆上，并且导杆连接到支撑臂。导杆具有至少一个细长平面，与杆的轴线成45度角。在使用中，杆与股骨的长轴轴线对准，并连接到大转子上的股骨。杆被操作直到支撑臂和胫骨的长轴轴线设置在同一平面内。该过程适当地定位导杆的细长平面，由此与该表面接合的器械以与股骨的长轴轴成45度的角度穿过股骨颈。

5. 外观设计

USD286181S Acetabular cup assembly prosthesis 失效
公开(公告)号：USD286181S
公开(公告)日：1986-10-14
申请号：US526729
申请日：1983-08-26
申请人： Robert V. Kenna
设计人： Robert V. Kenna

6. 外观设计

USD284889S Combined acetabulum sizer and drill guide 失效
公开(公告)号：USD284889S
公开(公告)日：1986-07-29
申请号：US543206
申请日：1983-10-19
申请人： Robert V. Kenna
设计人： Robert V. Kenna

7. 发明授权

US5441537A Bone prosthesis with porous coating 失效
公开(公告)号：US5441537A
公开(公告)日：1995-08-15
申请号：US988085
申请日：1992-12-04
申请人： Robert V. Kenna
发明人： Robert V. Kenna
IPC分类号： A61F2/00 , A61F2/30 , A61F2/38 , B22F7/00 , A61F2/02
CPC分类号： B22F7/002 , A61F2/30767 , A61F2/3859 , A61F2/3877 , A61F2/389 , A61F2002/30011 , A61F2002/30242 , A61F2002/30769 , A61F2002/30929 , A61F2230/0071 , A61F2250/0023 , A61F2310/00023 , A61F2310/00029 , A61F2310/00407 , A61F2310/00413 , Y10S623/923
摘要： An improved metallic bone prosthesis having a porous coating for bone ingrowth or interlocking with bone cement is disclosed. The porous coating comprises two layers of generally ball-shaped metallic particles bonded together at their points of contact, e.g. by sintering, and defining between them a plurality of connected interstitial pores having an average pore size of from about 350 microns to about 500 microns. A high resistance to failure at the coating-substrate and bone-coating (or cement-coating) interfaces is achieved with the use of the improved prosthesis. Also disclosed are a novel method for affixing the porous coating to a metal substrate, and a knee joint prosthesis having bearing portions designed so that the function of said prosthesis closely approximates that of the natural knee.

8. 发明授权

US5108437A Modular prosthesis 失效
标题翻译： MODULAR PROSTHESIS
公开(公告)号：US5108437A
公开(公告)日：1992-04-28
申请号：US244446
申请日：1988-09-14
申请人： Robert V. Kenna
发明人： Robert V. Kenna
IPC分类号： A61F2/62 , A61F2/00 , A61F2/30 , A61F2/36
CPC分类号： A61F2/3672 , A61F2/3662 , A61F2/30724 , A61F2/367 , A61F2/3676 , A61F2002/30014 , A61F2002/30329 , A61F2002/30383 , A61F2002/30426 , A61F2002/3049 , A61F2002/3055 , A61F2002/30599 , A61F2002/30604 , A61F2002/3631 , A61F2220/0025 , A61F2250/0018 , A61F2250/0063
摘要： A modular prosthesis features at least one male-female fitting, with the female portion being located on one end of one segment of that prosthesis and the mating male portion being located on one end of a second prosthesis segment, with at least the proximal part of the male-female fitting having a taper. The two parts of that fitting can be locked together by a locking mechanism in the form of a novel spacer which also has a taper which mates with the taper of the male-female fitting described above. Multiple modular segments can be assembled together so as to produce a prosthesis as required by the patient.

9. 发明授权

US4834756A Bone prosthesis with porous coating 失效
标题翻译：骨假体与多孔涂层
公开(公告)号：US4834756A
公开(公告)日：1989-05-30
申请号：US786978
申请日：1985-10-15
申请人： Robert V. Kenna
发明人： Robert V. Kenna
IPC分类号： A61F2/00 , A61F2/30 , A61F2/38 , B22F7/00
CPC分类号： A61F2/30767 , B22F7/002 , A61F2/3859 , A61F2/3877 , A61F2/389 , A61F2002/30011 , A61F2002/30242 , A61F2002/30769 , A61F2002/30929 , A61F2230/0071 , A61F2250/0023 , A61F2310/00023 , A61F2310/00029 , A61F2310/00407 , A61F2310/00413 , A61F2310/00952 , Y10S623/901
摘要： An improved metallic bone prosthesis having a porous coating for bone ingrowth or interlocking with bone cement is disclosed. The porous coating comprises two layers of generally ball-shaped metallic particles bonded together at their points of contact, e.g. by sintering, and defining between them a plurality of connected interstitial pores having an average pore size of from about 350 microns to about 500 microns. A high resistance to failure at the coating-substrate and bone-coating (or cement-coating) interfaces is achieved with the use of the improved prosthesis. Also disclosed are a novel method for affixing the porous coating to a metal substrate, and a knee joint prosthesis having bearing portions designed so that the function of said prosthesis closely approximates that of the natural knee.
摘要翻译：公开了一种改进的金属骨假体，其具有用于骨向内生长或与骨水泥互锁的多孔涂层。多孔涂层包括在其接触点处例如粘合在一起的两层通常为球形的金属颗粒。通过烧结，并且在它们之间限定平均孔径为约350微米至约500微米的多个连接的间隙孔。通过使用改进的假体实现了在涂层 - 基材和骨涂层（或水泥 - 涂层）界面处的高抗破坏性。还公开了一种用于将多孔涂层固定到金属基底的新方法，以及具有设计成使得所述假体的功能与天然膝盖的功能近似的轴承部分的膝关节假体。

10. 发明授权

US4825857A Prosthetic knee implantation 失效
标题翻译：假肢膝关节植入
公开(公告)号：US4825857A
公开(公告)日：1989-05-02
申请号：US837200
申请日：1986-03-10
申请人： Robert V. Kenna
发明人： Robert V. Kenna
IPC分类号： A61B17/15 , A61F5/04
CPC分类号： A61B17/154 , A61B17/155 , A61B17/157
摘要： A tool for use in preparing a distal femur for the implantation of a prosthetic knee includes a central section having at least one handle. A positioning pin extends outwardly from the central section. A distal femoral condyles cutting jig is selectively connected to the central section.
摘要翻译：用于制备用于植入假体膝盖的远端股骨的工具包括具有至少一个手柄的中心部分。定位销从中心部分向外延伸。远侧股骨髁切割夹具选择性地连接到中心部分。

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