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    Computer-implemented method of preoperatively determining the optimized external shape of a prosthetic femoral hip stem
    3.
    发明授权
    Computer-implemented method of preoperatively determining the optimized external shape of a prosthetic femoral hip stem 有权
    计算机实现的方法，用于术前确定股骨假体股骨柄的优化外形

    公开(公告)号：US08768674B2

    公开(公告)日：2014-07-01

    申请号：US13839658

    申请日：2013-03-15

    申请人： King Saud University

    发明人： Saied Mohamed Hassan Darwish ,  Mohamed Zoubir A. Bendjaballah

    IPC分类号： G06F17/50 ,  G06G7/48 ,  A61F2/30 ,  A61F2/28

    CPC分类号： A61F2/30942 ,  A61F2/30756 ,  A61F2/3662 ,  A61F2/4657 ,  A61F2002/2825 ,  A61F2002/2828 ,  A61F2002/2832 ,  A61F2002/30606 ,  A61F2002/369 ,  A61F2002/4631 ,  A61F2002/4663 ,  G06F19/12

    摘要： Computer-implemented method of preoperatively determining the optimized external shape of a prosthetic femoral hip stem for use in partial cementing hip replacement procedures and of a reamer for reaming a cavity in the femur of a patient for implanting the prosthetic femoral hip stem, comprising: a) setting an initial external shape of the prosthetic femoral hip stem based on the reconstructed femur anatomy of a patient, b) generating an associated initial reamer by negatively offsetting the initial external shape of the prosthetic femoral hip stem by an uniform offset value δ, c) calculating contact stresses at the interface of the prosthetic femoral hip stem and the patient's femur when reamed by the initial reamer and d) optimizing the offset value δ, so that the contact stresses are within a predetermined acceptable range.

    摘要翻译： 计算机实现的方法，用于术前确定用于部分固定髋关节置换手术的假体股骨髋关节杆的优化外部形状，以及用于扩张患者股骨中的腔的铰刀，用于植入假体股骨髋部柄，包括： ）基于患者的重建股骨解剖结构设定假体股骨髋部骨的初始外部形状，b）通过以均匀的偏移值δ，c来抵消假体股骨髋部的初始外部形状来产生相关联的初始铰刀 ）计算由所述初始扩孔器扩孔时所述假体股骨髋骨和所述患者股骨的界面处的接触应力，以及d）优化所述偏移值δ，使得所述接触应力在预定的可接受范围内。

    Aspheric hip bearing couple
    5.
    发明授权
    Aspheric hip bearing couple 有权
    非球面髋关节轴承夫妇

    公开(公告)号：US08652213B2

    公开(公告)日：2014-02-18

    申请号：US13172693

    申请日：2011-06-29

    申请人： Edmund W. Frazee ,  Craig N. Ernsberger

    发明人： Edmund W. Frazee ,  Craig N. Ernsberger

    IPC分类号： A61F2/36

    CPC分类号： A61F2/4607 ,  A61F2/30 ,  A61F2/32 ,  A61F2/34 ,  A61F2/3609 ,  A61F2/40 ,  A61F2/4637 ,  A61F2002/2828 ,  A61F2002/30115 ,  A61F2002/30116 ,  A61F2002/302 ,  A61F2002/30327 ,  A61F2002/30403 ,  A61F2002/30649 ,  A61F2002/3065 ,  A61F2002/30655 ,  A61F2002/30657 ,  A61F2002/30658 ,  A61F2002/30935 ,  A61F2002/3496 ,  A61F2002/3498 ,  A61F2002/3623

    摘要： A joint prosthesis device comprises a head configured to fit within a cup and in one embodiment includes a first member for attachment to a first bone in a joint and including a first articulation surface portion defined by a first radius of curvature and a second member for attachment to a second bone in the joint and including a second articulation surface portion defined by a second radius of curvature and a third articulation surface defined by a third radius of curvature, wherein each of the second radius of curvature and the third radius of curvature has a length that is different from the length of the first radius of curvature by less than 0.05 millimeters and wherein the origin of the second radius of curvature is not coincident with the origin of the third radius of curvature.

    摘要翻译： 关节假体装置包括构造成装配在杯内的头部，并且在一个实施例中包括用于附接到关节中的第一骨骼的第一构件，并且包括由第一曲率半径限定的第一铰接表面部分和用于附接的第二构件 并且包括由第二曲率半径限定的第二关节表面部分和由第三曲率半径限定的第三关节表面，其中所述第二曲率半径和所述第三曲率半径中的每一个具有 长度不同于第一曲率半径的长度小于0.05毫米，并且其中第二曲率半径的原点与第三曲率半径的原点不一致。

    Computer-Implemented Method of Preoperatively Determining the Optimized External Shape of a Prosthetic Femoral Hip Stem
    6.
    发明申请
    Computer-Implemented Method of Preoperatively Determining the Optimized External Shape of a Prosthetic Femoral Hip Stem 有权
    计算机实施方法确定假肢股骨髋关节干优化外形

    公开(公告)号：US20130325430A1

    公开(公告)日：2013-12-05

    申请号：US13839658

    申请日：2013-03-15

    申请人： KING SAUD UNIVERSITY

    发明人： Saied Mohamed Hassan Darwish ,  Mohamed Zoubir A. Bendjaballah

    IPC分类号： G06F19/12

    CPC分类号： A61F2/30942 ,  A61F2/30756 ,  A61F2/3662 ,  A61F2/4657 ,  A61F2002/2825 ,  A61F2002/2828 ,  A61F2002/2832 ,  A61F2002/30606 ,  A61F2002/369 ,  A61F2002/4631 ,  A61F2002/4663 ,  G06F19/12

    摘要： Computer-implemented method of preoperatively determining the optimized external shape of a prosthetic femoral hip stem for use in partial cementing hip replacement procedures and of a reamer for reaming a cavity in the femur of a patient for implanting the prosthetic femoral hip stem, comprising: a) setting an initial external shape of the prosthetic femoral hip stem based on the reconstructed femur anatomy of a patient, b) generating an associated initial reamer by negatively offsetting the initial external shape of the prosthetic femoral hip stem by an uniform offset value δ, c) calculating contact stresses at the interface of the prosthetic femoral hip stem and the patient's femur when reamed by the initial reamer and d) optimizing the offset value δ, so that the contact stresses are within a predetermined acceptable range.

    摘要翻译： 计算机实现的方法，用于术前确定用于部分固定髋关节置换手术的假体股骨髋关节杆的优化外部形状，以及用于扩张患者股骨中的腔的铰刀，用于植入假体股骨髋部柄，包括： ）基于患者的重建股骨解剖结构来设定假体股骨髋部骨的初始外部形状，b）通过以均匀偏移值δ，c来抵消假体股骨髋部的初始外部形状来产生相关联的初始铰刀 ）计算由所述初始铰刀铰接时所述假体股骨髋骨和所述患者股骨的界面处的接触应力，以及d）优化所述偏移值δ，使得所述接触应力在预定的可接受范围内。

    Aspheric hip bearing couple
    8.
    发明授权
    Aspheric hip bearing couple 有权
    非球面髋关节轴承夫妇

    公开(公告)号：US07985262B2

    公开(公告)日：2011-07-26

    申请号：US12005837

    申请日：2007-12-28

    申请人： Edmund W. Frazee ,  Craig N. Ernsberger

    发明人： Edmund W. Frazee ,  Craig N. Ernsberger

    IPC分类号： A61F2/30

    CPC分类号： A61F2/4607 ,  A61F2/30 ,  A61F2/32 ,  A61F2/34 ,  A61F2/3609 ,  A61F2/40 ,  A61F2/4637 ,  A61F2002/2828 ,  A61F2002/30115 ,  A61F2002/30116 ,  A61F2002/302 ,  A61F2002/30327 ,  A61F2002/30403 ,  A61F2002/30649 ,  A61F2002/3065 ,  A61F2002/30655 ,  A61F2002/30657 ,  A61F2002/30658 ,  A61F2002/30935 ,  A61F2002/3496 ,  A61F2002/3498 ,  A61F2002/3623

    摘要： A joint prosthesis device comprises a head configured to fit within a cup and in one embodiment includes a first member for attachment to a first bone in a joint and including a first articulation surface portion defined by a first radius of curvature and a second member for attachment to a second bone in the joint and including a second articulation surface portion defined by a second radius of curvature and a third articulation surface defined by a third radius of curvature, wherein each of the second radius of curvature and the third radius of curvature has a length that is different from the length of the first radius of curvature by less than 0.05 millimeters and wherein the origin of the second radius of curvature is not coincident with the origin of the third radius of curvature.

    摘要翻译： 关节假体装置包括构造成装配在杯内的头部，并且在一个实施例中包括用于附接到关节中的第一骨骼的第一构件，并且包括由第一曲率半径限定的第一铰接表面部分和用于附接的第二构件 并且包括由第二曲率半径限定的第二关节表面部分和由第三曲率半径限定的第三关节表面，其中所述第二曲率半径和所述第三曲率半径中的每一个具有 长度不同于第一曲率半径的长度小于0.05毫米，并且其中第二曲率半径的原点与第三曲率半径的原点不一致。