Self centering, anti-seizing acetabular liner
    1.
    发明授权
    Self centering, anti-seizing acetabular liner 有权
    自动定中心,防止髋臼内胆

    公开(公告)号:US08771367B2

    公开(公告)日:2014-07-08

    申请号:US13623158

    申请日:2012-09-20

    IPC分类号: A61F2/34 A61F2/30

    摘要: A liner adapted for insertion into an acetabular shell for use in hip arthroplasty. The liner includes a concave inner surface adapted to engage a femoral head. The liner also includes an outer surface adapted to engage the acetabular shell and a rim that extends between the inner surface and the outer surface. The outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section.

    摘要翻译: 适于插入髋臼外壳中以用于髋关节置换术的衬垫。 衬垫包括适于接合股骨头的凹形内表面。 衬里还包括适于接合髋臼壳的外表面和在内表面和外表面之间延伸的边缘。 外表面包括从边缘延伸的锁定部分,在第一过渡点处从锁定部分延伸的复合弯曲部分和从复合弯曲部分延伸的圆顶部分,其中在第一转变点处, 弯曲部分与锁定部分相切。

    Aspheric hip bearing couple
    2.
    发明申请
    Aspheric hip bearing couple 有权
    非球面髋关节轴承夫妇

    公开(公告)号:US20090171466A1

    公开(公告)日:2009-07-02

    申请号:US12005837

    申请日:2007-12-28

    IPC分类号: A61F2/30

    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。

    MEDICAL DEVICE AND METHOD
    3.
    发明申请
    MEDICAL DEVICE AND METHOD 审中-公开
    医疗器械及方法

    公开(公告)号:US20120029651A1

    公开(公告)日:2012-02-02

    申请号:US13148015

    申请日:2010-02-04

    IPC分类号: A61F2/34

    摘要: A receptacle for receiving a mating member in an orthopaedic joint, wherein the receptacle comprises: a first portion shaped so as to contact with the mating member, in normal use; a second portion shaped so as to not contact with the mating member, in normal use, wherein the first portion comprises a non-spherical surface. A mating member for being received by a receptacle, wherein the mating member comprises: a first portion shaped so as to contact with the receptacle, in normal use; a second portion shaped so as to not contact with the receptacle, in normal use, wherein the first portion comprises a non-spherical surface. Also disclosed are receptacles and heads of generally elliptical shape.

    摘要翻译: 一种用于在矫形关节中接受配合构件的容器,其中所述容器包括:正常使用时成形为与所述配合构件接触的第一部分; 在正常使用中第二部分成形为不与配合构件接触,其中第一部分包括非球形表面。 一种用于由容器接收的配合构件,其中所述配合构件包括:在正常使用中成形为与所述容器接触的第一部分; 在正常使用中形成为不与容器接触的第二部分,其中第一部分包括非球形表面。 还公开了一般为椭圆形的插座和头部。

    Aspheric Hip Bearing Couple
    4.
    发明申请
    Aspheric Hip Bearing Couple 有权
    非球面髋关节轴承夫妇

    公开(公告)号:US20110257759A1

    公开(公告)日:2011-10-20

    申请号:US13172693

    申请日:2011-06-29

    IPC分类号: A61F2/30

    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。

    Manufacturing a component with a near spherical surface
    5.
    发明申请
    Manufacturing a component with a near spherical surface 失效
    制造具有近球面的部件

    公开(公告)号:US20050087047A1

    公开(公告)日:2005-04-28

    申请号:US10501655

    申请日:2003-01-16

    申请人: Richard Farrar

    发明人: Richard Farrar

    摘要: A method of making a component (2) of an orthopaedic joint prosthesis, which has a bearing surface whose shape corresponds approximately to a part of a sphere and is symmetrical about its polar axis, involves use of a cutting tool (6) which has a circular cutting edge (12) and which can be rotated about an axis (8) which is perpendicular to the plane containing the said cutting edge (12). The method involves (a) rotating the component about its polar axis (4) and rotating the cutting tool (6) about its axis (8), with the cutting edge (12) of the cutting tool (6) in contact with the surface of the component (2); (b) moving the cutting tool (i) in a direction parallel to the polar axis (4) of the component (2) while leaving the angle between the axis of the cutting tool (6) and the polar axis of the component (2) unchanged, and (ii) along its axis (8); and (c) repeating step (a). The movements (i) and (ii) of the cutting tool (6) cause the radius of curvature of the bearing surface to change continuously and monotonically as the angle between the radius and the polar axis of the component changes, so that the shape of the bearing surface deviates from that of a true sphere in such a way that discontinuities in the shape of the bearing surface as a result of individual movements are minimised.

    摘要翻译: 一种制造整形外科关节假体的组件(2)的方法,该方法具有其形状对应于球体的一部分并且关于其极轴对称的支承表面,包括使用切割工具(6),其具有 圆形切割边缘(12),并且其可以围绕垂直于包含所述切割边缘(12)的平面的轴线(8)旋转。 该方法包括(a)围绕其极轴(4)旋转部件并围绕其轴线(8)旋转切割工具(6),切割工具(6)的切割边缘(12)与表面 的组分(2); (b)在平行于部件(2)的极轴(4)的方向上移动切割工具(i),同时在切割工具(6)的轴线和部件(2)的极轴之间保持角度 )不变,(ii)沿其轴线(8); 和(c)重复步骤(a)。 切割工具(6)的运动(i)和(ii)使得轴承表面的曲率半径随着部件的半径和极轴之间的角度的变化而连续且单调地改变,从而形状 轴承表面与真实球体的轴承表面偏离,使得作为单独运动的结果的轴承表面形状的不连续性最小化。

    Aspheric hip bearing couple
    7.
    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

    IPC分类号: A61F2/36

    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。

    SELF CENTERING, ANTI-SEIZING ACETABULAR LINER
    8.
    发明申请
    SELF CENTERING, ANTI-SEIZING ACETABULAR LINER 有权
    自动中心,防攻螺母

    公开(公告)号:US20130085576A1

    公开(公告)日:2013-04-04

    申请号:US13623158

    申请日:2012-09-20

    IPC分类号: A61F2/34

    摘要: A liner adapted for insertion into an acetabular shell for use in hip arthroplasty. The liner includes a concave inner surface adapted to engage a femoral head. The liner also includes an outer surface adapted to engage the acetabular shell and a rim that extends between the inner surface and the outer surface. The outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section.

    摘要翻译: 适于插入髋臼外壳中以用于髋关节置换术的衬垫。 衬垫包括适于接合股骨头的凹形内表面。 衬里还包括适于接合髋臼壳的外表面和在内表面和外表面之间延伸的边缘。 外表面包括从边缘延伸的锁定部分,在第一过渡点处从锁定部分延伸的复合弯曲部分和从复合弯曲部分延伸的圆顶部分,其中在第一转变点处, 弯曲部分与锁定部分相切。

    Aspheric hip bearing couple
    9.
    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

    IPC分类号: A61F2/30

    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。

    Manufacturing a component with a near spherical surface
    10.
    发明授权
    Manufacturing a component with a near spherical surface 失效
    制造具有近球面的部件

    公开(公告)号:US07469474B2

    公开(公告)日:2008-12-30

    申请号:US10501655

    申请日:2003-01-16

    申请人: Richard Farrar

    发明人: Richard Farrar

    IPC分类号: B21D53/10

    摘要: A method of making a component (2) of an orthopaedic joint prosthesis, which has a bearing surface whose shape corresponds approximately to a part of a sphere and is symmetrical about its polar axis, involves use of a cutting tool (6) which has a circular cutting edge (12) and which can be rotated about an axis (8) which is perpendicular to the plane containing the said cutting edge (12). The method involves (a) rotating the component about its polar axis (4) and rotating the cutting tool (6) about its axis (8), with the cutting edge (12) of the cutting tool (6) in contact with the surface of the component (2); (b) moving the cutting tool (i) in a direction parallel to the polar axis (4) of the component (2) while leaving the angle between the axis of the cutting tool (6) and the polar axis of the component (2) unchanged, and (ii) along its axis (8); and (c) repeating step (a). The movements (i) and (ii) of the cutting tool (6) cause the radius of curvature of the bearing surface to change continuously and monotonically as the angle between the radius and the polar axis of the component changes, so that the shape of the bearing surface deviates from that of a true sphere in such a way that discontinuities in the shape of the bearing surface as a result of individual movements are minimised.

    摘要翻译: 一种制造整形外科关节假体的组件(2)的方法,该方法具有其形状对应于球体的一部分并且关于其极轴对称的支承表面,包括使用切割工具(6),其具有 圆形切割边缘(12),并且其可以围绕垂直于包含所述切割边缘(12)的平面的轴线(8)旋转。 该方法包括(a)围绕其极轴(4)旋转部件并围绕其轴线(8)旋转切割工具(6),切割工具(6)的切割边缘(12)与表面 的组分(2); (b)在平行于部件(2)的极轴(4)的方向上移动切割工具(i),同时在切割工具(6)的轴线和部件(2)的极轴之间保持角度 )不变,(ii)沿其轴线(8); 和(c)重复步骤(a)。 切割工具(6)的运动(i)和(ii)使得轴承表面的曲率半径随着部件的半径和极轴之间的角度的变化而连续且单调地改变,从而形状 轴承表面与真实球体的轴承表面偏离,使得作为单独运动的结果的轴承表面形状的不连续性最小化。