Articular disc prosthesis and method for implanting the same
    1.
    发明授权
    Articular disc prosthesis and method for implanting the same 有权
    关节盘假体及其植入方法

    公开(公告)号:US07179294B2

    公开(公告)日:2007-02-20

    申请号:US10412700

    申请日:2003-04-11

    IPC分类号: A61F2/44 A61B17/56

    摘要: An articular disc prosthesis and method of implanting the same within an intervertebral space between adjacent vertebral bodies. The prosthesis includes a pair of articular components and an articular ball disposed therebetween. Each of the articular components includes an outer shell portion and a removable inner insert portion. The insert portion includes a concave articular surface sized and shaped to receive a portion of the articular ball to provide articulating motion between the articular components. The outer shell portion includes a central hemi-cylindrical portion, a pair of laterally extending flanges, and an axially extending lip. Following removal of the natural intervertebral disc, a pair of hemi-cylindrical recesses are formed along a central region of the adjacent vertebral bodies to a predetermined depth. The prosthesis is implanted within the prepared disc space by axially displacing the hemi-cylindrical central portions of the articular components along the hemi-cylindrical recesses in the vertebral bodies. The lateral flanges and the axial lip of the articular components bear against the endplates of the adjacent vertebral bodies to stabilize the prosthesis and to prevent subsidence.

    摘要翻译: 关节椎间盘假体和将其植入相邻椎体之间的椎间空间内的方法。 假体包括一对关节部件和设置在其间的关节球。 每个关节部件包括外壳部分和可移除的内部插入部分。 插入部分包括凹入的关节表面,其尺寸和形状适于接收关节球的一部分以在关节部件之间提供关节运动。 外壳部分包括中心半圆柱形部分,一对横向延伸的凸缘和轴向延伸的唇缘。 在去除天然椎间盘后,沿着相邻椎体的中心区域形成一对半圆柱形凹部至预定的深度。 通过沿着椎体中的半圆柱形凹部轴向移位关节部件的半圆柱形中心部分,将假体植入在制备的椎间盘空间内。 关节部件的侧向凸缘和轴向唇缘抵靠相邻椎骨的端板,以稳定假体并防止下沉。

    Articular disc prosthesis and method for implanting the same
    4.
    发明授权
    Articular disc prosthesis and method for implanting the same 有权
    关节盘假体及其植入方法

    公开(公告)号:US08211175B2

    公开(公告)日:2012-07-03

    申请号:US11542673

    申请日:2006-10-03

    IPC分类号: A61F2/44

    摘要: An articular disc prosthesis and method of implanting the same within an intervertebral space between adjacent vertebral bodies. The prosthesis includes a pair of articular components and an articular ball disposed therebetween. Each of the articular components includes an outer shell portion and a removable inner insert portion. The insert portion includes a concave articular surface sized and shaped to receive a portion of the articular ball to provide articulating motion between the articular components. The outer shell portion includes a central hemi-cylindrical portion, a pair of laterally extending flanges, and an axially extending lip. Following removal of the natural intervertebral disc, a pair of hemi-cylindrical recesses are formed along a central region of the adjacent vertebral bodies to a predetermined depth. The prosthesis is implanted within the prepared disc space by axially displacing the hemi-cylindrical central portions of the articular components along the hemi-cylindrical recesses in the vertebral bodies. The lateral flanges and the axial lip of the articular components bear against the endplates of the adjacent vertebral bodies to stabilize the prosthesis and to prevent subsidence.

    摘要翻译: 关节椎间盘假体和将其植入相邻椎体之间的椎间空间内的方法。 假体包括一对关节部件和设置在其间的关节球。 每个关节部件包括外壳部分和可移除的内部插入部分。 插入部分包括凹入的关节表面,其尺寸和形状适于接收关节球的一部分以在关节部件之间提供关节运动。 外壳部分包括中心半圆柱形部分,一对横向延伸的凸缘和轴向延伸的唇缘。 在去除天然椎间盘后,沿着相邻椎体的中心区域形成一对半圆柱形凹部至预定的深度。 通过沿着椎体中的半圆柱形凹部轴向移位关节部件的半圆柱形中心部分,将假体植入在制备的椎间盘空间内。 关节部件的侧向凸缘和轴向唇缘抵靠相邻椎骨的端板,以稳定假体并防止下沉。

    Intervertebral prosthetic joint
    7.
    发明授权
    Intervertebral prosthetic joint 有权
    椎间假体关节

    公开(公告)号:US06740118B2

    公开(公告)日:2004-05-25

    申请号:US10042589

    申请日:2002-01-09

    IPC分类号: A61F244

    摘要: An intervertebral prosthetic joint including a first articular component adapted to engage a first vertebra and a second articular component adapted to engage a second vertebra. The articular components include abutting convex and concave articular surfaces that cooperate to permit articulating motion between the articular components. At least one of the convex and concave articular surfaces includes at least one surface depression that is configured to facilitate removal of matter disposed between abutting portions of the articular surfaces. In one embodiment of the prosthetic joint, each of the articular components has a vertebral bearing surface and a flange extending therefrom that is configured to penetrate a corresponding one of the first and second vertebrae, with the flange defining at least one opening extending therethrough to permit bone through-growth.

    摘要翻译: 包括适于接合第一椎骨的第一关节部件和适于接合第二椎骨的第二关节部件的椎间假体关节。 关节部件包括邻接的凸起和凹形关节表面,其协作以允许关节部件之间的关节运动。 凸和凹关节表面中的至少一个包括至少一个表面凹陷,其被构造成便于去除设置在关节表面的邻接部分之间的物质。 在假体关节的一个实施例中,每个关节部件具有椎骨支承表面和从其延伸的凸缘,其被构造成穿透第一和第二椎骨中相应的一个,凸缘限定延伸穿过其中的至少一个开口以允许 骨通过生长。