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发明授权
US07223290B2 Axially compressible artificial intervertebral disc having a captured ball and socket joint with a solid ball and compression locking post 有权
轴向可压缩人造椎间盘，具有捕获的球窝接头，具有固体球和压缩锁定柱

Axially compressible artificial intervertebral disc having a captured ball and socket joint with a solid ball and compression locking post
摘要：
An artificial disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, separated by a ball and socket joint that includes a solid ball mounted to protrude from one of the baseplates. The ball is captured within a curvate socket formed in a peak of a convex structure integral with the other of the baseplates. The socket is formed by opposing curvate pockets, one on the convex structure and one on a retaining cap that is secured to the other of the baseplates. The ball rotates and angulates in the socket. The ball and socket joint therefore permits the baseplates to rotate and angulate relative to one another.
摘要（中）：

一种具有一对相对基板的人造盘，用于抵靠相对的椎骨表面，由球窝接头隔开，所述球窝接头包括安装成从所述底板之一突出的实心球。 球被捕获在形成在与另一个基板一体的凸结构的峰中的弯曲插座中。 插座由相对的弯曲袋形成，一个在凸形结构上，一个在固定帽上，固定在另一个基板上。 球在套筒中旋转并成角度。 因此，球窝接头允许基座相对于彼此旋转和成角度。

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