| 摘要 |
<p>The artificial disk (10) of the invention comprises a pair of cylindrically shaped members (14) in a stacked relationship and a flexible spacer (40) therebetween. The members (14) are joined together in a ball (30) and socket (20) manner which provides full rotational movement. The flexible spacer (40) provides the resilient compressive strength to maintain the vertical separation of the adjacent vertebrae. Each cylindrically shaped member (14) is fastened to the bone with an arcuate plate (42) and is secured with a fastener (43) that engages the bone and a threaded recess in the cylindrically shaped member.</p> |
