| 摘要 |
<p>An implant in which a primary member is secured to the bone and has a recess receiving a secondary member. A screw threaded into a threaded bore of the secondary member drives a compression ring against an O-ring to permit the same radially and axially against the primary member to secure the secondary part to the primary part, seal the two relative to one another and allow a releasable connection.</p> |
