| 摘要 |
<p>An intracranial bolt, for installation in an opening in the skull to provide access to the brain for a medical device, has a bore (28) for the passage of the medical device, and an inflatable member (44) in the bore which when inflated engages a medical device in the bore, releasably anchoring the device. The inflatable member comprises a cylinder of flexible sheet material and is secured to the wall of the bore defining a pocket (48). A passage (58) extends through the bolt to the pocket for the introduction of fluid into the pocket to expand the inflatable member radially inwardly. The bolt is used by forming an opening in the skull; installing the bolt in the opening; and securing a cap (42) on the bolt. The cap can be removed and a medical device can be inserted through the bolt. The inflatable member can be inflated to hold the medical device in place.</p> |
