| 摘要 |
An improved apparatus and method for accurately and safely implanting a probe into a brain including use of two cannulas having side-gaps extending longitudinally and opening into cavities. During implantation, the second cannula is positioned in the cavity of the first cannula such that the side-gaps are not juxtaposed, thereby defining a passageway through which the probe is inserted into the brain. Because the passageway is circumferential enclosed, the probe cannot veer into unintended brain tissue and is precisely positioned in the brain. The cannulas are then rotated relative to one another so that they may be separated from the probe either during or after withdrawal from the brain.
|
