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  • Author or Editor: Gilles Bertrand x
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André Olivier and Gilles Bertrand

✓ A stereotaxic device is described for percutaneous twist-drill insertion of depth electrodes for seizure recording and brain biopsy. This apparatus, which permits a lateral orthogonal approach, has been used in conjunction with a Leksell type of stereotaxic frame. Its main advantages are the ample working space it provides at the site of insertion of intracerebral electrodes, and the stable attachment it offers in fixing these electrodes on the skull.