Double-headed stereotaxic carrier apparatus for insertion of depth electrodes. Technical note.

A carrier device has been developed for use with a sterotaxic apparatus. It can be attached to the OBT frame or to any Leksell-type frame. With this carrier, intracranial insertion of commercially available depth electrodes with built-in connectors is possible. By using two different heads mounted on a single carrier, the surgeon can perform a transcutaneous twist-drill trephination and attach the screws through a chuck, adjust the device in the horizontal plane, and then insert and anchor the electrodes by using a small platform with a hinged roof.