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The V-TAG is intended to assist with stereotactic guidance, placement, and fixation for the operation of surgical instruments or devices during the planning and operation of neurological procedures performed in conjunction with preoperative and perioperative MR imaging. These procedures include laser coagulation, biopsies, catheter placement and electrode placement procedures.

The V-TAG™ device is a single-use, skull-mounted, rigid trajectory array guide used in stereotactic surgical procedures in adults. The V-TAG can be manipulated to provide a wide range of surgical trajectories into the head. An image-guided neuronavigational system loaded with a stereotactic surgical plan is used to align the V-TAG to the planned trajectory; once aligned, the V-TAG is securely locked to provide a stable instrument guide. After positioning of the V-TAG, magnetic resonance imaging (MRI) is used to confirm alignment with the planned trajectory. Intracranial placement of a neurosurgical device or surgical instrument using the V-TAG device is only to be performed after MRI confirmation of the trajectory.