A new cranial access device for cerebral monitoring

We report the design and clinical application of a new cranial access devic e (triple bolt) designed to transmit intracranial pressure monitors, multip arameter sensors, microdialysis catheters and laser doppler probes into the cerebral parenchyma. The objective was to achieve insertion on the Neuro-C ritical Care Unit, imaging compatibility, angled trajectories and versatili ty of monitor application. The bolt has been successfully applied to 100 pa tients with severe head injury and subarachnoid haemorrhage.