Integra Cranial Access Kit, Model Number HITHSP10, Rx Only. || Integra Cranial Access Kits (CRAK) allows for burr hole access to the subarachnoid space or the lateral ventricles of the brain. The kit is intended to be used with an external drainage and monitoring system in selected patients to reduce intracranial pressure (ICP), to monitor CSF, to provide temporary drainage of Cerebrospinal Fluid (CSF), and to monitor ICP. These kits contain all components and accessories required for burr hole access into the cranium.