Intracranial pressure monitoring probe

摘要

A probe for enabling intracranial pressure in the subarachnoid space to be determined is inserted through an opening in the scalp, into and through the outer table, diploe and inner table of the skull and dura mater and arachnoid into the subarachnoid space. The probe comprises a threaded shaft having a lumen communicating with openings at the end of the shaft into the subarachnoid space so that the fluid is coupled into and through the shaft openings into the shaft bore and the pressure of the fluid can be coupled then to a pressure transducer. The threaded portion of the shaft has a length sufficient to threadingly engage the outer table, the diploe and the inner table. A lock nut threadingly engages the threaded portion and is dimensioned to fit into the scalp opening to bear against the hard outer table. The shaft threads engaging the outer and inner tables and the diploe cooperate with the lock nut to securely hold the shaft in place.