Patent ID: 8226594
Filing Date: 2012-07-24
Classification: A61B,A61K,A61M

Abstract:
1. A system for treating a disorder of a central nervous system (CNS), comprising: first and second conduits, wherein, when in an operative position, distal ends of the first and second conduits open into a portion of a patient's CNS with direct access to cerebrospinal fluid (CSF) and wherein, when in the operative position, a proximal end of the second conduit opens to drain CSF from the CNS; a first reservoir implantable within the patient's body and holding a first material to be introduced to the CNS; an intracranial pressure detecting unit including a transmitter for providing auditory signals to the patient and a BAER analyzer for analyzing brainstem evoked auditory potentials to determine a current intracranial pressure; a first pump coupled to the first reservoir and the first conduit introducing the first material to the CNS via the first conduit; and a brain activity detection unit detecting and analyzing brain activity of the patient, the brain activity detection unit controlling drainage of CSF based on input from the intracranial pressure detecting unit to maintain intracranial pressure within a predetermined range, wherein the BAER analyzer collects BAER data corresponding to auditory signals generated by the transmitter and analyzes a BAER waveshape determined based on the BAER data to detect peaks of the BAER waveshape and determine a time interval between a first peak and a fifth peak of the BAER waveshape to determine the intracranial pressure.