Patent ID: 9456757
Filing Date: 2016-10-04
CPC Classification: A61B

Claim Text:
1. A system for monitoring hydrocephalus, cerebral edema, and intracranial bleeding in noninvasive way, the system comprising: at least one signal generator configured to generate an electromagnetic wave; at least one source electrode or coil configured to emit the electromagnetic wave to a brain tissue; at least one detecting electrode configured to detect said wave that propagates through said brain tissue; a digitizer operatively connected to said electrode and configured to digitize a signal detected at said electrode; a quadrature detector operatively connected to the digitizer and configured to demodulate the digitized signal and obtain in-phase and quadrature components of the signal; an envelope and phase detector operatively connected to the quadrature detector and configured to estimate a magnitude and phase of the signal; a special-purpose processor operatively connected to the envelope and phase detector and specially configured to estimate tissue characteristics that are related to status of hydrocephalus, cerebral edema, and intracranial bleeding from the magnitude and phase.