Patent ID: 8172769

Claim:
An apparatus for measuring intra cranial pressure, comprising: an acoustic eye patch conformably adapted to an eyeball of a patient, said eye patch having sensors for measuring acoustic signals in the brain, without the sensors coming into contact with the skull; a sweep generator for applying acoustic signals to the brain across the skull of the patient, said signals sweeping a predetermined range, a resonant frequency of said eyeball of the patient being within said predetermined range, said predetermined range covering a corresponding range of resonant frequencies across a range of patients; and an analyzer for determining an intra cranial pressure from a degree of damping of said swept acoustic signal at the resonant frequency of said eyeball of the patient, said intra cranial pressure being transmitted directly to said eyeball where said pressure and said damping are measured without attenuation by the skull of the patient, said resonant frequency and degree of damping being determined from an output of the acoustic eye patch, wherein said degree of damping is correlated to a measure of said intra cranial pressure.