Patent ID: 8419655
Filing Date: 2013-04-16
Classification: A61B

Abstract:
1. A system for measuring aural acoustic immittance comprising: an insertion probe including an air pump, the probe configured for insertion into the an external ear canal such that an airtight seal is obtained wherein an air pressure within an ear canal interior of the probe is capable of being varied; at least one speaker in the probe for producing a measurement sound in the ear canal; a microphone in the probe for producing a measurement signal of a sound pressure level in the sealed ear canal; a signal generator and an amplifier operatively coupled with the air pump of the probe, the signal generator, the amplifier, and the air pump being collectively configured to vary an air pressure through the probe; a measurement means for producing a measurement of an immittance of a middle ear beyond the external ear canal, whereby a measured signal is converted to a frequency domain and a measured value is recorded in a measurement system.