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EarCheck is an advanced medical instrument which accurately detects the presence of middle ear fluid (i.e., otitis media with effusion) that may be associated with acute ear infection. The device is intended to assist parents in determining when to seek medical attention. The instrument is designed for use in the home by parents and other caregivers on children from 6 months to young adult.

EarCheck determines the condition of the middle ear by measuring the response of the ear drum to a sound stimulus. Using a built-in microphone, EarCheck registers the intensity of different frequencies of reflected sound waves to detect the absence or presence of fluid in the middle ear. The instrument analyzes the mechanical resonance characteristic of the ear drum, indicating the condition of the ear by measuring the Spectral Gradient angle of the ear drum's resonance curve. In a normal ear, the ear drum has full freedom of motion, producing a shallow wide Spectral Gradient angle. When fluid is present, the motion of the ear drum is restricted and a narrower Spectral Gradient angle results. The determination of the absence or presence of middle ear fluid is displayed in one of five levels on the instrument.

EarCheck Pro is an advanced medical instrument which accurately detects the presence of middle ear fluid (i.e., otitis media with effusion) that may be associated with acute ear infection. The instrument is designed for use by doctors and other medical professionals on children from 6 months to young adult.

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