tympanometry-instruments

Tympanometry

Industry-leading tympanometers

Screening and diagnostic tympanometry solutions for fast
and accurate evaluation of the middle-ear (tympanic membrane)
and the conduction bones. Designed to fulfil the need of
audiologists and hearing healthcare professionals.

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Tympanometers

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  • otowave-102-thumbnail

    Otowave 102

    One of the smallest tympanometers on the market, offering 226Hz tympanometry and ipsilateral reflex test functions (0.5, 1, 2 and 4kHz). A screening middle-ear analyser with exchangeable batteries, making it the perfect choice for audiologists.

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  • otowave-102-c-thumbnail

    Otowave 102-C

    Offering 226Hz tympanometry and ipsilateral reflex test functions (0.5, 1, 2 and 4kHz), the Otowave 102-C is a cradle charged handheld tympanometer. This allows for easy and immediate data transfer of test results to our ampliSuite software. 

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  • otowave-302-thumbnail

    Otowave 302 & 302+

    Desktop tympanometers with a handheld probe, combining the most important middle ear function tests all-in-one. The test sequence of 226Hz can be combined with ipsilateral and contralateral reflex measurements (0.5, 1, 2 and 4kHz) and optional data processing.

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  • otowave-202-thumbnail

    Otowave 202 & 202H

    The Otowave 202 series are combined portable (battery operated) and desktop tympanometers (mains power). Thanks to its handheld probe, both 226Hz and 1000Hz tympanometry tests, ipsilateral and contralateral reflex testing (0.5, 1, 2 and 4kHz) can be conducted.

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Our promise

Whether portable or desktop, exchangeable batteries or cradle charged, default or customisable user settings, our Otowave tympanometers will fulfil the need of middle ear measurement requirements in a fast and effective manner.

As a company we are very proud to be able to provide hearing test solutions on a global scale for a wide variety of companies in industries such as (and not limited to) the military, police forces, the NHS, private medical practices, manufacturers and the aviation industry.

Frequently asked questions

  • What is an acoustic reflex measurement?

    Just like tympanometry measurements, a probe is inserted into the ear canal. While playing a continues probe tone, short test signals (e.g. 0.5, 1 or 2kHz) are presented at levels of 70 - 100dB, triggering the stapes muscle to contract.

    Through this contraction, the ossicular chain and ear drum stiffens as well, leading to a measurable decrease of compliance in the ear canal. The acoustic reflex is measurable in both ears (ipsilateral and contralateral).

    Why measure acoustic reflexes?

    Acoustic reflexes are regularly used in audiological testing and measure the stapedius and the tensor tympani reflex generated eardrum movement in response to intense sound. Acoustic reflex measurements provide feedback on:

    • Type and degree of hearing loss (conductive, sensory, neural)
    • Injury of the facial nerve or vestibulocochlear nerve
    • Otosclerosis

    What is tympanometry?

    First developed in the 1950's, tympanometry is an objective measurement used to evaluate the condition of the middle ear eardrum and the conduction bones by creating variations of air pressure in the ear canal (1Terkildsen et al.).

    Since then, the test technique has further developed and become a common part of the audiological test routine.

    1Terkildsen, K. and K.A. Thomsen (1959). The influence of pressure variations on the impedance measuring bridge for clinical use. J. Laryngol. Otol. 73, 409-418.

  • What is a tympanometer?

    A tympanometer is an instrument that measures the pathology of the middle ear, including the ear drum. It is often referred to as a middle ear analyser, impedance or admittance meter, as the so-called tympanometry measurement is only one part of the entire middle ear assessment.

    Further tests include measurement of the interaural muscles (acoustic reflex, decay and latency tests) as well as eustachian tube tests. 

    What does tympanometry measure?

    Clinical applications of tympanometry measurements are the identification of: 

    • Middle ear effusion (Otitis media) 
    • Perforation or cicatrisation of the ear drum
    • Ear grommets
    • Eustachian tube dysfunction
    • Tympanosclerosis
    • Otosclerosis
    • Cholesteatoma

    What is a tympanogram?

    When the eardrum is activated by a sound wave, part of the sound is absorbed and sent through the middle ear, while the other part of the sound wave is reflected.

    A tympanogram is a graphic representation of how the eardrum moves in response to the air pressure in the ear canal when performing tympanometry. The following data is obtained from tympanogram:

    • Compliance with the middle ear system
    • Ear canal volume
    • Middle ear pressure
    • Pattern correlated with various disorders