2 Unpacking and installation
8
Madsen Zodiac
General features
Depending on the configuration of Madsen Zodiac and the Immittance module, you can:
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perform a range of immittance tests
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view the progression of the tests online
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view and print test results
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view historic tympanometry results
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upload test results from tests performed while Zodiac was offline
1.2
Intended use
Madsen Zodiac is an auditory impedance tester intended to change the air pressure in the external auditory canal and
measure and graph the mobility characteristics of the tympanic membrane to evaluate the functional condition of the
middle ear. This device measures the acoustic reflex threshold and decay testing and Eustachian tube function testing for
intact and perforated tympanic membranes.
Users: audiologists, ENTs and other health care professionals in testing the hearing of infants, children and adults.
Use: clinical, diagnostic and screening tympanometry and reflex measurements.
Madsen Zodiac uses technologies that are highly effective for clinical and screening purposes. Tympanometry and
acoustic reflex measurements measure the mechanical response of the middle ear and form a basis for evaluating
whether the related physiological structures are functioning correctly or not.
Clinical Benefit: Madsen Zodiac is used to conduct diagnostic and clinical objective testing used to evaluate the condition
of the middle ear eardrum (tympanic membrane) and the conduction bones by creating variations of air pressure in the
ear canal.
1.2.1
Contraindications
2
Caution
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If a patient shows discomfort during the test, stop the test. Any measured results are stored.
Caution
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Look into the ear canal. Perform an otoscopy to assess the status of the outer ear before you insert the
probe. If the ear canal is blocked, this may affect the result of the test. Clean the ear canal if needed. Make sure
that there is no residual fluid in the patient's ear after cleaning or wax removal.
Caution
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Do not perform testing on patients displaying the following symptoms without the approval of a
medical doctor:
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If there is discharge in the ear
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If the patient recently has undergone middle ear surgery
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If the ear canal is occluded
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If the patient suffers from acute trauma
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If the patient experiences severe discomfort
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If the patient displays symptoms of tinnitus or hyperacusis. Do not use excessively loud acoustic stimuli for
acoustic reflex measurements.
