The Interacoustics AT235h is an automatic impedance audiometer well suited for clinics doing screening, as well as diagnostic work.
Neonatal screening programs will particularly appreciate the presence of
high probe tone tympanometry, allowing more reliable tympanometric results in neonates.

 

 

High Frequency Tympanometry

In addition to the standard 226Hz probetone tympanogram, it is possible to record a similar tympanogram using a higher frequency probetone. As different screening protocols call for different frequencies of the high probetone, the AT235h offers 678Hz, 800Hz or 1000Hz as selected by the user.

A tympanogram recorded using one of the high probetones is generally considered better suited for screening of neonates than tympanograms obtained using the traditional 226Hz probetone.

  Two Automatic Reflex Tests

Reflex testing is very easy, but allows also those in need of versatility to control all details of the test. Two separate test protocols may be programmed and either may be selected by the push of a button. All parameters are easily programmable by the end user if the supplied tests are not optimum suited for test routines of the clinic. In addition to testing with a set of fixed intensities, available automated functions include automatic intensity search and automatic test for reflex growth.
The AT235h does not restrict mixing of ipsi and contra stimuli and also features noise for stimulation.

There are few limitations on storing and printing of reflex results, as more than 40 reflexes may be stored per ear.

Reflex test with full manual stimulus control is also available, and this manual function also allows repeating or changing test result obtained by one of the automatic test protocols.

Decay – Contra and Ipsi

Acoustic reflex decay test is available with ipsilateral stimulation as well as with contralateral stimulation.

Children’s Train

A train may be displayed on the screen, to get the attention of the child. Test results can be monitored simultaneously with displaying the train.

 

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