Wideband Tympanometry:

• WB Tympanometry (WBT) - Pressurized.
• WB Absorbance (WBA) / WB Reflectance (WBR) - Non-Pressurized
• WB Acoustic Reflexes

Interacoustics has for some time cooperated with Douglas Keefe, Ph.D., and Boys Town National Research Hospital in developing research instrumentation for Wideband Absorbance (WBA) / Wideband Reflectance (WBR). Douglas Keefe and colleagues have been using Wideband measurements in middle-ear research for years, and the more recent cooperation with Interacoustics has now resulted in a complete research system for WB Tympanometry, analyzing middle ear acoustics in the 226Hz - 8kHz frequency range. This system with its ReflWin software, which was developed with grant support from the National Institutes of Health, is in current use in research at BTNRH and elsewhere.

The system is a research system only, and is not for sale to the general medical community, but interested investigators are invited to contact Bue Kristensen at Bue@Interacoustics.com for further details, or meet with him at one of the following meetings:

The AAS meeting March 6-8, 2008, Scottsdale, AZ,

The AAA meeting April 2-5, 2008, Charlotte, NC. You may contact Mr. Kristensen at the Interacoustics booth.

25.02.2008

The new generation ASSR System from Interacoustics®

ASSR is an invaluable diagnostic procedure for assessing the hearing of babies referred from hearing screening. However, the time required to perform reliable ASSR by traditional means (typically one hour) has been a disadvantage.

The new generation ASSR system from Interacoustics® contains two features that together will halve the time required to approximate the audiogram. The system is based on a stimulus form that maximizes the response from the basilar membrane and an advanced detection algorithm that analyses the information in the evoked response to extract frequency-specific information.

The system has a high retest reliability and can test both ears at the same time with 4 simultaneous frequencies, each of which can be controlled independently.

Designed for the Interacoustics® Eclipse platform, the system can deliver results directly into NOAH. Customers who do not use NOAH will benefit from the OtoAccess™ database which is included in the package.

06.07.2007

New functions for the AT235h

The AT235h Automatic Middle Ear Analyzer has recently gained some new functions.

For tympanometry, in addition to the automatic mode, the pump action can now be adjusted manually. Pressure change is controlled by the "Incr" and "Decr" keys. Pump speed can be toggled between three speeds using the F2 key.

The AT235h also has a second eustachian tube function test. Tube function can now be tested both for perforated and intact eardrums.

The unit can still be delivered with a built-in thermal printer but the port on the rear-panel for an external printer has been removed. This means the AT235h can no longer print directly to an external printer.

However, the RS232 port on the rear panel has been replaced by a USB port for PC-connection. This should cover most situations where an external printout is needed.

21.06.2007