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Related Experiment Videos

Skull simulator for direct bone conduction hearing devices.

B Håkansson1, P Carlsson

  • 1Department of Applied Electronics, Chalmers University of Technology, Göteborg, Sweden.

Scandinavian Audiology
|January 1, 1989
PubMed
Summary
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A new skull simulator, the TU-1000, has been developed for objective measurements of Bone-Anchored Hearing Aids (BAHA). This device ensures quality assurance and fitting evaluation for direct bone conduction hearing devices.

Area of Science:

  • Audiology
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Bone-Anchored Hearing Aids (BAHA) improve quality of life for patients with middle ear disorders.
  • Growing acceptance of BAHA in rehabilitation programs necessitates objective measurement equipment.
  • Quality assurance, service, and fitting evaluation require specialized tools for BAHA.

Purpose of the Study:

  • To develop equipment for objective frequency response measurements of BAHA.
  • To introduce the TU-1000 skull simulator for BAHA assessment.
  • To meet the demand for reliable BAHA measurement tools.

Main Methods:

  • Development of the TU-1000 skull simulator, characterized as a rigid mass body.
  • Measurement of mass body motion using an accelerometer.

Related Experiment Videos

  • Amplification of accelerometer output via a precalibrated amplifier proportional to BAHA output force.

    • Main Results:

    • The TU-1000 skull simulator accurately measures BAHA output force.
    • Reliable measurements are achieved across a frequency range of 100 Hz to 10 kHz.
    • The simulator's dynamic behavior is comparable to a rigid mass body.

    Conclusions:

    • The TU-1000 skull simulator provides a reliable method for objective BAHA measurements.
    • This device supports quality assurance and fitting evaluation for BAHA.
    • The TU-1000 is a valuable tool for the Swedish hearing aid rehabilitation program.