A novel bone conduction implant (BCI): Engineering aspects and pre-clinical studies
2010 (English)In: INTERNATIONAL JOURNAL OF AUDIOLOGY, ISSN 1499-2027, Vol. 49, no 3, 203-215 p.Article in journal (Refereed) Published
Percutaneous bone anchored hearing aids (BAHA) are today an important rehabilitation alternative for patients suffering from conductive or mixed hearing loss. Despite their success they are associated with drawbacks such as skin infections, accidental or spontaneous loss of the bone implant, and patient refusal for treatment due to stigma. A novel bone conduction implant (BCI) system has been proposed as an alternative to the BAHA system because it leaves the skin intact. Such a BCI system has now been developed and the encapsulated transducer uses a non-screw attachment to a hollow recess of the lateral portion of the temporal bone. The aim of this study is to describe the basic engineering principals and some preclinical results obtained with the new BCI system. Laser Doppler vibrometer measurements on three cadaver heads show that the new BCI system produces 0-10 dB higher maximum output acceleration level at the ipsilateral promontory relative to conventional ear-level BAHA at speech frequencies. At the contralateral promontory the maximum output acceleration level was considerably lower for the BCI than for the BAHA.
Place, publisher, year, edition, pages
2010. Vol. 49, no 3, 203-215 p.
Bone conduction, BAHA, implanted transducer
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-54397DOI: 10.3109/14992020903264462ISI: 000274883800003OAI: oai:DiVA.org:liu-54397DiVA: diva2:303531
This is an electronic version of an article published in:
Bo Hakansson, Sabine Reinfeldt, Mans Eeg-Olofsson, Per Ostli, Hamidreza Taghavi, Johannes Adler, John Gabrielsson, Stefan Stenfelt and Gosta Granstrom, A novel bone conduction implant (BCI): Engineering aspects and pre-clinical studies, 2010, INTERNATIONAL JOURNAL OF AUDIOLOGY, (49), 3, 203-215.
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