A novel bone conduction implant (BCI): engineering aspects and pre-clinical studies.
Artikel i vetenskaplig tidskrift, 2010

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.

Male

sound

head

Prosthesis Design

Bone conduction

Female

Aged

methods

Prosthesis Implantation

anchored hearing-aid

Humans

implanted transducer

BAHA

Aged

Hearing Aids

80 and over

Bone Conduction

Författare

Bo Håkansson

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Medicinska signaler och system

Sabine Reinfeldt

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Medicinska signaler och system

Måns Eeg-Olofsson

Göteborgs universitet

Per Östli

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Medicinska signaler och system

Hamidreza Taghavi

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Medicinska signaler och system

Johannes N Adler

Chalmers, Signaler och system

John Gabrielsson

Chalmers, Signaler och system

Stefan Stenfelt

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Medicinska signaler och system

Gösta Granström

Göteborgs universitet

International Journal of Audiology

1499-2027 (ISSN) 1708-8186 (eISSN)

Vol. 49 3 203-15

Ämneskategorier

Medicinsk laboratorie- och mätteknik

Oto-rhino-laryngologi

DOI

10.3109/14992020903264462

PubMed

20105095

Mer information

Skapat

2017-10-07