| Titre : | Comparison between incus short process and long process coupling of the vibrant soundbridge in human temporal bones (2023) |
| Auteurs : | Lukas Graf, Auteur ; Jonas Lochner, Auteur ; Hamidreza Mojallal, Auteur ; Andreas Arnold, Auteur ; Flurin Honegger, Auteur ; Christof Stieger, Auteur |
| Type de document : | Article |
| Dans : | International Journal of Audiology IJA (Vol. 62, no. 2, Février 2023) |
| Article en page(s) : | p. 192-198 |
| Note générale : | https://doi.org/10.1080/14992027.2022.2031317 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Aides auditives ; Implant d'oreille moyenne ; Os temporal ; Prothèse ossiculaireAutres descripteurs Vibrant soundbridge |
| Résumé : |
Objective
The Vibrant Soundbridge (VSB) is one of the most widely used implantable hearing devices. It consists of a vibrating floating mass transducer (FMT) that is connected to a middle ear structure. The standard coupling devices for sensorineural hearing loss are short process (SP) or long process (LP) couplers. Design and study sample This study directly compared the electro-mechanical performance of the SP- and LP-coupled FMT of the VSB in the same temporal bone specimen (n = 10). We measured velocity magnitudes and total harmonic distortions (THD) of the stapes (ST) and the round window (RW) using laser Doppler Vibrometry (LDV). Results Comparison shows a maximally 10 dB higher magnitude for the LP coupler at ST and RW for frequencies below 600 Hz, whereas the SP coupler shows a maximally 20 dB higher magnitude at the ST and RW for frequencies above 600 Hz. THD show similar behaviour with less distortion at 500 Hz for the LP coupler and less distortions for the SP coupler in higher frequencies. Conclusions Our experiments showed that the SP coupling may be mechanically favourable, in terms of magnitude and distortion, for the transmission of FMT vibrations at higher frequencies. |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.tandfonline.com/doi/full/10.1080/14992027.2022.2031317 |
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