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Apport du traitement du signal dans l'implant vibrant soundbridge / Christian Renard in Cahiers de l'audition, Vol. 15, n°2 (Mars/avril 2002)
Titre : Apport du traitement du signal dans l'implant vibrant soundbridge Type de document : Article Auteurs : Christian Renard Année de publication : 2002 Langues : Français (fre) Descripteurs : HE Vinci
Implant d'oreille moyenne ; Traitement du signal sonore
Autres descripteurs
Vibrant soundbridgeDisponible en ligne : Non Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=219953
in Cahiers de l'audition > Vol. 15, n°2 (Mars/avril 2002)[article]Exemplaires (1)
Cote Support Localisation Section Disponibilité Cahiers de l'audition. Vol. 15, n°2 (Mars/avril 2002) Périodique papier Ixelles Rez Consultation sur place uniquement
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Cote Support Localisation Section Disponibilité Ear and hearing. Vol.29, n° 2 (Avril 2008) Périodique papier Ixelles Rez Consultation sur place uniquement
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Titre : Comparison between incus short process and long process coupling of the vibrant soundbridge in human temporal bones Type de document : Article Auteurs : Lukas Graf, Auteur ; Jonas Lochner, Auteur ; Hamidreza Mojallal, Auteur ; Andreas Arnold, Auteur ; Flurin Honegger, Auteur ; Christof Stieger, Auteur Année de publication : 2023 Article en page(s) : p. 192-198 Note générale : https://doi.org/10.1080/14992027.2022.2031317 Langues : Anglais (eng) Descripteurs : HE Vinci
Aides auditives ; Implant d'oreille moyenne ; Os temporal ; Prothèse ossiculaire
Autres descripteurs
Vibrant soundbridgeRésumé : 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 [...] Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=309777
in International Journal of Audiology IJA > Vol. 62, no. 2 (Février 2023) . - p. 192-198[article]
Titre : L' implant d'oreille moyenne : vibrant soundbridge (symphonix) : principes Type de document : Article Auteurs : Michel Beliaeff Année de publication : 2002 Descripteurs : Autres descripteurs
Vibrant soundbridge
HE Vinci
Implant d'oreille moyenneDisponible en ligne : Non Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=219950
in Cahiers de l'audition > Vol. 15, n°2 (Mars/avril 2002)[article]Exemplaires (1)
Cote Support Localisation Section Disponibilité Cahiers de l'audition. Vol. 15, n°2 (Mars/avril 2002) Périodique papier Ixelles Rez Consultation sur place uniquement
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Titre : Influence of the Coupling on the Hearing Outcome After Implantation of an Active Middle Ear Implant: Comparison of the Transmission Behavior in Temporal Bone Experiments With Clinical Data Type de document : Article Auteurs : Christoph Muller ; Susen Lailach ; Matthias Bornitz ; Nikoloz Lasurashvili ; Till Moritz Essinger ; Marcus Neudert ; Thomas Zahnert Année de publication : 2023 Article en page(s) : p.135-145 Note générale : DOI: 10.1097/AUD.0000000000001258 Langues : Anglais (eng) Descripteurs : Autres descripteurs
Vibrant soundbridge
HE Vinci
Analyse de données ; Implant d'oreille moyenne ; Intelligibilité de la parole ; TransducteursRésumé : Objectives: The active middle ear implant, Vibrant Soundbridge (VSB), can be implanted with a variety of couplers. Hearing outcome after implantation has been investigated in both temporal bone (TB) experiments and patient studies, but the relationship between experimental and clinical data is still weak in the literature. Therefore, experimental data from TB experiments should be compared with patient data in a retrospective study, in which the floating mass transducer is used with couplers of the third generation. Actuator coupling structures included the long (LP coupler) and short (SP coupler) incus process, the stapes head (Clip coupler), and the round window membrane (RW soft coupler).
Methods: In the TB experiments, the sound transmission after vibroplasty on the above-mentioned actuator coupling structures was determined in 32 specimens by means of laser Doppler vibrometry on the stapes footplate. Data of 69 patients were analyzed. The main target audiometric parameters were the postoperative aided word recognition score (WRS) in the free field at 65 dB SPL (WRS 65 dB in %), the preoperative and postoperative pure-tone average (PTA4, including the frequencies 0.5, 1, 2, and 4 kHz) of the bone conduction hearing threshold (PTA4BC), the aided postoperative air conduction hearing threshold in the free field (PTA4FF) and the direct threshold (Vibrogram) at least 6 months postoperatively. The coupling efficiency of the actuator (Vibrogram-PTA4BC) as well as the effective hearing gain (PTA4FF-PTA4BC) was compared between the couplers.
Results: The analysis in the main speech range (0.5-4 kHz) indicated that in the TB experiments, the LP coupler tends to have the best coupling quality at low frequencies (500-1000 Hz). This was up to 15 dB above the worst actuator (RW soft coupler). However, the results missed the significance level (p > 0.05). In the high frequencies (2000-4000 Hz), the Clip coupler showed the best coupling quality. This was 15 dB above the worst actuator (SP coupler). However, the results missed the significance level (p > 0.05), too. The postoperative WRS at 65 dB SPL and the postoperative PTA4FF were independent of the actuator coupling structure. The PTA4BC was stable at 6 months postoperatively. For the PTA4 of the coupling efficiency, there were no significant differences between the actuator coupling structures (LP 8.9 dB +/- 12.9; SP 9.5 +/- 6.5 dB; Clip 5.2 +/- 10.5 dB; RW 12.7 +/- 11.0 dB). However, the tendential inferiority of the RW soft coupler with regard to transmission in the low-frequency range and the tendential superiority of the Clip coupler in the high-frequency range that have already been displayed experimentally could be confirmed in the clinical results. However, the clinical results missed the significance level, too (p > 0.05).
Conclusions: In vivo, there are no significant differences in the postoperative outcome stratified according to coupling the target structure. The differences known from the experimental setting were repressed by individual biasing factors. However, to ensure sufficient postoperative speech intelligibility, the frequency-specific transmission behavior of the couplers should be taken into account when setting the indication for VSB implantation.Disponible en ligne : Oui En ligne : https://login.ezproxy.vinci.be/login?url=https://ovidsp.ovid.com/ovidweb.cgi?T=J [...] Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=301806
in Ear and hearing > Vol. 44, n°1 (Janvier-Février 2023) . - p.135-145[article]
