FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023397342> ?p ?o ?g. }

• W2023397342 endingPage "251" @default.
• W2023397342 startingPage "251" @default.
• W2023397342 abstract "The Direct Acoustic Cochlea Stimulator Partial Implant (DACS PI, Phonak Acoustic Implants SA, Switzerland) is intended to stimulate the cochlea by a conventional stapedotomy piston that is crimped onto the DACS PI artificial incus. An alternative approach to the round window (RW) is successfully done with other devices, having the advantage of being also independent of the existence of middle ear structure (e.g. ossicles). Here the possibility of stimulating the RW with the DACS actuator is investigated including the impact of static force on sound transmission to the cochlea.The maximum equivalent sound pressure output with RW stimulation was determined experimentally in fresh human temporal bones. Experiments were performed in analogy to the ASTM standard (F2504.24930-1) method for the output determination of implantable middle ear hearing devices (IMEHDs) in human cadaveric temporal bones (TBs). ASTM compliant temporal bones were stimulated with a prosthesis having a spherical tip (∅0.5 mm) attached to the actuator. The stimulation was performed perpendicular to the round window membrane (RWM) at varying position relative to the RW and the resulting static force on the RW membrane was determined.At each position the displacement output of the DACS PI actuator and the stapes footplate (SFP) vibration in response to actuator stimulation was measured with a Laser Doppler Velocimeter (LDV). By comparison of the achieved output at the stapes footplate in response to sound and transducer stimulation the equivalent sound pressure level at the tympanic membrane at 1Vrms input voltage was calculated assuming that the SFP displacement in both conditions is a measure of perceived loudness, as it is done in the ASTM standard.Ten TB preparations within the acceptance range of the ASTM standard were used for analysis. The actuator driven stapes footplate displacement amplitude as well as the resulting equivalent sound pressure level was highly dependent on the static force applied to the RW. The sound transfer efficiency from the RW to the stapes footplate increased monotonically with increasing static load. At a moderate static force load (approx. 3.9 mN) the obtained average sound equivalent sound pressure level was 102–120 eq. dB SPL @ nominally 1Vrms input for frequencies ≤4 kHz. At higher frequencies (6–10 kHz) the achieved output dropped to ∼90 dB SPL.This output was obtained at loading conditions compatible with the actuator safe operating range, although it was possible to increase the output further by increasing the static force load.Our results demonstrate for a first time that static force applied to the RW is crucial for sound transmission efficiency. Further we could show that RW stimulation with the DACS PI actuator is possible having a maximum output that is sufficient to treat moderate and pronounced sensorineural hearing losses (SNHL).This article is part of a Special Issue entitled “MEMRO 2012”." @default.
• W2023397342 created "2016-06-24" @default.
• W2023397342 creator A5003635103 @default.
• W2023397342 creator A5019575749 @default.
• W2023397342 creator A5022468115 @default.
• W2023397342 creator A5046486768 @default.
• W2023397342 creator A5047104633 @default.
• W2023397342 date "2010-05-01" @default.
• W2023397342 modified "2023-09-25" @default.
• W2023397342 title "Feasibility study of round window stimulation with the MET-V implantable middle ear device: A temporal bone study" @default.
• W2023397342 doi "https://doi.org/10.1016/j.heares.2010.03.070" @default.
• W2023397342 hasPublicationYear "2010" @default.
• W2023397342 type Work @default.
• W2023397342 sameAs 2023397342 @default.
• W2023397342 citedByCount "0" @default.
• W2023397342 crossrefType "journal-article" @default.
• W2023397342 hasAuthorship W2023397342A5003635103 @default.
• W2023397342 hasAuthorship W2023397342A5019575749 @default.
• W2023397342 hasAuthorship W2023397342A5022468115 @default.
• W2023397342 hasAuthorship W2023397342A5046486768 @default.
• W2023397342 hasAuthorship W2023397342A5047104633 @default.
• W2023397342 hasConcept C105702510 @default.
• W2023397342 hasConcept C107551265 @default.
• W2023397342 hasConcept C119599485 @default.
• W2023397342 hasConcept C121332964 @default.
• W2023397342 hasConcept C127413603 @default.
• W2023397342 hasConcept C136229726 @default.
• W2023397342 hasConcept C150011116 @default.
• W2023397342 hasConcept C15744967 @default.
• W2023397342 hasConcept C172707124 @default.
• W2023397342 hasConcept C192562407 @default.
• W2023397342 hasConcept C24890656 @default.
• W2023397342 hasConcept C2777180064 @default.
• W2023397342 hasConcept C2777846895 @default.
• W2023397342 hasConcept C2778260499 @default.
• W2023397342 hasConcept C2778514029 @default.
• W2023397342 hasConcept C2779365249 @default.
• W2023397342 hasConcept C2780130748 @default.
• W2023397342 hasConcept C2780757810 @default.
• W2023397342 hasConcept C49040817 @default.
• W2023397342 hasConcept C542102704 @default.
• W2023397342 hasConcept C6260449 @default.
• W2023397342 hasConcept C68115822 @default.
• W2023397342 hasConcept C71924100 @default.
• W2023397342 hasConcept C927094 @default.
• W2023397342 hasConcept C96199931 @default.
• W2023397342 hasConcept C97355855 @default.
• W2023397342 hasConceptScore W2023397342C105702510 @default.
• W2023397342 hasConceptScore W2023397342C107551265 @default.
• W2023397342 hasConceptScore W2023397342C119599485 @default.
• W2023397342 hasConceptScore W2023397342C121332964 @default.
• W2023397342 hasConceptScore W2023397342C127413603 @default.
• W2023397342 hasConceptScore W2023397342C136229726 @default.
• W2023397342 hasConceptScore W2023397342C150011116 @default.
• W2023397342 hasConceptScore W2023397342C15744967 @default.
• W2023397342 hasConceptScore W2023397342C172707124 @default.
• W2023397342 hasConceptScore W2023397342C192562407 @default.
• W2023397342 hasConceptScore W2023397342C24890656 @default.
• W2023397342 hasConceptScore W2023397342C2777180064 @default.
• W2023397342 hasConceptScore W2023397342C2777846895 @default.
• W2023397342 hasConceptScore W2023397342C2778260499 @default.
• W2023397342 hasConceptScore W2023397342C2778514029 @default.
• W2023397342 hasConceptScore W2023397342C2779365249 @default.
• W2023397342 hasConceptScore W2023397342C2780130748 @default.
• W2023397342 hasConceptScore W2023397342C2780757810 @default.
• W2023397342 hasConceptScore W2023397342C49040817 @default.
• W2023397342 hasConceptScore W2023397342C542102704 @default.
• W2023397342 hasConceptScore W2023397342C6260449 @default.
• W2023397342 hasConceptScore W2023397342C68115822 @default.
• W2023397342 hasConceptScore W2023397342C71924100 @default.
• W2023397342 hasConceptScore W2023397342C927094 @default.
• W2023397342 hasConceptScore W2023397342C96199931 @default.
• W2023397342 hasConceptScore W2023397342C97355855 @default.
• W2023397342 hasIssue "1-2" @default.
• W2023397342 hasLocation W20233973421 @default.
• W2023397342 hasOpenAccess W2023397342 @default.
• W2023397342 hasPrimaryLocation W20233973421 @default.
• W2023397342 hasRelatedWork W1936713698 @default.
• W2023397342 hasRelatedWork W2013064870 @default.
• W2023397342 hasRelatedWork W2015372014 @default.
• W2023397342 hasRelatedWork W2077220052 @default.
• W2023397342 hasRelatedWork W2398083269 @default.
• W2023397342 hasRelatedWork W2399023274 @default.
• W2023397342 hasRelatedWork W2623192359 @default.
• W2023397342 hasRelatedWork W2920824985 @default.
• W2023397342 hasRelatedWork W31156743 @default.
• W2023397342 hasRelatedWork W3162752527 @default.
• W2023397342 hasVolume "263" @default.
• W2023397342 isParatext "false" @default.
• W2023397342 isRetracted "false" @default.
• W2023397342 magId "2023397342" @default.
• W2023397342 workType "article" @default.