Effects of a perilymphatic fistula on the passive vibration response of the basilar membrane

Koike, Takuji; Sakamoto, Chiaki; Sakashita, Tasuku; Hayashi, Ken; Kanzaki, Sho; Ogawa, Kaoru

doi:10.1016/j.heares.2011.10.006

Cited by 27 publications

(6 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fluid structure interaction acoustic analysis of vibrating BM within the cochlea of the inner ear was performed first to confirm the actual travelling wave propagation motion in the ML membrane, as shown in Figure S1 32 . The relationship between an incoming frequency and the position at which a vibrating ML membrane exhibits maximum amplitude was found to be in good agreement with that reported in previous studies performed on the human cochlea 33 . Subsequently, the analysis model was modified for the initial prototype by changing the size and material properties.…”

Section: Fluid-structure Interaction Acoustic Analysissupporting

confidence: 90%

A Novel Frequency Selectivity Approach Based on Travelling Wave Propagation in Mechanoluminescence Basilar Membrane for Artificial Cochlea

Kim

2018

Sci Rep

View full text Add to dashboard Cite

This study presents the initial assessment for a new approach to frequency selectivity aimed at mimicking the function of the basilar membrane within the human cochlea. The term cochlea tonotopy refers to the passive frequency selectivity and a transformation from the acoustic wave into a frequency signal assisted by the hair cells in the organ of Corti. While high-frequency sound waves vibrate near the base of the cochlea (near the oval windows), low-frequency waves vibrate near the apex (at the maximum distance from the base), which suggests the existence of continuous frequency selectivity. Over the past few decades, frequency selectivity using artificial membranes has been utilized in acoustic transducers by mimicking cochlea tonotopy using cantilever-beam arrays with defined physical parameters such as length and thickness. Unlike the conventional cantilever-beam array type, the travelling wave propagation based-mechanoluminescence (ML) membrane made of ZnS:Cu- polydimethylsiloxane (ZnS:Cu-PDMS) composite that we describe here provides new frequency selectivity more similar to that demonstrated by the human membrane. Here, we explored the potential of the ML membrane to deliver new frequency selectivity by using a non-contact image sensor to measure visualized frequencies. We report that the ML basilar membrane can provide effective visualization of the distribution of strain rate associated with the position of maximal amplitude of the travelling wave.

show abstract

Section: Fluid-structure Interaction Acoustic Analysissupporting

confidence: 90%

A Novel Frequency Selectivity Approach Based on Travelling Wave Propagation in Mechanoluminescence Basilar Membrane for Artificial Cochlea

Kim

2018

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The radius r of the cochlea and the angle θ between the RM and BM were 0.5 mm and 15 degrees, respectively. The density, bulk modulus, and viscosity of the fluid were 1.034×10 3 kg/m 3 [7], 2.2×10 9 Pa [2], and 2.8×10 -3 Pa•s [7], respectively. Further, the density and Poisson's ratio of the RM and BM were respectively 1.2×10 3 kg/m 3 [7] and 0.49 [7]; and Young's modulus of the RM was 15 MPa [8].…”

Section: Methodsmentioning

confidence: 99%

“…The density, bulk modulus, and viscosity of the fluid were 1.034×10 3 kg/m 3 [7], 2.2×10 9 Pa [2], and 2.8×10 -3 Pa•s [7], respectively. Further, the density and Poisson's ratio of the RM and BM were respectively 1.2×10 3 kg/m 3 [7] and 0.49 [7]; and Young's modulus of the RM was 15 MPa [8]. FEM with 10,664 elements was applied for the analysis.…”

Section: Methodsmentioning

confidence: 99%

Study on Attenuation Characteristics of Reissner’s Membrane Mode in Cochlea

2023

J Biomed Phys Eng

View full text Add to dashboard Cite

Multiple propagation modes progress along the basilar membrane and Reissner's membrane, called basilar membrane mode (BM mode) and Reissner's membrane mode (RM mode), respectively. This study focuses on the effects of the RM mode on the hearing process and investigates the difference in the attenuation characteristics between the RM and BM modes in the vicinity of the cochlea base by using modal analysis. Results indicated that the RM mode has fewer effects on the hearing process, except otoacoustic emissions, due to its bigger attenuation constant than the BM mode in the vicinity of the cochlea base. The structural dependency of the attenuation constant of the RM mode is also investigated.

show abstract

“…The length d between RM and BM was used as a parameter, and we studied the influence of d on the dispersion relations of the cochlea. The density and bulk modulus of the ideal fluid were respectively 1.034×10 3 kg/m 3 [18] and 2.2×10 9 Pa [1]; the density and Poisson's ratio of RM and BM were respectively 1.2×10 3 kg/m 3 [18] and 0.49 [18]; and Young's modulus of RM was 15 MPa [19]. We used COMSOL Multiphysics with 662 nodes and 8838 elements.…”

Section: Modelmentioning

confidence: 99%

Dispersion Relation of Triple-chambered Cochlea

Kitamura

2021

International Journal of Biology and Biomedical Engineering

View full text Add to dashboard Cite

We investigated the dispersion relations of the triple-chambered cochlea separated by the basilar membrane and the Reissner's membrane. The slow waves can propagate on the basilar membrane (basilar membrane mode), and also on the Reissner’s membrane (Reisnner’s membrane mode). Most of the previous studies have focused on the mechanics of vibration of the basilar membrane and there are only a few studies on the wave propagation on Reissner’s membrane. In this study, we focused particularly on the Reissner's membrane mode among the many propagation modes and evanescent modes that the structure supports. We analyzed the dispersion of the Reissner’s membrane mode and the basilar membrane mode, and studied their dependency on the position along the cochlea. We also studied how the distance between the Reissner's membrane and the basilar membrane affects the dispersion relations.

show abstract

Effects of a perilymphatic fistula on the passive vibration response of the basilar membrane

Cited by 27 publications

References 39 publications

A Novel Frequency Selectivity Approach Based on Travelling Wave Propagation in Mechanoluminescence Basilar Membrane for Artificial Cochlea

A Novel Frequency Selectivity Approach Based on Travelling Wave Propagation in Mechanoluminescence Basilar Membrane for Artificial Cochlea

Study on Attenuation Characteristics of Reissner’s Membrane Mode in Cochlea

Dispersion Relation of Triple-chambered Cochlea

Contact Info

Product

Resources

About