Finite element modelling of a hearing contact lens coupled to the middle ear
- Hearing contact lens (HCL) is a new type of hearing aid devices. One of its main components is a piezo-electric actuator (PEA). In order to evaluate and maximizethe HCL´s performance, a model of the HCL coupled to the middle ear was developed using finite element (FE)approach. To validate the model, vibrational measurements on the HCL and temporal bones were performed using a Laser-Doppler-Vibrometer (LDV). The model was validated step by step starting with HCL only. Then a silicone cap was fitted onto the HCL to provide an interface between the HCL and the tympanic membrane. The HCL was placed on the tympanic membrane and additional measurements were performed to validate the coupled model. The model was used to evaluate the sensitivity of geometrical and material parameters with respect to performance measures of the HCL. Moreover, deeper insight was gained into the feedback behavior, which causes whistling sounds, and the contact between the HCL and tympanic membrane.
Author of HS Reutlingen | Burovikhin, Dmitrii; Lauxmann, Michael |
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URN: | urn:nbn:de:bsz:rt2-opus4-35587 |
DOI: | https://doi.org/10.1515/cdbme-2021-2096 |
ISSN: | 2364-5504 |
Erschienen in: | Current directions in biomedical engineering |
Publisher: | De Gruyter |
Place of publication: | Berlin |
Document Type: | Journal article |
Language: | English |
Publication year: | 2021 |
Tag: | finite element modelling; hearing gain; hearing-aid device; piezo-electric actuator |
Volume: | 7 |
Issue: | 2 |
Page Number: | 4 |
First Page: | 379 |
Last Page: | 382 |
DDC classes: | 570 Biowissenschaften, Biologie |
Open access?: | Ja |
Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |