タイトル（掲載誌）Journal of Rehabilitation Research and Development
一般注記type:Thesis
A hearing aid using cartilage conduction (CC) has been proposed as an alternative to bone conduction (BC) hearing aids. The transducer developed for this application is lightweight, requires a much smaller fixation force than a BC hearing aid, and is more convenient to use. CC can be of great benefit to patients with fibrotic aural atresia. Fibrotic tissue connected to the ossicles provides an additional pathway (termed fibrotic tissue pathway) for sound to reach the cochlea by means of CC. To address the function of fibrotic tissue pathway, BC and CC thresholds were measured in six ears with fibrotic aural atresia. The relationship between the CC thresholds and the results of computed tomography was investigated. In the ears with the presence of a fibrotic tissue pathway, the CC thresholds were lower than the BC thresholds at 0.5 and 1.0 kHz. At 2.0 kHz, no significant difference was observed between the BC and CC thresholds. The current findings suggest that sound in the low to middle frequency range is transmitted more efficiently by CC via a fibrotic tissue pathway than BC. The development of hearing devices using CC can contribute to rehabilitation, particularly in patients with fibrotic aural atresia.
博士（医学）・甲621号・平成26年3月17日
identifier:Journal of Rehabilitation Research and Development Vol.51 No.2 p.325-332
identifier:07487711
identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/2706
identifier:Journal of Rehabilitation Research and Development, 51(2): 325-332
DOIinfo:doi/10.1682/JRRD.2013.05.0128
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