WordNet

able to perceive sound
an opportunity to state your case and be heard; "they condemned him without a hearing"; "he saw that he had lost his audience" (同)audience
(law) a proceeding (usually by a court) where evidence is taken for the purpose of determining an issue of fact and reaching a decision based on that evidence
the ability to hear; the auditory faculty; "his hearing was impaired" (同)audition, auditory sense, sense of hearing, auditory modality
a session (of a committee or grand jury) in which witnesses are called and testimony is taken; "the investigative committee will hold hearings in Chicago"
the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose; "he gave me an assist with the housework"; "could not walk without assistance"; "rescue party went to their aid"; "offered his help in unloading" (同)assist, assistance, help
a resource; "visual aids in teaching" (同)assistance, help
money to support a worthy person or cause (同)economic aid, financial aid

PrepTutorEJDIC

〈U〉『聴力』,聴覚〈U〉〈C〉(…を)『聞くこと』,(…の)聞き取り《+『of』+『名』》・〈C〉聞いてもらう機会,聞いてやること・聴取・聴聞会〈C〉(法廷などでの)尋問,審問,;(刑罰の減免を求める)釈明,意見陳述 / 〈U〉聞こえる距離(範囲)
…'を'『助ける』,援助する / 〈U〉『助力』,援助;(医者などの)手当て / 〈C〉(…の)助けとなるもの,援助者;助手(assistant)《+『to』+『名』》
artificial insemination by donor 非配偶者間人工受精

UpToDate Contents

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1. 成人における聴覚の音声の増幅 hearing amplification in adults
2. 小児における聴覚障害：治療 hearing impairment in children treatment
3. 老人性難聴 presbycusis
4. 小児における滲出性（漿液性）中耳炎：マネージメント otitis media with effusion serous otitis media in children management
5. 成人における難聴の評価 evaluation of hearing loss in adults

English Journal

A novel mechanism of cochlear excitation during simultaneous stimulation and pressure relief through the round window.

Weddell TD, Yarin YM, Drexl M, Russell IJ, Elliott SJ, Lukashkin AN.Author information School of Pharmacy and Biomolecular Sciences, University of Brighton, , Brighton BN2 4GJ, UK.AbstractThe round window (RW) membrane provides pressure relief when the cochlea is excited by sound. Here, we report measurements of cochlear function from guinea pigs when the cochlea was stimulated at acoustic frequencies by movements of a miniature magnet which partially occluded the RW. Maximum cochlear sensitivity, corresponding to subnanometre magnet displacements at neural thresholds, was observed for frequencies around 20 kHz, which is similar to that for acoustic stimulation. Neural response latencies to acoustic and RW stimulation were similar and taken to indicate that both means of stimulation resulted in the generation of conventional travelling waves along the cochlear partition. It was concluded that the relatively high impedance of the ossicles, as seen from the cochlea, enabled the region of the RW not occluded by the magnet, to act as a pressure shunt during RW stimulation. We propose that travelling waves, similar to those owing to acoustic far-field pressure changes, are driven by a jet-like, near-field component of a complex pressure field, which is generated by the magnetically vibrated RW. Outcomes of research described here are theoretical and practical design principles for the development of new types of hearing aids, which use near-field, RW excitation of the cochlea.
Journal of the Royal Society, Interface / the Royal Society.J R Soc Interface.2014 Feb 5;11(93):20131120. doi: 10.1098/rsif.2013.1120. Print 2014.
The round window (RW) membrane provides pressure relief when the cochlea is excited by sound. Here, we report measurements of cochlear function from guinea pigs when the cochlea was stimulated at acoustic frequencies by movements of a miniature magnet which partially occluded the RW. Maximum cochlea
PMID 24501274

A 1-channel 3-band wide dynamic range compression chip for vibration transducer of implantable hearing AIDS.

Kim D, Seong K, Kim M, Cho J, Lee J.Author information Department of Electrical Engineering Graduate School, Kyungpook National University, Deagu, South Korea.AbstractIn this paper, a digital audio processing chip which uses a wide dynamic range compression (WDRC) algorithm is designed and implemented for implantable hearing aids system. The designed chip operates at a single voltage of 3.3V and drives a 16 bit parallel input and output at 32 kHz sample. The designed chip has 1-channel 3-band WDRC composed of a FIR filter bank, a level detector, and a compression part. To verify the performance of the designed chip, we measured the frequency separations of bands and compression gain control to reflect the hearing threshold level.
Bio-medical materials and engineering.Biomed Mater Eng.2014;24(1):1009-17. doi: 10.3233/BME-130898.
In this paper, a digital audio processing chip which uses a wide dynamic range compression (WDRC) algorithm is designed and implemented for implantable hearing aids system. The designed chip operates at a single voltage of 3.3V and drives a 16 bit parallel input and output at 32 kHz sample. The desi
PMID 24211991

Measurement of stapes vibration in Human temporal bones by round window stimulation using a 3-coil transducer.

Shin DH, Kim DW, Lim HG, Jung ES, Seong KW, Lee JH, Kim MN, Cho JH.Author information Graduate School of Electronics Engineering, Kyungpook National University, Sangyuk-dong, Buk-Gu, Daegu, 702-701, Republic of Korea.AbstractRound window placement of a 3-coil transducer offers a new approach for coupling an implantable hearing aid to the inner ear. The transducer exhibits high performance at low-frequencies. One remarkable feature of the 3-coil transducer is that it minimizes leakage flux. Thus, the transducer, which consists of two permanent magnets and three coils, can enhance vibrational displacement. In human temporal bones, stapes vibration was observed by laser Doppler vibrometer in response to round window stimulation using the 3-coil transducer. Coupling between the 3-coil transducer and the round window was connected by a wire-rod. The stimulation created stapes velocity when the round window stimulated. Performance evaluation was conducted by measuring stapes velocity. To verify the performance of the 3-coil transducer, stapes velocity for round window and tympanic membrane stimulation were compared, respectively. Stapes velocity by round window stimulation using the 3-coil transducer was approximately 14 dB higher than that achieved by tympanic membrane stimulation. The study shows that 3-coil transducer is suitable for implantable hearing aids.
Bio-medical materials and engineering.Biomed Mater Eng.2014;24(1):405-11. doi: 10.3233/BME-130825.
Round window placement of a 3-coil transducer offers a new approach for coupling an implantable hearing aid to the inner ear. The transducer exhibits high performance at low-frequencies. One remarkable feature of the 3-coil transducer is that it minimizes leakage flux. Thus, the transducer, which co
PMID 24211922

Japanese Journal

科学技術の進歩と聴覚医学:「人工聴覚機器の最新情報―人工中耳」

土井勝美
AUDIOLOGY JAPAN 58(3), 173-181, 2015
… 国内でも, 臨床治験を経て2013年1月より保険承認となった BAHA (Bone-Anchored Hearing Aid® ; …
NAID 130005097126

人工聴覚機器の現状

岩崎聡
耳鼻咽喉科臨床 108(5), 327-334, 2015
… Remarkable advances have been made in the field of cochlear implantation, especially the new trends of hearing and structure preservation. … Electric acoustic stimulation (EAS) is becoming a standard procedure worldwide and has improved the quality of life of patients with a ski-slope type audiogram, while Vibrant Soundbridge (VSB) and Bone Conductive Implant are also becoming available as hearing implants for the hearing-impaired population. …
NAID 130005067356

人工聴覚器医療の現状と未来

土井勝美
耳鼻咽喉科臨床 107(7), 509-519, 2014
… Summary: Middle ear implants (MEIs) such as VSB® (Vibrant soundbridge), BB® (Bonebridge), and the BAHA® osseointegrated implant for bone conduction (Bone-anchored hearing aid) are attractive and alternative treatments for patients with conductive, sensorineural, and mixed hearing loss who do not benefit from, or who choose not to wear, conventional hearing aids (HAs). …
NAID 130004827490