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Audiol > Volume 4(1); 2008 > Article
Audiology 2008;4(1): 81-84.
Published online: June 30, 2008.
doi: http://doi.org/10.21848/audiol.2008.4.1.81
환기구가 없는 고막보청기 착용 시 외이도 내의 기압조절에 의한 폐쇄효과의 해결:사례보고
이상연
벨톤히어링
Solutions of Occlusion Effects by Air Pressure Control in External Auditory Canal for CIC without Vent:Case Study
Sang-Yeon Lee
Beltone Hearing, Seoul, Korea
Correspondence  Sang-Yeon Lee ,Tel: (02) 546-5888, Fax: (02) 546-5788, Email: syleesms@hanmail.net
Received: March 8, 2008;  Accepted: May 11, 2008.  Published online: June 30, 2008.
ABSTRACT
One of the most common complaints of hearing aid wearers was occlusion effect (OE). OE was mainly caused by increasing low frequencies gain at the ear drum and it could be reduced effectively by installing vent at the side of hearing aid shell. However, when typical venting was not possible due to the small size of ear canal, OE could be reduced by air pressure control near by ear drum especially in CIC type of hearing aids. Air pressure could be reduced by making approximately 0.6 mm hole at near the receiver tube in the hearing aid. This report was for the cases where OE were managed through air pressure control in external auditory canal.
Key Words: Occlusion effect·Vent·Completely-in-the-canal (CIC).
중심단어: 폐쇄효과· 환기구· 고막보청기.
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