Oliveira R J
Hearing Components, Inc., Oakdale, Minnesota 55128, USA.
J Am Acad Audiol. 1997 Dec;8(6):401-10.
In the past, the human earcanal has primarily been thought of as a passive conduit for sound. Several studies, reported here, explored evidence of how active the earcanal is. The "active earcanal" is conceptualized and aspects of it are viewed through three timeframes: jaw-induced canal change in seconds/minutes, cerumen production in weeks/months, and aging in years. The influence of each of these aspects on hearing aid performance and resulting patient satisfaction is explored. A new self-assessment tool, a Profile of Hearing Aid Physical Fit, is proposed that focuses on measuring patients' perceptions of those benefits that depend on the interface between earcanal and hearing aid.
过去，人们主要认为人类耳道是声音的被动传导通道。本文报道的几项研究探讨了耳道有多活跃的证据。“主动耳道”的概念已形成，并且从三个时间框架来审视其各个方面：以秒/分钟计的下颌诱导耳道变化、以周/月计的耵聍产生以及以年计的衰老。探讨了这些方面中的每一个对助听器性能以及患者满意度的影响。还提出了一种新的自我评估工具——助听器佩戴舒适度概况，该工具侧重于衡量患者对那些取决于耳道与助听器之间界面的益处的认知。
