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对于耳聋患者,目前已有了一些有效的药物及手术疗法,但由于这些疗法尚未臻完善,仍遗留许多耳聋患者有待于借助助听器提高听力,以解决日常生活和工作中的不便。助听器是一种精密的电子器具。它的功用除有集音、扩音效果外,有时还可起到掩蔽耳鸣的作用。老式的盒式助听器体积较大,需置于口袋内,还有连接耳塞的一根电线拖累,使用欠便,价格相对低廉;新式的耳背式、耳内式及耳道式助听器体积小巧,使用方便,价格较贵。最新颖的数字式助听器具有自动增益功能,但价格昂贵,恐非一般人的经济能力所能购置。
For deaf patients, there are currently some effective drugs and surgical treatments. However, due to the incompleteness of these therapies, many people with deafness still need to improve their hearing by means of hearing aids to solve their daily life and inconvenience in their work. Hearing aids are sophisticated electronic appliances. In addition to its function of collecting sound, amplifying effect, sometimes can also play the role of masking tinnitus. Old-fashioned box-type hearing aids are bulky and need to be placed in pockets, as well as a wire connected to an earplug that can be used less frequently and at a lower price. The new ear, back and in-ear hearing aids are compact Convenient, the price is more expensive. The most up-to-date digital hearing aids have automatic gain capabilities, but are expensive and not affordable for the average person.