这种助听器传统上是最强大的,佩戴在外耳的后面。
闭合式(Closed fit):这些助听器使用适合的耳模填充外耳。虽然它们比开放式助听器大,但闭合式 BTE 更易于处理,因为它们封闭了听道,从而减少了助听器佩戴者有时会经历的啸叫声。
开放式(Open fit):这些助听器包含一根细塑料微管,延伸到外耳并进入耳道。除了体积小且外观美观外,开放式微管避免了佩戴耳内式助听器时的“堵塞”感。
所有助听器都有相同的主要组件。耳后式助听器由以下部分组成:
微型耳后式(Micro-behind-the-ear):这些助听器比普通的 BTE 型号小,适合轻度至重度听力损失的人士。它们可以舒适地佩戴在耳后,并提供多种颜色、形状和样式。
外部接收器型号(耳道接收器,或 RIC):最小的耳后式型号配备外部接收器,通常还提供无线功能。
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