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植入式助听器是在传统助听器技术上发展起来的,将输出传感器部份经手术植入耳内,其余部件仍置于耳外,其优点为:①与传统助听器相比,无需接受器,通过直接驱动听小骨,提高声音的真实感;②植入式助听器将输出传感器植入耳内,可保持耳道开放状态,能提高下坡型感音神经性耳聋患者的语言分辨率;③不会产生听觉反馈现象。所植入的部件应无刺激性,能长期耐用。手术植入的过程应简单易行,无大的并发症。电磁植入式助听器的原理是:声音进入放大器麦克风后由线圈所产生的电磁场,作用于连接槌、砧、镫骨的磁铁,由此产生声音。纠正传导性耳聋时可将磁铁和重建中耳的人工听
Implanted hearing aids are developed in the traditional hearing aid technology, the output sensor is partially implanted ear surgery, the remaining components are still placed outside the ears, its advantages are: ① compared with the traditional hearing aids, without the need for receptors, by Directly drive the ossicles to improve the realism of the sound; implantable hearing aids implant the output sensor in the ear to keep the ear canal open, which can improve the speech resolution of downhill sensorineural deafness; Produce auditory feedback phenomenon. Implanted parts should be non-irritating, long-term durability. Surgical implantation should be easy and without major complications. The principle of the electromagnetic implantable hearing aid is that the electromagnetic field generated by the coil after the sound enters the microphone of the amplifier acts on the magnet connecting the hammer, the anvil and the stapes, thereby generating sound. Corrective conductive deafness can be artificial magnets and reconstruction of the middle ear