Many careful parents will notice why some children with good ears cannot hear. These children don’t need to have their ears reconstructed or their ear canals opened, but they still wear a small machine on their head and behind their ears at an early age. Some parents know that this is a cochlear implant and ask, “Can we get a cochlear implant?” They ask, “Can we get a cochlear implant? The frequent answer is that the vast majority of children with small ears have good cochlear implants. So what kind of child needs a cochlear implant? The process is what we often refer to as air conduction, or air conduction. In this transmission process, the inner ear, the structure that contains the cochlea. The vestibular window, the internal and external lymphatic fluid, and the spiral apparatus (Corti’s apparatus) are all structures within the cochlea. Within the cochlea, sound is converted from mechanical vibrations to electrophysiological signals, which are then transmitted along the auditory nerve to the auditory center of the brain. Thus, a person hears sound. So, under what circumstances does a person not hear sound and need a cochlear implant? Here is a quick overview of what a cochlear implant is and which patients need one. What is a cochlear implant? Cochlear Implant / Cochlear Implant Cochlear Implant is an electronic device, which is used by the speech processor outside the body to convert the sound into a certain coded form of electrical signals, and through the electrode system implanted in the body to directly stimulate the auditory nerves to restore or re-establish the hearing function of the deaf person. Is it possible to use cochlear implant? Indications for cochlear implant 1. Pre-lingual deaf patients As the name suggests, hearing impaired patients before learning to speak. (1) Failed hearing screening in both ears, and the result of hearing test is bilateral or unilateral severe or very severe sensorineural deafness. For example, large vestibular aqueduct syndrome, cochlear developmental malformation. (2) Hearing loss of unknown etiology, congenital, hereditary, pharmacological, post meningitis, heavy metal poisoning, with lesions localized in the cochlea. (3) Auditory neuropathy patients with lesions located in the cochlea. (4) No significant improvement in hearing after fitting hearing aids. (5) No cochlear lesion. Patients with post-language deafness Hearing loss due to certain reasons, and hearing impaired patients with a certain language base. (1) Bilateral or unilateral severe or very severe sensorineural deafness, with hearing loss in the range of 1KHz and higher frequencies exceeding 80dB HL. (2) Different expectations at different ages after cochlear implantation. (3) The time of cochlear implant surgery should not be too long in relation to the time interval of the onset of deafness. (4) The hearing aid effect is not obvious after the optional hearing aid. (5) No post-cochlear lesions. Contraindications to cochlear implantation Contraindications 1, cochlear defects; 2, cochlear nerve defects; 3, severe mental illness. Against the above indications and contraindications, we can have a clear idea of whether we can do cochlear implant. In principle, cochlear implants are basically “once implanted, lifelong benefits”. Therefore, many parents ask whether we need to change the cochlear implant every few years after we have done the cochlear implant. Well, generally speaking, no.