cochlear implant

Cochlear implant system (also known as cochlear implant system), also known as artificial cochlea, electronic cochlea. Cochlear implants are an electronic device that replaces human ear function. It can help adults and children with severe, very severe deafness recover or provide a sense of hearing. The patients with severe and severe deafness here are those whose binaural hearing threshold is greater than 90 decibels (dBHL) and are not effective with high-power hearing aids. Cochlear implant technology began in the 1950s. After decades of development, especially with the advent of high-tech such as biomedical engineering, it has entered clinical application from experimental research, and has become the only effective treatment for hearing loss in patients with sputum. According to statistics, there are now more than 50,000 deaf patients worldwide who use cochlear implants. Treatment of diseases: congenital deafness and deafness Indication Sensorineural hearing loss cochlear implant for: 1. The sensory hearing of the binaural or hearing threshold above 90dB. 2. After the language, adult patients or children before and after the age of 1 and 5 years old. 3. The microsonic potential of the cochlea disappears and there is no congenital malformation of the inner ear. 4, emotional stability, normal intelligence, can cooperate with post-linguistic training. 5. The general health is good. Contraindications 1. Neurological spasm caused by post-cochlear lesions, such as postoperative neuroma. 2. Deafness with negative electrical stimulation test. 3. Those with a history of mental illness. 4. There are infectious lesions in the middle ear. 5, wearing a high-power hearing aid can hear the sound. 6, the nose, pharynx have obvious infectious lesions. Preoperative preparation 1. First, the patient should be made aware of the role of the operation and postoperative auditory condition. He is willing to accept the operation rather than reluctantly, and explain the problem to his family, especially the difficulty of postoperative language training, so as to get the patient and family full. Cooperate. 2. Carefully inspect the implant device, including its sealing performance. 3, detailed preoperative examination, including liver and kidney function, heart, lung condition, etc., specialist examination including sacral X-ray, CT scan, MRI, vestibular function test, drumstick electrical stimulation test, complete audiology examination and nose, Physical examination of the pharynx and ear. 4, surgery ear preparation, shaved hair, or shaving the side of the hair, antibiotics in advance. 5. The operative side of the external auditory canal was given 3% boric acid ethanol 3 d before surgery. 6. Prepare and use drugs according to general anesthesia requirements.