How does a cochlear implant transmit sound so that a person can hear?

The cochlear implant generally consists of three parts: the implant inside the body, the hearing science, and the speech processor outside the body, the head piece. The implant, which includes a microprocessor and electrodes, is surgically implanted in the patient's ear by a surgeon to provide electrical stimulation to the auditory nerve. The speech processor is the extracorporeal part of the hearing device and correction, there are two types of body-mounted and behind-the-ear machines, mainly the microphone collects the sound according to a certain coding strategy for processing into electrical impulse signals, cutting-edge technology, for each patient to use a different strategy to debug the right parameters so that the patient can hear the best sound. The head piece is the use of coils to transmit the signal from the processor into the implant.

Sound processor

● A microphone in the headpiece captures sound from the outside environment

● Transmits the sound to the processor

● The processor converts the sound into a digital signal according to a certain coding strategy

● The signal is sent to the implant through a transmitting coil in the headpiece

● The headpiece and implant are attached to each other by magnets. The headpiece and implant are attached to the implant by a magnet

● The microprocessor converts the digital information received into an electrical stimulation current signal

● The stimulation current is transmitted to electrodes implanted in the inner ear, where different electrodes in different positions correspond to different sound spectra

● The electrodes transmit the stimulation current to auditory nerve endings located in the cochlea

● The auditory nerves collect the signal and transmit it to the brain to produce hearing

● The auditory nerves collect and convey the signal to the brain, producing hearing

● The headpiece and the implant are attached by magnets. to the brain, producing hearing

An important component of the cochlear implant is the sound processing strategy. It determines how sound is processed in the processor, how it is delivered to the implant's electrodes, and how much of the original sound information is retained or lost in the process.

Sound processing strategy, although invisible, plays a decisive role in the outcome for cochlear implant users