Two-way multi-channel artificial cochlea system with on-chip signal processor

Abstract

The invention relates to a bidirectional digital modulation multi-channel manual cochlear system, pertaining to the arts of electronic information technology and medical appliance. The system comprises external and internal circuits and electrodes. The external circuit is for collecting sound signal and sending to the internal circuit after enlarging, digitalizing and modulating in wireless way, at the same time, providing interface for programming and measuring the internal circuit.< The internal circuit demodulates the received signal, and deals the demodulated data by the built-in digital signal-processing unit, to control the outlet of electrode assemblies, program on line or provide reversal results. The system integrates the low-power consumption digital signal-processing unit to the internal circuit, so the external circuit only sends narrow range sound signal, to cancel the width limitation of wireless transmission band, and improve the accuracy of dealing. Moreover, the system provides with remote updating.

Description

technical field [0001] The invention relates to a two-way multi-channel cochlear artificial system with an on-chip signal processor, belonging to the fields of electronic information technology and medical equipment. Background technique [0002] In medicine, patients with a hearing threshold above 90 decibels are collectively referred to as total deafness. The cause of total deafness in most patients is the damage of hair cells rather than the functional decline of auditory nerve. A cochlear implant is a medical electronic device used to treat sensory deafness. Its function is to replace the diseased hair cells to complete the acoustic-electric conversion, and stimulate the remaining auditory nerve with electrical signals with sound information, so that the patient can produce real hearing. Feel, so as to achieve the purpose of restoring the patient's hearing. At present, the voice processor of the cochlear implant system generally adopts the frequency decomposition algor...

AI Technical Summary

Problems solved by technology

Due to the large number of electrodes and the high stimulation frequency, the amount of data transmitted is often large and requires a large amount of bandwidth (usually on the order of hundreds of KHz or even MHz), which will inevitably lead to insufficient data accuracy and energy transmission efficiency when the carrier frequency is limited. low, thereby affecting the performance of the system

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