SINGLE CHANNEL COCHLEAR IMPLANT ARTIFACT ATTENUATION IN LATE AUDITORY EVOKED POTENTIALS

摘要

Disclosed herein are embodiments of methods and systems for attenuating artifacts in single channel cochlear implants. Both high and low frequency artifacts can be attenuating using embodiments of the disclosed methods and systems. In some embodiments, low-pass filters, impedance balancing, and DC artifact estimation can be used, alone or in combination, to attenuate or completely remove artifacts in single channel cochlear implants.

主权项

1. A single channel artifact cancelation method, the method comprising:
recording a single channel neural response signal from a patient using at least one electrode, wherein the neural response signal comprises at least one high frequency artifact, at least one low frequency artifact, and an attenuated neural response signal; attenuating the high frequency artifact by passing the recorded signal through a low-pass filter; and attenuating the low frequency artifact by balancing impedance in the at least one electrode; wherein, if the low frequency artifact remains after balancing impedance in the at least one electrode, further attenuating the low frequency artifact by estimating the low frequency artifact and subtracting the estimate from the recorded signal; and wherein the attenuated neural response signal is obtained after the attenuations.