FOCUSING SYSTEMS AND METHODS FOR USE IN A COCHLEAR IMPLANT SYSTEM

摘要

An exemplary sound processor (104) may 1) identify a stimulation site within a cochlea of a patient that is to be stimulated in order to represent an audio signal presented to the patient, 2) dynamically designate, based on the identified stimulation site, a first group of one or more electrodes as a group of one or more main electrodes and a second group of one or more electrodes as a group of one or more compensating electrodes and 3) dynamically determine, based on the identified stimulation site, an amount of main current to be applied to each electrode included in the first group of one or more electrodes in order to represent the audio signal and an amount of compensating current to be applied to each electrode included in the second group of one or more electrodes to focus an excitation field created by the main current.

主权项

1. A system comprising:
a processing facility that identifies a stimulation site within a cochlea of a patient that is to be stimulated in order to represent an audio signal presented to the patient, the stimulation site included within a plurality of stimulation sites associated with a stimulation channel corresponding to a plurality of electrodes; and a stimulation management facility communicatively coupled to the processing facility and that
dynamically designates, based on the identified stimulation site, a first group of one or more electrodes included in the plurality of electrodes as a group of one or more main electrodes and a second group of one or more electrodes included in the plurality of electrodes as a group of one or more compensating electrodes, anddynamically determines, based on the identified stimulation site, an amount of main current to be applied to each electrode included in the first group of one or more electrodes in order to represent the audio signal and an amount of compensating current to be applied to each electrode included in the second group of one or more electrodes to focus an excitation field created by the main current, the compensating current opposite in polarity compared to the main current.