SYSTEMS AND METHODS FOR DETECTING A SCALAR TRANSLOCATION OF AN ELECTRODE LEAD WITHIN A COCHLEA OF A COCHLEAR IMPLANT PATIENT

摘要

An exemplary scalar translocation detection system detects a first evoked response occurring in response to acoustic stimulation applied to a cochlear implant patient. The system detects the first evoked response by way of an electrode configuration disposed on an electrode lead while the electrode configuration is positioned at a first location along an insertion path of the electrode lead into a cochlea of the patient. The system further detects, by way of the electrode configuration while it is positioned at a second location along the insertion path, a second evoked response occurring in response to additional acoustic stimulation applied to the patient. The system further determines an amplitude change and/or a phase change between the first and second evoked responses, and then determines whether a scalar translocation of the electrode lead from one scala of the cochlea to another has occurred based on the amplitude change and/or the phase change.