US 11,745,008 B2
ECAP recording method and cochlea implant system
Behnam Molaee, Vallauris (FR); and Manuel Segovia Martinez, Vallauris (FR)
Assigned to Oticon Medical A/S, Smørum (DK)
Filed by Oticon Medical A/S, Smørum (DK)
Filed on Jun. 22, 2022, as Appl. No. 17/846,479.
Application 17/846,479 is a continuation of application No. 16/721,635, filed on Dec. 19, 2019, granted, now 11,395,913.
Prior Publication US 2022/0323747 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/36 (2006.01); A61N 1/05 (2006.01); A61N 1/02 (2006.01)
CPC A61N 1/0541 (2013.01) [A61N 1/025 (2013.01); A61N 1/36031 (2017.08)] 12 Claims
OG exemplary drawing
 
1. A method for recording cochlea response by an electrode array of a cochlea implant system, wherein the method comprising:
applying stimulations corresponding to a first primary stimulation paradigm and a first secondary stimulation paradigm, respectively, to a stimulator electrode of a plurality of electrodes of the electrode array,
recording a first primary cochlea response signal by a first recording electrode of the plurality of electrodes of the electrode array while applying the stimulation corresponding to the first primary stimulation paradigm,
recording a first secondary cochlea response signal by a second recording electrode of the plurality of electrodes of the electrode array while applying the stimulation corresponding to the first secondary stimulation paradigm, the second recording electrode being arranged further away from the stimulator electrode than the first recording electrode, such that two or more electrodes of the electrode array are arranged between the first recording electrode and the second recording electrode,
applying stimulations corresponding to a second primary stimulation paradigm and a second secondary stimulation paradigm, respectively, to the stimulator electrode,
recording a second primary cochlea response signal by the first recording electrode while applying the stimulation corresponding to the second primary stimulation paradigm,
recording a second secondary cochlea response signal by the second recording electrode while applying the stimulation corresponding to the second secondary stimulation paradigm,
determining, based on a difference between the first primary cochlea response signal and the second primary cochlea response signal, a main primary cochlea response signal,
determining, based on a difference between the first secondary cochlea response signal and the second secondary cochlea response signal, a main secondary cochlea response signal, and
determining, based on a difference between the main primary cochlea response signal and the main secondary cochlea response signal, a main electrically evoked compound action potential.