US 11,918,411 B2
Intraoperative detection of electrode lead misplacement during a lead insertion procedure
Kanthaiah Koka, Valencia, CA (US); and Leonid M. Litvak, Los Angeles, CA (US)
Assigned to Advanced Bionics AG, Staefa (CH)
Filed by Advanced Bionics AG, Staefa (CH)
Filed on Nov. 4, 2020, as Appl. No. 17/089,535.
Claims priority of provisional application 62/931,706, filed on Nov. 6, 2019.
Prior Publication US 2021/0128104 A1, May 6, 2021
Int. Cl. A61B 8/08 (2006.01); A61B 5/00 (2006.01); A61B 5/24 (2021.01)
CPC A61B 8/0841 (2013.01) [A61B 5/24 (2021.01); A61B 5/743 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system comprising:
a memory storing instructions;
a processor communicatively coupled to the memory and configured to execute the instructions to:
direct an acoustic stimulation generator to apply acoustic stimulation to a recipient of a cochlear implant during an insertion procedure in which an electrode lead coupled to the cochlear implant is configured to be inserted into a cochlea of the recipient;
direct the cochlear implant to use an electrode on the electrode lead to record an evoked response signal that occurs within the recipient in response to the acoustic stimulation;
detect an anomaly in the evoked response signal, the detecting the anomaly comprising detecting a plurality of local maximums of an amplitude of the evoked response signal that each occur within a threshold insertion time associated with the insertion procedure, the plurality of local maximums indicative of the electrode lead being inserted into a vestibular canal instead of into the cochlea; and
determine, based on the detection of the plurality of local maximums of the amplitude of the evoked response signal, that the electrode lead is being inserted into the vestibular canal instead of into the cochlea.