Journal article
Development and Characterization of an Electrocochleography-Guided Robotics-Assisted Cochlear Implant Array Insertion System
Otolaryngology-head and neck surgery, Vol.167(2), pp.334-340
10/05/2021
DOI: 10.1177/01945998211049210
PMCID: PMC9969559
PMID: 34609909
Abstract
Objective Electrocochleography (ECochG) is increasingly being used during cochlear implant (CI) surgery to detect and mitigate insertion-related intracochlear trauma, where a drop in ECochG signal has been shown to correlate with a decline in hearing outcomes. In this study, an ECochG-guided robotics-assisted CI insertion system was developed and characterized that provides controlled and consistent electrode array insertions while monitoring and adapting to real-time ECochG signals. Study Design Experimental research. Setting A research laboratory and animal testing facility. Methods A proof-of-concept benchtop study evaluated the ability of the system to detect simulated ECochG signal changes and robotically adapt the insertion. Additionally, the ECochG-guided insertion system was evaluated in a pilot in vivo sheep study to characterize the signal-to-noise ratio and amplitude of ECochG recordings during robotics-assisted insertions. The system comprises an electrode array insertion drive unit, an extracochlear recording electrode module, and a control console that interfaces with both components and the surgeon. Results The system exhibited a microvolt signal resolution and a response time <100 milliseconds after signal change detection, indicating that the system can detect changes and respond faster than a human. Additionally, animal results demonstrated that the system was capable of recording ECochG signals with a high signal-to-noise ratio and sufficient amplitude. Conclusion An ECochG-guided robotics-assisted CI insertion system can detect real-time drops in ECochG signals during electrode array insertions and immediately alter the insertion motion. The system may provide a surgeon the means to monitor and reduce CI insertion-related trauma beyond manual insertion techniques for improved CI hearing outcomes.
Details
- Title: Subtitle
- Development and Characterization of an Electrocochleography-Guided Robotics-Assisted Cochlear Implant Array Insertion System
- Creators
- Allan M. Henslee - iotaMotion, Inc, Iowa City, Iowa, USA.Christopher R. Kaufmann - iotaMotion, Inc, Iowa City, Iowa, USA.Matt D. Andrick - iotaMotion, Inc, Iowa City, Iowa, USA.Parker T. Reineke - iotaMotion, Inc, Iowa City, Iowa, USA.Viral D. Tejani - University of IowaMarlan R. Hansen - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Otolaryngology-head and neck surgery, Vol.167(2), pp.334-340
- DOI
- 10.1177/01945998211049210
- PMID
- 34609909
- PMCID
- PMC9969559
- NLM abbreviation
- Otolaryngol Head Neck Surg
- ISSN
- 0194-5998
- eISSN
- 1097-6817
- Publisher
- Sage
- Number of pages
- 7
- Grant note
- National Institute on Deafness and Other Communication Disorders, National Institutes of Health; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Deafness & Other Communication Disorders (NIDCD) FAIN R43DC017640 / Small Business Innovation Research Phase I
- Language
- English
- Date published
- 10/05/2021
- Academic Unit
- Molecular Physiology and Biophysics; Neurosurgery; Otolaryngology
- Record Identifier
- 9984297511302771
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