Cochlear Implant Electrode Impedance Translocation Detection
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Solution Overview
Problem
Current methods for detecting electrode lead translocation during cochlear implant insertion procedures are expensive, inconvenient, and impractical, particularly as they often require imaging technologies that are not suitable for real-time use, which can lead to trauma and adverse effects on residual hearing.
Innovation Solution
A system that monitors impedance values of the electrode lead in real-time during insertion, using a subset of electrodes to detect anomalies indicative of translocation, and employs a machine learning model to generate translocation log data, allowing for immediate correction and reducing trauma without the need for expensive imaging technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If imaging technology (x-ray, fluoroscopy, CT) is used to detect electrode lead translocation, then detection accuracy is improved, but cost, convenience, and real-time capability deteriorate
Solution Approach 1:
The patent replaces imaging technology (mechanical/optical systems) with an electrical impedance-based detection system. The system uses impedance measurements taken during cochlear implantation to detect electrode lead translocation, eliminating the need for expensive, complex imaging equipment while enabling real-time monitoring during the surgical procedure.
Solution Approach 2:
The patent introduces impedance measurements as an intermediary parameter to detect translocation. Instead of directly visualizing the electrode lead position through imaging, the system uses impedance changes as an indirect indicator of translocation, providing a simpler, real-time detection method that does not require complex imaging infrastructure.
2Measurement precision
If imaging technology is used to detect electrode lead translocation, then detection accuracy is improved, but cost and practicality during insertion procedures deteriorate
Solution Approach 1:
The patent replaces complex imaging systems with a straightforward electrical impedance measurement system. This substitution dramatically reduces implementation complexity, cost, and infrastructure requirements while maintaining the ability to detect translocation events during cochlear implantation procedures.
Solution Approach 2:
The patent employs a simple, low-cost impedance measurement approach that does not require expensive, maintainable imaging equipment. The system uses basic electrical measurement capabilities already present in cochlear implant systems, eliminating the need for additional costly imaging infrastructure.
3Reliability
If imaging technology is used for translocation detection, then detection capability is improved, but trauma to intracochlear structures and residual hearing preservation deteriorate
Solution Approach 1:
The patent replaces imaging technology with an electrical measurement system that does not involve physical intervention in the cochlea. This substitution eliminates the potential for imaging-related trauma to delicate intracochlear structures and hair cells, while still providing reliable translocation detection through impedance changes.
Solution Approach 2:
The patent uses the cochlear implant system's own electrical components to detect translocation through impedance measurements. This self-service approach eliminates the need for external imaging equipment that could potentially harm the cochlea, using the implant's inherent electrical characteristics to monitor its own positioning.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables real-time detection and correction of electrode lead translocation, minimizing trauma and preserving residual hearing by providing immediate feedback and reducing reliance on costly imaging technologies.
Implementation Method 1
monitoring, during a lead insertion procedure in which an electrode lead is inserted into a cochlea of a recipient of a cochlear implant, impedance values for a subset of electrodes included in a plurality of electrodes on the electrode lead
Data Source
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AI summary
An illustrative insertion management system may be configured to monitor, during a lead insertion procedure in which an electrode lead having a plurality of electrodes is inserted into a cochlea of a recipient of a cochlear implant, impedance values for a subset of electrodes included in the plurality of electrodes, the subset of electrodes being less than a total number of the plurality of electrodes; detect, during the lead insertion procedure and based on the monitoring, an anomaly in the impedance values; and generate, during the lead insertion procedure and based on the anomaly, translocation log data indicating that a translocation event in which the electrode lead translocates from a first scala of the cochlea to a second scala of the cochlea is about to occur or has occurred during the lead insertion procedure.