Cochlear Implant Stimulation Scheduling for Gap-Based Physiological Sensing
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Solution Overview
Problem
Existing stimulation systems fail to cater to the unique preferences and characteristics of individual recipients, leading to suboptimal performance and user experience.
Innovation Solution
A system that monitors and acts on physiological conditions of recipients using sensors and processing units to customize stimulation strategies, allowing for simultaneous stimulation and condition detection without noticeable interference, optimizing power consumption and providing real-time notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous monitoring of physiological conditions is performed, then measurement precision is improved, but use of energy increases
Solution Approach 1:
The system implements periodic monitoring of physiological conditions at scheduled intervals rather than continuous monitoring. The processor determines monitoring intervals based on the specific physiological parameter being measured, balancing measurement accuracy requirements with power consumption constraints. This allows the system to achieve sufficient measurement precision while significantly reducing energy usage compared to continuous monitoring.
Solution Approach 2:
The system performs preliminary assessment of physiological conditions using less power-intensive methods, then triggers more precise measurements only when anomalies or specific conditions are detected. This preliminary screening approach allows the system to maintain high measurement precision for critical events while minimizing overall power consumption by avoiding continuous high-precision monitoring.
2Measurement precision
If stimulation gaps are introduced for condition detection, then measurement precision is improved, but productivity decreases
Solution Approach 1:
The system schedules stimulation gaps periodically at optimized intervals that allow for physiological condition detection while minimizing disruption to overall stimulation therapy. The timing and duration of these gaps are carefully controlled to achieve adequate measurement precision without significantly reducing the total stimulation delivery time and effectiveness.
Solution Approach 2:
The system dynamically adjusts the timing, duration, and frequency of stimulation gaps based on the specific physiological parameter being monitored, the recipient's response, and therapeutic goals. This dynamic optimization allows the system to maintain measurement precision while minimizing the impact on stimulation productivity and overall treatment effectiveness.
3Adaptability or versatility
If multiple sensors are added for comprehensive monitoring, then adaptability is improved, but device complexity increases
Solution Approach 1:
The system employs sensors that can monitor multiple physiological parameters simultaneously or that can be configured to detect different conditions. The processor is designed to handle various sensor inputs and adapt the monitoring strategy based on which parameters are being measured, providing comprehensive adaptability without requiring separate dedicated sensors for each physiological condition.
Solution Approach 2:
The system combines multiple sensing capabilities into integrated sensor modules or uses multi-functional sensors that can detect different physiological parameters. This merging approach increases adaptability for monitoring various conditions while avoiding the device complexity that would result from having separate independent sensor systems for each parameter.
Data Source
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Figure 3A~3B
AI summary
An illustrative system includes a stimulation device configured to apply stimulation to a recipient, a sensing device configured to detect a physiological condition of the recipient, and a processing unit communicatively coupled to the stimulation device and the sensing device. The processing unit determines a stimulation strategy that is customized to the recipient and includes stimulation frames and stimulation gaps. The processing unit then directs the stimulation device to apply the stimulation to the recipient in accordance with the stimulation strategy by applying the stimulation only during time that corresponds to the stimulation frames. The processing unit also directs the sensing device to detect the physiological condition of the recipient in accordance with the stimulation strategy by detecting only during time that corresponds to the stimulation gaps. Based on the detected physiological condition, the processing unit performs an action. Corresponding systems, methods, and apparatuses are also disclosed. The stimulation device is a cochlear implant with an electrode lead having an array of electrodes to apply the stimulation.