Wearable Receiver Strip Monitoring for Signal Detection Reliability
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Solution Overview
Problem
Wearable receiver assemblies for detecting ingestible event markers (IEMs) face issues with poor contact and power depletion, leading to failed signal detection, necessitating data-driven methods to monitor the condition of replaceable strip components and provide timely replacement alerts.
Innovation Solution
A computer-implemented method and device that monitor skin impedance and power source voltage of the receiver, determining thresholds and providing alerts when consecutive measurements exceed or fall below set values, ensuring effective contact and power levels for reliable signal detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the receiver assembly is used continuously to detect IEM signals, then the duration of action increases, but the skin contact quality deteriorates and power depletes leading to detection failures
Solution Approach 1:
The system performs preliminary monitoring of skin impedance and power voltage before signal detection failures occur. By continuously tracking these parameters and comparing them against threshold values, the system proactively identifies degradation trends and alerts users to replace the strip component before contact quality or power levels become insufficient for reliable IEM detection.
Solution Approach 2:
The system implements feedback mechanisms by monitoring skin impedance and power voltage in real-time, comparing measurements against predetermined thresholds, and providing alerts based on the feedback from these measurements. This closed-loop monitoring enables the system to adaptively respond to deteriorating conditions and maintain reliable operation through timely user notifications.
2Reliability
If the strip component is monitored continuously for replacement needs, then the reliability of signal detection is maintained, but the device complexity increases due to additional monitoring mechanisms
Solution Approach 1:
The monitoring system leverages existing receiver assembly components to perform multiple functions. The same electrodes used for IEM signal detection are utilized to measure skin impedance, and the existing power source is monitored for voltage levels. This multi-functional approach enables comprehensive monitoring without adding separate dedicated sensors or power sources, thereby limiting the increase in device complexity.
Solution Approach 2:
The receiver assembly monitors its own operational status by using its internal components to measure skin impedance and power voltage. The system self-diagnoses its condition by comparing its own measurements against thresholds and generates alerts autonomously, eliminating the need for external monitoring equipment and reducing overall system complexity.
3Loss of time
If threshold-based alerting is implemented to notify users of strip replacement needs, then the loss of time for detecting poor contact is reduced, but the device complexity increases due to threshold comparison logic
Solution Approach 1:
The system monitors changes in electrical parameters (skin impedance and power voltage) over time and triggers alerts when these parameters exceed predetermined threshold values. By establishing fixed threshold criteria for impedance and voltage levels, the system enables rapid detection of poor contact or power degradation without requiring complex algorithms, achieving quick response through simple parameter-based decision logic.
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
The solution ensures timely replacement of strip components, preventing signal detection failures and maintaining the functionality of wearable receiver assemblies by providing proactive alerts based on impedance and voltage thresholds.
Implementation Method 1
receiving, by a computer system, a skin impedance measurement of the electrode from the receiver
Implementation Method 2
receiving, by the computer system, a voltage measurement of the power source from the receiver
Data Source
AI summary
Systems and methods for monitoring a receiver assembly configured to detect an ingestible event marker signal, the receiver including a disposable component and a reusable component. The methods can include monitoring the skin impedance experienced by the electrodes of the receiver assembly to determine whether the receiver assembly has poor contact quality or is off-body to notify the user accordingly. The methods can also include monitoring a power source level of the receiver assembly, which can be normalized according to the temperature of the receiver assembly, to determine when the power source is at a critical level to notify the user accordingly.