Patient Electrode Contact Detector for Skin Loss Alerting
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Solution Overview
Problem
Defibrillators face challenges in maintaining consistent skin contact, which can lead to ineffective ECG signal acquisition and delivery of electrical shocks, particularly in emergency situations where time is critical, and there is a need for economical solutions for custom RFID tags for specific purposes.
Innovation Solution
The development of patient electrodes with a contact detector that alerts rescuers or patients when full skin contact is lost, combined with RFID technology for remote sensing and alerting, ensuring reliable defibrillation and monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional defibrillator electrodes are used without contact detection, then the device structure remains simple and cost is reduced, but reliable ECG signal acquisition and defibrillation shock delivery cannot be ensured when skin contact is lost
Solution Approach 1:
The electrode system performs self-diagnosis by incorporating contact detectors that automatically monitor skin contact quality. The system serves itself by detecting contact loss and generating alerts without requiring external monitoring equipment or manual inspection, thereby improving reliability while keeping the added complexity minimal through integrated self-monitoring components.
Solution Approach 2:
Contact detectors provide real-time feedback on skin contact quality to the defibrillator system. When contact is lost, the system receives feedback through alert signals that notify users, enabling timely intervention. This feedback mechanism ensures reliable operation by continuously monitoring and responding to contact status changes.
2Reliability
If contact detectors and alert systems are added to electrodes, then skin contact reliability is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The contact detectors serve multiple functions: they monitor skin contact quality, detect electrode displacement, and trigger alerts for both ECG signal acquisition and defibrillation shock delivery. This multi-functionality reduces the need for separate monitoring systems, thereby controlling manufacturing costs while improving defibrillation effectiveness through comprehensive contact monitoring.
Solution Approach 2:
Alert signals act as intermediaries between the contact detectors and the user. These signals translate complex contact status information into simple, actionable notifications that guide user behavior. The intermediary alert mechanism simplifies the user interface and reduces the complexity of implementing comprehensive monitoring systems.
3Difficulty of detecting and measuring
If RFID technology is implemented for remote sensing, then monitoring capability is improved, but device complexity and cost increase
Solution Approach 1:
The system segments the monitoring function by placing RFID tags on individual electrodes rather than requiring a centralized complex monitoring system. Each electrode independently contains the RFID tag for contact detection, distributing the complexity across simple, modular components. This segmentation enables remote sensing capability while keeping individual component complexity low.
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 reliable skin contact detection and alerting, enhancing the effectiveness of defibrillation and monitoring processes, and provides an economical approach to custom RFID applications.
Implementation Method 1
contact detector that can change state, when the pad does not contact fully the skin of the patient
Implementation Method 2
RFID-based sensing of a changed condition... a sensing RFID tag... a detector that can change state
Data Source
AI summary
Patient electrodes, patient monitors, defibrillators, wearable defibrillators, software and methods may warn when an electrode stops being fully attached to the patient's skin. A patient electrode includes a pad for attaching to the skin of a patient, a lead coupled to the pad, and a contact detector that can change state, when the pad does not contact fully the skin of the patient. When the detector changes state, an output device may emit an alert, for notifying a rescuer or even the patient.