ECG Artifact Filtering for Continuous CPR Rhythm Analysis
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Solution Overview
Problem
Existing systems fail to effectively filter noise artifacts from electrocardiogram (ECG) signals during cardiopulmonary resuscitation (CPR), leading to sub-optimal analysis and administration of CPR and defibrillation therapy, which is critical for improving survival rates in sudden cardiac arrest scenarios.
Innovation Solution
A system and method that includes a processor-configured external medical device with a filter mechanism to remove chest compression artifacts from ECG signals, enabling real-time analysis and optimization of CPR and therapy delivery based on patient-specific conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If chest compressions are performed during CPR, then blood circulation is maintained, but ECG signal quality deteriorates due to compression artifacts
Solution Approach 1:
The patent extracts and removes compression artifacts from the ECG signal using digital filtering techniques. The filter specifically targets and eliminates the harmful frequency components generated by chest compressions, separating the useful ECG information from the harmful compression artifacts to enable accurate rhythm analysis during ongoing CPR
Solution Approach 2:
The patent introduces an intermediary filtering mechanism between the ECG electrode and the analysis system. This intermediary component (the digital filter) processes the raw ECG signal to remove compression artifacts before the signal is used for rhythm detection and defibrillation decisions, allowing both CPR continuation and accurate ECG monitoring
2Measurement precision
If CPR is paused for ECG analysis, then measurement precision improves, but loss of time increases
Solution Approach 1:
The patent enables continuous ECG monitoring and analysis during ongoing CPR by implementing real-time digital filtering of compression artifacts. This allows the useful action of CPR to continue uninterrupted while simultaneously performing accurate ECG analysis, eliminating the need to pause compressions for rhythm checks
Solution Approach 2:
The patent replaces the mechanical approach of pausing CPR to manually assess ECG quality with an electronic/digital solution. The digital filter automatically removes compression artifacts from the ECG signal in real-time, substituting manual interruption with automated signal processing that maintains both CPR continuity and analysis accuracy
Data Source
AI summary
The system and method provide for electrocardiogram analysis and optimization of patient-customized cardiopulmonary resuscitation and therapy delivery. An external medical device includes a housing and a processor within the housing. The processor can be configured to receive an input signal for a patient receiving chest compressions and to select at least one filter mechanism and to apply the filter mechanism to the signal to at least substantially remove chest compression artifacts from the signal. A real time dynamic analysis of a cardiac rhythm is applied to adjust and integrate CPR prompting of a medical device. Real-time cardiac rhythm quality is facilitated using a rhythm assessment meter.