ECG Analyzer Arrhythmia Reference Waveform Determination
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Solution Overview
Problem
Existing electrocardiogram analyzers often incorrectly determine a waveform of arrhythmia as a reference waveform during learning, leading to overlooked arrhythmia detection and inefficient analysis, especially when learning occurs during arrhythmia events.
Innovation Solution
An electrocardiogram analyzer with a determination unit to assess arrhythmia in measured heartbeats, a reference waveform determination unit to establish a reference waveform when no arrhythmia is detected, and an analysis unit to monitor using the stored reference waveform, along with an alarm generation unit for arrhythmia alerts, and an optional manual override for reference waveform selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electrocardiogram complex learning is performed at the start of measurement, then the apparatus can begin monitoring arrhythmia, but a waveform of arrhythmia may be incorrectly determined as a reference waveform
Solution Approach 1:
The determination unit performs preliminary arrhythmia determination on a plurality of heart beats before the reference waveform determination unit selects a reference waveform. This preliminary check prevents arrhythmic waveforms from being incorrectly selected as reference waveforms, ensuring reliable baseline establishment before monitoring begins
Solution Approach 2:
The system incorporates feedback mechanisms where the determination unit continuously evaluates heart beats against arrhythmia criteria. When arrhythmia is detected during the learning phase, the system adjusts its reference waveform selection accordingly, preventing incorrect reference establishment and enabling appropriate alarm generation
2Loss of information
If multiple representative heart beats are automatically chosen for analysis, then diagnostic information can be obtained, but time is consumed when a user makes a determination
Solution Approach 1:
The apparatus performs automatic arrhythmia monitoring and reference waveform determination without requiring continuous user intervention. The determination unit and reference waveform determination unit operate autonomously to establish baselines and detect arrhythmia, reducing the time users need to spend making determinations while maintaining comprehensive diagnostic capability
Data Source
AI summary
An electrocardiogram analyzer has a measurement section for measuring an electrocardiographic signal; a determination unit for determining, from arrhythmia determination reference information that is information pertinent to arrhythmia, whether or not an electrocardiogram multiplex, which includes a first predetermined number of heart beats, in the thus-measured electrocardiographic signal is arrhythmia; a reference waveform determination unit that determines a reference waveform from the electrocardiogram complex including the first predetermined number of heart beats when the determination unit has determined that the electrocardiogram complex is not arrhythmia, storing the thus determined reference waveform; and an analysis unit that performs an analysis as to whether or not an electrocardiogram complex being measured is arrhythmia by use of the stored reference waveform.