Arrhythmia Diagnosis via Shim Number Calculation
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Solution Overview
Problem
Current methods lack a clear diagnostic basis for identifying and predicting arrhythmias such as tachycardia and fibrillation, which are major threats to life, as they often go undetected until severe, leading to high mortality rates.
Innovation Solution
An arrhythmia-diagnosing device and method that measure heart characteristic length, frequency, and conduction velocity of cardiac electrical waves to determine the occurrence of arrhythmias using a non-dimensional parameter, specifically the shim number [Sh], to predict and diagnose electrical wave tornados and reduce mortality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional arrhythmia diagnosis methods are used, then treatment can be provided after arrhythmia onset, but early prediction and diagnosis capability is lost
Solution Approach 1:
The patent calculates the Shim number as a predictive indicator before arrhythmia occurs. By measuring heart characteristic length, electrical wave frequency, and conduction velocity, and computing the Shim number from these parameters, the system performs preliminary assessment of arrhythmia risk, enabling early intervention before the actual arrhythmia event
Solution Approach 2:
The Shim number serves as an intermediary parameter that mediates between the physical measurements (heart characteristic length, frequency, conduction velocity) and the clinical diagnosis of arrhythmia risk. This dimensionless number translates complex physiological measurements into a single predictive metric that indicates likelihood of arrhythmia development
2Measurement precision
If comprehensive arrhythmia monitoring is implemented, then prediction accuracy improves, but device complexity increases
Solution Approach 1:
The patent extracts only the essential parameters needed for arrhythmia prediction: heart characteristic length, electrical wave frequency, and conduction velocity. By focusing on these three key measurements and deriving the Shim number from them, the system achieves accurate prediction without requiring comprehensive monitoring of all cardiac parameters, thus reducing device complexity while maintaining precision
Solution Approach 2:
The patent transforms multiple physical parameters (length, frequency, velocity) into a dimensionless Shim number through parameter combination. This transformation simplifies the diagnostic output from multiple complex measurements to a single predictive metric, reducing the complexity of the diagnosis system while preserving measurement precision
Data Source
AI summary
Disclosed is an arrhythmia-diagnosing method and device for diagnosing arrhythmias, such as fibrillation or tachycardia. The arrhythmia-diagnosing method includes the following steps: measuring (a) the heart characteristic length, and the (b) frequency and (c) conduction velocity of the cardiac electrical wave; and (d) determining the occurrence or absence of an arrhythmia by using the three parameters measured in steps (a) to (c). With this invention, it is possible to predict and diagnose an electrical wave tornado, one of the causes of arrhythmia, by using a non-dimensional parameter, to identify patients at risk of death or brain death due to an arrhythmia and to reduce the mortality of patients suffering from arrhythmias significantly.