Heart Failure Risk Determination System Using Cardiogram Analysis
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Solution Overview
Problem
Current systems for determining heart failure risk are not sufficiently accurate and require physician attendance, as they rely on complex measurements and do not effectively detect postextrasystolic potentiation (PESP) and disturbed force-frequency relations.
Innovation Solution
A determination system that uses cardiograms such as ballistocardiograms, seismocardiograms, or impedance cardiograms to detect peak values and temporal behaviors, including PESP and force-frequency relations, without requiring physician attendance, by employing thresholds and rules to assess heart failure risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex measurements and physician attendance are used, then measurement precision may be improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent extracts and focuses on a specific, simple measurement parameter (peak values of left ventricular pressure) from the complex cardiogram data. By isolating this key parameter and establishing clear thresholds for it, the system achieves accurate HF risk determination without requiring complex measurement procedures or physician attendance, thus resolving the contradiction between precision and complexity
Solution Approach 2:
The patent transforms the complex cardiogram signal into simplified peak value parameters that can be easily measured and compared against predefined thresholds. This parameter transformation allows the system to maintain high measurement precision for HF risk assessment while dramatically reducing the complexity of the measurement process and eliminating the need for physician involvement
2Measurement precision
If complex measurements and physician attendance are used, then measurement precision may be improved, but ease of operation deteriorates
Solution Approach 1:
The system enables self-service HF risk assessment by automatically analyzing cardiogram data and applying predefined thresholds to determine peak values and detect PESP. The automated process eliminates the need for physician attendance and complex manual measurement procedures, making the system easy to operate while maintaining precision through algorithmic analysis of the peak value patterns
Solution Approach 2:
The patent replaces manual physician assessment with an automated computational system that processes cardiogram data through defined algorithms. The mechanical/Manual inspection process is substituted with electronic signal processing and automated threshold comparison, significantly improving ease of operation while preserving measurement precision through systematic computational analysis
3Ease of operation
If simple sensors are used, then ease of operation and device simplicity are improved, but measurement precision deteriorates
Solution Approach 1:
The patent performs preliminary action by pre-establishing threshold values and detection rules for peak patterns before actual measurement occurs. These predefined criteria enable simple sensors to accurately detect PESP and determine HF risk by comparing measured peak values against the pre-set thresholds, thus achieving both ease of operation with simple sensors and sufficient measurement precision for clinical application
4Productivity
If automated detection without physician attendance is used, then ease of operation and productivity are improved, but reliability may deteriorate
Solution Approach 1:
The system incorporates feedback mechanisms by continuously monitoring peak value patterns and comparing them against predefined thresholds to detect PESP. This automated feedback loop enables the system to reliably determine HF risk without physician attendance, improving both productivity through automated processing and reliability through systematic algorithmic verification of cardiac patterns
Data Source
AI summary
The invention relates to a determination system (1) for determining a heart failure risk for a subject (4). The determination system is adapted to provide a cardiogram selected from a group consisting of a ballistocardiogram, a seismocardiogram and an impedance cardiogram of the subject, to detect at least one of a presence of a postextrasystolic potentiation (PESP) and a disturbed force-frequency relation (FFR) based on the provided cardiogram and to determine the heart failure risk based on this detection. By using the detection of the presence of the PESP and/or of a disturbed FFR, the heart failure risk can be reliably determined. In particular, it can be determined that the heart failure risk is relatively large, if a PESP is not present and/or if the FFR is disturbed.