Method and apparatus for ECG signal analysis and cardiac arrhythmia detection
US5271411A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1991 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Sep 10, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/366
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for arrhythmia detection comprise steps and means for acquiring at least one continuous analog signal produced by an ECG system, producing at least one digital signal based on the analog signal, producing a plurality of scalar signals from the at least one digital signal, extracting features from the scalar signal, and plotting the extracted features in a feature space having a number of dimensions equal to the number of extracted features. A normal QRS complex is identified based on the population of QRS complexes located within clusters of QRS features within the feature space. Subsequent QRS complexes acquired after identification of the normal QRS complex are labeled based on a plurality of rules and the location of each subsequent QRS complex with respect to both prior and subsequent normal QRS complexes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.