Method and system for extracting ventricular fibrillation signals in electrocardiogram using spline interpolation with uniform phase ensembles
US9451898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2016 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Jan 12, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/11
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention discloses a system and a method for extracting VF signal in ECG recorded during uninterrupted CPR. The present invention provides a method for extracting a Ventricular fibrillation (VF) signal in Electrocardiography (ECG), comprising: receiving an ECG signal; adding a plurality of shadowing functions to the ECG signal, to obtain a plurality of modification signals; decomposing the plurality of modification signals by using an Empirical Mode Decomposition (EMD) method, to generate a plurality of Intrinsic Mode Functions (IMFs); calculating the sum of IMFs in different frequency regions based on time sequence, dividing by a number of the shadowing signal, to obtain a plurality of modification intrinsic mode functions; combining the plurality of modification IMFs with the same property, to obtain a shape function; modeling the shape functions to obtain a compression signal; and subtracting the compression signal from the ECG signal based on time sequence, to obtain the VF signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.