Apparatus and method for ECG motion artifact removal
US9931081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2014 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Aug 14, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/725
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention proposes an apparatus for reducing motion artifact in an ECG signal of a patient. The apparatus comprises a calculating unit configured to calculate a mean value beat from the ECG signal; a first obtaining unit configured to obtain a residual signal based on the ECG signal and the mean value beat calculated from the ECG signal; a filtering unit configured to perform filtering of the residual signal with one or more cut off frequencies; a second obtaining unit configured to obtain a modified ECG signal based on the filtered residual signal and the mean value beat; and a determining unit configured to determine the one or more cut off frequencies of the filtering based on an acceleration signal representative of motion status of the patient. By using the proposed apparatus, motion artifacts can be greatly removed from the ECG signal and the quality of the ECG signal can be therefore improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.