Systems and methods for detecting and monitoring arrhythmias using the PPG
US9113830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2011 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Jun 9, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7282
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for detecting and monitoring arrhythmias from a signal are provided. A signal processing system may transform a signal using a wavelet transformation and analyze changes in features of the transformed signal to detect pulse rhythm abnormalities. For example, the system may detect pulse rhythm abnormalities by analyzing energy parameters, morphology changes, and pattern changes in the scalogram of a PPG signal. Further, the system may detect pulse rhythm abnormalities by analyzing both the PPG signal and its corresponding scalogram. Physiological information, such as cardiac arrhythmia, may be derived based on the detected pulse rhythm abnormality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.