Device and method for detecting atrial fibrillation
US8121675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Sep 6, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/361
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Detection of atrial fibrillation involves detecting a plurality of ventricular events and obtaining a series of probabilities of AF, each corresponding to a probability of AF for a different beat window having a plurality of ventricular events. AF onset is detected when one or each of a plurality of consecutive AF probabilities satisfies an AF trigger threshold. AF termination is detected when one or each of a plurality of consecutive AF probabilities does not satisfy the AF trigger threshold. Upon detection of AF onset, ventricular events are processed to detect for a sudden onset of irregularity of the ventricular events. AF onset is confirmed when sudden onset is detected and overturned when sudden onset is not detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.