Detection and monitoring of atrial fibrillation
US9986921B2 · kind B2 · utility
41Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2015 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | May 1, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7282
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A real-time arrhythmia discrimination method is used in smartphones, which can discriminate between NSR, AF, PACs and PVCs using pulsatile time series collected from a smartphone's camera. To increase the sensitivity of AF detection and add the new capabilities of PVC and PAC identification, the arrhythmia discrimination method of these teachings combines Root Mean Square of Successive RR Differences (RMSSD), Shannon Entropy (ShE) and turning point ratio (TPR), with the Poincare plot, and utilizes the features of pulse rise/fall time and amplitude for arrhythmia discrimination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.