Device, system and method for detecting apnoea of a subject
US10524725B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2015 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Apr 14, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7246
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device, system and method unobtrusively and reliably detect apnoea of a subject (2). An input unit (11) receives image data of subject. The image data includes a sequence of images over time. A cardiac activity extraction unit (12) extracts from the image data a cardiac activity signal representing the subject's cardiac activity from a skin area of the subject using remote photoplethysmography. A motion signal extraction unit (14) extracts from said image data a motion signal representing motion of a subject's body part caused by breathing of the subject. An analysis unit (16) determines a similarity between said cardiac activity signal and said motion signal. A decision unit (18) detects apnoea of the subject based on the determined similarity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.