Systems and methods for determining physiological information by identifying fiducial points in a physiological signal
US9687159B2 · kind B2 · utility
1Cited by
94References
11Claims
0Family size
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Key dates
| Filing date | Feb 27, 2013 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/085
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient monitoring system may generate a derivative signal from a physiological signal. The derivative signal may be filtered based on a pulse rate estimate associated with the physiological signal. A plurality of crossing points may be determined for the filtered derivative signal and translated to the derivative signal. A plurality of fiducial points may be determined for the derivative signal based on the plurality of crossing points. The plurality of fiducial points may be utilized to determine physiological information from the physiological signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.