Method and apparatus for detecting fetal blood oxygen saturation, computer-readable storage medium and computer device
US11375906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 25, 2019 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Jul 1, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2503/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for detecting fetal blood oxygen saturation, including: using at least two detection light of different wavelengths, to irradiate a fetus in an examined pregnant woman's abdomen in a time-sharing manner and acquiring first photoplethysmography signals corresponding to the abdomen under irradiation of the respective wavelengths of detection light, and to irradiate a detection site except the examined pregnant woman's abdomen in a time-sharing manner and acquiring second photoplethysmography signals corresponding to the detection site under irradiation of the respective wavelengths of the detection light; determining a target photoplethysmography signal of the fetus that corresponds to the detection light of each wavelength, according to the first photoplethysmography signals and the second photoplethysmography signals that correspond to the detection light of each wavelength; and determining the fetal blood oxygen saturation, according to respective target photoplethysmography signals determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.