Method of non-invasive determination of oxygen saturation in tissue in which blood is circulating
US6151107A · kind A · utility
117Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Jan 15, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/314
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method for the non-invasive determination of the oxygen saturation in tissue supplied with blood, the tissue is irradiated with red and infrared light and the DC and AC components of the emerging light are measured. During a first time interval, a calibration factor k is determined from the DC and AC components of the emerging light. During a second time interval, the oxygen saturation in the tissue is computed progressively from the DC components of the emerging light and the determined calibration factor k.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.