Method of measuring the oxygen saturation in pulsating blood flow
US5448991A · kind A · utility
259Cited by
11References
8Claims
0Family size
Inventors
Key dates
| Filing date | Jun 1, 1992 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Jun 1, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/1244
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved pulse oximeter for the measurement of oxygen saturation in the blood, which is faster and more accurate than conventional pulse oximeter. Improved speed and accuracy is attached by elimination of normalization and feedback circuitry and the use of analog to digital converting devices having a wide dynamic range along with a sophisticated computer analysis. The instant invention eliminates inaccuracies resulting from channel matching errors, and detects and eliminates aberrant input data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.