Sensor, method and device for optical blood oximetry
US6031603A · kind A · utility
172Cited by
29References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Jul 9, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/4747
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is described a new sensor for optical blood oximetry as well as a method and apparatus in which the new sensor is used. The new sensor includes two point-like light emitters (23,24) positioned in the center of the device in close proximity to each other and at least one and preferably two annular detector terminals (32,39) concentrically surrounding the light emitters. The light sources may, for example, be two laser diodes emitting each monochromatic light within the range of 670 nm to 940 nm. The detector devices are, for example, photodetectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.