Spectroscopic method and apparatus for total hemoglobin measurement
US7449339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2004 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Nov 24, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2300/0809
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for measuring Tot-Hb in a sample are provided. The method involves collecting absorbance measurements of a sample using a spectroscopic apparatus that includes a first primary calibration algorithm for one of Oxy-Hb, “Oxy-Hb plus Deoxy-Hb”, or “Total-Hb minus Met-Hb” and a second primary calibration algorithm for one or more than one of Met-Hb, Carboxy-Hb, or Sulf-Hb, or includes a third primary calibration algorithm obtained by adding terms of the first primary calibration algorithm and the second primary calibration algorithm together. Followed by predicting either a first value for one of Oxy-Hb, “Oxy-Hb plus Deoxy-Hb,” or “Total-Hb minus Met-Hb” and predicting second value for one or more than one of Met-Hb, Carboxy-Hb, or Sulf-Hb in the sample and adding the first and second value together, or predicting a value for Total-Hb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.