Continuous spectroscopic measurement of total hemoglobin
US7319894B2 · kind B2 · utility
64Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2006 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Sep 13, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7203
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods for measuring the total hemoglobin of whole blood include measuring reflective light at multiple wavelengths within the visible spectrum, calculating light absorbance at each of the multiple wavelengths, performing a comparison in a change in like absorbance between the multiple wavelengths, and/or relating the comparison to total hemoglobin. A system for measuring total hemoglobin of whole blood may include at least one light source, a catheter, optical fibers, at least one photodetector, data processing circuitry, and/or a display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.