Apparatus for measuring circulating blood volume
US5697371A · kind A · utility
67Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1994 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Dec 19, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0275
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Using the principle of pulse oximetry, the relationship between the logarithm of dye density and the passage of time is obtained to determine a regression line for the linear portion of the relationship; an intial dye density in the blood is determined for the point of time that defines the mean transit time for the initial circulation of the injected dye on the regression line; and the circulating blood volume is calculated from the thus determined initial dye density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.